TVRM75 manual 505-003080-0001E_OBS

TVRM-75DVB MODULATOR

TRANSMITTER ON

POWER ON

SYNC

TEST MODE

TRANSMIT

TRANSMIT STORED

ALARMSFAULTS

ENTER

CLEAR

TVRM75

DVB Satellite Modulator

Copyright 1996-1999 Tiernan Communications, Inc. TVRM75 Operator Manual, Revision E, 06/21/99

TPN: 505-003080-001

ii

Notice

This manual and its contents are proprietary to Tiernan Communications, Inc. (Tiernan) and are intended solely for the contractual use of its customers for no other purpose than to install and operate the equipment described herein. This manual and its contents shall not be used or distributed for any other purpose and/or otherwise communicated, disclosed, or reproduced, in any way whatsoever, without prior written consent of Tiernan.

Only experienced personnel should install and/or operate this equipment. Prior to installing or operating any of the equipment or parts thereof, personnel must carefully read and understand all of the contents of this manual. To properly install and operate this equipment and/or all parts thereof, personnel must strictly and explicitly follow all of the instructions in this manual.

FAILURE TO COMPLETELY READ AND FULLY UNDERSTAND AND FOLLOW ALL OF THE CONTENTS OF THIS MANUAL PRIOR TO INSTALLING AND/OR OPERATING THIS EQUIPMENT, OR PARTS THEREOF, MAY RESULT IN INJURY TO PERSONNEL AND/OR DAMAGE TO THE EQUIPMENT, OR PARTS THEREOF.

Tiernan does not assume any liability arising out of the application or use of any products, component parts, circuits, software, or firmware described herein. Tiernan further does not convey any license under its patent, trademark, copyright, or common–law rights nor the similar rights of others. Tiernan further reserves the right to make any changes in any products, or parts thereof, described herein without notice.

Copyright ©1996-1999 Tiernan Communications, Inc.

iii

Restricted Rights

The contents are provided with RESTRICTED RIGHTS. Use, duplication, or disclosure by the government is subject to restrictions as set forth in subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software [OCT. 1988] clause at DFARS 252.227–7013 and subparagraphs (a) through (d) of the Commercial Computer Software–Restricted Rights [JUNE 1987] clause at FAR 52.227–19, as applicable. Manufacturer is Tiernan Communications, Inc., 5751 Copley Drive, San Diego, CA 92111 U.S.A.

No Warranty

The contents of this manual are provided “as is” without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability, fitness for a particular purpose, and non–infringement.

The contents of this publication could include technical inaccuracies or typographical errors. Changes are periodically added to the information herein. These changes will be incorporated in new editions of this manual. Tiernan may make improvements and/or changes in the product(s) and/or the program(s) described in this manual at any time without notice.

iv

Limitation of Liability

In no event will Tiernan be liable for direct, indirect, special, incidental, economic, cover, or consequential damages arising out of the use or inability to use the contents even if advised of the possibility of such damages. Some jurisdictions do not allow the exclusion or limitation of implied warranties, or the limitation of liability for incidental or consequential damages, so the above limitation or exclusion may not apply to you.

For further information on legal and intellectual property matters, contact Tiernan Communications Corporate Counsel.

WARNING: Electric Shock Hazard!

Do Not Open The Equipment!Service Only By Tiernan Communications, Inc.

Gefährliche Spannung!Öffuen des Gerätes und Service nur durTiernan Communications, Inc.

The TVRM75 Satellite Modulator contains no user–serviceable parts. Do not attempt to service this product yourself. Any attempt to do so will invalidate any and all warranties.

DANGER!Electric Shock

Hazard

v

Contents

Introduction...........................................................................viiAbout this Manual....................................................................................viiWarning Notices .......................................................................................viiRevision Record ...................................................................................... viiiTVRM75 Shipping Cartons and Packing Materials .............................. ixPacking Slip ................................................................................................ ixShipping Errors .......................................................................................... ixCartons and Packing Materials................................................................ ixEquipment Repacking Instructions......................................................... ix

Chapter 1 OVERVIEW ............................................................................13Introduction............................................................................................... 13Modulator Assemblies ............................................................................. 15Modulator Specifications......................................................................... 15Fault Tree ................................................................................................... 19

Chapter 2 INSTALLATION .....................................................................21Unpacking.................................................................................................. 21Installation ................................................................................................. 22Remove and Install Data Interfaces ....................................................... 24External Connections ............................................................................... 25Remote Connector & Pinout (J1) ............................................................ 26Fault Connector (J2).................................................................................. 27Transmit IF Output (CP1)........................................................................ 28AC Power................................................................................................... 28Ground (GND) .......................................................................................... 28Proper Operations for Emissions (CE)................................................... 28

Chapter 3 OPERATION ..........................................................................29Introduction............................................................................................... 29Front Panel................................................................................................. 30Front Panel Keypad.................................................................................. 32Menu System ............................................................................................. 33Main Menu................................................................................................. 34Configuration Menus ............................................................................... 35Faults/Alarms Menus.............................................................................. 44Utility Menus............................................................................................. 51Defaults after Firmware Upgrade or Hard Reset................................. 63

vi

Contents

Appendix A DATA INTERFACES..............................................................67Description................................................................................................. 67Software Requirement.............................................................................. 68RS-422 Parallel/Serial Interface .............................................................. 68Description................................................................................................. 69Configuration ............................................................................................ 70User Interfaces ........................................................................................... 72Serial, J4, DB25 Female (EIA-530 Serial Data Interface) ...................... 75RS-422 Front Panel Menus....................................................................... 78RS-422 Remote Commands ..................................................................... 80ASI & RS-422 Data Interface.................................................................... 82Description................................................................................................. 83User Interfaces ........................................................................................... 86ASI & RS-422 Front Panel Menus ........................................................... 88ASI & RS-422 Remote Commands.......................................................... 90

Appendix B REMOTE CONTROL OPERATION .......................................95General........................................................................................................ 95Message Structure..................................................................................... 95Start Character........................................................................................... 96Device Address ......................................................................................... 96Command/Response ............................................................................... 96End Character ............................................................................................ 97Configuration Commands/Responses .................................................. 97Stored Faults ............................................................................................ 109

Appendix C Restoring TVRM75 Factory Defaults ................................111Purpose..................................................................................................... 111Factory Default for ASI Data Input ...................................................... 112Factory Default for Serial RS422 Data Input ....................................... 115

Glossary ..............................................................................119

Index ....................................................................................129

viiAbout this Manual

Introduction

This section describes the TVRM75 manual conventions.

About this ManualThis manual describes the installation, operation, and performance specifications of the Tiernan Communications, Inc. (Tiernan) TVRM75 and is designed to lead you through unpacking the TVRM75 and completing the setup, cabling, configuration, and operational tasks.

A list of customer service contacts and procedures for returning the TVRM75 should it need repair are also included.

WarningNotices

Throughout this manual you will find three types of warning notices that are designed to assist you in identifying important information. An example of each is provided below.

HAZARD:

The Hazard symbol identifies the possibility of electric shock when you perform an operation with the TVRM75 or if you do not use the TVRM75 according to instructions.

CAUTION:

The Caution symbol identifies an area that requires special attention to detail or poses the possibility of injury, excluding injury resulting from electric shock.

DANGER!Electric Shock

Hazard

CAUTION!Please Read

Carefully

viii

Introduction

Revision Record

NOTE:

The Note symbol identifies points of interest or information rele-vant to a procedure or process.

NOTE...

Revision Record

TPN: 505–003080–0001

Revision A, 12/20/96Initial release of the manual.

Revision B, 03/04/98Technical and editorial revisions. Compatible with firmware v.4.1.1+

Revision C, 12/11/98Updated manual to reflect 8PSK options, features, and functionality. Compatible with firmware v.5.3.1+

Revision D, 01/11/99Updated Chapter 3 — added the Tx Coding Format command to the Configuration Interface Menu and updated the RS-422 Utility Interface Menu; updated Appendix A — corrected the ASI and RS-422 Specifications table and the ASI Loopback J6/J7 BNC Output Connectors description. Compatible with firmware v.5.3.1+

Revision E, 6/21/99Updated telephone and fax numbers to reflect new area code. Made minor format revisions. Compatible with firmware v.5.3.1+

ixTVRM75 Shipping Cartons and Packing Materials

TVRM75 Shipping Cartons and Packing Materials

Packing Slip Please verify that your company name and address are correct on the packing slip that is included with your equipment and notify Tiernan Communications Product Support if any of the information is not correct. Also, please note the purchase order number, reference line, model, and Tiernan sales order numbers and include them in any correspondence with Tiernan concerning your order.

ShippingErrors

If any part of your shipment is missing, call Tiernan Communications Product Support at 858.587. 0252 or send a fax to 858.587. 0257. For immediate assistance, call our 24– hour customer service paging system at 858.587.0252, extension 500.

Cartons and Packing Materials

Note that the factory shipping carton and packing materials are specially designed to protect the enclosed equipment from the excessive shocks and vibrations that can occur during shipping. Please retain the shipping carton and all of the packing materials and use them to ship the unit to a final destination or to return the unit to Tiernan for repair. Repacking instructions are listed in the following section.

Equipment Repacking Instructions

To repack the TVRM75 for shipment to another location or to return the unit to Tiernan for repair, please use the original shipping carton and packing materials. Before you begin to repack the equipment, perform the following inspections:

1. Inspect the shipping carton to ensure that it does not have any holes punched through it and that all four sides are sturdy and are firmly attached to the adjacent walls, top, and bottom of the car-ton.

2. Ensure that both specially designed suspension frames are avail-able for use in repacking the equipment. The suspension frames look like a cardboard frame with a sheet of clear plastic stretched over the opening.

3. Inspect the two suspension frames to ensure that the cardboard frames are in one sturdy piece, and the plastic is not torn or ripped apart from the frames.

x

Introduction

4. If you believe the carton or packing materials will not properly protect the equipment during shipping, contact Tiernan Communi-cations Product Support.

If you believe the carton and packing materials will properly protect the equipment during shipment, repack the equipment following the instructions listed below.

1. Place the first suspension frame into the shipping carton with the plastic film side facing up and away from the bottom of the ship-ping carton. The plastic attached to the suspension frame must not be touching the bottom of the shipping carton. When the equip-ment is placed into the shipping carton, the equipment should be suspended on the top of the plastic. If the first suspension frame is placed in the shipping carton with the plastic film against the bot-tom of the shipping carton, the equipment will rest on the bottom of the shipping carton and will not be protected from shocks and vibrations.

2. Place the equipment into the shipping carton and onto the center of the plastic suspension frame.

CAUTION: Carefully Follow the Repacking Instructions

If the suspension frames are not packed into the shipping carton as instructed below, the equipment may be severely damaged during shipping and handling.

CAUTION!Please Read

Carefully

xiTVRM75 Shipping Cartons and Packing Materials

3. Place the second suspension frame into the shipping carton with the plastic film side facing down towards the top of the equip-ment. The plastic attached to the suspension frame must be placed against the top of the equipment, so that the equipment is fully suspended between the first suspension frame and the second suspension frame. When you place the second suspension frame on top of the equipment, the second suspension frame will extend higher than the top edge of the shipping carton; however, when you close the carton, the second suspension frame will easily fit into the carton. The pressure applied to the second suspension frame will help hold the equipment in place between the two sus-pension frames.

4. Close the carton, and reseal the carton with adhesive tape. Once the carton is sealed, the packing materials create tension around the equipment that holds the equipment securely between the two plastic sheets and safely away from shocks and vibrations.

xii

Introduction

13Introduction

Chapter 1 OVERVIEW

This chapter provides a product overview, a list of the internal assemblies, and the specifications for the TVRM75 satellite modulator

Introduction The TVRM75 is a programmable, variable-rate satellite modulator used for digital video and high-speed data applications. The modulator supports open network modes compliant with the ETSI EN 300 421/prEN 301 210 specification for Digital Video Broadcasting (DVB) by satellite.

A block diagram for the modulator is shown below.

The modulator utilizes a plug-in data interface module installed in the rear of the chassis. The data interface module provides flexible adaptation to the various physical and electrical interfaces found in the communications industry. Refer to Appendix A for a detailed description of the data interface module.

The data rate of the modulator is programmable from 1.5 to 100 Mbit/s. The maximum symbol rate is 37.5 Msym/s. The minimum symbol rate is limited by the minimum 1.5 Mbit/s data rate.


TRANSMITTER ON

POWER ON

SYNC

TEST MODE

TRANSMIT

TRANSMIT STORED

ALARMSFAULTS

ENTER

CLEAR

USERIN TER FAC E

PLUG-IN

DATA

IN TER FAC E

SYNC HAND

RANDO MIZE

RS CODERAND

IN TER LEAVER

VITERB I CO DERAND

M APPING

DATA FILTERAND

M OD ULATOR

SYNTHESIZERM &C

REM O TE PORTAND FA ULTS

TO/FROMSYNC H AND R ANDOM IZE

RS CODER A ND INTERLEAVERVITERB I CO DER AND M APPINGDATA FILTER AND M ODULATO R

SYNTHESIZER

TXIF

Chapter 114

OVERVIEW

Modulation formats include QPSK, 8PSK, and a future option for 16QAM. Operation is based upon the DVB/DBS standard for QPSK and 8PSK.

Table 1-1 lists the minimum and maximum data and symbol rates for each code rate at the Tiernan default framing type 188. See the specifications section for the maximum data rate limits for framing types 187 and 204.

The modulator incorporates concatenated error correction coding for improved signal quality. With concatenated coding, an outer Reed-Solomon codec is used in tandem with an inner Viterbi or trellis type codec. The Reed-Solomon coding is DVB (based on 188, 204, 8 type code), while the Viterbi and trellis codes are based upon a constraint length K = 7 convolutional coding. This combination significantly reduces the required operating power of the satellite system.

The modulator is a complete, self-contained unit in a standard, one-unit (1U) 19” rack-mountable enclosure. It includes a backlit LCD display and a 6-button keypad for user control.

A status and control port (available through a 9-pin D connector at the rear of the chassis) provides either serial RS-232 or RS-485 for remote control applications. A second rear-panel 9-pin D connector provides fault/alarm status.

The unit is designed to meet stringent safety and RF emissions standards, including CE Mark certification. See Chapter 2 for information regarding proper operation for CE emissions.

Table 1-1 Minimum/Maximum Data and Symbol Rates

Code RateMinimum Data

Rate (bit/s)Maximum Data

Rate (bit/s)Minimum Symbol

Rate (sym/s)Maximum Symbol

Rate (sym/s)QPSK 1/2 1,500,000 34,558,824 1,627,660 37,500,000QPSK 2/3 1,500,000 46,078,431 1,220,745 37,500,000

QPSK 3/4 1,500,000 51,838,235 1,085,106 37,500,000QPSK 5/6 1,500,000 57,598,039 976,596 37,500,000QPSK 7/8 1,500,000 60,477,941 930,091 37,500,000

8PSK 2/3 1,500,000 69,117,647 813,830 37,500,0008PSK 5/6 1,500,000 86,397,059 651,064 37,500,0008PSK 8/9 1,500,000 92,156,863 610,372 37,500,000

16QAM Future Option

15Modulator Assemblies

Modulator Assemblies

The modulator consists of the following assemblies:

TVRM75 QPSK Modulator with an ASI and RS-422 Serial Interface

TVRM75 QPSK Modulator with an RS-422 Serial/Parallel Interface

TVRM75 Modulator with 8PSK and an ASI and RS-422 Serial Interface

Modulator Specifications

Table 1-2 lists the modulator specifications.

Table 1-2 Modulator Specifications

General SpecificationsTransmission Format QPSK per EN 300 421

8PSK per prEN 301 210, optionalData Rate 1.5 to 100 Mbit/s, in 1 bit/s stepsSymbol Rate Range See Table 1 for reference

Minimum symbol rate is based upon minimum data rate of 1.5 Mbit/sMaximum symbol rate is 37.5 Msym/sSymbol Rate (SR) Definition:

SR = (Data Rate) x 1/(m x CRv x CRrs), where:m = modulation indexCRrs = Reed-Solomon outer code rate (188/204)

CRv = Viterbi/trellis inner code rateMaximum Data Rate Framing Type Data Rate

187

188204

SR x m x CRv x (187/204), < 100 Mbit/s

SR x m x CRv x (188/204), < 100 Mbit/sSR x m x CRv x (204/204), < 100 Mbit/s

Maximum Data Rate - QPSK Framing Type 1/2 2/3 3/4 5/6 7/8187 34375000 45833333 51562500 57291667 60156250188 34558824 46078431 51838235 57598039 60477941

204 37500000 50000000 56250000 62500000 65625000

Chapter 116

OVERVIEW

Maximum Data Rate - 8PSK Framing Type 2/3 5/6 8/9187 68,750,000 85,937,500 91,666,667188 69,117,647 86,397,059 92,156,863

204 75,000,000 93,750,000 100,000,000Data Rate Tolerance Programmed rate ±100 ppmModulation Type & Inner Code Rate

QPSK: 1/2, 2/3, 3/4, 5/6, 7/8

8PSK: 2/3, 5/6, 8/9 optionalOuter Code Rate (Reed-Solomon)

RS (204, 188, t = 8)

Interleaving Depth 12, per EN 300 421 and prEN 301 210Spectral Shaping Square-root raised cosine, α = 0.35 per EN 300 421 and prEN 301 210Scrambling EN 300 421, prEN 301 210, or none

Front Panel Interface Keypad + LCD with backlightingM&C Interface RS-232/RS-485, 9-Pin D female, serial, asynchronousFault Interface FORM-C, 9-Pin D female

Input Power 90 to 264 VAC, 47 to 63 Hz Universal Type, 50W MaximumPhysical:

Size

Weight

19” W x 1.75” H x 14” D (1RU)

< 10 lbs.Environmental

Temperature

Humidity

0 to +50°C (Operating)-40 to +70°C (Storage)< 90%, non-condensing

Modulator SpecificationsTransmit IF Output 50 to 180 MHz, 2.5 kHz steps

-20 to +5 dBm in 0.1 dB steps (± 0.5 dB accuracy)

18 dB return loss minimumModulation and Coding Formats Refer to Table 1Transmit IF Impedance 75ΩOptional Transmit IF Impedance 50ΩIF Output Connector BNC, femaleTransmit Spurious -55 dBc minimum in 4 kHz bandwidth relative to unmodulated carrier

Transmit Carrier Isolation -60 dBm minimum when TX carrier = OFFAC Line Spurious -36 dBc maximumReference Stability +/- 10 ppm

Table 1-2 Modulator Specifications (continued)

17Modulator Specifications

Transmit Carrier Phase Noise (Single Sideband)

Max dBc/Hz

Carrier Offset (Hz)

-66 100 Hz-76 1 kHz

-86 10 kHz-96 100 kHz-96 1 MHz

Amplitude and Phase Imbalance ± 0.2 dB, maximum; ± 2°, maximumCarrier Null 30 dB, minimumScrambling DVB and None

Group Delay Within EN 300 421 and prEN 301 210Fault SpecificationsStatus Relays TX Fault, TX Alarm, Common Equipment

Remote Control SpecificationsAsynchronous Serial Interface RS-485 (2-/4-wire), or RS-232Baud Rate 300, 600, 1200, 2400, 4800, 9600, or 19200 bit/s

Serial Format ASCIIData Bits 7 bits with odd/even parity; 8 bits with no parityStop Bits 2

Parity Odd, Even, or NoneRemote Port Addressing Range: 1 to 255Signals Controlled:

Data Data RateScrambler On/Off (Test Mode)DVB Framing Type (None, 188, 204)

Modulation, Coding Modulation Type: QPSKCode Rate (Viterbi/trellis) Spectral Mask, DVB

Carrier Transmit IF FrequencyTransmit Output (On/Off)Transmit Output Power Level

Spectral Inversion: Normal/Inverted


Chapter 118

OVERVIEW

Test (Where Applicable) Pure Carrier

Dual Carrier (Carrier Null)Offset Carrier (Single Sideband)Data Loopback

LED TestReset

General Date and Time

Software/Firmware Version and Unit IdentificationDisplay ContrastAll Other Configuration Items

Status Modulator RateModulator Configuration Modulator/Coder Configuration Programming

Interface ConfigurationModem FaultsModulator

InterfaceCommon EquipmentAll other configuration items

Faults Loss of Clock, or Out of ToleranceData Stable, all 1s (AIS), or all 0s

Loss of SynchronizationIF Synthesizers

Configuration Retention Non-volatile

Will maintain current configuration for at least one year without prime power


19Fault Tree

Fault Tree Table 1-3 lists the modulator fault tree information.

The following list identifies the interface:

1. EIA-4222. ASI

Table 1-3 Modulator Fault Tree

PARAMETERFLT LED

FLT RLY

RF OUT

ALM LED

ALM RLY

TX AIS

SYNC LED

COM EQ FLT INTERFACES

ModulatorIF Synthesizer On On Off On AllData Clock SYN On On Off On All

I Channel On On Off On AllQ Channel On On Off On AllAGC Level On On Off On All

Module On On Off On AllIF Module On On Off OnConfiguration On On Off On All

TX InterfaceFrame SYNC On On On Off AllData Stable/AIS On On All

Clock PLL On On Off On AllClock Activity On All

FIFO On On AllInterface Module On On On AllData Format On On 2

CEQBattery/Clock On-12 Volt Supply On On

+12 Volt Supply On On+5 Volt Supply On OnController On On

Chapter 120

OVERVIEW

21Unpacking

Chapter 2 INSTALLATION

This chapter provides unpacking and installation instructions, and a description of external connections.

Unpacking The modulator and manual are packaged in pre-formed, reusable, cardboard cartons containing foam spacing for maximum shipping protection.

To remove the modulator:

1. Cut the tape at the top of the carton indicated by OPEN THIS END.

2. Remove the cardboard/foam space covering the modulator.3. Remove the modulator, manual, and power cord from the carton.4. Save the packing material for storage or reshipment purposes.5. Inspect the equipment for any possible damage incurred during

shipment.6. Check the equipment against the packing list to ensure the ship-

ment is correct.7. Refer to installation section for instructions.

The equipment contains parts and assemblies sensitive to damage by Electrostatic Discharge (ESD). Use ESD precautionary procedures when touching, removing, or inserting PCBs. CAUTION

Do not use any cutting tool that will extend more than 1” into the container. This can cause damage to the modulator.

CAUTION

Chapter 222

INSTALLATION

Installation A complete modulator consists of the TVRM75 main unit and an optional plug-in data interface. The modulator is shipped with the data interface installed in the main unit. Changing a data interface is easily accomplished in the field and does not require disassembly of the main unit. For information on removing and installing data interface modules refer to section on removing and installing data interfaces.

Install the modulator as follows:

1. Mount the modulator chassis in the assigned position of the equipment rack. Support the modulator by the rack-mounted brackets or a rack-mounted shelf. If a data interface is to be installed, follow the steps described in

the section on Data Interface Installation.

For a custom rack installation, refer to the chassis dimensional drawing in Figure 2-1.

2. Connect the cables to the proper locations on the rear panel. For connector pinouts, placement, and function refer to the section on external connections.

3. The modulator will turn on automatically when the primary pow-er connection is made (plugged in). Before plugging in the modu-lator, become familiar with the front panel operation in Chapter 3.

4. The modulator will initiate a self-test function.5. If there is any problem with the installation, contact Tiernan’s

Customer Support Department.

23Installation

Figure 2-1 Dimensional Drawing

Note: All dimension are listed in inches.

1.75

19.0

1.25

14.0

IER

NA

N

Chapter 224

INSTALLATION

Remove and Install Data Interfaces

The data interface is a removable, plug-in module that provides a terrestrial connection to the modulator. An interface, shown in Figure 2-2, consists of a Printed Circuit Board (PCB) attached to a faceplate. The faceplate contains connectors appropriate for the interface type and two captive, mounting screws.

Figure 2-2 Typical Data Interface Module

Note: After a different interface type has been installed, the modulator recognizes the change upon power up, and defaults to valid interface parameters.

J3P

AR

ALL

EL

J4S

ER

IAL

J5A

UX

To avoid damaging the modulator, always disconnect the power before removing or installing a data interface.

CAUTION

25External Connections

Data Interface Removal

1. Disconnect power from the modulator.2. Use a Phillips screwdriver to loosen the two captive screws on

the faceplate of the data interface.3. Grasp the data interface by the faceplate handle.4. Carefully pull the data interface out of the slot.

Data Interface Installation

1. Disconnect power from the modulator.2. Grasp the data interface by the faceplate handle.3. Locate the opening at the rear of the modulator.4. Carefully align the data interface with the card guides inside the

modulator and insert the data interface into the opening. 5. Push the data interface firmly into the slot, ensuring a good con-

nection.6. Align the captive screws located on the faceplate with the holes on

the modulator rear panel.7. Use a Phillips screwdriver to tighten the screws.

External Connections

The connectors for the main unit are shown in Figure 2-3 and identified in Table 2-1. The connectors for each plug-in data interface are described in Appendix A.

Figure 2-3 Rear Panel

PRIM EPO W ER

GR OUND

J1 REM OTE J2 FAULT DATA INTERFACE CO NNECTION S CP1 TX-IF

Chapter 226

INSTALLATION

The use of each connector is described in the following paragraphs.

Remote Connector & Pinout (J1)

The remote control connection is a 9-pin female D connector located on the rear panel of the modulator. Screw locks are provided for mechanical security of the mating connector.

The remote connector provides a means for issuing commands and determining the unit status. This connector provides RS-232, RS-485 (2-wire), and RS-485 (4-wire) operation. The communications protocol and the control and status commands are described in Appendix B.

Table 2-2 provides the pinout of the J1 connector.

Table 2-1 Rear Panel Connectors

Name Ref. Desig. Type Function

Remote J1 9-pin D Female Configuration and Status

Fault J2 9-pin D Female Relay Faults

IF Output CP1 BNC-F Transmit IF

Prime Power None Standard AC Power Input

GND None #10-32 Stud Chassis Ground

Data Interface Connectors See Appendix A

Table 2-2 Remote Connector Pinout (J1)

Signal Function Name Pin # Type

RS-232 RS-485 (2-Wire) RS-485 (4-Wire)

GND GND GND REM1 1 GND

RXD N/A N/A REM2 2 I

TXD N/A N/A REM3 3 O

27External Connections

Fault Connector (J2)

The fault interface connection is a 9-pin female D connector located on the rear panel of the modulator. Screw locks are provided for mechanical security on the mating connector.

The fault connector provides FORM-C contact closures for fault reporting. The two FORM-C summary fault contacts are Modulator and Common Equipment. To obtain a system summary fault, connect all of the FORM-C contacts in parallel.

Table 2-3 provides the pinout of the J2 connector.

Units with firmware 4.1.4 or later operate as shown in Table 2-3. The last three columns of the table show which pins of the connector have continuity when the status of the TVRM-75 is either OK, Faulted, or Power OFF.

N/A +RX/+TX +TX(O) REM4 4 I/O

GND -RX/-TX -TX(O) REM5 5 I/O

DSR N/A N/A REM6 6 I

RTS N/A N/A REM7 7 O

CTS(I) +RX/+TX +RX(I) REM8 8 I/O

N/A -RX/-TX -RX(I) REM9 9 I/O

Table 2-2 Remote Connector Pinout (J1) (continued)

Table 2-3 Fault Status Relay Connector Pinout (J2)

Signal Function Name Pin # Fault/Alarm OK Power OFF

Common Equipment Fault CE_NO

CE_COMCE_NC

1

23

2-3 1-2 2-3

Modulator Fault MOD_NOMOD_CMOD_NC

456

5-6 4-5 5-6

Chapter 228

INSTALLATION

Transmit IF Output (CP1)

CP1 is a BNC connector for the transmit IF signal output. The output impedance is 75Ω (50Ω optional). The output is a modulated carrier between 50 and 180 MHz.

AC Power The AC power is supplied to the modulator by a standard, detachable, non-locking, 3-prong power cord. This cord connects to a fused, ESC-type power receptacle.

The fuse is a 2A, Slow-blow, metric fuse.

Normal input voltage is 90 to 264 VAC, 47 to 63 Hz. The modulator will automatically switch between ranges.

Typical power consumption is less than 40W. Refer to Chapter 1 for specifications.

Ground (GND)

A #10-32 stud is available on the rear panel for the purpose of connecting a common chassis ground among all of the equipment.

Note: A safety ground is provided through the AC power connector.

Proper Operations for Emissions (CE)

Note: The European EMC Directive (EN55022, EN50082-1) requires using properly shielded cables for DATA I/O. These cables must be double shielded from end-to-end, ensuring a continuous ground shield.

Modulator Alarm ALM_NOALM_COM

ALM_NC

78

9

7-8 8-9 8-9

Table 2-3 Fault Status Relay Connector Pinout (J2) (continued)

Signal Function Name Pin # Fault/Alarm OK Power OFF

29Introduction

Chapter 3 OPERATION

This chapter describes modulator operation from the front panel, and provides an explanation of command functions. For remote control operation information, refer to Appendix B.

Introduction The TVRM75 has three general modes of operation controlled by the DVB Framing Type command in the Configuration Interface menu, described in the section on the Configuration Interface Menu. Refer to Table 3-1 for a description of the three modes.

The different data interfaces with various data formats are all condensed into one of these three formats for operation. Control functions and status readings are accessible through the front panel keypad/LCD display or the rear panel remote port.

Table 3-1 Mode Description

Mode Description

188 The modulator locks to an incoming DVB/MPEG2 frame structure consisting of 1 sync byte (047 hex) and 187 bytes of data. The frame structure is acquired and 16 bytes of Reed-Solomon check bytes are added to create a satellite frame of 204 bytes.

204 The modulator expects an incoming 204-byte frame structure consisting of 1 sync byte (047 hex) plus 187 bytes of data and 16 bytes reserved for check bytes. The modulator acquires the frame structure and fills the Reed-Solomon bytes into the 16 reserved bytes, in a 204-byte satellite frame.

None (187) In this mode there is no incoming frame structure. The modulator creates a frame consisting of one sync byte (047 hex), followed by 187 bytes of data plus 16 Reed-Solomon check bytes. The resulting satellite frame is 204 bytes.

Chapter 330

OPERATION

Front Panel The modulator front panel enables the user to control modulator configuration parameters and display the modulator status.

Figure 3-1 Front Panel

The front panel features include:

32-character, 2-line LCD display

6-button keypad for local control

7 LEDs to provide overall status at a glance

All functions are accessible at the front panel by entering one of four pre-defined Function Select categories:

Configuration

Faults/Alarms

Stored Faults/Alarms

Utility

The seven LEDs on the front panel indicate:

Alarms

Summary fault information

General modulator status

Refer to Table 3-2 for indicator descriptions.


TRANSMITTER ON

POWER ON

SYNC

TEST MODE

TRANSMIT

TRANSMIT STORED

ALARMSFAULTS

ENTER

CLEAR

31Front Panel

At system level, a fault simultaneously activates the modulator fault relay, MF, a TTL-OC fault indication, and turns on the red Transmit Fault LED. This condition is used by redundancy switches to cause a switch-over to replace a failed unit.

An alarm condition turns on the yellow Transmit Alarm LED and activates the Modulator alarm relay. Alarms DO NOT activate the fault indications described above.

Table 3-2 LED Indicator Description

Name LED Description

Alarms

Transmit Yellow A transmit function is in an alarm condition.

Faults

Transmit Red A fault condition exists in the transmit chain.

Stored Yellow A fault has been logged and stored.The fault may or may not be active.

Status

Power On Green Power is applied to the modulator.

Sync Green The modulator is synchronized to the data in the selected framing mode. The LED is continuously lit when the DVB Framing Type is NONE.

Transmitter On Green Transmitter is currently ON. This indicator reflects the actual condition of the transmitter, as opposed to the programmed condition.

Test Mode Yellow Flashes when the modulator is in a test configuration.

Chapter 332

OPERATION

Front Panel Keypad

The front panel keypad permits local operation of the modulator. The keypad consists of six keys. Each key provides one or more logical functions.

Figure 3-2 Keypad

ENTER key — used to select a displayed function or to execute a modem configuration change.

CLEAR key — used to back out of a selection or to cancel a configuration change which has not been executed using [ENTER]. Pressing [CLEAR] generally returns the display to the previous selection.

Left and Right Diamond Keys — used to move to the next selection or to move the cursor for certain functions.

Note: Throughout this chapter, [←] and [→] are used to indicate left and right diamond keys.

Top and Bottom Diamond Keys — used primarily to change configuration data (numbers). At times, they are also used to move from one section to another.

Note: Throughout this chapter, [↑] and [↓] are used to indicate top and bottom diamond keys.

The modulator responds by beeping whenever a key is pressed:

A single beep indicates a valid entry and the appropriate action was taken.

A double beep indicates an invalid entry or a parameter is not available for operation.

ENTER

CLEAR

33Menu System

Menu System To access and execute all functions, refer to Figures 3-3 through 3-13. Use the main menu in Figure 3-3 as a quick reference for accessing the modulator functions.

When prime power is applied to the modulator, the base level of the menu system displays the sign-on message:

Line 1 of the sign-on message is the modulator model number and type

Line 2 is the version number of the firmware

The main level of the menu system is Function Select. To access this base menu level, press either [←] or [→]. From the Function Select menu, use [←] or [→] to select one of the functional categories:

Configuration

Faults/Alarms

Stored Faults/Alarms

Utility

When the desired function is displayed, select that menu by pressing [ENTER]. After entering the appropriate functional menu, press [←] or [→] to move to the desired function. To return to the previous menu or to exit a function, press [CLEAR].

Notes:1. Figures 3-3 through 3-15 list the front panel menu selections.2. Menus that are specific to certain modulator configurations are

only accessible after selecting the appropriate modulator configu-ration. This prevents incompatible parameters from accidentally being selected.

Chapter 334

OPERATION

Main Menu

Figure 3-3 Main Menu

TVR M 75 M O DVE R: 4.1.4

FU N CTIO N SELEC TC O NFIG UR AT IO N

FU N CTIO N SELEC TFAU LTS/ALAR M S

(F igure 3-7)

C O NFIG UR AT IO NM O D U LATO R

(F igure 3-4)

C O NFIG UR AT IO NIN TER FA CE(F igure 3-5)

C O NFIG UR AT IO NSA VE

(F igure 3-6)

FU N CTIO N SELEC TSTO R ED

FLTS/ALM S(F igure 3-8)

FU N CTIO N SELEC TU TILITY

U TILITYM O D U LATO R

(F igure 3-9)

U TILITYIN TER FA CE(F igure 3-10)

U TILITYSY STEM

(F igure 3-11)

U TILITYM O D O P TIO N S

(F igure 3-12)

U TILITYFAC TO R Y S ETU P

(F igure 3-13)

C O NFIG UR AT IO NR EC ALL

(F igure 3-6)

ACCESS TOSUBMENU

CON DITIO NAL O ROPTIO N-DEPEN DENT

Parameter Info rmation

K ey:

35Menu System

ConfigurationMenus

Modulator configuration may be viewed or changed by entering the Configuration level from the Function Select menu on the front panel.

After entering the Configuration menu, press [←] or [→] to select Modulator, Interface, Save, or Recall.

Enter the selected configuration menu by pressing [ENTER].

Press [←] or [→] to view the selected configuration parameters.

To change a configuration parameter, press [ENTER] to begin the change process. Press [↑] or [↓] to make the changes.

After the changes are made and the display represents the correct parameters, execute the changes by pressing [ENTER]. After [ENTER] is pressed, the necessary programming is initiated by the modulator. To undo a parameter change prior to executing it, simply press [CLEAR].

The modulator configuration functions are described in the following paragraphs.

Chapter 336

OPERATION

Configuration Modulator Menu

Figure 3-4 Configuration Modulator Menu

Note: The Scrambler function is related to Energy Dispersal and has no association with conditional access scrambling. To avoid any confusion, Scrambler is referred to as Energy Dispersal on newer versions of the TVRM75.

T VR M 75 M O DV ER : 4.1.4

F U NC T IO N S E LE C TC O N FIG UR A T IO N

C O N FIG UR A T IO NM O D U LAT O R

T X-D R Q P S K 1 /2(D a ta R a te )

S C RA M B LER(re fer to no te )

Q P SK 1 /2 , 3 /4 , 7 /8 , 2 /3 , 5 /68PS K 2 /3, 5 /6, 8 /9

1 b it/s s teps lim ited by codera te and interface

O NO F F

A C C ES S T OS U BM E N U

C O N D IT IO N A L O RO P T IO N -D E P EN D E N T

P a ra m e te r In fo rm a tio n

Key:

P R ES S EN T E R TOT U RN O N TX-IF

T X-S R Q P SK 1 /2(S ym bo l rate)

Q P SK 1 /2 , 3 /4 , 7 /8 , 2 /3 , 5 /68PS K 2 /3, 5 /6, 8 /9

1 b it/s s teps lim ited by code rate and in te rface

T X-IF F R E Q UE N C Y

50 to 180 M H z(in 2.5 kH z s teps)


T X-IF O U T P UT

O N , O F F, M O R E

T X-IF O U T P UT = O N O N O F F

T X P O W E R LE V EL

+5.0 to -20 .0 dBm

C A RR IER M O D E

N O R M A L-M O D U LA T EDD U AL-C W

O F FS E T-C WC E NT E R -C W



37Menu System

Configuration Modulator Menu (refer to Figure 3-4)

TX-DR QPSK 1/2 Programs the modulator data rate (DR) from 1.5 to 100 Mbit/s, in 1 bit/s steps, limited by code rate and data interface. On entry, the current data rate is displayed with the flashing cursor on the first character. Press [←] or [→] to move the flashing cursor. Press [↑] or [↓] to increment or decrement the digit at the flashing cursor. Press [ENTER] to execute the change.Notes :1. When [ENTER] is pressed to change the data rate, the transmitter is automat-

ically turned off to prevent the possible swamping of other channels. Another menu is displayed that allows the operator to turn the transmitter on again, simply by pressing [ENTER].

2. Programming is done by either data rate or symbol rate. Data rate refers to the equivalent serial data rate at the data interface connector.

3. Symbol rate refers to the modulation rate after framing, trellis (Viterbi) coding, and Reed-Solomon coding are applied.

4. The framing type (see Section 3.2.5.2) selection affects the symbol rate (if pro-gramming from the data rate [TX-DR] menu), or the data rate (if programming from the symbol rate [TX-SR] menu). If data rate is programmed, the symbol rate menu is updated to reflect the code rate and framing selections. If symbol rate is programmed, the data rate display is similarly updated.

TX-SR QPSK 1/2 Programs the modulator symbol rate (SR) from 1 to 37.5, in 1 sym/s steps, limited by code rate and data interface.On entry, the current symbol rate is displayed with the flashing cursor on the first character. Press [←] or [→] to move the flashing cursor. Press [↑] or [↓] to increment or decrement the digit at the flashing cursor. Press [ENTER] to execute the change.Notes : 1. When [ENTER] is pressed to change the symbol rate, the transmitter is auto-

matically turned off to prevent the possible swamping of other channels. Another menu is displayed that allows the operator to turn the transmitter on again, simply by pressing [ENTER].

2. Programming is done by either data rate or symbol rate. Data rate refers to the equivalent serial data rate at the data interface connector.

3. Symbol rate refers to the modulation rate after framing, trellis (Viterbi) coding, and Reed-Solomon coding are applied.

4. The framing type (see Section 3.2.5.2) selection affects the symbol rate (if pro-gramming from the data rate [TX-DR] menu), or the data rate (if programming from the symbol rate [TX-SR] menu). If data rate is programmed, the symbol rate menu is updated to reflect the code rate and framing selections. If symbol rate is programmed, the data rate display is similarly updated.

Chapter 338

OPERATION

TX-IF Frequency Programs the modulator transmit frequency between 50 and 180 MHz, in 2.5 kHz steps.On entry, the current transmitter frequency is displayed with the flashing cursor on the first character. Press [←] or [→] to move the flashing cursor. Press [↑] or [↓] to increment or decrement the digit at the flashing cursor. Press [ENTER] to execute the change.Note: When [ENTER] is pressed to change the transmitter frequency, the transmitter is automatically turned off to prevent the possible swamping of other channels. Another menu is displayed that allows the operator to turn the transmitter on, simply by pressing [ENTER] again.

TX-IF Output Programs the modulator output to ON, OFF, or MORE.On entry, the current status of the output is displayed. Press [↑] or [↓] to select ON or OFF. Press [ENTER] to execute the change.Note: Pressing [ENTER] when MORE is displayed displays the menu for toggling TX-IF ON and OFF. In this mode, the carrier is turned ON [↑] or OFF [↓] without having to press [ENTER].

TX Power Level Programs the modulator output power level from +5 to -20 dBm, in 0.1 dBm steps.

On entry, the current transmitter power level is displayed with the flashing cursor on the first character. Press [↑] or [↓] to increase or decrease the output power level in 0.1 dB steps. Press [ENTER] to execute the change.

Scrambler Programs the scrambler ON or OFF.

On entry, the current status of the DVB Scrambler is displayed. Press [↑] or [↓] to select ON or OFF. Press [ENTER] to execute the change.Note : The Scrambler function is related to Energy Dispersal and has no association with conditional access scrambling. To avoid any confusion, Scrambler is referred to as Energy Dispersal on newer versions of the TVRM75.


39Menu System

Carrier Mode Programs the modulator for continuous wave mode. Four modes of operation are available: NORMAL-MODULATED, DUAL-CW, OFFSET-CW, and CENTER-CW modes. To change modes, enter the Carrier Mode Menu and select the desired mode.• NORMAL-MODULATED: Normal modulated data. The Carrier Mode is in the

OFF position for data modulation.• DUAL-CW Mode: A test mode that generates a dual side-band suppressed

carrier signal. Side-bands are one-half the symbol rate from the carrier. This is used to check the channel balance and carrier null.

• OFFSET-CW Mode: A test mode that generates a single upper side-band suppressed carrier signal. The upper side-band is one-quarter the symbol rate from the carrier. This is used to check the quadrature.

• CENTER-CW Mode: A test mode that generates a carrier at the current modulator frequency. This can be used to measure the output frequency.

Note: Selecting any mode other than NORMAL-MODULATED turns on the TX-IF Output. When NORMAL-MODULATED is selected, TX-IF Output is turned off. Press [ENTER] again to turn on TX-IF Output.


Chapter 340

OPERATION

Configuration Interface Menu

Figure 3-5 Configuration Interface Menu

T VR M 75 M O DV ER : 4 .1.4

F U N C TIO N SE LEC TC O N F IG U R AT IO N

C O N F IG U R AT IO NIN T E R FA C E

T X C LO C K PH A S E T X D A T A P H A SE 2047 P AT T E R N

T X D A T A F A U LT D V B FR A M IN G T Y P E

N O R M A LIN V E R T

N O R M A LIN V E R T

O F FO N

N O N EA IS

D A TA S T AB LE

188204

N O N E

N ote : P ress ing En te r in th ism enu tu rns o ff T X-IFO U T PU T .


C O N D IT IO N A L O RO P T IO N -D E P E N D EN T

P a ra m e te r In fo rm a tio n

Key: P R ES S E N TE R T OT U R N O N T X-IF

T X C LK AC T IV IT Y

A LA R MF AU LT

T X S Y N C SE LE CT

E XT S YN CC O R R O N D A TA U TO DE T E C T

In te rface Loopback

O NO F F

(A S I Interface M ode O nly)

41Menu System

Configuration Interface Menu (refer to Figure 3-5)

TX Clock Phase Programs Transmit Clock phase to NORMAL or INVERT.

On entry, the current setting for the TX Clock Phase is displayed. Press [↑] or [↓] to select NORMAL or INVERT. Press [ENTER] to execute the change.

TX Data Phase Programs Transmit Data phase to NORMAL or INVERT.On entry, the current setting for the TX Data Phase is displayed. Press [↑] or [↓] to select NORMAL or INVERT. Press [ENTER] to execute the change.

2047 Pattern Programs the transmitter to ON or OFF to insert a 2047 pattern instead of the normal transmit data.Upon entry, the current status is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

TX Sync Select Programs the transmitter to use one of the following methods of synchronization:• EXT SYNC (sync pulse) (See Note)

• CORR ON DAT (data sync byte) (See Note)• AUTO DETECT (automatic detection)Note: Available only on interfaces with an external SYNC signal.

Upon entry, the current TX Sync Select is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

TX Data Fault Transmit data fault. Press a directional key to select one of the following modes:• NONE: The transmit interface alarm DATA/AIS is not activated.

• Alarm Indication Signal (AIS): Sets transmit interface alarm DATA/AIS to monitor an alarm condition of all 1s from customer data input to the modulator.

• DATA STABLE: Sets transmit interface fault DATA/AIS to monitor an alarm condition of all 1s or 0s. This is referred to as a data-stable condition, which means that the data is not transitioning.

Upon entry, the current TX Data Fault that is being monitored is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

Note: Detection of these conditions produces an alarm indication, not a fault.

Chapter 342

OPERATION

TX CLK Activity Sets the response of the modulator when either a loss of clock activity or a clock out of tolerance condition is detected. The response generates either an alarm or fault based on the selection below:• Alarm

• FaultUpon entry, the new response is indicated. Press [ENTER] to execute the change.

The alarm condition is indicated for the Alarm selection. When Fault is selected, an indication is produced that causes redundancy switch-over.

DVB Framing Type Programs the DVB framing type for 188, 204, or NONE.The framing type describes the format of the data into the modulator. The equivalent serial data rate at the data interface connector is based upon the clock rate of the incoming data stream. Refer to Section 3.1 for information on the different framing types.

Upon entry, the current status of the DVB framing type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

Note: When [ENTER] is pressed to change the framing type, the transmitter is automatically turned off to prevent the possible swamping of other channels. Another menu is displayed that allows the operator to turn the transmitter on again, by pressing [ENTER].

Interface Loopback Displays the Interface Loopback selection of either ON or OFF.Upon entry, the current status of the mode type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

In the On mode, the Test Mode LED illuminates yellow.Note : This option available only with VER 5.3.1 and later.

TX Coding Format Displays the TX coding format for either AMI, B8ZS, HDB3 or B3ZS.Upon entry, the current status of the mode type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

Configuration Interface Menu (refer to Figure 3-5)

43Menu System

Configuration Save and Recall Menus

Figure 3-6 Configuration Save and Recall Menus

Configuration Save Menu Refer to Figure 3-6.The Configuration Save menu allows you to program configuration parameters into memory on the M&C. There are 10 memory locations that may be used to store frequently used configuration setups. After changing the configuration parameters to the desired settings, enter the Configuration Save menu, select memory location 1 through 10 by pressing [↑] or [↓], and press [ENTER] to execute the save.

Configuration Recall Menu Refer to Figure 3-6.The Configuration Recall menu allows the user to recall a previously saved configuration setup. Upon entry, select memory location 1 through 10 by pressing [↑] or [↓]. Press [ENTER] to execute the recall.

TVRM 75 M ODVER : 4.1.4

FUNCTION SELECTCON FIGU RATION

CON FIGU RATIONSAVE M EN U

CON FIGU RATION xxSAVE

xx = 1 to 10

TVRM 75 M ODVER : 4.1.4

FUNCTION SELECTCON FIGU RATION

CON FIGU RATIONRECALL MENU

CON FIGU RATION xxRECALL

xx = 1 to 10A C C E S S T OS U B M E N U

C O N D IT IO N A L O RO P T IO N -D E P E N D E N T P aram ete r In fo rm a tion

K ey:

Chapter 344

OPERATION

Faults/Alarms Menus

The Faults/Alarms level is accessible from the Function Select menu. These are similar to monitor functions, as the current status is displayed.

Press [←] or [→] to move between the Fault/Alarm groups:

Modulator faults

Transmit Interface faults

Common Equipment faults

The current Faults/Alarms status is displayed on line 2 of the display in real time.

Fault status is displayed as a “+” (plus) or “-” (minus) for each parameter monitored:

“-” indicates that no fault or alarm exists.

“+” indicates that a fault exists, and will cause switching in a redundant system.

A reversed-contrast “+” sign appearing on the display indicates an alarm is active.

Note: Alarms do not cause switching to occur.

To display labels for individual faults or alarms, press [ENTER]. Press [←] or [→] to move the flashing cursor to the fault or alarm to be identified. The label for that fault/alarm is immediately displayed on line 1 of the display. To exit this level of operation and return to the previous level, press [CLEAR].

The following paragraphs list the faults and alarms monitored and displayed in each group.

45Faults/Alarms Menus

Faults/Alarms Menu

Figure 3-7 Faults/Alarms Menu

TV RM 75 M O DV ER: 4.1.4

FUNC TIO N S ELECTFA ULTS /ALARM S

M O DULA TOR TX INTE RFA CE CO M M ON

IF S Y NTHE SIZERDA TA CLOC K S YN

I C HAN NELQ C HAN NELA G C LEV EL

M O DULEIF M O DULE

CO NFIG URA TIO N

FRA M E S Y NCDA TA S TAB LE /A IS

CLO C K PLLCLO C K AC TIV ITY

FIFOINTE RFACE M O DULE

DA TA FO RM A T

B ATTE RY /CLO CK-12 V O LT SUP P LY+12 V O LT SUP PLY+5 VO LT S UPP LY

CO NTRO LLE R

Notes:

1. A “-” indicates that no fault or a larm exists.

2. A “+” indicates that a faultexists, and will cause switchingin a redundant system .

3. A reversed contrast “+”indicates an active alarm .

A C C E S S T OS U B M E N U

C O N D IT IO N A L O RO P T IO N -D E P E N D E N T

P a ram e te r In fo rm a tion

Key:

Chapter 346

OPERATION

Faults Menu (refer to Figure 3-7)

Fault/Alarm Possible Problem and Action

Modulator Faults Menu

IF Synthesizer Modulator IF synthesizer is faulted.This is considered a major alarm and will turn off the modulator output. Return the modulator for repair.

Data Clock Syn Transmit data clock synthesizer fault.

This fault is an indication that the internal clock VCO has not locked to the incoming data clock, or the internal clock synthesizer has not locked to the internal reference. This is considered a major alarm and will turn off the modulator output.Check to see that the proper data rate has been set up and selected. Verify that the incoming data rate matches what has been selected in the modulator. Verify the frequency of the input data clock to be within the lock range of 100 PPM. If the inputs to the modulator are all correct and the problem still exists, replace the modulator and return it for repair.

I Channel Activity alarm for the I channel digital filter.This alarm is considered a major alarm, and will turn off the modulator IF output.

An alarm in this position indicates either a fault in the scrambler, or if the scrambler is disabled, it indicates a loss of incoming data. If the fault is active with the scrambler turned off, check to see that there is input data at the DATA I/O connector. If data is present, the problem could be in the interface section. If the fault is active with the scrambler turned on, the problem could be in the modulator section. Return the modulator for repair.

Q Channel Activity alarm for the Q channel digital filter.

Follow the same procedure as for the I channel.

AGC Level Output power automatic gain control level fault. Indicates that the level at the modulator output is not the level that is programmed.Replace the modulator and return it for repair.


Module Modulator module fault. Typically indicates the modulator will not program.

This could indicate a problem in the interface between the modulator and M&C due to modulator firmware being installed incorrectly, or a pin not making contact. Verify the modulator firmware is correctly installed. If the problem still exists, return the modulator for repair.

IF Module IF module fault. Typically indicates the IF module is not responding.

Configuration Modulator configuration fault. Indicates the modulator cannot execute a programmed configuration parameter.

Transmit Interface Faults Menu

Frame Sync Indicates that the modulator cannot synchronize to the data in the selected framing mode.

Data Stable/AIS

Data or AIS. When data fault is selected in the Interface Configuration menu, the fault indicates a data stable condition. This indicates the data is all 1s or 0s (i.e., data is not transitioning). When AIS is selected, the alarm indicates the data is all 1s from customer data input to the modem. When None is selected in the Configuration Interface menu, the TX Data/AIS Fault/Alarm is not activated.Note: AIS is an alarm, not a switching fault.

Clock PLL Transmitter phase-locked loop fault. Indicates the transmitter Phase-Locked Loop (PLL) is not locked.

Clock Activity Activity detector alarm of the selected interface transmit clock. The interface will fall back to the internal clock when this alarm is active.Note: Refer to the Configuration Interface menu (Figure 3-5), TX CLK ACTIVITY. This menu permits selection of a fault or an alarm indication for clock activity.

FIFO This fault indicates a data under-run/over-run condition.

Interface Module

Interface module fault. Indicates a problem in programming the interface.

This could indicate a problem in the M&C, or in the interface between the interface section and M&C. Return the modulator for repair.

Data Format This fault indicates a fault with the formatted data.


Chapter 348

OPERATION

Common Equipment Faults Menu

Battery/Clock M&C battery voltage or clock fault. Indicates a low voltage in the memory battery.

Typically will be active when a modulator has been Hard Reset, or the firmware has been changed. When a Hard Reset has been executed or the firmware has been changed, this fault will typically be active when the modulator is first turned on. It should clear automatically as the battery charges up.

-12 Volt Supply -12V power supply fault. Indicates a high or low voltage condition. Level is ± 5%.Check for a short on the -12V line from the power supply or on the board. Check TP2 on the M&C section to verify the proper -12V monitor voltage (1.06V). If this voltage is not correct, it will verify that the -12V supply is not at the proper level. This would indicate the power supply is faulted. Return modulator for repair.

+12 Volt Supply +12V power supply fault.

Use the same procedure as with -12V fault. To verify the +12V power supply voltage, check TP4 on the M&C. A voltage of 3.81V will be monitored when the +12V is at the proper level.

+5 Volt Supply +5V power supply fault.Use the same procedure as with -12V fault. To verify the +5V power supply voltage, check TP5 on the M&C section. A voltage of 2.5V will be monitored when the +5V is at the proper level.

Controller Controller fault. Indicates loss of power in the M&C card.Typically indicates the controller has gone through a power on-off cycle.



Stored Faults/Alarms Menu

Figure 3-8 Stored Faults/Alarms Menu

Stored Faults/Alarms Menus Refer to Figure 3-8.

The modulator stores the first 10 (Flt0 through Flt9) occurrences of fault status changes in each of the three major fault categories. Each fault status change is stored with the time and date of the occurrence. Stored faults may be viewed by entering the Stored Faults level from the Function Select menu.

All stored faults may be cleared by executing the CLEAR Stored Faults? command from the Stored Faults level.

TV RM 75 M O DV E R: 4 .1.4

FUN CTIO N S E LE C TS TO R E D

FLTS /A LM S

M O D ULA TO R x TX INTE R FA CE x CO M M O N x CLE A R ??

S TO R E D T IM E /D A TEHH :M M :S S /M M -DD-Y Y

(FA ULT LA B E L)IF S Y NTHE S IZE R

DA TA C LO CK S Y NI CHA N NE L

Q C HA NN E LA G C LE V E L

M O D ULEIF M O DU LE

CO NFIG U RA TIO N


(FA ULT LA B E L)FRA M E S Y N C

DA TA S TA B LE /A ISCLO CK P LL

CLO CK A CTIV ITYF IFO

INTE R FA CE M O DU LE


(FA ULT LA B E L)B A TTE RY /C LO CK-12 V O LT S UP P LY+12 V O LT S UP P LY+5 V O LT S U P P LY

CO NTR O LLE R

S TO R E D FA ULTS

N otes:

1. x = 0 to 9 .

2 . Stored tim e/date w illa lternate. HH :M M :SS,M M -D D -YY,or NO FAU LT.


C O N D IT IO N A L O RO P T IO N -D E PE N D E N T

P aramete r In fo rma tion

Key:

CLE A R ??Y E S

Chapter 350

OPERATION

Stored faults are not maintained through a controller power-on reset cycle. However, the last known time is maintained in non-volatile RAM, and upon power-down, a common equipment fault is logged (Flt0) with that time and date. On power-up, an additional common equipment fault is also logged (Flt1) to indicate the power-up time and date. On power-up, the power-down and power-up times are logged as common equipment fault 0 and common equipment fault 1.

Upon entering the Stored Faults level, press [←] or [→] to move between the fault groups and the CLEAR Stored Faults?? selections. The time and date of the first stored fault status (Flt0) for the selected group will be displayed alternately on line 2 of the display.

Press [↑] or [↓] to cycle through the selected group’s stored fault status (Flt0 through Flt9). To display the fault status associated with the displayed time and date, press [ENTER]. At this time, press [←] or [→] to move the flashing cursor to the fault to be identified.

To clear the stored faults currently logged, simply press [ENTER] when the CLEAR Stored Faults/YES?? selection is displayed, press [ENTER] again to clear.

Note: Faults are stored in time sequence, with the oldest fault status change stored in Flt0, and the most recent in Flt9. Only the first 10 fault status changes are stored, additional faults are ignored until the log is cleared. All stored faults which have not been used indicate No Fault on the display.


Utility Menus The utility functions are divided into four user categories, and provide access to the following Utility menus:

Modulator

Ιnterface

System

Mod Options

These menus provide a means to:

Set the time and date of the modulator real time clock.

Test the front panel optical indicators.

Choose filtering types, code rates, decoder types, TX fault enables, modulator type, and overhead type.

After entering the Utility functions level, press [←] or [→] to select the Utility menu desired, and press [ENTER]. Press [←] or [→] to select the utility function of interest.

Notes:

1. The Utility Factory Setup menu is for Tiernan service personnel only. Unauthorized access may cause the modulator to operate incorrectly.

2. Changes in the Utility menu may cause changes in other front panel menus.

Chapter 352

OPERATION

Utilit y Modulator Menu

Figure 3-9 Utility Modulator Menu

TV RM 75 M O DVE R: 4.1 .4

FU NC TIO N SE LEC TUT ILIT Y

UT ILIT YM O D ULA TO R

PO W E R U P TX-IFM O D PO W ERO F FSE T

LA ST KN O W NO F F

-40.0 to +40.0 dB - USE R power o ffsetin 0 .1 dB steps.

Anything except 0.0 dB will cause “AD J”to be d isplayed in the

TX PO W ER LEVE L screen.

AC C ESS T OSU BM EN U

C O N D IT IO N AL O RO PT IO N -D EP EN D E N T

Pa ram e te r In fo rm ation

K ey:

M O D ULA TO R TYP E

D V B -1D V B -2

Note: P ress ing E nterin th is m enu tu rns offTX-IF O U TPU T.

M O D SPEC TR UM

NO RM ALIN VER T

PR ESS ENT ER T OTU RN O N TX-IF


Utility Modulator Menu (refer to Figure 3-9)

Mod Spectrum Programmable Vector Rotation.

Allows the operator to select NORMAL or INVERT for spectrum reversal of the I and Q baseband channels.

Mod Power Offset Modulator Power Adjust Offset.Allows the operator to offset the modulator output power readout in the Configuration menu. This feature does not actually change the modulator power level. The function is to change the actual reading to display an offset value in the monitor. The modulator Power Offset can be set from 0 to ± 40.0 dB, in 0.1 dB increments. Anything except 0.0 dB causes (ADJ) to be displayed in the TX Power Level screen.

Power Up TX-IF Selects the state in which the TX-IF Output will be at power up. Selections include OFF and LAST KNOWN (last known state).Upon entry, the current status of the TX-IF Output power up state is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

Modulator Type Programs selection of spectral mask type:

• DVB-1: This is the default mask and is the “best fit” to the ETS 300 421 mask.

• DVB-2: This mask has a sharper cutoff in the transition region from 3 to 40 dB resulting in a narrower spectrum, than DVB-1, at the 35 dB down region.

Allows the operator to select DVB-1 or DVB-2.

Chapter 354

OPERATION

Utilit y Interface Menu

Figure 3-10 Utility Interface Menu

.

TVRM 75 M O DVER: 4.1.4

FUNCTIO N SELECTUTILITY

UTILITYINTERFACE

INTERFACE TYPE


C O N D IT IO N AL O RO PT IO N -D EPEN D EN T

Param ete r In fo rm ation

Key:RS-422A IS /RS-422UNKNO W N

See Appendix A for m enusspecific to the available

interface m odules.

Utility Interface Menu (refer to Figure 3-10)

Interface Type Displays the interface type installed in the modulator (for example, RS-422 or UNKNOWN). This is a status window only, and no changes can be made from this menu.

Refer to Appendix A for information about the front panel menus for specific interface types.Note: As additional data interfaces are introduced, they are added to the menu. If an interface is not recognized, then UNKNOWN is displayed. In this case, a later version of firmware may be required to operate with the data interface.


Utilit y Interface Menu, RS-422

Figure 3-11 Utility Interface Menu, RS422

TVRM75 MOD

VER: 4.1.4FUNCTION SELECT

UTILITYUTILITY

INTERFACE

INTERFACE TYPE

ACCESS TOSUBMENU

CONDITIONAL OROPTION-DEPENDENT

Parameter Information

Key:

RS422 INTF SELECT

DVB (J3)530 (J4)

RTS TX-IF CNTRL

ONOFF

RS422

RTS STATE

NORMALINVERT

CTS STATESTATE

NORMAL INVERT

DM STATE

NORMAL

INTERFACE MODESELECT

SERIALPARALLEL

Chapter 356

OPERATION

Utility Interface Menu, RS-422 (refer to Figure 3-11)

INTERFACE TYPE Displays RS422 or UNKNOWN. This is a status window only, and no changes can be made from this menu.Note : As additional data interfaces are introduced, they are added to the menu. If an interface is not recognized, then UNKNOWN is displayed. In this case, a later version of firmware may be required to operate with the data interface.

RS422 INT SELECT

Displays the interface type DVB(J3) or 530 (J4).Upon entry, the current status of the DVB type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

INTF MODE SELECT

Displays the mode type SERIAL or PARALLEL.

Upon entry, the current status of the mode type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

RTS TX-IF CNTRL Displays the status of RTS either ON or OFF type.Upon entry, the current status of RTS is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change

RTS STATE Displays the status of RTS STATE either NORMAL or INVERT type.

Upon entry, the current status of RTS is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change

CTS STATE Displays the status of CTS STATE either NORMAL or INVERT type.Upon entry, the current status of CTS is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change

DM STATE Displays the status of DM STATE either NORMAL or INVERT type.Upon entry, the current status of DM is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change


Utilit y Interface Menu, ASI/RS-422

Figure 3-12 Utility Interface Menu, ASI/RS-422

INTERFACE TYPE

ASI/RS422

ACCESS TOSUBMENU CONDITIONAL OR

OPTION-DEPENDENTParameter Information

Key:

INTERFACE SELECT

ASIRS422

TX INTERFACEFIRMWARE

Press <ENTER> to showcurrent FW release date

ASI LINK SELECT

A-Link (J4)B-Link (J3)

(ASI Interface Mode only)

MM/DD/YYYYPress <CLEAR> to exit date

menu.

ONOFF


INTERFACE LOOPTHRU RTS TX-IF CNTRL

ONOFF

(RS422 Interface only)

RTS STATE

NORMALINVERT


CTS STATE

NORMALINVERT


TVRM75 MODVER: 4.1.4

FUNCTION SELECTUTILITY

UTILITYINTERFACE

DM STATE

NORMALINVERT


ST STATE

NORMALINVERT


Chapter 358

OPERATION

Utility Interface Menu, ASI/RS-422 (refer to Figure 3-12)

INTERFACE TYPE Displays ASI/RS422 or UNKNOWN. This is a status window only, and no changes can be made from this menu.

INTERFACE SELECT Displays the mode type ASI or RS422 interface.Upon entry, the current status of the mode type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

TX INTF FIRMWARE Press [ENTER] will show the FW Release date.

ASI LINK SELECT(ASI Mode Only)

Displays the A-LINK (J4) or B-LINK (J3).Upon entry, the current status of the mode type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

INTERFACE LOOP THRU(ASI Mode Only)

Displays the Interface Loop thru selection of either ON or OFF.

Upon entry, the current status of the mode type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.When On is selected, input data is looped to the output of the terrestrial interface; data also continues into the modulator. This mode is identical to the Interface Loopback function found on the Configuration Interface menu, except that the front panel yellow Test Mode LED is not illuminated.Note : This option available only with VER 5.3.1 and later.

RTS TX-IF CNTRL(RS422 Mode Only)

Displays the RTS selection of either ON or OFF.Upon entry, the current status of the mode type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

RTS STATE

(RS422 Mode Only)Displays the RTS selection of either NORMAL or INVERT.


CTS STATE(RS422 Mode Only)

Displays the CTS selection of either NORMAL or INVERT.Upon entry, the current status of the mode type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

DM STATE(RS422 Mode Only)

Displays the DM selection of either NORMAL or INVERT.Upon entry, the current status of the mode type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

ST STATE

(RS422 Mode Only)Displays the ST selection of either NORMAL or INVERT.



Utilit y System Menu

Figure 3-13 Utility System Menu



UTILITYSYSTEM

TIME: HH:MM:SS AM/PMDATE: MM/DD/YY

REMOTE BAUD RATE X PARITY

REMOTE ADDRESS

YEAR DISPLAY

Current time and date. X =300 4800600 9600

1200 192002400X = bit/s

Parity: EVEN, ODD, orNONE

1 to 255

2- DIGIT4-DIGIT

LAMP TEST ??

Press [ENTER] to turn Onall the front indicators for 3

seconds.

ACCESS TOSUBMENU



Key:

DISPLAY CONTRAST

0 to 100

TEST MODE STATUS

RF OUTPUTCARRIER MODE

MOD FAULTSINTF FAULTS

2047 PATTERNIMPULSE TEST

INTF LOOPBACK

REMOTE TYPE

RS485 (4-WIRE)RS485 (2-WIRE)

RS232

M&C FIRMWAREFW/NNNN-DRR

Press [ENTER] to show the FW release date.

BOOT FIRMWAREFW/NNNN-DRR

ENCODER FIRMWAREFW/NNNN-DRR

R/S FIRMWAREFW/NNNN-DRR

MM/DD/YYYYPress [CLEAR] to exit the FW release date.



ALARM RELAY

NORMALINVERT


MASTER RESET

HARDSOFT

Chapter 360

OPERATION

Utility System Menu (refer to Figure 3-13)

Time/Date Time of day and date set/display function.The current time and date in the modulator memory are displayed when selected. To set the modulator time and/or date, press [ENTER]. Press [←] or [→] to position the flashing cursor over the parameter to be changed. Press [↑] or [↓] to change the parameter to the desired value. Once the parameters are displayed as desired, press [ENTER] to set the time and date.

Remote Baud Rate/Parity

The current baud rate and parity selection of the modulator are displayed.To set the modulator baud rate and/or parity, press [ENTER]. Press [←] or [→] to position the flashing cursor over the parameter to be changed. Press [↑] or [↓] to change the parameter to the desired value. Once the parameters are displayed as desired, press [ENTER] to set the baud rate and parity. The baud rate can be set from 300 to 19200. The parity can be set to EVEN, ODD, or NONE.

Remote Address The current modulator address is displayed (1 to 255).

To set the remote address, press [ENTER]. Press [↑] or [↓] to change the parameter to the desired value. Press [ENTER] to execute the change.Note: Address 0 is reserved as a global address.

Remote Type Remote interface type selection, choices include:

• RS-485 (4-wire)• RS-485 (2-wire) • RS-232

Press an arrow key to make the selection. Press [ENTER] to execute the change.

Year Display Displays the year in either 2-digits or 4-digits.Press an arrow key to make the selection. Press [ENTER] to execute the change.


Test Mode Status Test mode status indicator. The following modulator test points are listed in this window and will display a “+” when a test mode is active:

• RF OUTPUT• CARRIER MODE• MOD FAULTS

• INTF FAULTS• 2047 PATTERN• IMPULSE TEST

• INTERFACE LOOPBACKTo view the test modes, press [ENTER]. Press [←] or [→] to move through the list of test modes.

Lamp Test ?? Lamp test function to verify the front panel indicators.Press [ENTER] to turn on all of the front panel indicators for three seconds.

Display Contrast Set the contrast level of the front panel display. Default: Level 64.

Press [ENTER] in order to change the contrast of the front panel display. Press [↑] or [↓] to increment or decrement the number at the flashing cursor from 0 to 100. Press [ENTER] to execute the change.

M&C FIRMWARE Displays M&C module firmware version.

Note: Pressing [CLEAR] will exit from this menu.Upon entry, the date of release of this firmware will be displayed. This is a status window only.

BOOT FIRMWARE

Displays the Boot module firmware version. The display includes the month, day, and year.

ENCODER FIRMWARE

Displays Encoder firmware version.Note: Pressing [CLEAR] will exit from this menu.

Upon entry, the date of release of this firmware will be displayed. This is a status window only.

R/S FIRMWARE Displays R/S module firmware version.Note: Pressing [CLEAR] will exit from this menu.Upon entry, the date of release of this firmware will be displayed. This is a status window only.

Utility System Menu (refer to Figure 3-13) (continued)

Chapter 362

OPERATION

MASTER RESET Master reset function.

When a hard reset is initiated, the modulator hardware is reset, and all default configuration settings will be installed. When a soft reset is initialized, the modulator hardware will be reset, but the initial firmware configuration settings will be saved.Press [ENTER] once to access Soft. Press [↑] or [↓] to alternate between Hard and Soft until the desired type is visible. Press [ENTER]. If Soft has been selected, press [ENTER] again to reset the modulator. If Hard is selected, press [→] until the cursor is on YES, and press [ENTER].

ALARM RELAY Displays Alarm selection at NORMAL or INVERT>Upon entry, the date of release of this firmware will be displayed. This is a status window only.

Utility System Menu (refer to Figure 3-13) (continued)

CAUTION


Defaults after Firmware Upgrade or Hard Reset

Table 3-3 Modulator Default Settings

Modulator Initial SettingsData Rate 15,000,000 bit/sSymbol Rate 16,276,596 sym/s

Modulation/Code Rate QPSK 1/2Transmit Output Frequency 70 MHzTX-IF Output Off

TX Power Level -10.0 dBmScrambler OnCarrier Mode Normal-Modulated

Clock Phase NormalData Phase Normal2047 Pattern Off

TX Sync Select Auto DetectData Fault NoneTX Clk Activity Alarm

DVB Framing Type 188Mod Power Offset 0.0 dBSpectral Sense Normal

Power Up TX-IF Last KnownTime and Date 12:00 7/4/76Rev Emulation 1

Mod Faults Enable OnInterface Faults Enable OnModulator Type DVB-1

Settings Stored in EEPROMDisplay Contrast Setting 64Communications Type RS-485 (4-wire)

Baud Rate 9600Parity EvenAddress 1Note: See Appendix C for instructions on restoring the factory default configuration after a firmware upgrade or a hard reset.

206000658

Sticky Note

63 is the page

Chapter 364

OPERATION

Utilit y Mod Options Menu

Figure 3-14 Utility Mod Options Menu

TV RM 75 M O DV E R: 4 .1 .4

FUN CTIO N S E LE C TUTILITY

UTIL ITYM O D O P TIO N S

RE V E M U LA TIO N M O D O P TIO N S M O D S E RIA L #CO NFIG URA TIO N

CO DE - M O D

FUN CTIO N A L xCU RR E NT V E RS IO N

x = 1 to x

(S ta tus O nly)

16Q A M (- or +)8P S K (- o r +)O E M LCD (- or +)

- = Not Insta lled ; + = Ins ta lled

(S ta tus O nly)(T iernan P roduct S upport

Use O nly)

1) A A A A A A A A A A2) A A A A A A A A A A


C O N D IT IO N A L O RO P T IO N -D E PE N D E N T

P aramete r In fo rma tion

Key:


Utility Mod Options Menu (refer to Figure 3-14)

Rev Emulation Programs an emulation mode of a previous functional revision.

Revision emulation allows the user interfaces (either front panel or remote) to emulate a previous version of software.Upon entry, the CURRENT VERSION is displayed. Press a directional key to select the FUNCTIONAL versions. Press [ENTER] to execute the change.Note: The Utility menu numbers increase with each software version change.

MOD Options Status Only

Displays the following modulator options:• 16QAM• 8PSK

• OEM LCDIf the option is not installed, the “-“ (minus) symbol is displayed to the right of the option. If the option is installed, the “+“ (plus) symbol is displayed to the right of the optionNote: 16QAM and ISQ are future options.

MOD Serial# Status OnlyDisplays the modulator serial number.

Configuration Code–MOD

Tiernan Product Support Use Only

Chapter 366

OPERATION

Utilit y Factory Setup Menu

Figure 3-15 Utility Factory Setup Menu

TVRM 75 M O DVER: 4.1.4

FUNCTIO N SELECTUTILITY

UTILITYFACTO RY SET-UP


C O N D IT IO N AL O RO PT IO N -D EPEN D EN T

Param ete r In fo rm ation

Key:

This configuration is used for factory alignment and filter setup parameters. To avoid modulator failure, Factory Setup should not be changed by unauthorized personnel.

CAUTION

67Description

Appendix A DATA INTERFACES

This chapter describes the plug-in data interface modules used with the TVRM75.

Description The data interface is a plug-in module that provides a specific terrestrial connection to the modulator unit. Where practicable, both the transmit (modulator) and receive (demodulator) paths are incorporated into the data interface.

Each data interface has its own specification. Some general requirements are described in the main body of the specification. The requirements for each interface includes:

Reference to any other interface specification, such as: G.703, RS-422.

Voltage levels (where applicable) for clarity, or when not covered adequately by the referenced standard.

Signal/timing characteristics under special conditions.

Timing, if not covered by the applicable specification, or if special.

Pinout and signal description for all connectors.

Description of each connector.

Limitations: data rate range.

Where needed, any other application information.

Different interfaces are described in the following sections of this appendix. As additional interfaces are developed, the appendix will be revised to include the new interfaces. Contact Tiernan Customer Support for the latest offering.

Appendix A68

DATA INTERFACES

SoftwareRequirement

As additional data interfaces are introduced, the software is revised to support the operation of each interface. Table A-1 summarizes the minimum software version necessary to operate each interface type.

RS-422 Parallel/Serial Interface

The following paragraphs describe the RS-422 parallel and serial interface. The interface operates at RS-422 signal levels. It accommodates a variety of MPEG2 framing formats and EIA-530 serial data.

Applicable specifications referenced within this manual include:

TM1449 — Interfaces for CATV/SMATV Headends and Similar Professional Equipment

TIA/EIA-644 — Telecommunications Industry Standard, Electrical Characteristics Of Low Voltage Differential Signaling (LVDS) Interface Circuits (originally Standards Proposal SP-3357)

EIA-422 — Electrical Characteristics of Balanced Voltage Digital Interface Circuits

EIA-530 — High Speed 25-Position Interface for Data Circuit-Terminating Equipment

Table A-1 Minimum Software Revisions

Data Interface Minimum Software Version

RS-422 4.1.4

ASI & RS-422 4.1.4

To avoid damaging the modulator, always disconnect the power before removing or installing a data interface.

CAUTION

69RS-422 Parallel/Serial Interface

Description The RS-422 interface has two data connectors and an auxiliary connector supporting various operating modes.

J3 Parallel connector (25-pin D, female):

Parallel mode–In this mode, the interface behaves like a DVB parallel synchronous interface, but with RS-422 levels. The input is at the byte rate.

Serial mode–An alternate form of operation is possible, where the MSB is used for serial input at the bit rate.

J4 Serial connector (25-pin D, female):

Serial mode only–EIA-422 levels with pinout and operation per EIA-530 at a serial clock rate.

J5 Auxiliary connector (9-pin D, female):

Provides an additional ST Clock (output), plus open collector fault signals.

The appropriate interface control is automatically enabled when the interface module is installed in the modulator. The plug-in data interface is programmable for serial or parallel operation from either the front panel keypad or the remote port on the rear panel.

The following cables, or an equivalent computer-grade cable incorporating twisted, shielded pairs, are recommended:

Belden type LV Computer M9768

Belden 8175

The Belden 8175 has a lower capacitance, however it has a larger diameter and requires the selection of an appropriate connector shell.

The maximum cable length for the serial and parallel interfaces is unknown. Typical lengths are less than 5 meters.

The interface operates to the specifications described in Table A-2.

Appendix A70

DATA INTERFACES

Configuration Note: The jumper location on the interface card and the optional positions are shown in Figure A-1.

A single jumper provides the option for a transmit or receive reference clock on connector J3 (pins 2 and 15). The pins are configured at the factory as signal ground per TM 1449. For modulator applications where an SCT output is required in conjunction with using the DVB Data port (J3), SCT may be jumpered to pins 2 and 15, thus providing all signals on a single connector.

The same jumper configuration in demodulator applications provides for a Master clock input. Alternatively, SCT and Master clock interconnects are available on the Auxiliary port (J5).

Table A-2 RS-422 Interface Specifications

General Specifications

Interface Type RS-422/EIA-530 Synchronous, Serial/Parallel.

Data Rate 1.5 to 18 Mbit/s, serial.0.1875 to 12.5 Mbyte/s, parallel.

Data Framing Formats 188, 204 byte packets per ETS 300 421, and None.

Connectors 25-pin, female D for serial data.

25-pin, female D for parallel data.9-pin, female D for reference clock from unit (modulator only), plus fault.

Electrical Properties Per EIA-422.

Parallel Signal Types TX: TX Clock, TX Data, Data Valid, and Sync per TM1449.

The modulator does not require Sync or Data Valid with the 188 or 204 byte patterns.

Parallel: RX Clock, RX Data, Data Valid, and Sync per TM1449Reference (ST equivalent).

Serial Signal Types Serial: SD, ST, TT, RS, CS, RD, RT, RR (CD).


Figure A-1 RS-422 Interface Module PCB

CLOCKCONFIGURATION

MODULATOR

DEMODULATOR

J3 - 2 & 15 SCT CLOCK OUTPUT

J3 - 2 & 15 MASTER CLOCK INPUT

DVBCONFIGURATION

(FACTORY SETTING)

J3 - 2 & 15 GNDJUMPER SELECTFOR J3 PIN 2 & 15

RS-422

J3PARALLEL

J4SERIAL

J5AUX

Appendix A72

DATA INTERFACES

UserInterfaces

The following paragraphs describe the RS-422 user interfaces.

Parallel, J3, DB25 Female (DVB Parallel/Serial DataInterface) This data port supports DVB and DBS parallel and serial packetised data. The following standard frame formats are supported:

None, no framing byte format — continuous serial or parallel payload data with no framing information.

188 byte format — serial or parallel data, (1 sync byte + 187 payload bytes).

204 byte format — serial or parallel data, (1 sync byte + 187 payload bytes + 16 bytes for Reed-Solomon coding).

Figure A-2 and Figure A-3 depict the 204 byte packetization for byte parallel and byte serial formats, showing all possible data fields and timing signal relationships. The 188 byte and no framing formats are subsets of the 204 byte format.

Figure A-2 204 Byte Parallel Format

Figure A-3 204 Byte Serial Format

1 Byte Sync 1 Byte Sync187 Bytes Payload

SYNC

DATA

DVALID

C L O C K

SYNC 1 SYNC 1187 1 16

16 RS Bytes

0 1 0 0 10 1 1

8 Bits Sync 1496 Bits Payload

SYNC

DATA

DVALID

CLOCK

0 1 0 0 10 1 1

8 Bits Sync128 Bits RS


For proper operation, data and timing must be continuous and meet the criteria shown in Table A-3.

Connector Pinout, J3 The connector is a sub-miniature, 25-pin, female D connector, with threaded jack nuts (refer to Table A-4 for pinout). All signals on this connector are inputs to the modulator, except the signal pair on pins 2 and 15 when the jumper is selected for SCT output.

When used as a serial data port, Data 7 (pins 3 and 16) are the active data pins. Signal assignments for pins 2 and 15 are jumper-selectable. They are defined as signal ground in the DVB definition of TM1449, but may be configured to provide SCT out. Refer to the section on Configuration for jumper specifics.

Signal levels are as defined in EIA-422.

Table A-3 Data and Timing Criteria

DATA Payload data is byte parallel, where DATA 7 is the most significant bit; or byte serial, where data is applied to DATA 7 with the most significant bit preceding the least.

For 188 and 204 format, the payload is 187 bytes in length, preceded by a sync word. In the 204 byte mode, the payload is followed by 16 bytes of Reed-Solomon data, or 16 filler bytes.

CLOCK The clock is at the bit or byte rate in accordance with serial or parallel mode. The rising edge of the clock is centered on the data.

SYNC SYNC timing depends upon the selection made for DVB FRAMING TYPE in the Configuration Interface menu.

DVB FRAMING TYPE SYNC

188 or 204

NONE

The SYNC timing is derived from either the EXT SYNC or CORR ON DATA selection from the Configuration Interface menu.

The SYNC signal is ignored.

For the 188 or 204 byte framing modes, either a sync pulse or sync byte of value 47h is required, dependent on the modulator configuration. Both may be applied, with only one having effect, dependent upon configuration. When used, the sync pulse is active high centered over the sync word. In parallel operation, it is one byte clock wide. In serial operation, the modulator recognizes the sync pulse centered on the entire sync byte (8 clocks wide), or centered on the most significant bit of the byte (1 clock wide).

DVALID Although this signal is identified by both DVB and DBS formats, it is not used by the modulator.

Appendix A74

DATA INTERFACES

Per TM1449, the differential sense of all signal pairs is a logic “1” when “A” is positive with respect to “B.” This is the normal selection in the Configuration Interface menu (refer to Chapter 3).

Table A-4 DVB Interface Connector Pinout, J3

Pin # Signal Function/Name Type Comment

1 Clock A I/O Mod/Demod

2 System GND/REFCLKB O/GND Mod/Demod

Jumper selectableSCT for ModulatorMaster Clock for Demodulator

3 Data 7 A(MSB/Serial) I/O Mod/Demod

4 Data 6 A I/O Mod/Demod







11 DVALID A I/O Mod/Demod

12 SYNC A I/O Mod/Demod

13 Cable Shield I/O Mod/Demod

14 Clock B I/O Mod/Demod

15 System GND/REFCLKA O/GND Mod/DemodJumper selectable SCT for ModulatorMaster Clock for Demodulator

16 Data 7 B (MSB/Serial) I/O Mod/Demod

17 Data 6 B I/O Mod/Demod







24 DVALID B I/O Mod/Demod

25 SYNC B I/O Mod/Demod


Serial, J4,DB25 Female

(EIA-530Serial Data

Interface)

This interface has no provision for SYNC or DVALID signals. If framing is desired, a sync byte(47 hex) is imbedded into the data stream every 188 or 204 bytes, as selected in the modulator configuration. The modulator detects the sync byte and formats the serial interface data into a standard, error-protected 204 byte packet.

Connector Pinouts, J4 The connector is a subminiature, 25-pin, female D connector, with threaded jack nuts (refer to Table A-5 for pinout). Signal functions are as defined in EIA-530.

Notes:

1. The differential sense of all signals is a logic “1” when “B” is positive with respect to “A” as defined in EIA-530.

2. Only those pins indicated as “modulator” in the table are applicable.

Table A-5 EIA530 Serial Interface Connector Pinout (J4)

Pin # Signal Function Name Type Comment

1 530 Shield Shield Mod/Demod

2 Transmit Data (TD-A) BA-A I Modulator

3 Receive Data (RD-A) BB-A O Demodulator

4 Request To Send (RS-A) CA-A I Modulator

5 Clear To Send (CS-A) CB-A O Modulator

6 DCE Ready (DM-A) CC-A O Demodulator

7 Signal Ground AB GND

8 Receive Line Signal Detect (RR-A) CF-A O Demodulator

9 Receive Timing (RT-B) DD-B O Demodulator

10 Receive Line Signal Detect (RR-B) CF-B O Demodulator

11 Terminal Timing (TT-B) DA-B I Modulator

12 Send Timing (ST-B) DB-B O Modulator

13 Clear To Send (CS-B) CB-B O Modulator

14 Transmit Data (TD-B) BA-B I Modulator

15 Send Timing (ST-A) DB-A O Modulator

16 Receive Data (RD-B) BB-B O Demodulator

17 Receive Timing (RT-A) DD-A O Demodulator

18 N/C

Appendix A76

DATA INTERFACES

Auxiliary, J5 This port provides for other modem-specific signals not otherwise defined for either or both of the two data connectors.

Connector Pinout, J5 The connector is a sub-miniature, 9-pin, female D connector, with threaded jack nuts (refer to Table A-6 for connector pinout).

Differential pairs are RS-422 compatible.

Note: The sense of differential signal pairs is a logic “1” when “B” is positive with respect to “A”.

Single ended signals (MF and DF fault signals) are open collector where:

Voh=12V max. and Vol=0.5V max. @ Iol=8 ma.

A pull-up resistor external to the equipment is required.

The fault signals, MF and DF, operate as follows: A fault is indicated by an “OFF” collector (high) and OK status is indicated by an “ON” collector (low).

19 Request To Send (RS-B) CA-B I Modulator

20 Master Clock (MC-A) N/A I Demodulator

21 Demodulator Fault (DF) N/A O Demodulator

22 DCE Ready (DM-B) CC-B O Demodulator

23 Master Clock (MC-B) N/A I Demodulator

24 Terminal Timing (TT-A) DA-A I Modulator

25 Modulator Fault (MF) N/A O Modulator

Table A-5 EIA530 Serial Interface Connector Pinout (J4)


Table A-6 Auxiliary Connector Pinout (J5)


1 GND Signal Ground

2 Demod Fault Indicator DF I Demodulator Summary FaultRedundancy switch application

3 Send Timing ST-A O ModulatorSCT for terrestrial synchronization

4 N/C

5 Master Clock MC-B I Demodulator

6 Mod Fault Indicator MF O Modulator Summary Fault

Redundancy switch application

7 Carrier Detect /CD O Demodulator

8 Send timing ST-B O ModulatorSCT for terrestrial synchronization

9 Master Clock MC-A I Demodulator

Appendix A78

DATA INTERFACES

RS-422 Front Panel Menus

If the RS-422 interface module is installed, the Utility Interface menu displays commands specific to that interface, as shown in Figure A-4 and described in Table A-7.

Figure A-4 Utility Interface RS-422 Options Menu

TVRM75 MOD

VER: 4.1.4FUNCTION SELECT

UTILITYUTILITY

INTERFACE

INTERFACE TYPE

ACCESS TOSUBMENU



Key:

RS422 INTF SELECT

DVB (J3)530 (J4)

RTS TX-IF CNTRL

ONOFF

RTS STATE

NORMALINVERT

RS422

CTS STATE

NORMALINVERT

DM STATE

NORMAL INVERT

79RS-422 Front Panel Menus

Table A-7 Utility Interface Menu, RS-422

RS422 INT Select RS-422 interface selection. Options include the following:• DVB (parallel connector)• 530 (serial connector)

Upon entry, the current status is displayed. Press an arrow key to make the selection. Press [ENTER] to execute the change.

INTF MODE Select Programs the modulator to use either SERIAL or PARALLEL interface mode.

Note: INTF MODE SELECT appears only when the DVB interface type is selected.Upon entry, the current status is displayed. Press an arrow key to make the selection. Press [ENTER] to execute the change.

RTS TX-IF CNTRL Programs the modulator to use a Request To Send (RTS) logic high signal to enable the output when data is ready for transmission.• ON uses the RTS signal

• OFF does not use the RTS signalUpon entry, the current status is displayed. Press an arrow key to make the selection. Press [ENTER] to execute the change.

RTS State Selects the logic sense, which can be either:• NORMAL • INVERT


CTS State Selects the logic sense, which can be either:• NORMAL

• INVERTUpon entry, the current status of the RTS TX-IF CNTRL is displayed. Press an arrow key to make the selection. Press [ENTER] to execute the change.

DM State Selects the logic sense, which can be either:• NORMAL • INVERT


Appendix A80

DATA INTERFACES

RS-422 Defaults Default settings for the RS-422 interface are listed in Table A-8.

RS-422Remote

Commands

The control commands listed in Table A-9 are displayed only when the RS-422 interface module is installed.

Table A-8 RS-422 Interface Defaults

RS422 Interface Select DVB

Interface Mode Select Serial

RTS TX-IF Control Off

RTS State Normal

CTS State Normal

DM State Normal

Table A-9 RS-422 Remote Command Summary

Interface Select Command

Command:Response:

Status:Response:

<add/ISEL_xxx'cr'>add/ISEL_xxx'cr''lf']

<add/ISEL_'cr'>add/ISEL_xxx'cr''lf']

Where: xxx = DVB or 530.

This command selects which interface connector will be used for data.

RTS TX-IF Control Mode

Command:Response:

Status: Response:

<add/RTSM_xxx'cr'>add/RTSM_xxx'cr''lf']

<add/RTSM_'cr'>add/RTSM_xxx'cr''lf']

Where: xxx = ON or OFF.This command configures the modem for the RTS TX-IF control mode.

If "ON" is selected, the TX-IF output will only be turned on if the incoming RTS signal is asserted (also the TX-IF output has to be programmed ON and no major modulator faults are present). If "OFF" is selected, the TX-IF output will operate normally, ignoring the RTS signal.

RTS State Control

Command: Response:

Status: Response:

<add/RTSS_xxx'cr'>add/RTSS_xxx'cr''lf']

<add/RTSS_'cr'>add/RTSS_xxx'cr''lf']

Where: xxx = NRM (normal sense), or INV (inverted sense).

This command controls the logic sense of the RTS signal.

CTS State Control

Command: Response:

Status: Response:

<add/CTSS_xxx'cr'>add/CTSS_xxx'cr''lf']

<add/CTSS_'cr'>add/CTSS_xxx'cr''lf']

Where: xxx = NRM (normal sense), or INV (inverted sense).

This command controls the logic sense of the CTS signal.

81RS-422 Front Panel Menus

DM State Control

Command: Response:

Status: Response:

<add/DMS_xxx'cr'>add/DMS_xxx'cr''lf']

<add/DMS_'cr'>add/DMS_xxx'cr''lf']

Where: xxx = NRM (normal sense) or INV (inverted sense).

This command controls the logic sense of the DM (DCE-ready) signal.

MCP Command Config.

Command:Response:

<add/MCP_'cr'>add/MCP_'cr'ISEL_xxxxxx’cr’ 2ICLK_xxx’cr’TDVB_xxxx’cr’MF_nnn.nnnn'cr'MR_nnnn_mmm.mmmmmm'cr'MPO_snn.n’cr’MOP_snn.n'cr'SE_xxx'cr' TCP_xxx'cr'TDP_xxxx'cr'TDF_xxxx’cr’ISP_xxx'cr'SYNC_xxxx'cr'MSR_xxx'cr'MT_xxxx’cr’TXPU_xxxxx’cr’COM_xxxxxx’cr’RTSM_xxx’cr’RTSS_xxx’cr’CTSS_xxx’cr’ DMS_xxx’cr’TCAA_xxxx'cr'RF_xxx'cr''lf'])

Interface SelectInterface ModeDVB Framing TypeModulator FrequencyModulator RateModulator Power OffsetModulator Output PowerScrambler Enable (ON/OFF)Transmit Clock PhaseTransmit Data PhaseTransmit Data FaultTransmit 2047 Pattern GeneratorTransmit Sync SelectModulator Spectrum RotationModulator TypeTransmit IF Output Power-up ConfigurationCarrier Only ModeRTS Mode ControlRTS State ControlCTS State ControlDMS State ControlTX Clock Activity ActionRF Output (ON/OFF)

ICS Command Config.

Command: Response:

<add/ICS_'cr' >add/ICS_'cr'TCP_xxx'cr'TDP_xxxx'cr'ISP_xxx'cr'SYNC_xxxx'cr'TDF_xxxx’cr’TDVB_xxxx’cr’INID_xxxxxxxxx’cr’ISEL_xxxxxx’cr’ICLK_xxx’cr’RTSM_xxx’cr’RTSS_xxx’cr’CTSS_xxx’cr’DMS_xxx’cr’TCAA_xxxxx’cr’’lf’]

Transmit Clock PhaseTransmit Data PhaseTransmit 2047 Pattern GeneratorTransmit Sync SelectTransmit Data FaultDVB Framing TypeInterface IdentificationInterface SelectInterface ModeRTS Mode ControlRTS State ControlCTS State ControlDM State ControlTX Clock Activity Action

Table A-9 RS-422 Remote Command Summary (continued)

Appendix A82

DATA INTERFACES

ASI & RS-422 Data Interface

This section describes the Asynchronous Serial Interface (ASI) and RS-422 Data Interface.

Applicable specifications referenced in this manual include:

TM1449 — Interfaces for CATV/SMATV Headends and Similar Professional Equipment

EIA-422 — Electrical Characteristics of Balanced Voltage Digital Interface Circuits

EIA-530 — High Speed 25-Position Interface for Data Circuit - Terminating Equipment

ETS 300 421 — Digital Broadcasting Systems For Television, Sound And Data Services; Framing Structure, Channels Coding And Modulation For 11/12 GHz Services

BCS Parameters 23 to 32 1

23

24

25

26

27

28 to 32

Interface Select (ref. "ISEL_" command).

RTS TX-IF Control Mode (ref. "RTSM_" command).

RTS State Control (ref “RTSS_” command).

CTS State Control (ref “CTSS_" command).

DM State Control (ref "DMS_" command).

Reserved.

p23 = n, where n = ‘0’ (DVB), ‘1’ (530).

p24 = n, where n = ‘0’ (Off), ‘1’ (On).

p25 = n, where n = ‘0’ (Normal), ‘1’ (Invert).



1 - Parameters 23 through 27 of the BCS command are displayed only when the RS-422 interface module is installed.2 - The use of this command is dependent upon the type of interface module installed in the modulator. This command is used by the Tiernan M:N protection switch to collect information that is necessary to configure back-up modulators. Because this command (content and/or order) can be changed at any time by Tiernan, it is advisable that other commands ('MCS_' and 'ICS_', or 'BCS_') be used for M&C systems.

Table A-9 RS-422 Remote Command Summary (continued)

83ASI & RS-422 Data Interface

Description This data interface is a plug-in module, shown in Figure A-5, that inserts into the rear of the TVRM75 Modulator. It provides physical and electrical connection between the external terrestrial circuit and the internal circuitry of the modulator.

Figure A-5 ASI Module Assembly

The ASI and RS-422 interface combines two electrical and physical interfaces into a single assembly.

The ASI section provides DVB-compliant interface with BNC connectors, while the RS-422 section supports serial communications through a standard 25-pin D connector per EIA-530. Operation for either ASI or RS-422 is selected by programming the unit from the front panel keypad/LCD or from the remote port. Only one of the interface types is active at a time. Figure A-6 is a block diagram of the interface.

J3J4

J5J6

J7

AS

I IN

PU

TS

E

IA-4

22/5

30 A

SI

OU

TP

UT

S

Appendix A84

DATA INTERFACES

Figure A-6 ASI and RS-422 Interface Block Diagram

A 75Ω coaxial cable (Belden 8281 or equivalent) is recommended for all ASI connectors. Typical coaxial cable length is up to 140 meters with good quality coaxial cable. Typical alternation of up to 18 dB at 270 MHz is permitted. The following cables, or an equivalent computer grade cable incorporating twisted, shielded pairs, are recommended for the RS-422 interface:

Belden type LV Computer M9768

Belden 8175

The Belden 8175 has a lower capacitance, however it has a larger diameter and requires the selection of an appropriate connector shell.

The maximum cable length for the serial and parallel interfaces is unknown. Typical lengths are less than 2 meters. The interface operates to the specifications described in Table A-10.

ASIRECOVERY

J3

J4

RECOVERY,

PROCESSING

AND

ASI/RS-422

SELECTION

RS

-42

2

SD

TT

ST

RS

CS

RR

RD

RT

J5

J6ASI

GENERATOR

LOOPBACKLEVEL

TRANSLATORS

M&C

MODULATOR/DEMODULATORINTERFACE

TERRESTRIALINTERFACE

TXASI

RXASI

BNC-F

BNC-F

DCPOWER

DM


Table A-10 ASI & RS-422 Specifications General SpecificationsData Framing Formats 188, 204 byte packets per ETS 300 421, and None.Hot Pluggable Do not Hotplug. Unit power must be turned off prior to removal or

insertion of the data interface.ASI SpecificationsData Rate 1.5 to 100 Mbit/s ASIClock Rate Uncertainty Programmed data rate ± 100 ppmTransport Clock ASI The transport rate is 270 Mbit/s for all data ratesImpedance 75ΩReturn Loss 15 dB, frequencies, 5 to 270 MHzLoop Functions Loopback; LoopThru 1

Connectors BNC femaleElectrical Properties Per TM 1449, 75ΩSignal Types Serial data Voltage Level 800 mV ± 10% into 75Ω

ASI Data Loop 3 dB Cutoff Frequency 2 Hz (refer to Note 2)

Jitter Tolerance Meets ITU-T G.823 (3/93) and ITU-T G.824 (3/93) (refer to Note 2)

Jitter Transfer < 0.5 dB peaking up to cutoff frequency. –20 dB per decade beyond cutoff. (refer to Note 2)

Cable Length, Typical RG59 Belden 8281Rev. – 50 m 70 mRev. A (refer to note 2) 100 m 140 m

RS-422 SpecificationsData Rate 1.5 to 18 Mbit/s, serial RS-422Clock Rate Uncertainty Programmed data rate ± 100 ppmConnectors 25-Pin D female per EIA-530Electrical Properties per EIA-422Signal Types SD, TT, ST, RD, RT, RS, RR, CS, DM, and MC

Data synchronization is detected by correlating the data stream for the MPEG2 sync pattern per ETS 300 421.

Voltage Level 4 ±2 V differential into 100ΩNotes : 1 In loopback TX, data is routed through as much of the interface card as practicable before being returned to the RX interface. In a modulator chassis, TX data continues to enter the modulator and is TX during loopback.2 Rev. A or later assemblies

Appendix A86

DATA INTERFACES

UserInterfaces

The following paragraphs describe the electrical and physical properties of the ASI and RS-422 data interface module.

Transmit Input Connectors, J3/J4, BNC, Female These two connectors accept TX data from the terrestrial interface. By default, J3 is enabled and J4 is disabled. The active input is user programmable and maintained in non-volatile memory of the modulator chassis. Both connectors are terminated into 75Ω whether selected or not.

ASI Loopback Output Connectors, J6/J7, BNC, FemaleDuplicate signals exit both of these connectors on the modulator when Loopback mode is enabled. The input data is looped back to the output data connectors and data continues into the modulator.

RS-422 Connector, J5, 25-pin D, Female This connector is compatible with EIA-530 operation and pin-out. It is a serial interface with RS-422 signals plus the TTL-OC fault signals indicating the status of the modulator.

The connector is a 25-pin, female, D type, with threaded jack nuts (refer to Table A-11 for connector pinout).

Notes:

1. RS-422 signal levels are as defined in EIA-422.2. The differential sense of all signal pairs is a logic “1” when “A” is

negative with respect to “B.”

Single ended signals (MF and DF fault signals) are open collector where:

Voh=12V max. and Vol=0.5V max. @ Iol=8 ma.

A pull-up resistor external to the equipment is required.

The fault signals, MF and DF, operate as follows: A fault is indicated by an “OFF” collector (high) and OK status is indicated by an “ON” collector (low).


Table A-11 RS-422 Connector Pinout (Per EIA-530), J5


1 530 Shield Shield Mod/Demod

2 Transmit Data (TD-A) BA-A I Modulator

3 Receive Data (RD-A) BB-A O Demodulator

4 Request To Send (RS-A) CA-A I Modulator

5 Clear To Send (CS-A) CB-A O Modulator

6 DCE Ready (DM-A) CC-A O Demodulator

7 Signal Ground AB GND

8 Receive Line Signal Detect (RR-A) CF-A O Demodulator

9 Receive Timing (RT-B) DD-B O Demodulator

10 Receive Line Signal Detect (RR-B) CF-B O Demodulator

11 Terminal Timing (TT-B) DA-B I Modulator

12 Send Timing (ST-B) DB-B O Modulator

13 Clear To Send (CS-B) CB-B O Modulator

14 Transmit Data (TD-B) BA-B I Modulator

15 Send Timing (ST-A) DB-A O Modulator

16 Receive Data (RD-B) BB-B O Demodulator

17 Receive Timing (RT-A) DD-A O Demodulator

18 N/C

19 Request To Send (RS-B) CA-B I Modulator

20 DTE Ready (MC-A) CD-A I

21 Demodulator Fault (DF) DF O Demodulator

22 DCE Ready (DM-B) CC-B O Demodulator

23 DTE Ready (MC-B) CD-B I

24 Terminal Timing (TT-A) DA-A I Modulator

25 Modulator Fault (MF) MF O Modulator

Appendix A88

DATA INTERFACES

ASI & RS-422Front Panel

Menus

When the ASI/RS-422 interface is selected only the commands that apply to that specific interface (ASI or RS-422) are displayed.

Figure A-7 ASI/RS-422 Interface Menu

INTERFACE TYPE

ASI/RS422

ACCESS TOSUBMENU CONDITIONAL OR

OPTION-DEPENDENTParameter Information

Key:

INTERFACE SELECT

ASIRS422

TX INTERFACEFIRMWARE

Press <ENTER> to showcurrent FW release date

ASI LINK SELECT

A-Link (J4)B-Link (J3)


MM/DD/YYYYPress <CLEAR> to exit date

menu.

ONOFF


INTERFACE LOOPTHRU RTS TX-IF CNTRL

ONOFF


RTS STATE

NORMALINVERT


CTS STATE

NORMALINVERT




UTILITYINTERFACE

DM STATE

NORMALINVERT


ST STATE

NORMALINVERT



Table A-12 ASI and RS-422 Interface Menu (refer to Figure A-7)

INTERFACE TYPE Displays ASI/RS422 or UNKNOWN. This is a status window only, and no changes can be made from this menu.

INTERFACE SELECT Displays the mode type ASI or RS422 interface. Upon entry, the current status of the mode type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

TX INTF FIRMWARE Press [ENTER] will show the FW Release date.

ASI LINK SELECT(ASI Mode Only)

Displays the A-LINK (J4) or B-LINK (J3). Upon entry, the current status of the mode type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

INTERFACE LOOP THRU(ASI Mode Only)

Displays the Interface Loop thru selection of either ON or OFF. Upon entry, the current status of the mode type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.When On is selected, input data is looped to the output of the terrestrial interface; data also continues into the modulator. This mode is identical to the Interface Loopback function found on the Configuration Interface menu, except that the front panel yellow Test Mode LED is not illuminated.Note : This option available only with VER 5.3.1 and later.

RTS TX-IF CNTRL(RS422 Mode Only)

Displays the RTS selection of either ON or OFF. Upon entry, the current status of the mode type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

RTS STATE(RS422 Mode Only)

Displays the RTS selection of either NORMAL or INVERT. Upon entry, the current status of the mode type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

CTS STATE(RS422 Mode Only)

Displays the CTS selection of either NORMAL or INVERT. Upon entry, the current status of the mode type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

DM STATE(RS422 Mode Only)

Displays the DM selection of either NORMAL or INVERT. Upon entry, the current status of the mode type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

ST STATE(RS422 Mode Only)

Displays the ST selection of either NORMAL or INVERT. Upon entry, the current status of the mode type is displayed. Press [↑] or [↓] to make the selection. Press [ENTER] to execute the change.

Appendix A90

DATA INTERFACES

ASI and RS-422 Defaults Default settings for the ASI/RS-422 interface are listed in Table A-13.

ASI & RS-422Remote

Commands

The remote control commands listed in Table A-14 are displayed only when the ASI/RS-422 interface module is installed.

Table A-13 ASI/RS-422 Defaults

Interface Defaults

Interface Select ASI

RTS TX-IF Control Off

RTS State Normal

CTS State Normal

Data or Clock Normal

Frame Format 188

Table A-14 ASI and RS-422 Remote Command

Interface Select Command

Command:Response:

Status:Response

<add/ISEL_xxxxx'cr'>add/ISEL_xxxxx'cr''lf']

<add/ISEL_'cr'>add/ISEL_xxxxx'cr''lf']

Where: xxxxx = ASI or RS422.This command selects which interface connector will be used for data.

ASI Link (Input) Select Command

Command:Response:

Status:Response:

<add/ASI_x'cr'>add/ASI_x'cr'lf']

<add/ASI_'cr'>add/ASI_x'cr'lf']

Where x = 'A' (A-Input) or 'B' ( B-Input).

RTS TX-IF Control Mode

Command:Response:

Status:Response:

<add/RTSM_xxx'cr'>add/RTSM_xxx'cr''lf']

<add/RTSM_'cr'>add/RTSM_xxx'cr''lf']

Where: xxx = ON or OFF.This command configures the modem for the RTS TX-IF control mode. If "ON" is selected, the TX-IF output will only be turned on if the incoming RTS signal is asserted (also the TX-IF output has to be programmed ON and no major modulator faults are present). If "OFF" is selected, the TX-IF output will operate normal ignoring the RTS signal.

RTS State Control

Command:Response:

Status:Response:

<add/RTSS_xxx'cr'>add/RTSS_xxx'cr''lf']

<add/RTSS_'cr'>add/RTSS_xxx'cr''lf']


This command controls the logic sense of the RTS signal.


CTS State Control

Command:Response:

Status:Response:





DM State Control

Command:Response:

Status:Response:



Where: xxx = NRM (normal sense) or INV (inverted sense)


ST State Control

Command:Response:

Status:Response:

<add/ST_xxx'cr'>add/ST_xxx'cr''lf']

<add/ST_'cr'>add/ST_xxx'cr''lf']


This command controls the logic sense of the ST signal.

Interface Firmware Information

Command:Response:

<add/IFI_'cr'>add/IFI_'cr''lf']

FW/nnnnn-drr’cr’Mm/dd/yyyy’cr’’If’]

Where: nnnnn = Firmware number (0 to 65535)

d = Firmware dash number (0 to 99)rr = Firmware revision (- or A thru ZZ)

Table A-14 ASI and RS-422 Remote Command (continued)

Appendix A92

DATA INTERFACES

CTS State Control

Command:Response:

Status:Response:





DM State Control

Command:Response:

Status:Response:





ST State Control

Command:Response:

Status:Response:

<add/ST_xxx'cr'>add/ST_xxx'cr''lf']

<add/ST_'cr'>add/ST_xxx'cr''lf']


This command controls the logic sense of the ST signal.

Interface Firmware Information

Command:Response:

<add/IFI_'cr'>add/IFI_'cr''lf']

FW/nnnnn-drr’cr’Mm/dd/yyyy’cr’’If’]

Where: nnnnn = Firmware number (0 to 65535)

d = Firmware dash number (0 to 99)rr = Firmware revision (- or A thru ZZ)



MCP Command Config.

Command:Response:

<add/MCP_'cr'>add/MCP_'cr'ISEL_xxxxxx'cr'ICLK_xxx'cr'TDVB_xxxx'cr'MF_nnn.nnnn'cr'MR_nnnn_mmm.mmmmmm'cr'MPO_snn.n'cr'MOP_snn.n'cr'SE_xxx'cr'TCP_xxx'cr'TDP_xxxx'cr'TDF_xxxx'cr'ISP_xxx'cr'SYNC_xxxx'cr'MSR_xxx'cr'MT_xxxx'cr'TXPU_xxxxx'cr'COM_xxxxxx'cr'ASI_x'cr'RTSM_xxxx'cr'RTSS_xxxx'cr'CTSS_xxxx'cr'DMS_xxxx'cr'ST_xxxx'cr'TCAA_xxxxx'cr'RF_xxx'cr''lf']

Interface Select Interface ModeDVB Framing TypeModulator FrequencyModulator RateModulator Power OffsetModulator Output PowerScrambler Enable (ON/OFF)Transmit Clock PhaseTransmit Data PhaseTransmit Data FaultTransmit 2047 Pattern GeneratorTransmit Sync SelectModulator Spectrum RotationModulator TypeTransmit IF Output Power-up ConfigurationCarrier Only ModeASI InputRTS Mode ControlRTS State ControlCTS State Control DM State ControlST State ControlTX Clock Activity ActionRF Output (ON/OFF)

The use of this command is dependent upon the type of interface module installed in the modulator. This command is used by the Tiernan M:N protection switch to collect information that is necessary to configure back-up modulators. Because this command (content and/or order) can be changed at any time by Tiernan, it is advisable that other commands ('MCS_' and 'ICS_', or 'BCS_') be used for M&C systems.

Note: Only displayed when RS-422 interface is installed.


Appendix A94

DATA INTERFACES

ICS Command Config.

Command:Response:

<add/ICS_'cr'>add/ICS_'cr'TCP_xxx'cr'TDP_xxxx'cr'ISP_xxx'cr'SYNC_xxxx'cr'TDF_xxxx'cr'TDVB_xxxx'cr'INID_xxxxxxxxx'cr'ISEL_xxxxxx'cr'ICLK_xxx'cr' ASI_x'cr'RTSM_xxx'cr'RTSS_xxx'cr'CTSS_xxx'cr'DMS_xxx'cr'ST_xxx'cr'TCAA_xxxxx'cr''lf']

Transmit Clock PhaseTransmit Data PhaseTransmit 2047 Pattern GeneratorTransmit Sync SelectTransmit Data FaultDVB Framing TypeInterface IdentificationInterface SelectInterface Mode ASI InputRTS Mode ControlRTS State ControlCTS State ControlDM State ControlST State ControlTX Clock Activity Action

BCS Parameters 23 to 32.

23

24

25

26

27

28

29

30 to 32

Interface Select (ref. "ISEL_" command).

RTS TX-IF Control Mode (ref. "RTSM_" command).

RTS State Control(ref "RTSS_" command).

CTS State Control (ref "CTSS_" command).

DM State Control (ref "DMS_" command).

ST State Control (ref "ST_" command).

ASI Input Control (ref "ASI_" command).

Reserved.

p23 = n, where n = '0' (ASI), '1' (RS422).

p24 = n, where n = '0' (Off), '1' (On).

p25 = n, where n = '0' (Normal), '1' (Invert).




P29 = n, where n = 'A' (A-Input), 'B' (B-Input).

Parameters 23 through 27 of the BCS command are displayed only when the ASI interface module is installed.


95General

Appendix B Remote Control Operation

This appendix describes the remote control operation of the TVRM75.

Firmware number: FW/5613-1PFW/5613-2P

Software version: 5.3.1

General Remote controls and status information are transferred via an RS-485 (optional RS-232) serial communications link. Commands and data are transferred on the remote control communications link as US ASCII-encoded character strings. The remote communications link is operated in a half-duplex mode.

Communications on the remote link are initiated by a remote controller or terminal. The modem never transmits data on the link unless it is commanded to do so.

Some commands and status information are interface-type dependent. Refer to Appendix A.

Message Structure

The ASCII character format used requires 11 bits/character:

1 start bit

7 information bits

1 parity bit

2 stop bits

Messages on the remote link fall into the categories of commands and responses. Commands are messages which are transmitted to a satellite modem, while responses are messages returned by a satellite modem in response to a command.

The general message structure is as follows:

Start Character

Device Address

Command/Response

End of Message Character

Appendix B96

Remote Control Operation

Start Character

A single character precedes all messages transmitted on the remote link which flags the start of a message. This character is:

“<” for commands

“>” for responses

Device Address

The device address is the address of the one satellite modulator which is designated to receive a transmitted command, or which is responding to a command.

Valid device addresses are 1 to 3 characters long, and in the range of 1 to 255. Address 0 is reserved as a global address which simultaneously addresses all devices on a given communications link. Devices do not acknowledge global commands. Each satellite modulator which is connected to a common remote communications link must be assigned its own unique address. Addresses are software selectable at the modulator, and must be in the range of 1 to 255.

Command/Response

The command/response portion of a message contains a variable-length character sequence of command and response data. If a satellite modulator receives a message addressed to it which does not match the established protocol or cannot be implemented, a negative acknowledgment message is sent in response. This message is:

>add/?ER1_parity error'cr''lf'](Error message for received parity errors.)

>add/?ER2_invalid parameter'cr''lf'](Error message for a recognized command which cannot be implemented or has parameters which are out of range.)

>add/?ER3_unrecognizable command'cr''lf'](Error message for a recognized command which cannot be implemented or has parameters which are out of range.)

>add/?ER4_modem in local mode'cr''lf'](Modem in local error; send the REM command to go to remote mode.)

>add/?ER5_hard coded parameter'cr''lf'](Error message indicating that the parameter is hardware dependent and may not be changed remotely.)

Note: “add” is used to indicate a valid 1 to 3 character device address in the range between 1 and 255.

97Configuration Commands/Responses

End Character

Each message is ended with a single character which signals the end of the message:

“cr” Carriage return character for commands

“lf” Line feed

“]” End bracket for responses

Configuration Commands/Responses

Table B-1 Modulator Commands and Responses Modulator Frequency

Command:Response:

Status:Response:

<add/MF_nnn.nnnn'cr'>add/MF_nnn.nnnn'cr'RF_OFF'cr''lf']

<add/MF_'cr'>add/MF_nnn.nnnn'cr''lf']

Where: nnn.nnnn = Frequency in MHz, 50.0000 to 180.0000 in 2.5 kHz steps.

Note: When the modulator frequency is programmed the RF output is switched off.

RF Output (IF Output)

Command:Response:

Status:Response:

<add/RF_xxx'cr'>add/RF_xxx'cr''lf']

<add/RF_'cr'>add/RF_xxx'cr''lf']

Where: xxx = ON or OFF.

Modulator Rate Assignment

Command:Response:

Status:Response:

<add/AMRV_nnnnn_mmm.mmmmmm'cr'>add/AMRV_nnnnn_mmm.mmmmmm'cr''lf']

<add/AMRV_'cr'>add/AMRV_nnnnn_mmm.mmmmmm'cr''lf']

Where: nnnnn = 1/2 (QPSK 1/2) [Code rate]

3/4 (QPSK 3/4)7/8 (QPSK 7/8) 5/6 (QPSK 5/6) 2/3 (QPSK 2/3)8P23 (8PSK 2/3) 8P56 (8PSK 5/6)8P89 (8PSK 8/9)

mmm.mmmmmm = Data rate in Mbps.Symbol Rate Assignment

Command:Response:

Status:Response:

<add/ASR_nnnnn_mm.mmmmmm'cr'>add/ASR_nnnnn_mm.mmmmmm'cr''lf']

<add/ASR_'cr'>add/ASR_nnnnn_mm.mmmmmm'cr''lf']

Where: nnnnn = 1/2 (QPSK 1/2) [Code rate]

3/4 (QPSK 3/4)7/8 (QPSK 7/8) 5/6 (QPSK 5/6) 2/3 (QPSK 2/3)8P23 (8PSK 2/3) 8P56 (8PSK 5/6)8P89 (8PSK 8/9)

mm.mmmmmm = Symbol rate in MS/s.

Appendix B98


Note: The Scrambler function is related to Energy Dispersal and has no association with conditional access scrambling. To avoid any confusion, Scrambler is referred to as Energy Dispersal on newer versions of the TVRM75.

Set Modulator Output Power Level

Command:Response:

Status:Response:

<add/MOP_snn.n'cr'>add/MOP_snn.n'cr''lf']

<add/MOP_'cr'>add/MOP_snn.n'cr''lf']

Where: snn.n = -20.0 to +5.0 in 0.1 steps (nominal range in dBm).

Scrambler Enable(refer to note)

Command:Response:

Status:Response:

<add/SE_xxx'cr'>add/SE_xxx'cr''lf']

<add/SE_'cr'>add/SE_xxx'cr''lf']


Modulator Spectrum Rotation

Command:Response:

Status:Response:

<add/MSR_xxx'cr'>add/MSR_xxx'cr''lf']

<add/MSR_'cr'>add/MSR_xxx'cr''lf']

Where: xxx = NRM (normal spectrum) or INV (inverted spectrum).

Carrier Only Mode

Command:Response:

Status:Response:

<add/COM_xxxxxx'cr'>add/COM_xxxxxx'cr''lf']

<add/COM_xxxxxx'cr'>add/COM_xxxxxx'cr''lf']

Where: xxxxxx = OFF, DUAL, OFFSET, or CENTER.

Transmit IF Output Power-up Condition

Command:Response:

Status:Response:

<add/TXPU_xxxx'cr'>add/TXPU_xxxx'cr''lf']

<add/TXPU_xxxx'cr'>add/TXPU_xxxx'cr''lf']

Where: xxxx = LAST (last known state) or OFF (OFF).

This command selects the state that the TX-IF Output will be at power up.

Set Modulator Power Offset

Command:Response:

Status:Response:

<add/MPO_snn.n'cr'>add/MPO_snn.n'cr''lf']

<add/MPO_'cr'>add/MPO_snn.n'cr''lf']

Where: snn.n = +40.0 to -40.0 in 0.1dB increments.

Note: The modulator power offset is added to the nominal power level.

Modulator Type

Command:Response:

Status:Response:

<add/MT_xxxx’cr’>add/MT_xxxx’cr’lf’]

<add/MT_xxxx’cr’>add/MT_xxxx’cr’lf’]

Where: xxxx = DVB1 or DVB2.

Table B-1 Modulator Commands and Responses (continued)


Table B-2 Interface Commands and Responses Transmit Clock Phase

Command:Response:

Status:Response:

<add/TCP_xxx'cr'>add/TCP_xxx'cr''lf']

<add/TCP_'cr'>add/TCP_xxx'cr''lf']

Where: xxx = NRM (normal clock phasing) or INV (inverted clock phasing).

Transmit Data Phase

Command:Response:

Status:Response:

<add/TDP_xxx'cr'>add/TDP_xxx'cr''lf']

<add/TDP_'cr'>add/TDP_xxx'cr''lf']

Where: xxx = NRM (normal data phasing) or INV (inverted data phasing).

Interface Substitution Pattern

Command:Response:

Status:Response:

<add/ISP_xxx'cr'>add/ISP_xxx'cr''lf']

<add/ISP_'cr'>add/ISP_xxx'cr''lf']


Note : Transmit 2047 Pattern.

DVB Sync Selection

Command:Response:

Status:Response:

<add/SYNC_xxxx'cr'>add/SYNC_xxxx'cr''lf']

<add/SYNC_'cr'>add/SYNC_xxxx'cr''lf']

Where: xxxx = EXT (sync pulse), DATA (data sync byte), or AUTO.

Transmit Data Fault

Command:Response:

Status:Response:

<add/TDF_xxxx'cr'>add/TDF_xxxx'cr''lf']

<add/TDF_'cr'>add/TDF_xxxx'cr''lf']

Where: xxxx = NONE, DATA, or AIS.

DVB Framing Type

Command:Response:

Status:Response:

<add/TDVB_xxxx'cr'>add/TDVB_xxxx'cr''lf']

<add/TDVB_'cr'>add/TDVB_xxxx'cr''lf']

Where: xxxx = 188, 204, or NONE.

Interface Identification

Status:Response:

<add/INID_'cr'>add/INID_xxxxxxx'cr''lf']

Where: xxxxxxx = RS-422, ASI RS422, or UNKNOWN.

Interface Mode Config

Command:Response:

Status:Response:

<add/ICLK_xxx'cr'>add/ICLK_xxx'cr''lf']

<add/ICLK_'cr'>add/ICLK_xxx'cr''lf']

Where: xxx = SER (Serial mode, CLK = Data rate) or PAR (Parallel mode CLK = Data rate/8).

TX Clock Activity Action

Command:Response:

Status:Response:

<add/TCAA_xxxxx'cr'>add/TCAA_xxxxx'cr''lf']

<add/TCAA_'cr'>add/TCAA_xxxxx'cr''lf']

Where: xxxxx = ALARM or FAULT.

Appendix B100


Table B-3 System Commands and ResponsesTime Of Day

Command:Response:

Status:Response:

<add/TIME_hh:mmxx'cr'>add/TIME_hh:mmxx'cr''lf']

<add/TIME_'cr'>add/TIME_hh:mmxx'cr''lf']

Where: hh = 1 to 12 (hours).mm = 00 to 59 (minutes).xx = AM or PM.

Date Command:Response:

Status:Response:

<add/DATE_mm/dd/yyyy'cr'>add/DATE_mm/dd/yyyy'cr''lf']

<add/DATE_'cr'>add/DATE_mm/dd/yyyy'cr''lf']

Where: mm = 1 to 12 (month).dd = 1 to 31 (day).yy = 00 to 99 (year) in two-digit modeyyyy = 1975 to 1999, and 2000 to 2075 in four-digit mode.

Remote Command:Response:

<add/REM_'cr'>add/REM_'cr''lf']

Configures the Modem for remote operation.

The modulator will respond to any status request at any time. However, the modulator must be in 'Remote Mode' to change configuration parameters.

Clear Stored Faults

Command:Response:

<add/CLSF_'cr'>add/CLSF_'cr''lf']

This command is used to clear all stored faults logged by the modulator.

Save Mod Config

Command:Response:

<add/SMC_nn'cr'>add/SMC_nn'cr''lf']

Where: n = 1, 2, 3, ..., 10 (stored configuration number).

This command saves the current mod configuration for recall at a later time using the 'RMC_' command. Up to ten different mod configurations can be saved.

Recall Mod Config

Command:Response:

<add/RMC_nn'cr'>add/RMC_nn'cr''lf']

Where: n = 1, 2, 3, ..., 10 (stored configuration number).

This command causes the mod to be reprogrammed with configuration parameters previously saved using the 'SMC_' command. One of ten saved configurations can be specified.

Alarm Relay State

Command:Response:

Status:Response:

<add/ARLY_xxx'cr'>add/ARLY_xxx'cr''lf']

<add/ARLY_'cr'>add/ARLY_xxx'cr''lf']


This command controls the logic sense of the Mod alarm relay (NC and NO contacts).


Table B-4 Configuration Status Commands and Responses Modulator Rate

Command:Response:

<add/MR_'cr'>add/MR_nnnnn_mmm.mmmmmm'cr''lf']

Where: nnnnn =1/2 (QPSK 1/2) [Coder rate] 3/4 (QPSK 3/4)7/8 (QPSK 7/8) 5/6 (QPSK 5/6) 2/3 (QPSK 2/3)8P23 (8PSK 2/3) 8P56 (8PSK 5/6)8P89 (8PSK 8/9)mmm.mmmmmm = Data rate in MHz.

Modulator Config Status

Command:Response:

<add/MCS_'cr'>add/MCS_'cr'RF_xxx'cr'MF_nnn.nnnn'cr'MR_nnnn_mmm.mmmmmm'cr'AMRA_nnnn_mmm.mmmmmm'cr' AMRV_nnnn_mmm.mmmmmm'cr'MPO_snn.n'cr'MOP_snn.n'cr'SE_xxx'cr'COM_xxxxxx'cr' MSR_xxx'cr'MT_xxxx’cr’TXPU_xxxxx'cr''lf']

RF Output (ON/OFF)Modulator FrequencyModulator RateModulator RateModulator RateModulator Power OffsetModulator Output PowerScrambler Enable (ON/OFF)Carrier Only ModeModulator Spectrum RotationModulator TypeTransmit IF Output Power-up Configuration

The Modulator configuration status command causes a block of data to be returned by the addressed mod. The block of data reflects the current configuration status of the modulator module. Additional configuration status of new options and features will always be appended to the end.

Appendix B102


Modulator/Coder Config Program Status

Command:Response:

<add/MCP_'cr'>add/MCP_'cr'ISEL_xxxxxx'cr' (see Note )ICLK_xxx'cr'TDVB_xxxx'cr'MF_nnn.nnnn'cr'MR_nnnn_mmm.mmmmmm'cr'MPO_snn.n'cr'MOP_snn.n'cr'SE_xxx'cr'TCP_xxx'cr'TDP_xxxx'cr'TDF_xxxx'cr'ISP_xxx'cr'SYNC_xxxx'cr'MSR_xxx'cr'MT_xxxx’cr’TXPU_xxxxx'cr'COM_xxxxxx'cr'RTSM_xxx'cr'RTSS_xxx'cr'CTSS_xxx'cr'DMS_xxx'cr'RF_xxx'cr''lf']

Interface SelectInterface ModeDVB Framing TypeModulator FrequencyModulator RateModulator Power OffsetModulator Output PowerScrambler Enable (ON/OFF)Transmit Clock PhaseTransmit Data PhaseTransmit Data FaultTransmit 2047 Pattern GeneratorTransmit Sync SelectModulator Spectrum RotationModulation TypeTransmit IF Output Power-up ConfigurationCarrier Only ModeRTS Mode ControlRTS State ControlCTS State ControlDM State ControlRF Output (ON/OFF)

This command is used by the Tiernan M:N protection switch to collect information that is necessary to configure back-up mods. Because this command (content and/or order) can be changed at any time by Tiernan, it is advisable that other commands ('MCS_' and 'ICS_', or 'BCS_') be used for M&C systems.Note : Only displayed when RS-422 interface is installed.

Table B-4 Configuration Status Commands and Responses (continued)


Interface Config Status

Command:Response:

<add/ICS_'cr'>add/ICS_'cr'TCP_xxx'cr'TDP_xxxx'cr'ISP_xxx'cr'SYNC_xxxx'cr'TDF_xxxx'cr'TDVB_xxxx'cr'INID_xxxxxxx'cr'ISEL_xxxxxx'cr'

ASI_x’cr’ICLK_xxx'cr'

RTSM_xxxx'cr'

RTSS_xxxx'cr'

CTSS_xxxx'cr'

DMS_xxxx'cr'

STS_xxx’cr’

Transmit Clock Phase Transmit Data Phase Transmit 2047 Pattern Generator Transmit Sync Select Transmit Data Fault DVB Framing TypeInterface IdentificationInterface Select (Dependent on ASI/RS422 INTF )ASI Input (Dependent on ASI/RS422 INTF )Interface Mode (Dependent on ASI/RS422 INTF )RTS Mode Control (Dependent on ASI/RS422 INTF )RTS State Control (Dependent on ASI/RS422 INTF )CTS State Control (Dependent on ASI/RS422 INTF )DM State Control (Dependent on ASI/RS422 INTF )ST State Control (Dependent on ASI/RS422 INTF )

Modem Faults Status (Summary)

Command:Response:

<add/MFS_'cr'>add/MFS_'cr'MOD_xxx'cr'ITX_xxx'cr'CEQ_xxx'cr''lf']

Modulator (FLT/OK)Interface Transmit Side (FLT/OK)Common Equipment (FLT/OK)

Modulator Status

Command:Response:

<add/MS_'cr'>add/MS_'cr'RF_xxx'cr'

MOD_xxx'cr'SYN_xxx'cr'DCS_xxx'cr'ICH_xxx'cr'QCH_xxx'cr'AGC_xxx'cr'IF_xxx'cr'CONF_xxx'cr'SFLT_xx'cr''lf']

RF Output (ON/OFF) Actual Status Not ConfigModule (OK/FLT)IF Synthesizer (OK/FLT)Data Clock Synthesizer (OK/FLT)I Channel (OK/FLT)Q Channel (OK/FLT)AGC Level (OK/FLT)IF Module fault (OK/FLT)Configuration Fault (OK/FLT)Number of Stored Faults Logged (0 to 10)


Appendix B104


Interface Status

Command:Response:

<add/ITXS_'cr'>add/ITXS_'cr'FSYN_xxx'cr'TXD_xxx'cr'PLL_xxx'cr'CLK_xxx'cr'FIFO_xxx'cr'INT_xxx'cr'DF_xxx’cr’VSYN_xxx’cr”IF’SFLT_xx'cr''lf']

Frame Sync Lock (OK/FLT)Transmit Data (OK/FLT)Transmit Synthesizer PLL Lock (OK/FLT)Transmit Clock Activity (OK/FL)Transmit FIFO (OK/FLT)Interface Module (OK/FLT) Data Format (OK/FLT)Video Frame Sync (OK/FLT)Number of Stored Faults Logged (0 to 10)

Common Equipment Status

Command:Response:

<add/CES_'cr'>add/CES_'cr'M&C_xxx'cr'BAT_xxx'cr'+5_xxx'cr'+12_xxx'cr'-12_xxx'cr'MODE_xxxxxx'cr'SFLT_xx'cr''lf']

Monitor & Control Module (OK/FLT)Battery/Clock (OK/FLT)+5V Power Supply (OK/FLT)+12V Power Supply (OK/FLT)-12V Power Supply (OK/FLT)Mode (LOCAL or REMOTE)Number of Stored Faults Logged (0 to 10)

The common equipment status command causes a block of data to be returned which indicates the status of the common equipment.

Bulk Consol Status

Command:Response:

<add/BCS_'cr'>add/BCS_p1,p2,p3, . . . pn'cr''lf']

This bulk consol status command causes bulk mod status to be returned. To reduce the length of the response, message parameter data are returned without identifiers. However, parameter identification can be determined by order of return. Each status parameter is terminated with a ',' (comma) except for the last parameter which has the standard message termination sequence ('cr''lf']). Most of the data returned is formatted the same way as the single command status request (refer to the appropriate portions of this document in preceding sections). Additional configuration status of new options and features will always be appended to the end.

Parameter Number

1

2

3

4

5

Parameter Name(Command Reference)

MODEM REMOTE/LOCAL mode .

Modulator RF output (ref. 'RF_' command).

Modulator IF frequency (ref. 'MF_' command).

Modulator rate (ref. 'MR_' command).

Modulator rate (ref. 'ASR_' command).

Description

p1 = n, where 'n' is '0' (LOCAL) or '1' (REMOTE).

p2 = n, where 'n' is '0' (off) or '1' (on).

p3 = nnn.nnnn, IF frequency in MHz.

p4 = nnnn_mmm.mmmmmm, code rate/data rate in Mbps.

p5 = nnnn_mm.mmmmmm, code rate/symbol rate in Msps.



Bulk Consol Status(continued)

Parameter Number

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20


Modulator power offset (ref. 'MPO_' command).

Modulator output power level (ref. 'MOP_' command).

Scrambler enable (ref. 'SE_' command).

Transmit TX Output Power-up Configuration (ref. 'TXPU_' command).

Carrier only mode (ref. 'COM_' command).

Modulator Type(ref. “MT_” command).

Transmit clock phase(ref. 'TCP_' command).

Transmit data phase (ref. 'TDP_' command).

Transmit data phase (ref. 'TDF_' command).

Transmit 2047 pattern generator (ref. 'ISP_' command).

Transmit clock phase (ref. 'SYNC_' command).

DVB Framing Type (ref. 'TDVB_' command).

Modulator Spectrum Rotation (ref. 'MSR_' command).

Reserved.

Reserved.

Description

p6 = snn.n, transmitter output power level in dBm.

p7 = snn.n, transmitter power offset in dBm.


p9 = n, where 'n' is '0' (last) or '1' (off).

p10 = n, where 'n' is '0' (Off), '1' (Dual),' 2' (Offset), or '3' (Center).

p11 = n, where ‘n’ = ‘0’ (DVB-1) or ‘1’ (DVB-2)

p12 = n, where 'n' is '0' (NRM), '1' (INV), or '2'.

p13 = n, where 'n' is '0' (NRM) or '1' (INV).

p14 = n, where 'n' is '0' (None), '1' (Data stable), or '2' (AIS).


p16 = n, where 'n' is '0' (EXT), '1' (DATA), or '2' (AUTO).

p17 = n, where n = '1' (188), '2' (187), or '3' (NONE).

p18 = n, where 'n' is '0' (NRM) or '1' (INV).


Appendix B106


Bulk Consol Status(continued)

Parameter Number

21

22

23 to 32

33


Interface ID (ref. 'INID_' command).

Interface clock Mode(ref. 'ICLK_' command).

Interface specific

TX Clock Activity Action(ref. “TCAA”command).

Description

p21 = 'xxxxxxx', where xxxxxxx = Interface type.

p22 = n, where n = '0' (Serial) or '1' (Parallel).

p33 = n, where n = ‘0’ (Fault), ‘1’ (Alarm).

Note : Parameters 23 through 27 of the BCS command are displayed for a specific installed interface card such as an RS-422 or ASI/RS-422.

Bulk Consol. Status Faults

Command:Response:

<add/BCSF_'cr'>add/BCSF_abcdefghijklmnop'cr''lf']

This command causes all mod fault status to be returned. To reduce the length of the response, fault status is embedded into the bit structure of the characters that are returned. Faults are indicated by a binary 1 in the designated bit position. Additional fault status of new options and features will be appended to the end or use existing reserved bits.

Character 'a': Modulator fault status character 1.Bit 6 = 1 always.Bit 5 = Modulator module fault.Bit 4 = RF output status, actual not programmed status(1 = on, 0 = off).Bit 3 through Bit 0 = Binary representation (0 to 10) of the number of modulator stored faults.

Character 'b': Modulator fault status character 2.Bit 6 = 1 always.Bit 5 = IF Synthesizer.Bit 4 = Data Clock Synthesizer.Bit 3 = I Channel.Bit 2 = Q Channel.Bit 1 = AGC Level.Bit 0 = Configuration.

Character 'c': Modulator fault status character 3.Bit 6 = 1 always.Bit 5 = IF module.Bit 4 through Bit 0 reserved.



Bulk Consol. Status Faults(continued)

Character 'd': Interface transmit side faults character 1.Bit 6 = 1 always.Bit 5 = reserved.Bit 4 = reserved.Bit 3 through Bit 0 = Binary representation (0 to 10) of the number of interface transmit side stored faults.

Character 'e': Interface transmit side faults character 2.Bit 6 = 1 always.Bit 5 = Frame Sync Lock.Bit 4 = Transmit Data Valid.Bit 3 = Transmit Clock Activity.Bit 2 = Transmit Synthesizer PLL Lock.Bit 1 = Transmit FIFO.Bit 0 = Interface module fault

Character 'f': Interface transmit side faults character 3.Bit 6 = 1 always.Bit 5 through Bit 0 reserved.

Character 'g': Common equipment fault status character 1.Bit 6 = 1 always.Bit 5 = reserved.Bit 4 through Bit 0 = Binary representation (0 to 10) of the number of common equipment stored faults.

Character 'h': Common equipment fault status character 2.Bit 6 = 1 always.Bit 5 = Battery/Clock.Bit 4 = +5V power supply.Bit 3 = +12V power supply.Bit 2 = -12V power supply.Bit 1 = Monitor & Control Module.Bit 0 = reserved.

Change Status Command:Response:

<add/CS_'cr'>add/CS_x'cr''lf']

Where 'x' = '@' = NO change since last BCS_ and

BCSF_ polls.'A' = BCS_ response has changed since last

BCS_ poll.'B' = BCSF_ response has changed since

last BCSF_ poll.'C' = Both responses have changed since

last BCS_ and BCSF_ polls.

This command indicates that a change has or has not occurred on either the BCS_ or the BCSF_ response since the last BCS_ or BCSF_ poll.


Appendix B108


Equipment Type

Command:Response:

<add/ET_'cr'>add/ET_tttttttt_xxx.yyy.zzz'cr''lf']

Where:tttttttt = Equipment type.xxx.yyy.zzz = Software version.This command returns the equipment type and the software version of the addressed device.

Monitor & Control Firmware Information

Command:Response:

<add/MCFI_'cr'>add/MCFI_'cr'VER_xxx.yyy.zzz'cr'FW/nnnnnn-ddr'cr'mm/dd/yyyy'cr''lf']

Where:xxx.yyy.zzz = Software version number

(0.0.0 to 999.999.999).nnnnnn = Firmware number (0 to 999999).dd = Firmware dash number (0 to 99).r = Firmware revision (-, or A to Z).

Boot Firmware Information

Command:Response:

<add/BFI_’cr’>add/BFI_’cr’Ver:_xxx_yyy.zzz’cr’FW/nnnnnn-ddr'cr'mm/dd/yyyy'cr''lf']

Where:xxx.yyy.zzz = Software version number

(0.0.0 to 999.999.999).nnnnnn = Firmware number (0 to 999999).dd = Firmware dash number (0 to 99).r = Firmware revision (-, or A to Z).

Interface FirmwareInformation

Command:Response:

<add/IFI_’cr’>add/IFI_’cr’Ver:_xxx_yyy.zzz’cr’FW/nnnnnn-ddr'cr'mm/dd/yyyy'cr''lf']

Where:nnnnn = Firmware number (0 to 65535)d = Firmware dash number (0 to 99)rr = Firmware revision (-, or A to ZZ)

Encoder Firmware Information (EFI)

Command:Response:

<add/EFI_’cr’>add/EFI_’cr’FW/nnnnn-drr’cr’Mm/dd/yyyy’cr’lf’]


Reed-Solomon Firmware Information(RSFI)

Command:Response:

<add/RSFI_’cr’>add/RSFI_’cr’FW/nnnnn-drr’cr’Mm/dd/yyyy’cr’’lf’]


Interface Firmware Information(As Required))

Command:Response:

<add/IFI_’cr’>add/IFI_’cr’FW/nnnnn-drr’cr’mm/dd/yyyy’cr’’lf’]


Modem Options/Misc. Information

Command:Response:

<add/MOI_'cr'>add/MOI_'cr's,OEM_LCD'cr's,16QAM'cr's,8PSK'cr'‘lf’]

Where: s = 0 (Not Installed, Not Upgradable),- = (Not Installed, FAST Upgradable), + = (Installed).

(- or +) OEM LCD option(- or +) 16QAM Code Rate option(- or +) 8PSK Code Rate option


109Stored Faults

Stored Faults Information on stored faults is returned when requested. If no stored fault exists for a given fault number, the words “NO Fault” will be returned instead of the normal time/date status information. The following symbols are commonly used to define the stored faults status commands:

# Fault number (0 to 9). “0” is the first fault stored

hh Hours in 24-hr. format

mm Minutes

ss Seconds

MM Month

DD Day

YY or YYYY Year

Table B-5 Stored Faults Commands And ResponsesModulator Stored Faults

Command:

Response:

<add/MSF_#'cr'>add/MSF_# hh:mm:ssMM/DD/YY'cr'MOD_xxx'cr'SYN_xxx'cr'DCS_xxx'cr'ICH_xxx'cr'QCH_xxx'cr'AGC_xxx'cr'IF_xxx'cr'CONF_xxx'cr''lf']

Module (OK/FLT)IF Synthesizer (OK/FLT)Data Clock Synthesizer (OK/FLT)I Channel (OK/FLT)Q Channel (OK/FLT)AGC Level (OK/FLT)IF Module Fault (OK/FLT)Configuration (OK/FLT)

Interface Transmit Side Stored Faults

Command:

Response:

<add/ITSF_#'cr'>add/ITSF_# hh:mm:ssMM/DD/YY'cr'FSYN_xxx'cr'TXD_xxx'cr'PLL_xxx'cr'CLK_xxx'cr'FIFO_xxx'cr'INT_xxx'cr''lf']DF_xxx’cr’’If’VSYN_xxx’cr’’If’

Frame Sync Lock (OK/FLT)Transmit Data (OK/FLT)Transmit Synthesizer PLL Lock (OK/FLT)Transmit Clock Activity (OK/FL)Transmit FIFO (OK/FLT)Interface Module (OK/FLT)Data Format (OK/FLT)Video Sync (OK/FLT)

Common Equipment Stored Faults

Command:

Response:

<add/CSF_#'cr'>add/CSF_# hh:mm:ss MM/DD/YY'cr'M&C_xxx'cr'BAT_xxx'cr'+5_xxx'cr'+12_xxx'cr'-12_xxx'cr''lf']

Monitor & Control Module (OK/FLT)Battery/Clock (OK/FLT)+5V Power Supply (OK/FLT)+12V Power Supply (OK/FLT)-12V Power Supply (OK/FLT)

Appendix B110


111Purpose

Appendix C Restoring TVRM75 Factory Defaults

This document supports all released versions.This document is applicable when the TVRM-75 Modulator Firmware is upgraded or when the operator initiates a hard reset from the front panel.

Purpose Due to the numerous transport stream output formats available on the Tiernan DVB Encoders, there are several default configurations for the TVRM-75 DVB Modulator. When the Encoder is configured with the default configuration, the Modulator must be configured with the appropriate default configuration so that the Modulator will operate properly with the Encoder. The default configuration is designed to optimize the Modulators performance and minimize configuration conflicts between the Encoder and the Modulator.

When the operator initiates a hard reset or when the firmware has been upgraded, the Modulator will reload its internal hardware defaults upon power-up. The Modulator must then be reconfigured with the appropriate Factory Default Configuration.

Appendix C112

Restoring TVRM75 Factory Defaults

Factory Default for ASI Data Input

Table C-1 presents the Factory Default Configuration for the TVRM-75 when used in an application where a Tiernan Encoder is sending an ASI transport stream to the Modulators ASI input.

For this application, configure the modulator with the default parameters shown in bold.

Table C-1 Factory Default Configuration for ASI Data Input

TOP MENU SUB MENU PARAMETER VALUE

CONFIGURATION MODULATOR TX-DR QPSK 5/6 8.448000Mbps

TX-SR QPSK 5/6 5.500187Msps

TX-IF FREQUENCY 70.000000MHz

TX-OUTPUT ON

TX-POWER LEVEL -10dBm

SCRAMBLER ON

CARRIER MODE NORMAL

INTERFACE TX CLOCK PHASE NORMAL

TX DATA PHASE NORMAL

2047 PATTERN OFF

TX SYNC SELECT CORR ON DATA

TX DATA FAULT NONE

TX CLK ACTIVITY ALARM

DVB FRAMING TYPE 188

SAVE CONFIGURATION 1 - 10

RECALL CONFIGURATION 1 - 10

FAULTS/ALARMS MODULATOR -------------------------------

TX INTERFACE -------------------------------

113Factory Default for ASI Data Input

COMMON -------------------------------

STORED

FAULTS/ALARMS MODULATOR NO FAULT

TX INTERFACE NO FAULT

COMMON NO FAULT

CLEAR???

UTILITY MODULATOR MOD POWER OFFSET 0.0dB

MOD SPECTRUM NORMAL

POWER UP TX-IF LAST KNOWN

MODULATOR TYPE DVB-2

INTERFACE INTERFACE TYPE ASI/RS-422

INTERFACE SELECT ASI

ASI LINK SELECT B-LINK (J3)

SYSTEM TIME/DATE SET CURRENT TIME

SET CURRENT DATE

REMOTE BAUD RATE 19200 NONE

REMOTE ADDRESS 1

REMOTE TYPE RS-232

TEST MODE STATUS - - - - - -

LAMP TEST PRESS ENTER TO TEST

DISPLAY CONTRAST 64


Appendix C114


Save the factory default configuration, cycle power to the unit, and verify that the factory default settings are displayed after power-up.

M&C MODULE FW FW/5613-1H

MASTER RESET HARD/SOFT

ALARM RELAY1 NORMAL

MOD OPTIONS REV EMULATION CURRENT VERSION

MOD OPTIONS - - +

MOD SERIAL # XXXXXXX

CONFIGURATION CODE - MOD

FACTORY SETUP NOT APPLICABLE

1 - Menu not available prior to firmware version 4.1.4Note: a no fault condition is indicated by a - sign and a fault condition is indicated by a + sign.


115Factory Default for Serial RS422 Data Input

Factory Default for Serial RS422 Data Input

Table C-2 presents the Factory Default Configuration for the TVRM-75 when used in an application where a Tiernan Encoder is sending a serial RS422 transport stream to the Modulators serial RS422 Data input.

For this application, configure the modulator with the default parameters shown in bold.

Table C-2 Factory Default Configuration for Serial RS422 Data Input

TOP MENU SUB MENU PARAMETER VALUE

CONFIGURATION MODULATOR TX-DR QPSK 5/6 8.448000Mbps

TX-SR QPSK 5/6 5.500187Msps

TX-IF FREQUENCY 70.000000MHz

TX-OUTPUT ON

TX-POWER LEVEL -10dBm

SCRAMBLER ON

CARRIER MODE NORMAL

INTERFACE TX CLOCK PHASE NORMAL1, 2

TX DATA PHASE NORMAL

2047 PATTERN OFF

TX SYNC SELECT CORR ON DATA

TX DATA FAULT NONE

TX CLK ACTIVITY ALARM

DVB FRAMING TYPE 188

SAVE CONFIGURATION 1 - 10

RECALL CONFIGURATION 1 - 10

FAULTS/ALARMS MODULATOR ----------------------------`

Appendix C116


TX INTERFACE ----------------------------

COMMON ----------------------------

STORED

FAULTS/ALARMS MODULATOR NO FAULT

TX INTERFACE NO FAULT

COMMON NO FAULT

CLEAR???

UTILITY MODULATOR MOD POWER OFFSET 0.0dB

MOD SPECTRUM NORMAL

POWER UP TX-IF LAST KNOWN

INTERFACE INTERFACE TYPE ASI/RS422

RS422 INT SELECT RS422

RTS TX-IF CNTRL OFF

RTS STATE NORMAL

CTS STATE NORMAL

DM STATE NORMAL

ST STATE NORMAL

TT STATE NORMAL

SYSTEM TIME/DATE SET CURRENT TIME

SET CURRENT DATE


117Factory Default for Serial RS422 Data Input

Save the factory default configuration, cycle power to the unit, and verify that the factory default settings are displayed after power-up.

REMOTE BAUD RATE 19200NONE

REMOTE ADDRESS 1

REMOTE TYPE RS-232

TEST MODE STATUS --------------------------

LAMP TEST PRESS ENTER TO TEST

DISPLAY CONTRAST 64

M&C MODULE FW FW/5613-1H

MASTER RESET HARD/SOFT

ALARM RELAY 3 NORMAL

MOD OPTIONS REV EMULATION CURRENT VERSION

MOD OPTIONS --------------------------

MOD SERIAL # XXXXXXX

CONFIGURATION CODE - MOD

FACTORY SETUP NOT APPLICABLE

1 - TX CLOCK PHASE is set to INVERT for Revision 01 Serial RS422 Data Cable.2 - TX CLOCK PHASE is set to NORMAL for Revision 02 Serial RS422 Data Cable.3 - Menu not available prior to firmware version 4.1.4Note - a no fault condition is indicated by a - sign and a fault condition is indicated by a + sign.


Appendix C118


119

Glossary

A AC switching power supply A pulse–width modulation, AC to DC converter. The TUI10 can receive and convert from 100 to 240V inputs at 50 to 60Hz.

Amp or Ampere The standard unit of measure for electrical strength defined as the amount of current that would be produced by an electromotive force of one volt acting through a resistance of one ohm.

ASI Asynchronous serial interface.

Auto–detecting The capability of a unit to automatically sense and set its configuration to match the operational parameters of an incoming signal.

Auto–ranging The capability of a power supply unit to accept variable voltage rates.

Auto–sensing The capability of a power supply unit to detect variable voltage rates.

B Baseband multimedia The non–modulated transmission of audio and video signals.

Baud Rate A measure of transmission speed over a transmission medium.

BIST Built–in–self–test.

Bit rate Refers to the number of bits of data transmitted over a given time period. See also bps.

BNC British Naval Connector—A type of connector featuring a locking pin on the female end and a cut–out groove for the pin on the male end.

bps A ratio of the number of bits of data transmitted to the number of seconds elapsed, expressed as bits per second.

120

Glossary

Buffer In data transmission, a buffer is a temporary storage location for information being sent or received. A buffer is usually located between two different devices that have different abilities or speeds for handling the data.

Buffer overflow Within a data buffering system, the condition occurring whenever the number of data bits entering the buffer exceeds the data capacity of the buffer.

Buffer underflow Within a data buffering system, the condition occurring whenever the number of data bits entering the buffer is not sufficient to maintain the buffer minimum output rate.

Built–in–self–test Evaluative procedures residing in the TUI10micro–controller which are used to provide diagnostic information regarding its operational state.

C C–band A portion of the electromagnetic spectrum used heavily for satellite transmissions. The uplink frequency is at 6GHz, and the downlink is at 4GHz. Traditional applications include voice communications, video conferencing, and broadcast TV and radio.

Cable Loss Loss of signal quality within cable, typically due to impedance as a result of excessive cable length or material construction.

Carrier Offset The frequency difference in Hertz measured between the programmed receive frequency and the actual frequency received.

Channel A single path for transmitting electric or electromagnetic signals.

CSA Canadian Standards Association—The Canadian counterpart of the U.S. Underwriters Laboratories.

D Data Typically refers to the information content of a signal including video, audio, graphic, or character–based information.

Data Bits Within a data packet, the bits which represent the information content of a packet. See also Data.

121

dB Decibel—A unit of measure of signal strength, usually the relation between a transmitted signal and a standard signal source. An increase of 3dB results in a doubling of the signal strength. An increase of 6dB results in a quadrupling of the signal strength. Conversely, a decrease of 3dB and 6dB results in a reduction in signal strength by one half and three quarters, respectively.

Decode To convert a coded signal into its original form.

Demod Demodulation. See Demodulate.

Demodulate To retrieve an electrical signal from a carrier signal or wave.

DS3 A commercial leased line that has the capacity to handle up to 44.763Mbps of digital information, as defined in ITU-T Rec. G.703.

dsec Deci–seconds—A measurement of time that is equal to 0.1 seconds. For example, 15dsec is equal to 1.5 seconds.

DTE Data Termination Equipment—A generic name for any device that generates information to be transmitted to another device or over a transmission system. For example, visual display units, computers, and office workstations.

DVB Digital Video Broadcast—A set of standards providing the specifications for transmission and reception of digitally processed broadcasting signals.

E E2 A commercial leased line that has the capacity to handle up to 8.448 Mbps of digital information, as defined in ITU-T Rec. G.703.

E3 A commercial leased line that has the capacity to handle up to 34.368 Mbps of digital information, as defined in ITU-T Rec. G.703.

Eb/No Eb=Energy per information bit; No=Noise energy per Hertz—Signal energy with respect to noise, expressed in energy per bit/noise in 1Hz bandwidth.

122

Glossary

F Fault A disturbance that impairs or disrupts normal operations.

FIFO First In, First Out—A type of data buffer.

FPGA Field Programmable Gate Array —A chip that can be reprogrammed for various uses.

Functional Block A component that performs a specific process within a unit. For example, an input controller is a functional block within the TUI10.

G G.703 ITU–T Recommendation G.703, “Physical/Electrical Characteristics of Hierarchical Digital Interfaces.”—An interface protocol used for terrestrial transmissions that operates at multiples of 64Kbps PCM.

H Hz Hertz—A measurement of frequency in cycles of a waveform occurring in one second. One hertz is one cycle per second.

HPA High power amplifier— A device which provides the high power necessary to transmit radio signals from an earth terminal to a satellite.

I IEC International Electrotechnical Commission—A Geneva–based organization that sets international electrical and electronics standards and includes national committees from over 40 countries.

IF Intermediate Frequency—1. A frequency to which a signal wave is shifted locally as an intermediate step in transmission or reception.2. The fixed frequency resulting from heterodyning the incoming signal with a signal from a local oscillator.

IFL Interfacility link—Typically refers to an interfacility link cable used to connect a low–noise block (LNB) to an IRD. Often this IFL carries power from the IRD to the LNB.

IF Looptest A diagnostic, troubleshooting, or operational test procedure designed to test operate satellite equipment by passing video and audio test signals through an encoder and satellite modulator, looping the output of the modulator to the input of the IRD, and monitoring the video and audio output of the IRD.

123

Impedance The total opposition of a device offers to the flow of alternating current. Measured in ohms and varies at different frequencies.

Integrated Receiver/Decoder Within a satellite downlink system, a piece of equipment used to demodulate and decode a transport stream.

IRD See Integrated Receiver/Decoder.

K Ku–band A portion of the electromagnetic spectrum in the 12GHz to 14GHz range. Used for satellites, employing 14GHz on the uplink and 11GHz on the downlink in support of such applications as broadcast TV for man–on–thešstreet interviews and other situations requiring a small, portable dish. Ku is also used in Direct Broadcast Satellite (DBS) systems, or Direct Satellite System (DSS).

Kbps Kilobits per second— A ratio of 1000 bits transmitted per second. For example, 10Kbps is equal to 10,000 bits transmitted per second.

KSps Kilosample or kilosymbol per second—A ratio of 1000 samples or symbols transmitted per second. For example, 10KSps is equal to 10,000 samples or symbols transmitted per second.

L L–band 1. Portion of the electromagnetic spectrum commonly used in satellite applications, with frequencies in the 390MHz to 1550MHz range.2. For an IRD, the frequency received from the LNB, existing in a range of 950MHz to 2050MHz.

LCD Liquid crystal display—A display technology that uses liquid crystals to form displayed characters.

LED Light emitting diode—A display technology that uses a light emitting diode to form displayed characters.

124

Glossary

Line Resolution The degree of sharpness of a displayed video image.

LNB Low Noise Block —A combination low noise amplifier and local oscillator used in some satellite downconverters.

LO Local Oscillator—A device within a frequency converter that is used to reduce or increase the frequency of the signal passed from the device input to output.

M Mbps Megabits per second—A ratio of 1,000,000 bits transmitted per second. For example, 15Mbps is equal to 15,000,000 bits transmitted per second.

MCPC See Multi–channel–per–carrier.

Mono Channel Referring to one audio output not contained in a stereo mix.

MPEG Moving Picture Experts Group—A joint committee of the International Standards Organization (ISO) and the International Electrotechnical Commission (IEC). 2. A series of hardware and software standards designed to reduce the storage requirements of digital video.3. A compression scheme for full motion video.

MPEG–1 Refers to ISO/IEC standards developed in 1991 by the ISO/IEC JTC1/SC29 WG11, Moving Picture Experts Group.

MPEG–2 Refers to ISO/IEC standards 13818 –1 (Systems), 13818–2 (Video), 13818–3 (Audio), 13818–4 (Compliance).

MTBF Mean time between failures—The length of time a user may reasonably expect a device or system to work before an incapacitating fault occurs.

Multi–channel–per–carrier Two or more video programs transmitted per digital transport stream.

125

N Network Management System A system designed to keep a network operating near maximum efficiency and to provide operator interface to the managed system for configuring, isolating and correcting faults, and monitoring operational performance.

Non–volatile, field–programmable memory A type of Flash ROM used to store configuration parameters. The ROM memory is configurable by the user but will not clear if the unit loses power.

NTSC 1. National Television Standards Committee of the Electronic Industries Association (EIA) — A committee which determines the video standards for broadcast in the U.S.2. The U.S. standard for video broadcast which uses a 3.57945 MHz subcarrier whose phase varies with the instantaneous hue of the televised color, and whose amplitude varies with the instantaneous saturation of the color. A single frame (picture) in the standard consists of 525 horizontal scanning lines. Frames are scanned at the rate of 30 frames per second.3. Used to describe the standard method of television transmission in the U.S., Canada, japan, Central America, and parts of South America.

O Ohm A unit of measure for resistance symbolized by the Greek letter omega Ω. Defined as the electrical resistance between two points of a conductor when a constant difference of potential of 1 volt, applied between these points produces in this conductor a current of 1 ampere, the conductor not being the source of any electromotive force.

Overhead A number of data bits used for error–checking, control, timing, and other communications functions that are inserted in the data stream as an additional to the individual data rates of the transport stream components. Overhead must be included when calculating the aggregate transport stream output data rate.

P PAL Phase Alteration Line—1. A broadcast television standard that uses a subcarrier which is alternated 90 degrees in phase from one line to the next to minimize hue errors in color transmission.2. The color television transmission standard used in Europe and other parts of the world.

126

Glossary

PAL–I A European color television transmission standard that uses a 4.43361875MHz subcarrier. A single frame in this standard consists of 625 scanning line, and frames are scanned at a rate of 25 frames per second.

PAL–M A European color television transmission standard that uses a 3.57561149MHz subcarrier. A single frame is this standard consists of 525 scanning lines, and frames are scanned at a rate of 30 frames per second.

PGCA A proprietary conditional access method used by Tiernan equipment.

PID Packet Identifier—Within a data packet, the bits used for its identification.

Pixel Picture Element—1. The smallest unit of area of a video screen image that can be turned on or off, or varied in intensity.2. The smallest division that makes up the raster scan line for a video display.

PSI Program Specific Information.

Q QPSK Quadrature Phase Shift Keying—The transmission of 2 bits per symbol, with each symbol being a phase range of the sine wave. In this fashion, a 2:1 compression ratio is achieved, resulting in a doubling of the efficiency with which a circuit is employed.

R RCD Remote Control Device—A computer terminal used to configure and monitor an encoder or an IRD without using the unit’s control front panel.

RF Input The user configured receive frequency parameter.

S Sample Rate The number of times per second that an analog signal is measured and converted to a binary number in order to convert the analog signal to a digital signal.

Satellite downlink frequency Within a satellite system, the frequency, either C–band or Ku–band, of the signal transmitted to the receiving dish.

127

SCPC See Single–channel–per–carrier

Single–channel–per–carrier One video program transmitted per digital transport stream.

SMPT Society of Motion Picture and Television Engineers. A standard for video connections. The TUI10 has a SMPTE-310 port that handles data rates of 19.39 Mbps and 38.78 Mbps.

SNMP Simple Network Management Protocol—A widely used network monitoring and control protocol. Data is passed from SNMP agents, which are hardware and/or software processes reporting activity in each network device (hub, router, bridge, etc.) to the workstation console used to oversee the network. The agents return information contained in a Management Information Base, which is a data structure that defines what is obtainable from the device and what can be controlled.

sps 1. Samples per second—A ratio of the number of times that an analog signal is measured and converted to a binary number to seconds elapsed, expressed as samples per second.2. Symbols per second—A ratio of symbols transmitted to seconds elapsed expressed as symbols per second. Commonly used to express the speed at which QPSK symbols are transmitted.

Stereo Pair Two audio signals consisting of sound reproduction of the same audio source.

Symbol In digital transmission, a recognizable electrical state that is associated with a signal element, which is an electrical signal within a defined period of time.

T TAD–1006 A Tiernan Communication, Inc. option module that allows an encoder to convert a composite analog video input into a serial digital video stream for inclusion in the transport stream output. The TAD–1006 provides this functionality automatically without need for special setup or configuration.

TDR600 A DVB–compliant, stand–alone MPEG–2 integrated receiver/decoder produced by Tiernan Communications, Inc. that can decode both 4:2:2 and 4:2:0 video formatting.

128

Glossary

TDR7 A DVB–compliant, stand–alone MPEG–2 integrated receiver/decoder produced by Tiernan Communications, Inc.

TDR777 A DVB–compliant, stand–alone MPEG–1 and MPEG–2 integrated receiver/decoder produced by Tiernan Communications, Inc.

TE6 A 4:2:2 MPEG–2 encoder produced by Tiernan Communications, Inc. that is backwards compatible with existing 4:2:0 integrated receiver decoders.

TTM A Tiernan Communications, Inc. internal multiplexer that allows an encoder to multiplex various inputs into a single MPEG–2 transport stream output.

TTM–2070/RA A Tiernan Communications, Inc. option module that allows an encoder to multiplex video, audio, and user data inputs into an MPEG–2 transport stream output with an ASI aggregate bit rate up to 53Mbps and an RS–422 aggregate bit rate up to 18Mbps.

U UL Underwriters Laboratories.

V VAC Volts AC.

VDC Volts DC.

VDE Verband Deutscher Elektrotechniker—The German counterpart of the U.S. Underwriters Laboratories.

Viterbi Code Rate Forward error– correction scheme.

Vpp Volts peak–to–peak.

129

Index

A AC power 28ASCII character format 95ASI

block diagram 84data interface 82defaults 90description 83factory defaults 112front panel menus 88receive output connectors, J6/J7 86remote commands 90RS-422 connector, J5 86specifications 85transmit input connectors, J3/J4 86user interfaces 86

assemblies, modulator 15

C commandsinterface 99modulator 97stored faults 109system 100

connectorsexternal 25rear panel 26transmit IF output, CP1 28

D data interfacesASI 82description 67installation 25removal 25RS-422 parallel/serial 68software requirement 68

data rates 14default settings 63defaults

factory 111modulator settings 63

130

Index

E emissions, CE 28external connections 25

F factory defaults 111ASI 112RS-422 115

faultscommand tree 19commands/responses 109stored 109

firmware upgrade, default settings 63front panel

configuration interface menu 40configuration menu 36configuration menu, overview 35configuration save & recall menus 43faults & alarms menu 45faults & alarms menus, overview 44features 30keypad 32LEDs 30main menu tree 34menu structure, overview 33operation, introduction 29stored faults & alarms menu 49utility factory setup menu 66utility interface menu 54utility interface menu, ASI/RS-422 57utility interface menu, RS-422 55utility menus overview 51utility mod options menu 64utility modulator menu 52utility system menu 59

G ground 28

H hard reset 63

131

I installationdata interfaces 24process 22

interface commands/responses 99

K keypad, front panel 32

L LEDsdescription 31front panel 30

M menusASI 88front panel, see front panelUtility Interface RS-422 Options 78

message structure 95command/response 96device address 96end character 97start character 96

modulatorcommands/responses 97default settings 63fault tree 19

P pinoutASI, RS-422 connector, J5 87auxiliary connector, J5 77DVB Interface, J3 74EIA530 serial interface, J4 75fault connector, J2 27remote, J1 26

power, AC 28

R rear panelconnectors 26

remote commandsASI summary 90RS-422 summary 80

remote operationmessage structure 95

132

Index

RS-422configuration 70data/timing criteria 73defaults 80factory defaults 115front panel menus 78overview 68remote commands 80specifications 70user interfaces 72

S software requirementsdata interfaces 68

specificationsASI 85modulator 15

symbol rates 14system commands/responses 100

T Tiernan CommunicationsProduct Support department contact information ix

TVRM75assemblies 15data rates 14emissions, CE 28external connections 25fault tree 19ground 28installation process 22overview 13specifications 15symbol rates 14unpacking 21

U unpacking the unit 21user interfaces 72

ASI 86DVB parallel/serial 72EIA-530 serial 75serial, J4 75

183

Before you call Product Support, please photocopy and complete the following Return Materials Authorization (RMA) Request form. This information enables the Product Support Engineer to understand, diagnose, and correct your product problems.

Tiernan Return Materials Authorization Request FormTelephone: 858.587.0252 Fax: 858.587.0257

Product Serial Number RMA # (obtained from Tiernan)

Contact Name Contact Phone Contact Fax Number

Company Name Contact Email Address

Return Shipping Address

System Configuration

Format: SD - Standard Definition HD - High Definition System Mode: SCPC MCPC

Firmware Version: ____________ Type of Failure: Intermittent Permanent

Encoder Configuration

Video: Digital Analog Format: PAL NTSC Other ________

Resolution: 1080I 720P 480P 704 544 352 SIF Chroma: 4:2:0 4:2:2

Frame Rate: __________________ Data Rate: Auto Manual If Manual: ________________

Audio: Digital Analog Number of Channels: _______ Aux Data: Number of Channels: ____

Mux: Ouput Rate________________ Local Rate ________________

Mod: Code Rate _______ Data Rate ______________

IRD Configuration

Input Source: QPSK ASI RS-422 SDI

If QPSK: RF Freq _______________ Data Rate ________________ Code Rate _______________

Video: SD HD Audio: Digital Analog Number of Channels: ____

Aux Data: Number of Channels: ____

Detailed Description of Failure

184

Documents

TVRM75 manual 505-003080-0001E_OBS