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Exchange Interface Card (EIE)

025-9616A.1

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Limited Warranty

Buyer assumes responsibility for the selection of the Products to achieve buyer's or its customers intended results obtained

from the Products. If buyer has provided Zetron with any requirements, specifications or drawings, or if Zetron providesbuyer with such materials, such materials are provided solely for buyers convenience and shall not be binding on Zetronunless agreed in writing by the President of Zetron. ZETRON DOES NOT WARRANT THAT THE PRODUCTS OR ITSCUSTOMERS REQUIREMENTS OR SPECIFICATIONS OR THAT OPERATION OF THE PRODUCTS WILL BE

UNINTERRUPTED OR ERROR FREE. SUBJECT TO THE LIMITATIONS SET FORTH BELOW, Zetron warrants thatall Zetron Products and Zetron Accessories will be free from material defects in material and workmanship for one yearfrom date of shipment (except where indicated otherwise in the Zetron Price Book). For buyers convenience, Zetron may

purchase and supply additional items manufactured by others. In these cases, although Zetrons warranty does not apply,

buyer shall be the beneficiary of any applicable third party manufacturers warranties, subject to the limitations therein.Zetron's warranty covers parts and Zetron factory labor. Buyer must provide written notice to Zetron within the warranty

period of any defect. If the defect is not the result of improper or excessive use, or improper service, maintenance orinstallation, and if the Zetron Products or Zetron Accessories have not been otherwise damaged or modified after shipment,

AS ZETRON'S SOLE AND EXCLUSIVE LIABILITY AND BUYER'S SOLE AND EXCLUSIVE REMEDY, Zetron shalleither replace or repair the defective parts, replace the Zetron Products or Zetron Accessories or refund the purchase price, atZetron's option, after return of such items by buyer to Zetron. Shipment shall be paid for by the buyer. No credit shall beallowed for work performed by the buyer. Zetron Products or Zetron Accessories which are not defective shall be returned at

buyer's expense, and testing and handling expense shall be borne by buyer. Out-of-warranty repairs will be invoiced at thethen - current Zetron hourly rate plus the cost of needed components. THE FOREGOING WARRANTY AND THE THIRD

PARTY MANUFACTURER'S WARRANTIES, IF ANY, ARE IN LIEU OF ANY AND ALL OTHER WARRANTIESEXPRESSED, IMPLIED OR ARISING UNDER LAW, INCLUDING, BUT NOT LIMITED TO, THE IMPLIEDWARRANTIES OF MERCHANTABILITY, NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE.

Limitation of Liability

Zetron makes no representation with respect to the contents of this document and/or the contents, performance, and functionof any accompanying software. Further, Zetron reserves the right to revise this document or the accompanying software andto make changes in it from time to time without obligation to notify any person or organization of such revisions or changes.

ZETRON SHALL NOT UNDER ANY CIRCUMSTANCES BE LIABLE TO BUYER OR ANY THIRD PARTY FORANY INCIDENTAL, SPECIAL, CONSEQUENTIAL OR INDIRECT LOSS OR DAMAGE ARISING OUT OF OR

CONNECTED WITH BUYER'S PURCHASE OR USE OF PRODUCTS OR SERVICES, INCLUDING WITHOUTLIMITATION, LOSS OF USE, LOSS OR ALTERATION OF DATA, DELAYS, LOST PROFITS OR SAVINGS, EVEN

IF ZETRON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES AND EVEN IF THE LIMITEDREMEDY ABOVE IS FOUND TO FAIL OF ITS ESSENTIAL PURPOSE. IN NO EVENT SHALL ZETRON'S

LIABILITY (WHETHER FOR NEGLIGENCE OR OTHER TORT, IN CONTRACT OR OTHERWISE) EXCEED THEPRICE PAID TO ZETRON FOR THE PRODUCTS.

IP networks by their nature are subject to a number of limitations, such as security, reliability, and performance. Anyoneusing non-dedicated IP networks, such as shared WANs or the Internet, to connect to any Zetron Products or systems shouldconsider and is responsible for these limitations.

Zetron, Inc. All rights reserved. This publication is protected by copyright; information in this document is subject to changewithout notice. Zetron and the Zetron logo are registered trademarks of Zetron, Inc. Other company names and productnames may be the trademarks or registered trademarks of their respective owners. This publication may not be reproduced,

ranslated, or altered, in whole or in part, without prior written consent from Zetron, Inc.

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3

Compliance Statements

Products and batteries with the symbol (crossed-outwheeled bin) cannot be disposed as householdwaste. Old electrical and electronic equipment and

batteries should be recycled at a facility capable ofhandling these items and their waste byproducts.

Contact your local authority for details in locating arecycle facility nearest to you.

Proper recycling and waste disposal will helpconserve resources whilst preventing detrimentaleffects on our health and the environment.

Notice: The sign Pb below the symbol forbatteries indicates that this battery contains lead.

Information on Disposal of Old Electrical and Electronic Equipment and

Batteries (applicable for EU countries that have adopted separate waste

collection systems)

FCC Class A User Information

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of theFCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment isoperated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if notinstalled and used in accordance with the instruction manual, may cause harmful interference to radio communications.

Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will berequired to correct the interference at his own expense.

Regulatory Compliance Markings

When required these products are provided with the following Product Certification Markings:

FCC Part 15 (USA)

FCC Part 68 (USA)

CS-03 (Canada)

CE (Europe)

C-tick (Australia)

A-tick (Australia)

EMC Compliance Standards

FCC Part 15 Radiated & Conducted Emissions (USA)

ICES-003 Radiated & Conducted Emissions (Canada)

EN 55022 Radiated & Conducted Emissions (Europe & Australia)

EN 55024 Immunity (Europe)

Telecommunications Compliance Standards

FCC Part 68 (USA)

CS-03 (Canada)

AS/ACIF S002 (Australia)

Safety Compliance Standards

AS/NZS 60950 (Australia)

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4 025-9616A.1

Safety Summary

STOP

Warning! For your safety and the protection of the equipment, observe these

precautions when installing or servicing Zetron equipment.

Follow all warnings and instructions marked on the equipment or included in documentation. Only technically qualified service personnel are permitted to install or service the equipment.

Be aware of and avoid contact with areas subject to high voltage or amperage. Because some components canstore dangerous charges even after power is disconnected, always discharge components before touching.

Never insert objects of any kind through openings in the equipment. Conductive foreign objects could produce ashort circuit that could cause fire, electrical shock, or equipment damage.

Remove rings, watches, and other metallic objects from your body before opening equipment. These could beelectrical shock or burn hazards.

Ensure that a proper electrostatic discharge device is used, to prevent damage to electronic components.

Do not attempt internal service of equipment unless another person, capable of rendering aid and resuscitation, ispresent.

Do not work near rotating fans unless absolutely necessary. Exercise caution to prevent fans from taking in foreignobjects, including hair, clothing, and loose objects.

Use care when moving equipment, especially rack-mounted modules, which could become unstable. Certain itemsmay be heavy. Use proper care when lifting.

Change List for Rev A, 17 February 2010

First released version.

This document replaces the EIE section in 025-9574.

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Contents

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Contents

Exchange Interface Card (EIE) ............................................................................. 7

Overview ................................................................................................................................. 7Block Diagram........................................................................................................................ 8

Description of Major Functional Blocks .......................................................................... 9Interfaces ............................................................................................................................. 10

Front Edge Layout ....................................................................................................... 10Rear Edge Layout ........................................................................................................ 11Physical Layout ............................................................................................................ 11LED Indicators ............................................................................................................. 11Reset ............................................................................................................................ 12Settings ........................................................................................................................ 12Connector Detail .......................................................................................................... 12

Installation ............................................................................................................................ 16Alarm Generation ................................................................................................................. 17

Technical Specifications ...................................................................................................... 18Main Interface .............................................................................................................. 19Subrack Backplane Interface ....................................................................................... 20Mean Time Between Failures ...................................................................................... 20

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Overview

6 025-9616A.1

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Overview

7

Exchange Interface Card (EIE)

P/N 950-0522 (64-pin)P/N 950-0637 (RJ45)

Overview

The EIE is a line card that provides six 2-wire interfaces for connection to PSTN or

PABX lines.

The six interfaces on the EIE are independent and have the following features:

2 to 4 wire conversion Selection of 16 line termination settings

Ring detection

Loop seizure

Enables CLI to be passed transparently

300 to 3400 Hz channel bandwidth

Line isolation

Ring detection via second pair

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Block Diagram

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Block Diagram

Figure 1: EIE Functional Block Diagram

FPGA

LEDs HDLC

Controller

BackplaneConnector

LineProtection

+1.5

Note: For clarity, only one of six channels is shown.

+3.3 +5

Power Filters &Regulation

DSP

Ring Detector

DAA

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Block Diagram

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Description of Major Functional Blocks

Table 1: Description of EIE Functional Blocks

Block Description

Line Protection A surge suppression circuit using sidactors.

Ring Detection Isolated circuitry is used to detect the ring signal if the ring is

provided on a separate pair of wires.

DAA Integrated chipset that performs the hybrid, line impedance

matching, line looping, and ring detection. Also includes the analog-

to-digital / digital-to-analog conversion of the audio signal.

LEDs Provides a run indication and also the line/loop status of each

channel.

Power circuit Includes filtering, over voltage protection, and soft state circuit to

limit the inrush current at power-up.

FPGA Provides an interface between the backplane signals and the DSP.

DSP Implements digital filters and control the operation of the DAAs.

HDLC Controller Decodes the backplane messaging channel that is used to setup the

EIE card operating parameters.

Backplane Connector A DIN41612 type connector that carries signals for power, data,timing, and card detection.

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Interfaces

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Interfaces

Front Edge Layout

Figure 2: EIE Front Edge Layout

a c

32

P4

1

Extractionlever

Status LEDs:Solid green = line loopedBlinking red = ring in active

CH 2 statusCH 4 statusCH 6 status

Run LED

CH 1 statusCH 3 statusCH 5 status

Pin 1

J1

J2

J3

J4

J5

J6

(RJ45 Version)

Note Older EIE cards do not have LED indicators.

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Interfaces

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Rear Edge Layout

Standard backplane interface only.

Physical Layout

Figure 3: EIE Card Jumpers

NORM

ALT

Exchange Interface Card

P5

B

ackplaneInterfaces

P4

Run LED

NORMALT

NORMALT

NORMALT

NORMALT

NORMALT

JP2

JP3

JP4

JP5

JP7

JP10 JP9

JP8

JP6

Dualbackplane

Singlebackplane

JP1

Short to reset

J1

J2

J3

J4

J5

J6

950-0522(65-pin connector)

950-0637(RJ45 connectors)

LED Indicators

The Exchange Interface Card (EIE) has one LED to indicate it is running and six LEDs to

indicate channel status (seeFigure 2). Each LED represents one channel. Older EIE cards

do not have LED indicators.

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Interfaces

12 025-9616A.1

Reset

The EIE includes circuitry that resets the Microprocessor system on power-up or during

the subrack reset (initiated by the primary MCU in the ALS). It will also reset when the

Watchdog timer function is activated. During reset the EIE will not pass audio signals.

Settings

Jumpers

EIE boards with part numbers 950-0522 and 950-0637 have the following jumpers:

JP1:Located below connector P1, this jumper is provided to allow resetting of the card.

These pins are supplied with no jumper fitted. Momentarily shorting the pins of JP1 will

RESET the card (for test purposes only).

JP6, JP8, and JP9:Located near the bottom right-hand corner of the PCB, these are

used where the EIE card is to be fitted into a subrack containing either an upperbackplane only (SINGLE) or both upper and lower backplanes (DUAL). Default position

is for DUAL, where both backplanes exist in the subrack.

Note All three jumpers (JP6, JP8, and JP9) MUST be set together (i.e.all to DUAL or SINGLE position).

JP2, JP3, JP4, JP5, JP7, and JP10:Located towards the bottom center of the PCB,

these are used to select the ring detect source of the 6 EIE channels respectively. Ring

detection can be from the EIE line circuits (NORMal) or the ALT RING detectors to theleft of the jumpers (ALTernate). Default position of these jumpers is NORM.

Connector Detail

Each EIE has six 2-wire interfaces; each can be connected to a telephone exchange

(PSTN or PABX). The status of the lines is detected and their associated signaling such

as ring detection and line looping are generated.

DAAs perform amplification and analog-to-digital conversion of the audio signals, which

allows the gain of each channel to be programmed (using the system software package).Transmit and receive signals in excess of the maximum instantaneous input levels may be

subject to clipping. When the transmit and receive gains are set to 0 dB, the insertion loss

on both the transmit and receive paths is 0 dB.

All external signal connections are made at the front edge of the card through connector

P4. The connector pinout is shown inTable 2.The connector pinout for the RJ45 version

is shown in

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Interfaces

13

Table 3.

Table 2: Interface Connector P4 Pinout

Direction Function Pin Channel Pin Function Direction

- 32a 32c -

IN/OUT LA1 31a 1 31c LB1 IN/OUT

- 30a 30c -

IN Alt ring A1 29a 29c Alt Ring B1 IN

- 28a 28c -

- 27a 27c -


- 25a 25c -

IN Alt Ring A2 24a 24c Alt Ring B2 IN

- 23a 23c -

- 22a 22c -


- 20a 20c -


- 18a 18c -

- 17a 17c -


- 15a 15c -


- 13a 13c -

- 12a 12c -


- 10a 10c -


- 8a 8c -

- 7a 7c -

- 6a 6c -


- 4a 4c -


- 2a 2c -

- 1a 1c -

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Interfaces

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Table 3: Interface Connector J1 Through J6 Pinout (RJ45 version)

Connector Channel Pin Function

J1 1 3 Alt Ring A1

J1 1 4 LA1

J1 1 5 LB1

J1 1 6 Alt Ring B1

J2 2 3 Alt Ring A2

J2 2 4 LA2

J2 2 5 LB2

J2 2 6 Alt Ring B2

J3 3 3 Alt Ring A3

J3 3 4 LA3

J3 3 5 LB3

J3 3 6 Alt Ring B3

J4 4 3 Alt Ring A4

J4 4 4 LA4

J4 4 5 LB4

J4 4 6 Alt Ring B4

J5 5 3 Alt Ring A5

J5 5 4 LA5

J5 5 5 LB5

J5 5 6 Alt Ring B5

J6 6 3 Alt Ring A6

J6 6 4 LA6

J6 6 5 LB6

J6 6 6 Alt Ring B6

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Interfaces

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Figure 4: Line Protection Circuit Schematic

LA

LB

680pF 680pF

TNV

Ground

Line Relaysidactor

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Installation

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Installation

Card Placement

Rules for installing an EIE in a subrack are as follows:

The EIE card is hot-plug capable and may be removed or inserted with powerapplied to the rack.

The EIE may be fitted to any slot in the subrack except slots 0, 1, and 12.

Line Impedance

The line impedance can be configured for each line through the system software. A 2-

wire telephone line connected with a short cable has an impedance of 600 ohm

(resistive). As the length of the line increases, the resistance and capacitance increase andthe impedance becomes complex (i.e., combination of resistance / capacitance and/or

inductive impedance). The EIE includes a switchable network that is intended to help the

EIE match the impedance of longer lines. The EIE can select one of 16 options to help it

match the impedance of longer lines.

Signaling

There are three signaling lines used to control and monitor the status of the EIE

interfaces:

Ring detect

Loop out

When a ring voltage is detected, the line remains on-hook and mutes the audio paths.

The loop out circuit connects a load, which appears resistive at DC and is seen as high

impedance AC. The loop circuit is used for decadic (pulse) dialing.

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Alarm Generation

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Alarm Generation

The removal of a configured EIE, or the failure of a CODEC, will generate a

Configuration Error (CE) alarm.

Table 4: EIE Alarms

Event Alarm Generated No Alarm Type

EIE Card Failure CE (Configuration Error) 0 Urgent

EIE Card Removal CE (Configuration Error) 0 Urgent

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Technical Specifications

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Table 5: Power Supply

Parameter Max Rating

Line Interface DC Voltage 60 V

Ring Voltage 100 VRMS

Table 6: Environmental

Parameter Specification

Operational Temperature 0 to 60 C (32 to 140 F)

Storage Temperature -10 to 70 C (14 to 158 F)

Humidity 45% Relative Humidity @ 45 C (113 F)

Table 7: Physical Characteristics

Parameter Typical

Overall length (front to back) 220 mm

Overall Depth (between card guides) 233 mm

Overall Height 23 mm

Thickness of printed board 1.6 mm

Weight 330 g

Table 8: Operation Timing

Parameter Min Max

Ring signal inactive to line looping 128 ms

Ring signal detect time 190 ms

Line break detect time 300 ms

Line looping to audio connection relay 300 ms

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Main Interface

The following are the main interface characteristics.Table 9 shows all of the interface

characteristics.

Parameter Specification

Physical Connector DIN41612 Type C 64-pin male / RJ

Physical Interface 2-wire 600

Number of Channels 6

Sampling A Law PCM (8 kHz)

Table 9: Interface Characteristics

Parameter Conditions Min. Typical Max. Units

Input Isolation - 1.5 - - kV

External circuit ring voltage range - 15 - 100 VRMS

External ring frequency range - 15 20 55 Hz

Ring equivalence number - - - 0.5

External circuit line voltage range - 19 - 80 V

Line looping current limit, maximum - -10 - 120 mA

Receive gain range (configurable) - -16.5 - +13.5 dB

Transmit gain range (configurable) - -16.5 - +13.5 dB

Maximum instantaneous input level Rx gain=0 dB - - +3.2 dBm

Maximum instantaneous output level Tx gain=0 dB - - +3.2 dBm

Frequency response - 300 - 3400 Hz

Transhybrid balance 0.3 - 3.4 kHz 20 - - dB

Variation of gain with level Input level > -50dBm -0.5 - +0.5 dB

Signal to total distortion 1020 Hz 33 - - dB

Return loss 0.3 - 3.4 kHz 25 - - dB

Channel to channel crosstalk - - - -66 dB

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Subrack Backplane Interface

Physical Connector: DIN41612 Type C, 64-pin male

Table 10: Electrical Characteristics

Parameter Max Units

+5 Volt Power Consumption 150 mA

Mean Time Between Failures

Hardware Part Number MTBF (years)*

EIE 950-0522950-0637

57

* Using HRD5 model (temperature controlled locations)

Documents

EIE 025-9616.pdf