Training Manual PMUX

TRAINING ON TRAINING ON NOKIA DIGITAL TELECOMMUNICATION SYSTEMSNOKIA DIGITAL TELECOMMUNICATION SYSTEMS

DMRCDMRC

This document and the proprietary information it contains is for the internal use of Commtel Networks personnel and authorized recipients only

Commtel Networks Proprietary2

Basics of PDH

Section - 1

Nokia Digital Transmission System

Section - 2

Nokia Management System

Section - 3

TOPICS


Basics of Basics of PDHPDH

SECTION - 1


Packet databased services(IP, FR,...)

ATM layer

SDH higher order(HO =VC4 path)layer

Optical(wavelength)layer

SDH lower order(LO = VC12/VC3)layer

Voice (PSTN, cellular)and NB data services(64k & n*64k)

l - based connections

Fiber/ ductlayer

Data / information and voice applications

NETWORK LAYERS


Primary Access Layer (< 2Mbit/s)

Voice Circuits &Data Circuits

FIBRE OPTIC CABLE & MICROWAVE RADIO

STM- 1/4 Transport Layer

DWDM & STM- 16

Backbone Layer

PDH Network Management

System

SDH Network Management

System

SYSTEM LAYERS


Digital Telecommunication System Hierarchies

Plesiochronous Digital Hierarchy (PDH)

Synchronous Digital Hierarchy (SDH)

Plesiochronous Digital Hierarchies

Primary Order - 2 Mbit/s (2,048 Kbit/s)

30 x 64 Kbit/s Channels

Second Order - 8 Mbit/s (8,448 Kbit/s)

4 x 2Mbit/s Tributaries


Third Order - 34 Mbit/s (34,368 Kbit/s)



Fourth Order - 140 Mbit/s (139,264 Kbit/s)



PLESIOCHRONOUS DIGITAL HIERARCHY


Frame Structure for 2 Mbit/s (ITU-T G.704)

FRAME STRUCTURES


TS0 is used for internal data transfer across a 2 Mbit/s

connection (frame alignment, alarms and supervision data). Bits

2...8 of TS0 are replaced with the frame alignment signal

0011011 in every other frame. Frame alignment is considered

lost when the bit B2 in the received time slot TS0 is in error three

times in succession in those frames that do not contain frame

alignment signal.

Signaling information is transferred in time slot 16. TS16 can be used

for Channel Associated signaling. When used for CAS, it establishes a

64 kbit/s bus, which is divided into smaller paths keeping the

multiframe alignment signal as a reference point. The multiframe

consists of 16 successive frames, numbered 0...15. The multiframe

alignment signal 0000 indicates the beginning of the multiframe.

These four bits are located in bit locations 1...4 of time slot TS16 in

frame 0. The signalling bits ai, bi, ci, di (i=1...15) corresponding to

time slots TS1TS15

The frame length is 125 s, comprises 32 time slots, numbered 0...31. Each time slot contains 8 bits. Information relating to channels 1..30 is

inserted in time slots 1...15 and 17...31. Since the frame comprises 256 bits and its repetition rate is 8000 per second, the bit rate of

multiplexed signal is 2048 kbit/s.

FRAME STRUCTURES


2 Mbit/sMUX

8 Mbit/sMUX

34 Mbit/sMUX

140 Mbit/sMUX

140 Mbit/sMUX

34 Mbit/sMUX

8 Mbit/sMUX

2 Mbit/sMUX

PLESIOCHRONOUS DIGITAL HIERARCHY


Nokia Digital Nokia Digital Transmission Transmission

SystemSystem

SECTION - 2


19 NDM SUBRACK

T37870.01

19 NDM SUBRACK T37870.01


The subrack consists of a chassis, a motherboard, a front cover and mounting accessories for use when required.

The subrack chassis is made of stainless steel.

Cabling requires a space of at least 25 mm (or 0.5 U in IEC 19" rack) above and below the subrack.

The subrack must be situated in a weather-proof location, either indoors or in an outdoor cabinet. The subrack can be installed in 19" (450 mm) racks, see figure below. By using mounting accessories included in the product it can also be installed in 500 mm ETSI-type racks. Air deflectors can be mounted above and below the subracks as required.

The external battery voltages are connected to the subrack through either a NDM DC unit (NDU), NDM AC/DC Unit (NAU) or a Rack Power Supply Adapter (RPSA) via an NDM DC Adapter (NDA) in the subrack. Also previous rack specific DC adapters like Enhanced Power Supply Adapter 19" (EPSA 19") or DC-PSA can be used.

The subrack can house:

16 plug-in units (25 mm/5 T) + 1 Power Unit (39 mm 8T)

Units which comprise only one card and have no special requirements concerning unit location can be fitted into any of the four sections of the motherboard.

1U = 44.45 mm 1T = 5.08 mm



The motherboard of the subrack can be considered as being split into four sections. Each section consists of four unit locations.

The section borders are indicated with a dashed line in the figure above.

By using jumpers the sections can be joined to create larger sections.

The subrack allows installation up to 4 x DB2 Multiplexer.

The slot no. 17 is used for NDU/NAU.

It is therefore possible to split the 17- slot motherboard into two, three or four sections. 8 -slot motherboard can be split into two sections.



DB2B with 2 Ch. Units can be

installed in slot 1-4, 5-8, 9-12 & 13-

16.

DM2+ with 3 Ch. Units can be

installed in slot 1-4, 5-8, 9-12 and

13-15.



NDA T37884.01

NAU T37883.01

Power Supply Alternatives

Rack Power Supply Adapter (RPSA) used as the enclosure for RPM T37881.01and ALM T37884.01T37880.014

NDM DC Adapter (NDA), input voltage 24/48/60 Vdc, max. 10 A.Subrack interface for RPSA+RPM+ALM, DC-PSA or EPSA

T37884.013

NDM AC/DC Unit (NAU), input voltage 100-240 Vac, max. 3,6 A. NAU contains two AC/DC modules.T37883.012

NDM DC Unit (NDU), input voltage 24/48/60 Vdc, max. 10 A.T37882.011

DescriptionCode

NDU T37882.01



NOKIA DIGITAL

TERMINALMULTIPLEXEQUIPMENT

DM2+

TC 21116

NOKIA DM2 PRIMARY TERMINAL MULTIPLEXER


Key features

Fulfils the relevant ETSI Open Network Provision requirements for leased line networks.

Comprises a common multiplex unit (MUX) and a variety of tributary units (VF and data).

Allows adding enhanced features simply by adding tributary units, without having to upgrade the multiplex unit's existing software.

Has a time-division multiplexed bus structure (ITU-T G.704) that allows flexible utilisation of the equipment's transmission capacity.

Allows each individual VF or data channel to use any 64 kbit/s time slot, several time slots or only part of the capacity of one time slot. Allocation of time slots is independent of the physical placement of the unit.

With VF channel units, provides an analogue interface with signalling adaptations ranging from subscriber signalling to various types of junction line signalling. Supports both channel-associated and common channel signalling.

Allows the use of subscriber line testing in subscriber applications.

With data interface units, supports bit rates 0.3 kbit/s 1984 kbit/s in compliance with ITU-T V- and X- series Recommendations.

All units are managed through the multiplex unit's service interface. Most of the controls and settings can be done without any jumper modifications.

Software settings are used to set, for example, the following functions:- Time slot selections- Level settings- Impedance settings- Signalling and data interface parameters- Loopbacks- Alarm functions.

NOKIA DM2+ PRIMARY ORDER TERMINAL MULTIPLEXER


BASIC ARCHITECTURE OF DM2+

Functions of DM2

In the Transmit Direction are:

To Generate Tx Direction Clock Frequency of 2048 Kbit/s

Control the TDM occurring in the channel units

Form the Output Signal Frame

Generate the interface signal complying with ITU-T Recommendation G.703, as HDB3 line coded.

Functions of DM2

In the Receive Direction are: Convert the input signal complying

with ITU-T rec. G.703 to agree with equipment logic sections, disassembling the line code, generate the Rx direction clock signal.

Synchronise to the incoming signal frame

Control the demultiplexing occurring in the channel units

Monitor the error ratio of the received signal and recognise AIS.

Recognise Alarm Indication Signal (AIS)

VOICE

DATA

MUX

Management Alarms Measurement 2048 kbit/s interface Synchronisation 64 kbit/s data

Voice Signalling Data

Voice Units Include: VF units SUB/EXCH units SUB/SUB units

Data Units Include: V.28 units V.24 units V.11, V.35, X.21 units G.703 units G.704 units ISDN & ILT units

Dynacard Bus

Other Functions of DM2

Handles alarm indications using LEDs & Rack Alarm Lamps

Offers an auxiliary G.703 data interface which can be used, for example,9 64 Kbit/s data transfer9 Common channel signalling

Offers synchronisation interfaces (Tx & Rx clock)

Synchronise Multiplexing unit to external source



DATA HYBRID OF DM2+M Interface : Basically used for connecting Service Terminal or NMS to local microprocessor of DM2+

D Interface : Basically used to convey commands, controls to the equipment at the same stations with external 4 wire TMS bus

Data Hybrid : Interconnects M interface, D interface, Microprocessor of local MUX unit & TS0 free bits or TS1-31 which can carry service channel in the Main signal.

Data Hybrid Not In Use DI to 2M interface

MI, DI & Service Channel connected to each other

MI, Supervision Data of Service Channel & DYNACARD Bus interconnected



DM2+ SERVICE MENU


If the alarm message is Then.Power Supply Fault Check the voltages and ground connections

Installation Error Check that the units in the configuration have been installed with software installation. If not, install missing units. Another possible fault can be found in unit location strappings.

Missing Unit Check that all the units in the configuration are firmly in their slots

Equipment Reset Wait a moment alarm typically clears by itself

No incoming 2M signal Check the incoming main signal cable connection and line system attenuation.

AIS 2M Check the far-end transmitter, possible higher order multiplexers and line system for faults.

Frame Alignment Lost Check the far-end transmitter, possible higher order multiplexers, line system, CRC settings and network synchronization for faults.

BER>1E-3 Check the far-end transmitter and line for faults.

CRC Multiframe Lost Check the CRC setting. Both ends of the point-to-point connection must have CRC check either ON or OFF.

Far-end Alarm Check the far-end for alarms and act accordingly.

DM2+ TROUBLE SHOOTING


NOKIA DIGITAL

BRANCHING MULTIPLEXEQUIPMENT

DB2

TU 24001/2TU 24010/1

NOKIA DB2 PRIMARY DROP/INSERT MULTIPLEXER


Key features

Comprises of B2 & X2 units and a variety of tributary units (VF and data).

Can be used as Drop/Insert in un-protected or Loop Protected equipment

Cross connection granularity : n x 8 kbit/s

Allows adding enhanced features simply by adding tributary units, without having to upgrade the multiplex unit's existing software.

Has a time-division multiplexed bus structure (ITU-T G.704) that allows flexible utilisation of the equipment's transmission capacity.

Allows each individual VF or data channel to use any 64 kbit/s time slot, several time slots or only part of the capacity of one time slot. Allocation of time slots is independent of the physical placement of the unit.

With VF channel units, provides an analogue interface with signalling adaptations ranging from subscriber signalling to various types of junction line signalling. Supports both channel-associated and common channel signalling.

With data interface units, supports bit rates 0.3 kbit/s 1984 kbit/s in compliance with ITU-T V- and X- series Recommendations.

All units are managed through the multiplex unit's service interface. Most of the controls and settings can be done without any jumper modifications.

Software settings are used to set, for example, the following functions:- Time slot selections- Level settings- Impedance settings- Signalling and data interface parameters- Loopbacks- Alarm functions.



BASIC ARCHITECTURE OF DB2B

Functions of DB2B

B2 unit:

Provide 2 x 2 Mbit/s interfaces (Direction #1 & #2)

Perform the settings and control coming via service interface and command bus

Controls equipment in fault condition

Generate Master clock, synchronised to incoming signal (Rx1..3) or external

Functions of DB2B

X2 unit:

Provide 1x2 Mbit/s interface or access to time slots via channel units

Realises Timeslot connections to Tx direction in compliance with Branching tables

Synchronisation interface for external clock and provide equipment clock for other equipment


VOICE

DATA X2

Management Alarms Measurement 2048 kbit/s interface Synchronisation

Voice Signalling Data

Voice Units Include: VF units SUB/EXCH units SUB/SUB units

Data Units Include: V.28 units V.24 units V.11, V.35, X.21 units G.703 units G.704 units ISDN & ILT units

Dynacard Bus

Handles alarm indications using LEDs & Rack Alarm Lamps

Any direction (1,2 or 3) can be set for In use or Not in usemode

Control Data Hybrid


B2




Functional Block Diagram Of DB2B


UN-PROTECTED DB2B DB2B with CH Units

Channels can be branched from both directions of Main branchwithout limitation. The types of branching are:

Through-connection between interfaces 1 & 2

Arrangement of channels between interfaces 1 & 2

Branching in direction 1-3

Branching in direction 2-3

VF common channels

Digital common channels

NOKIA DB2B CONFIGURATION OPTIONS


The Loop Protection philosophy involves developing a network architecture in the form of a physical loop, and being able to dynamically branch channels in either a clockwise or anticlockwise direction so as to avoid equipment failures or Fibre break in one direction and maintain high system availability.

The DB-2LP dynamically selects an available path through the loop configuration.

Loop Protection is provided on 64kbps channel level.

The protection is channel specific and, depending on the transmission capacity available and the use of the connections, concern all or some of the channels in the system.

NOKIA DB2B CONFIGURATION DB2LP


B2 (2 3)

S0C0

S2C2

S1 C1

B1 (1 3)

B0 (1 2)

Y1/2/3M1/2



DATA HYBRID OF DB2BM Interface : Basically used for connecting Service Terminal or NMS to local microprocessor of DM2+

D Interface : Basically used to convey commands, controls to the equipment at the same stations with external 4 wire TMS bus

Data Hybrid : Interconnects M interface, D interface, Microprocessor of local MUX unit & TS0 free bits which can carry service channel in the Main signal.

The Data Channels interfaces are formed byfree bits b5-b8 of Timeslot 0 of each 2M directions.

Data channel operates on sampling principle at 4,8, or 16 KHz, depending on the number of bits used.

Usage and the sampling rate are set individually for each 2M data channel interface.

DH ON enables both DI & MI permanently



MI : Maintenance Interface DI : Data Channel PA1/PA2: Programmable

Alarm Outputs

RLSS: Received 2.048 Mbit/s Signal, 120 ohm

RLSU: Received 2.048 Mbit/s Signal, 75 ohm

RLSC: Received 2.048 Mbit/s signal Common

RLSG: Received 2.048 Mbit/s signal Ground

TLSS: Transmitted 2.048 Mbit/s Signal, 120 ohm

TLSU: Transmitted 2.048 Mbit/s Signal, 75 ohm

TLSC: Transmitted 2.048 Mbit/s signal Common

TLSG: Transmitted 2.048 Mbit/s signal Ground



DB2 SERVICE MENU


If the alarm message is Then.

Power Supply Fault Check the voltages and ground connections

Installation Error Check that the units in the configuration have been installed with software installation. If not, install missing units. Another possible fault can be found in unit location strappings.

Missing Unit Check that all the units in the configuration are firmly in their slots

Equipment Reset Wait a moment alarm typically clears by itself

No incoming 2M signal Check the incoming main signal cable connection and line system attenuation.

AIS 2M Check the far-end transmitter, possible higher order multiplexers and line system for faults.

Frame Alignment Lost Check the far-end transmitter, possible higher order multiplexers, line system, CRC settings and network synchronization for faults. Check also the allocation of MCB andLCB and buffers. The main branch of Master must be in buffered mode.

BER>1E-3 Check the far-end transmitter and line for faults.

CRC Multiframe Lost Check the CRC setting. Both ends of the point-to-point connection must have CRC check either ON or OFF.

Far-end Alarm Check the far-end for alarms and act accordingly.

Fault in Tx Check the outgoing signalling bits-forbidden combination (0000) detected.

Run Diagnostics Test Run the RUNTEST (TOP,9,7) and check the handbook for meaning of error code

DB2 TROUBLE SHOOTING


NOKIA Dynamic Node

EquipmentDN2

NOKIA DN2 Dynamic Node Equipment


DN2 Service Menus


NOKIA CHANNEL UNITS

Data Interface Unit : DIU 0.6..19.2k, V.28/V.11

Subscriber/Exchange Channel unit : SUB/EXCH

Subscriber/Subscriber Channel unit : SUB/SUB

Voice Frequency Channel unit : VF E&M Data Interface Unit : DIU 64k, X.21


DATA INTERFACE UNIT

DIU 19.2K, V.28/V.11

TU 24021.01

NOKIA CHANNEL UNITS


DIU 19.2k, V.28 CHANNEL UNIT : TU 24021

The 5T size card consists of 8 x V.28/V.11, Asynchronous interfaces.

The DIU channels are configurable for different Async. data rates such as 600, 1200, 2400, 4800, 9600, 19200 bit/s.

The DIU channel uses 1,2,4 or 8 bits of timeslot for data communication depending upon the type of coding and data rate.

Each card has on-board DC/DC convertor & operates in range of 20 VDC to 72 VDC.

The DIU card has 2 Mbit/s bus interface for establishing connection to DM2, DB2B or DN2 equipment.

All the channels are fully programmable for following characteristics:

9 Channel Use9 Channel time slot allocation 1-15 & 17-319 Operating Mode Selection: Sampling, Sampling & Filtering, Transition Coding9 Channel Loopbacks9 Loopback Timeouts9 Monitoring of data

The typical applications are:

9 SCADA RTU & Master connectivity9 Data communication for other type of applications

Data Interface Unit : DIU 19.2k, V.28/V.11 - TU 24021.01


8 x V.28/V.11, Asynchronous channels

Tx, Rx & Gnd signals

Operating Voltage: -20 -72 VDC

Power Consumption < 4 W



OPERATING MODES

CCITTR.111

Use Bit masking to define the bits to be used for data transmission (mask with 1 for using and 0 for not using).

Bit mask is ANDed with actual data bits.



LOOPBACKS

Loop to Interface (L1): Data coming from V.28 interface looped back to interface

Loop to equipment (L2): Data coming from designated timeslot of the channel is looped back to MUX.



DIU 19.2k, V.28: SERVICE MENU


Power Supply Fault

Step 1: - Check the incoming voltage level and the unit operating voltages (TOP,7,9,u,1..). Check for abnormality in

measurement. - Calibrate the voltages.

Step 2: If the above measures do not solve the problem. Remove the unit and re-inset back into designated slot

Step 3: If the problem still persists, then there might be possibility of power supply section failure.

Channel fault / Memory Fault

Step 1: Conduct the testing of channels and memory using ST menu TOP,9,9,u,

Forced Indication

Step 1: - Check that either RED or ORANGE LEDs are not FORCED ON. - Using ST menu TOP,5,9,u,2,1 the LEDs can be normalised which should remove alarm

TROUBLE SHOOTING OF DIU 19.2K V.28 UNIT


DATA INTERFACE UNIT

DIU X.21

Nokia Data Interface Units


Data Interface Unit : DIU X.21

DIU X.21 CHANNEL UNIT :

The 5T size card consists of 5 x X.21, Synchronous interfaces (DCE/DTE)

The DIU channels supports to operate in DCE & DTE mode with configurable for different Sync. data rates of 48, 56 & 64 kbit/s. The DIU channel control signals are transferred in Timeslot 16. The control signals received from far end (in TS16) can be filtered for 12 ms.

The Synchronisation for PMUX can be generated from incoming 48/56/64 kbit/s clock provided by the terminal equipment.


The DIU card has 2 Mbit/s bus interface for establishing connection to DM2, DB2B or DN2 equipment.


9 Channel Use9 Channel time slot allocation 1-15 & 17-319 Operating Mode Selection: DCE/DTE, Inverted/Not Inverted Tx Clk.9 Channel Loopbacks9 Loopback Timeouts


9 Router X.21 Serial WAN interface extension

9 SCADA RTU & Master connectivity

9 Data communication for other type of applications


The DATU-E block handles functions associated with data transmission on five channels. 9 It picks up from the databus the data

out of time slot allocated for the data channel concerned, eight data bits at a time and places data on X.21 line interface at designated rate (48/56/64 kbit/s)

9 The data is received from X.21 line and transmitted in octets into the time slot allocated for the data channel concerned.

9 In DCE mode, contra direction, the timing 114 & 115 are extracted from T2M & R2M signals,respectively.

9 In DTE mode, co direction data received from DTE is synchronised with timing received from DTE. Buffering (BUF1 & BUF2) is used for correction of deviation between external & internal timing (local clock slips). This deviation is corrected by slips in buffer.

The SBUIP circuit transfers control signal between terminal and the MUX unit. The processor reads states of signal from SBUIP circuit at certain intervals and transfers to

Data Interface Unit : DIU X.21


LOOPBACKS

Loop to Interface : Data coming from X.21 interface looped back to interface

Loop to equipment : Data coming from designated timeslot of the channel is looped back to MUX.

INTERFACE LOOPBACK EQUIPMENT LOOPBACK

Data Interface Unit : DIU, X.21


DIU X.21 Service Menu


Trouble Shooting Of DIU X.21 Unit

Power Supply Fault Step 1:

- Check the incoming voltage level and the unit operating voltages (TOP,7,9,u,1..). Check for abnormality in measurement.

- Calibrate the voltages (TOP 9,9,u,1..).



No incoming 64 k signal This alarm is due to missing received signal or the received clock signal is missing

Step 1: Check that data cable is connected properly or DTE device is not in power off condition.

Buffer overflow (underflow) This alarm appears when slip alarm limit has exceeded.

Step 1: - Ensure that slips are within allowed limits.- Disable alarm using ST menu TOP,6,9,u,3,n,4,1,1/2,2 Tx/Rx buffer slip alarm disable

Forced IndicationStep 1: - Check that either RED or ORANGE LEDs are not FORCED ON. - Using ST menu TOP,5,9,u,1 the LEDs can be normalised which should remove alarm


SUBSCRIBER EXCHANGE CHANNEL

UNIT

SUB/EXCH

TU 21216

SUBSCRIBER EXCHANGE CHANNEL UNIT


SUBSCRIBER EXCHANGE CHANNEL UNIT : TU 21216

The 5T size card consists of 6 x 2W FXO (Foreign Exchange Office) interfaces.

All the channels are fully programmable for following characteristics:9 Channel Use9 Channel time slot allocation 1-15 & 17-319 Level setting9 Metering Signalling Logic

The application is to extend the Analogue extension of PABX to far end.

Each card has on-board DC/DC convertor & operates in range of 20 VDC to 72 VDC. The SUB/EXCH card has 2 Mbit/s bus interface for establishing connection to DM2, DB2B or DN2 equipment.



KEY FEATURES

Impulse (Rotary)/ DTMF dialling

Ground Key function regeneration

Forwarding of Polarity Reversal information to SUB/SUB unit

Loop forwarding to SUB/SUB unit

Ringing detection

Metering (12 KHz)

Protection against hazardous voltages (mains voltages and residual voltages due to lightning) by a protection circuitry

Compliant to ITU-T G.712, G.713 & Q.552 with some exceptions

Minimum Voltage (the Criterion voltage at exchange) : - 43 VDC



SUB/EXCH SERVICE MENU


SUB/EXCH Default Settings



AIS Timeslot 16 alarm

Step 1: Check which channel receives this alarm.

Step 2: Ensure that the timeslot allocated for the channel is dropped from Dir. 1 or 2 in case of DB.

Step 3: Ensure that corresponding channel at far end station is ON and the timeslot allocated for the channel is dropped from Dir. 1 or 2 in case of DB.

Blocked from Use or Timeslot Queuing (qn)

Step 1: Check that same Timeslot is not allocated to other channel of same unit or channels of other units

Step 2: Allocate another vacant timeslot. In case of DB-2B, the dropped timeslot can be different from Dir. 1 or 2.

Sometimes this alarm appears immediately after allocation of timeslot, however in case of non-conflict, the alarm clears automatically.

TROUBLE SHOOTING OF SUB/EXCH UNIT


Power Supply Fault

Step 1: Check the criterion voltage (B1) which should be > -43 VDC.Generally incoming supply voltage from charger is used as Criterion voltage source and hence check the incoming supply voltage.

Step 2: If the voltage is correct then calibrate the B1 voltage using ST/MSTE (TOP,7,9,u,1,2,1)

Fault in Current Loop

Step 1: Ensure that DC current in subscriber loop is not excessive.

Equipment Fault

- This indicates fault in EEPROM memory or Unit Power Supply.

TROUBLE SHOOTING OF SUB/EXCH UNIT


SUBSCRIBER SUBSCRIBER CHANNEL

UNIT

SUB/SUB

TU 21206

NOKIA CHANNEL UNITS


SUBSCRIBER SUBSCRIBER CHANNEL UNIT : TU 21206 The application is:

The 5T size card consists of 6 x 2W FXS (Foreign Exchange Subscriber) interfaces.

9 To drop the Analogue extension of PABX with SUB/EXCH at far end

9 To drop the Analogue extension of PABX via 2.048 Mbit/s link to Digital Exchange



9 To setup Hot Line connectivity between two stations


The SUB/SUB card has 2 Mbit/s bus interface for establishing connection to DM2, DB2B or DN2 equipment.

The SUB/SUB unit requires external ringing supply from RING GENERATOR for extending ring to subscriber telephone

unit. All the channels are fully programmable for following characteristics:

9 Channel Use9 Channel time slot allocation 1-15 & 17-319 Level setting9 Metering Signalling Logic



KEY FEATURES

Impulse (Rotary)/ DTMF dialling

Ground Key function regeneration

Forwarding of Polarity Reversal information to SUB/SUB unit

Ring forwarding to subscriber telephone unit

Metering (12 KHz)

Protection against hazardous voltages (mains voltages and residual voltages due to lightning) by a protection circuitry

Compliant to ITU-T G.712, G.713 & Q.552

Minimum Voltage (the Criterion voltage at exchange) : - 43 VDC



SUB/SUB SERVICE MENU










TROUBLE SHOOTING OF SUB/SUB UNIT


Power Supply Fault

Step 1: Check the criterion voltage (B1) which should be > -43 VDC.Generally incoming supply voltage from charger is used as Criterion voltage source and hence check the incoming supply voltage.

Step 2: If the voltage is correct then calibrate the B1 voltage using ST/MSTE (TOP,7,9,u,1,2,1)

Installation Error

- This alarm is due to software incompatibility with hardware.

Step 1: Ensure that software version is compatible with hardware.

Step 2: Ensure that two units have not been accidentally inserted into each others slot in subrack.

Equipment Fault

- This indicates fault in EEPROM memory or Unit Power Supply.

TROUBLE SHOOTING OF SUB/SUB UNIT


RING GENERATOR UNIT

RING GEN

T37885.02

RING GENERATOR UNIT


Ring Generator : T37885.01/2

The 5T size card consists provides ringing voltage to subscriber telephone units.

The Ring generator is interfaced with SUB/SUB unit via subrack backplane.

The Ring Generator is activated by REN signal from SUB/SUB signal or alternatively RING generator can be kept ON continuously by setting Keyed jumper.

The Ring generator output voltage is 75 Vrms or 90 Vrms, selectable by jumper setting.

The Ring generators ringing frequency can be selected as 25 or 50 Hz as shown below:

RING GENERATOR UNIT


VOICE FREQUENCY CHANNEL

UNIT

VF E&M

TU 21236.00

NOKIA CHANNEL UNITS


VF E&M CHANNEL UNIT : TU 21236.00

The 5T size card consists of 8 x VF 2W or 4W interfaces.


Each VF interface has one/two E&M DC signalling channel.

The VF card has 2 Mbit/s bus interface for establishing connection to DM2, DB2B or DN2 equipment.


9 Channel Use

9 Channel time slot allocation 1-15 & 17-31

9 Two wire or Four wire VF interface selection

9 Level setting, separately for two wire or four wire interfaces

9 Signalling Logic

9 Balance impedance


9 Extension of PABX VF trunks

9 Legacy voice interface 2W / 4W

9 Omnibus Conference communication channel

Voice Frequency Channel unit : VF E&M


VF E&M SERVICE MENU










TROUBLE SHOOTING OF VF E&M UNIT


Nokia Nokia ManagementManagement

SystemSystem

SECTION - 3


NMS/10 BASIC CONCEPTS

Transmission business is very fragmented

9 A lot of different kind of nodes and interface cards

9 New versions and variants are released very frequently

NMS/10 manages all Nokia transmission equipment, and selected 3rd party nodes

Very flexible System Architecture

Affordable and easy to use PC based Management tool

Allows Fast Implementation of Networks

Scalable Solutions

Uses Industry standard Interfaces (SNMP)

Ability to manage the DCN (FM)

NOKIA NMS/10 C6.1


NMS/10 - COMPETITIVE ADVANTAGES

PCPC--BASEDBASED

Reliable and secure well-known operating environmentPrice effectiveness

Fast delivery - standard PC can be usedCheap system support & low training costs

SCALABILITYSCALABILITY--Build as you go Build as you go

Safe investment: Nokia develops NMS/10 system for future

MODULARMODULARARCHITECTUREARCHITECTURE

Fast and easy integration of management support for new network elements as they are released

FULL EMS FUNCTIONALITY :FULL EMS FUNCTIONALITY :

Entry level network management system for small and medium size transmission networks - fast roll-outFM, CM and PM for all Nokia transmission elements

SIMPLESIMPLE

Easy to install, commission and use (familiar Windows environment) Training investments minimised

NOKIA NMS/10 C6.1


NOKIA NMS/10 C6.1 : HP OPENVIEW GUI

IP networksIP networks Transmissionnetworks

Transmissionnetworks

Integrated management of transmission and IP networks using the platform from worldwide market leader in network management platforms

NOKIA NMS/10 C6.1


Distributed system:

9 Management Consoles9 Management Station9 Management Agents

Multipurpose Agents are interfaces to the managed

networks

Management Station includes all centralised functions (DB,

UI)

Management Station can be accessed remotely using

Management Consoles

Remote use of Node Managers requires WTS - node

managers are to be installed into agents or a separate server

Internet Access to Agents and Alarms NMS/10 Management

Agent(s)

SDH SDHRadioPDH XXX

SNMP

NMS/2000NMS/10

Management Station

LAN TCP/IP

TCP/IP

NMS/10 Management Console(s)

NOKIA NMS/10 C6.1


Proprietary management interfaces

converted to open, standard SNMP

interface

9 Hide differences between different network element interfaces

Agents can reside in the same PC

Agent tasks:

9 Collect alarms from network elements9 Store the data in the Agent MIB9 Pass alarms to NMS using SNMP traps

Node Managers to configure nodes can be

put on the same PC or in a separate machine.

PDHNODES

SNMP

Q1 Bus

DCN Adaptor

NMS/10 Main Station

LAN

MF

NOKIA NMS/10 C6.1


All in one PC solution

9 NMS/10 System Frame and HP OpenView NNM

9 Node managers in the same PC

9 Use the same platform to manage SNMP managed IP

products

Note:

- MF is always a separate industrial

PC.

- SDH Synfonet management

requires a dedicated PC

Up to 3 x MF's with a total capacityof 5000 PDH/PRE NE's of 9000 FE's

Synfonet

PDHPRE

SNMP

Q3

Q1

MF DCN Adaptor

Up to 200 FEs per bus and upto 600 FEs per DCN adapters andtotal 6 DCN perone System Frame

NOKIA NMS/10 C6.1


When the network grows, new

agents can be added to the

system,Because of the new network

regions, new management sites may

also be needed:

9 NMS/10 can be accessed remotely9 Other NMS can share the same

agents

IP network components can be

managed using the same platform

Capacity of the system:

9 9000 Q1 FE (3 full MFs)9 Over 3500 Q1 FE (6 DCN)9 300 SYNFONET NEs (100/agent)9 100 SDH Radios

IP

IP

SDHRadio

PDHPRE

SNMP

NNPQ3Q1

Q3

SNMP

File Mode Hide Utils Window

View ModeTampere.fin Alarms

SNMP

Synfonet Synfonet

NOKIA NMS/10 C6.1


9 Downwards: Management of SNMP managed devices (e.g. DCN Components)

9 Upwards: Open, industrial standard SNMP

interface from Agents to any NMS supporting SNMP

Synfonet SDHRadio

File Mode Hide Utils Window

View ModeTampere.fin Alarms

Other NMS NMS/10

PDHPRE

NOKIA NMS/10 C6.1


Interfaces to other systems- Alarm spooling- SNMP- Email

NMS/10

PDHPRE

MediationDevice

SDH

MW Radios

DatabaseAlarm History

Current alarm view

NOKIA NMS/10 C6.1


Root

NOKIA NMS/10 C6.1


NOKIA NMS/10 C6.1

Nokia


NOKIA NMS/10 C6.1

Agents


NOKIA NMS/10 C6.1

Equipments


NOKIA NMS/10 C6.1

Sup. Buses


C. Alarms

NOKIA NMS/10 C6.1


NOKIA NMS/10 C6.1

C. Alarms


H. Alarms

NOKIA NMS/10 C6.1


NOKIA NMS/10 C6.1

H. Alarms


NOKIA NMS/10 C6.1

AlarmPurge


NOKIA NMS/10 C6.1

Alarm Filter


NODE MGR

NOKIA NMS/10 C6.1


NOKIA NMS/10 C6.1


NMS/10

PDHPRE

Mediationdevice

SDH

MW Radios

01.066.00 DF140/2 ST1 TRANSM DF140_g821 Optical DM 15min 98-04-05 00:10:52 1.17549e-038 002.0c9.00 DF140/1 ST2 TRANSM DF140_g821 Optical TT 15min 98-04-05 00:10:52 900 002.0c9.00 DF140/1 ST2 TRANSM DF140_g821 Optical AT 15min 98-04-05 00:10:52 900 002.0c9.00 DF140/1 ST2 TRANSM DF140_g821 Optical ES 15min 98-04-05 00:10:52 1.17549e-038 002.0c9.00 DF140/1 ST2 TRANSM DF140_g821 Optical SES 15min 98-04-05 00:10:52 1.17549e-038 002.0c9.00 DF140/1 ST2 TRANSM DF140_g821 Optical DM 15min 98-04-05 00:10:52 1.17549e-038 003.191.00 DM2/1 ST4 TRANSM DM2_errors 2M FAE 15min 98-04-05 00:10:52 0 001.067.00 CO140 ST1 TRANSM CO140_resets Cpu resets 15min 98-04-05 00:10:52 13 002.0cb.00 CO140 ST2 TRANSM CO140_resets Cpu resets 15min 98-04-05 00:10:52 13 003.191.00 DM2/1 ST4 TRANSM DM2_errors 2M FAW 15min 98-04-05 00:10:52 0 001.067.00 CO140 ST1 TRANSM CO140_g821 140M TT 15min 98-04-05 00:10:53 899 001.067.00 CO140 ST1 TRANSM CO140_g821 140M AT 15min 98-04-05 00:10:53 899 001.067.00 CO140 ST1 TRANSM CO140_g821 140M_SAT_A 15min 98-04-05 00:10:53 1.17549e-038 001.067.00 CO140 ST1 TRANSM CO140_g821 140M_SAT_B 15min 98-04-05 00:10:53 899 001.067.00 CO140 ST1 TRANSM CO140_g821 140M ES 15min 98-04-05 00:10:53 1.17549e-038 001.067.00 CO140 ST1 TRANSM CO140_g821 140M SES 15min 98-04-05 00:10:53 1.17549e-038 001.067.00 CO140 ST1 TRANSM CO140_g821 140M DM 15min 98-04-05 00:10:53 1.17549e-038 002.0cb.00 CO140 ST2 TRANSM CO140_g821 140M TT 15min 98-04-05 00:10:53 899 002.0cb.00 CO140 ST2 TRANSM CO140_g821 140M AT 15min 98-04-05 00:10:53 899 002.0cb.00 CO140 ST2 TRANSM CO140_g821 140M_SAT_A 15min 98-04-05 00:10:53 1.17549e-038 002.0cb.00 CO140 ST2 TRANSM CO140_g821 140M_SAT_B 15min 98-04-05 00:10:53 899 002.0cb.00 CO140 ST2 TRANSM CO140_g821 140M ES 15min 98-04-05 00:10:53 1.17549e-038 002.0cb.00 CO140 ST2 TRANSM CO140_g821 140M SES 15min 98-04-05 00:10:53 1.17549e-038 002.0cb.00 CO140 ST2 TRANSM CO140_g821 140M DM 15min 98-04-05 00:10:53 1.17549e-038 003.191.00 DM2/1 ST4 TRANSM DM2_errors 2M CRC 15min 98-04-05 00:10:53 0 001.068.00 DM140 ST1 TRANSM DM140_g821 140M TT 15min 98-04-05 00:10:53 899 001.068.00 DM140 ST1 TRANSM DM140_g821 140M AT 15min 98-04-05 00:10:53 899 001.068.00 DM140 ST1 TRANSM DM140_g821 140M ES 15min 98-04-05 00:10:53 1.17549e-038 001.068.00 DM140 ST1 TRANSM DM140_g821 140M SES 15min 98-04-05 00:10:53 1.17549e-038 001.068.00 DM140 ST1 TRANSM DM140_g821 140M DM 15min 98-04-05 00:10:53 1.17549e-038 002.0cc.00 DM140 ST2 TRANSM DM140_g821 140M TT 15min 98-04-05 00:10:53 899 0

DM2/1 ST4

0

2

4

6

98-04-0500:10:53

98-04-0500:15:53

98-04-0500:20:53

98-04-0500:25:53

98-04-0500:30:53

CRC FAE FAW

PM data collected from SDH, PDH, MW and NT elements can be post-processed using external tools

PM data collected from SDH, PDH, MW and NT elements can be post-processed using external tools

NOKIA NMS/10 C6.1


TRANSMISSION MANAGEMENT SYSTEMADAPTOR

TMS

TC 21710.01

NOKIA NMS COMPONENTS


The 5T size TMS Adaptor forms an integral part of the Nokia Transmission Management System. It provides a means for the logical connection of multiple bus masters (i.e. Service Terminal, TMC, PC-TMC) to a single TMS Service Bus.

The TMS Adaptor has three ports viz. Port A , B and C. Both Port A & Port B are used for connection of Bus Master to TMS Service bus (MI) via Port C.

The basic operation of this equipment involves the reception and buffering of incoming commands from the bus masters (Ports A & B), retransmission of these messages (in order of reception) onto the service bus (Port C), waiting for a reply, then forwarding the reply to the appropriate bus master.

The TMS adaptor can connect up to maximum 32 Network Elements on Port C service bus. Port C speed can be higher than Port A & Port B & more than 1200 baud.

The TMS adaptor has on-board DC/DC convertor & operates in range of 20 VDC to 72 VDC.

The TMS adaptor is fully programmable for following characteristics:

9 Port Type : TMC or ST9 Port Interface Type : V.11 or V.28 or RS-4859 Port Speeds9 Port C Timeouts9 TMS address and NE count

TMS AD : TC 21710.01


Port A :3 x V.11

or2 x V.11 + 1 x V.28

Port B :2 x V.11 + 1 x RS-485

or2 x V.11 + 1 x V.28

Port A : TMC / NMS

Port B : ST

At a time only one BUS Master in Port A & B

TMS Adaptors must not be cascaded as this can cause response delays which are longer than the Service Terminal or TMC timeout.

A1

A2

A3

A4

B1

B2

B3

B4

TMS AD : TC 21710.01


TMS Adaptor

Port A

PortB

NMS/10 PC

Service Terminal/LCT

NMS REQ.

ST REQ.

NMS REQ. S T

R

E

Q

.

N

E

R

E

P

L

Y

NE REPLY

DB-2B DM2+ DF2-8

Port CLocal MI Bus

x

TMS AD : TC 21710.01


TMS ADAPTOR : SERVICE MENUS


Power Supply Fault Step 1: - Check the incoming voltage level and the unit operating voltages (TOP,7,9,u,1..). Check for abnormality in

measurement.



Memory Fault This alarm is due to failure of memory of TMS adaptor. This Orange LED will glow.

Step 1: Check that by re-inserting the unit whether alarm goes off, otherwise send the unit for repair.

Fault Database Full The fault database contains at least 277 faults and 829 faults at the most. The minimum size 277 is applicable if the NEs

contains several FEs and each FE gives one fault. Currently only the Supervisory Substation (TC 21705) & Flexihoppercontains more than one FE. Therefore, the database size is normally 829. If the fault database becomes full, the TA issues the alarm database full and the yellow LED is lit. After this the faults of the subnetwork equipment will not be stored into the fault database of the TMS Adaptor before earlier faults are removed to create space for new faults

Step 1: Reset the TMS Adaptor by the Port type menu function (e.g. for Port A 6,2,1,1 Port type TMC or 6,2,1,2 Port type ST)

TROUBLE SHOOTING OF TMS ADAPTOR


I am not able to access any NE connected to TMS adaptor

It is assumed that you have direct access to TMS adaptor and the installation is existing meaning no wiring problem in the TMN network. Also there is no alarm in TMS adaptor such as Database Full and you are able to access the TMS adaptor directly.

Step 1: - Check that Green LED of TMS Adaptor is flashing (Generally Port A connected NMS, flashes Green LED on activity).

Step 2: - Connect ST to Port B. Check the speeds & Port Type of Port A and B for correctness as per design value. (Generally

Port A is TMC type @9600 baud and Port B is Service Terminal type @ 4800 baud)

Step 3: - Check by isolating the Q1 DCC path from East side & then West side.

Step 4: - Check that NE address is within TMS Adaptors own address + NE count range.

Step 5: - Re-insert the TMS adaptor.

TROUBLE SHOOTING OF TMS ADAPTOR


www.commtelnetworks.com

Many ThanksMany Thanks

Indeed !!!Indeed !!!

Documents

Training Manual PMUX