Nortel NT5K02 Operating and installation instructions

© 1990 Northern Telecom
All rights reserved.
NT5K02 and NT8D03 Analog Line Cards 553-3001-161
SL-1
NT5K02 and NT8D03 Analog Line Cards
Description
Publication number: 553-3001-161
Document release: 3.1
Document status: Standard
Date: March 1, 1992

ii
NT5K02 and NT8D03 Analog Line Cards 553-3001-161
Revision history
January 29, 1990 Standard, release 1.0.
July 31, 1990 Standard, release 2.0.
April 1, 1991 Standard, release 2.1
December 1,1991 Standard, release 3.0. Reissued to include technical content updates.
March 1, 1992 Standard, release 3.1.

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NT5K02 and NT8D03 Analog Line Cards 553-3001-161
Contents
About this document 1
References 1
Description 3
NT8D03 Analog Line Card (µ-Law) 3
Physical description 4
Functional description 4
NT5K02 Flexible Analog Line Card (A-Law) 5
Application 5
Physical description 6
Functional description 8
Technical summary 9
NT8D03 Analog Line Card 9
Analog line interface 9
Input impedance 9
Insertion loss 9
Frequency response 9
Message channel noise 10
Power requirements 11
Foreign and surge voltage protection 11
Overload level 11
Backplane pin layout 12
NT5K02 Flexible Analog Line Card 13
Analog line interface 13
Input impedance 13
Insertion loss 14
Frequency response 14
Idle channel noise 15

iv Contents
NT5K02 and NT8D03 Analog Line Cards 553-3001-161
Ringer limitations 15
Ground button detection 16
Power requirements 16

1
NT5K02 and NT8D03 Analog Line Cards 553-3001-161
About this document
This document outlines the characteristics of the NT5K02 and NT8D03
Analog Line Cards. The information is intended to be used as a guide when
connecting customer-provided apparatus to the line cards.
References
See the Meridian 1 planning and engineering guide for
—Master index (553-3001-000)
—System overview (553-3001-100)
—System engineering (553-3001-151)
—Spares planning (553-3001-153)
—Equipment identification (553-3001-154)
See the Meridian 1 installation and maintenance guide for
—System installation procedures (553-3001-210)
Note: System installation procedures contains the procedures for the
analog line card cross-connections.
—Circuit card installation and testing (553-3001-211)
—Fault clearing (553-3001-510)
—Hardware replacement (553-3001-520)

2 About this document
NT5K02 and NT8D03 Analog Line Cards 553-3001-161
See the X11 software guide for an overview of software architecture,
procedures for software installation and management, and a detailed
description of all X11 features and services. This information is contained
in two documents:
—X11 software management (553-3001-300)
—X11 features and services (553-3001-305)
See the X11 input/output guide (553-3001-400) for a description of all
administration programs, maintenance programs, and system messages.

3
NT5K02 and NT8D03 Analog Line Cards 553-3001-161
Description
NT8D03 Analog Line Card (µ-Law)
The NT8D03 Analog Line Card provides talk battery and signaling for
regular 2-wire common battery 500-type (rotary dial) and 2500-type
(Digitone dial) telephones and key telephone equipment.
The analog line card interfaces to and is compatible with the equipment
listed in Table 1.
Table 1
NT8D03 Analog Line Card application and compatibility
Equipment Specifications
500-type rotary dial telephones:
dial speed
percent break
interdigit time
8.0 to 22.5 pps
58 to 70%
150 ms
2500-type Digitone telephones:
frequency accuracy
pulse duration
interdigit time
speed
+ 1.5 %
40 ms
40 ms
12.5 digits/s

4 Description
NT5K02 and NT8D03 Analog Line Cards 553-3001-161
Physical description
Analog line cards are housed in:
— NT8D37 Intelligent Peripheral Equipment (IPE) Modules:
up to 16 cards
— NT8D11 Common/Peripheral Equipment (CE/PE) Modules:
up to 10 cards
The analog line card circuitry is mounted on a 31.75 by 25.40 cm (12.5 by
10 in.) printed circuit board.
The analog line card connects to the backplane through a 160-pin edge
connector. The backplane is cabled to the input/output (I/O) panel, which
connects to the main distribution frame (MDF), also called a cross-connect
terminal, through 25-pair cables. Telephones then connect to the card at the
MDF.
The faceplate of the analog line card is equipped with a red light emitting
diode (LED) which lights when the card is disabled. When the card is
installed, the LED remains lit for two to five seconds as a self-test runs. If
the self-test completes successfully, the LED flashes three times and
remains lit until the card is configured and enabled in software, then the
LED goes out. If the LED does not follow the pattern described or operates
in any other manner (such as continually flashing or remaining weakly lit),
the card should be replaced.
Functional description
The analog line card contains an 8051-family microprocessor that provides
the following functions:
— self-identification
— self-test
— control of card operation
— status report to the controller
— maintenance diagnostics

Description 5
NT5K02 and NT8D03 Analog Line Cards 553-3001-161
The analog line card also provides:
— 600-ohm balanced terminating impedance
— analog-to-digital and digital-to-analog conversion of transmission and
reception signals for 16 audio telephone lines
— transmission and reception of scan and signaling device (SSD)
signaling messages over a DS30X signaling channel in A10 format
— on-hook and off-hook status detection
— 20-Hz ringing signal connection and automatic disconnection when the
telephone goes off-hook
— synchronization for connecting and disconnecting the ringing signal to
zero crossing of ringing voltage
— loopback of SSD messages and Pulse Code Modulation (PCM) signals
for diagnostic purposes
— correct initialization of all features, as configured in software, at
power-up
— direct reporting of digits dialed (500 telephones) by collecting dial
pulses
NT5K02 Flexible Analog Line Card (A-Law)
The NT5K02 Flexible Analog Line Card provides talk battery and
signalling for regular 2-wire common battery 500-type (rotary dial), 2500-
type (Digitone* dial) telephones and key telephone equipment. The
telephones may have either ground button recall switches, high voltage
message waiting lamps, or low voltage message waiting LEDs.
Application
The NT5K02 Flexible Analog Line Card is used as follows:
• NT5K02AA — High voltage message waiting analog line card
typically used in Australia.
• NT5K02DA — Ground button low voltage message waiting analog
line card typically used in France.
• NT5K02EA — Ground button low voltage message waiting analog line
card typically used in Germany.

6 Description
NT5K02 and NT8D03 Analog Line Cards 553-3001-161
• NT5K02FA — Ground button low voltage message waiting analog line
card with 600 Ωtermination (A/D -4dB, D/A -1dB).
• NT5K02GA — Same as NT5K02FA with different loss plan (A/D
-4dB, D/A -3dB)
• NT5K02HA — Ground button low voltage message waiting analog
line card typically used in Belgium.
• NT5K02JA — Low voltage message waiting analog line card typically
used in Denmark.
• NT5K02KA — Ground button low voltage message waiting analog
line card typically used in Netherlands.
• NT5K02LA — Analog line card typically used in New Zealand.
• NT5K02MA — Ground button low voltage message waiting analog
line card typically used in Norway.
• NT5K02NA — Ground button low voltage message waiting analog
line card typically used in Sweden.
• NT5K02PA — Ground button low voltage message waiting analog line
card typically used in Switzerland.
• NT5K02QA — Ground button low voltage analog line card typically
used in United Kingdom.
Physical description
Analog line cards are housed in:
— NT8D37 Intelligent Peripheral Equipment (IPE) Modules:
up to 16 cards
— NT8D11 Common/Peripheral Equipment (CE/PE) Modules:
up to 10 cards
The analog line card circuitry is mounted on a 31.75 by 25.40 cm (12.5 by
10 in.) printed circuit board.
The analog line card connects to the backplane through a 160-pin edge
connector. The backplane is cabled to the input/output (I/O) panel, which
connects to the main distribution frame (MDF), also called a cross-connect
terminal, through 25-pair cables. Telephones then connect to the card at the
MDF.