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Summary of Contents for Nortel NT5K02
- Page 1 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 © 1990 Northern Telecom All rights reserved. NT5K02 and NT8D03 Analog Line Cards 553-3001-161...
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Page 2: 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. NT5K02 and NT8D03 Analog Line Cards 553-3001-161... -
Page 3: Table Of Contents
Foreign and surge voltage protection Overload level Backplane pin layout NT5K02 Flexible Analog Line Card Analog line interface Input impedance Insertion loss Frequency response Message channel noise Input impedance Insertion loss Frequency response Idle channel noise NT5K02 and NT8D03 Analog Line Cards 553-3001-161... - Page 4 Contents Ringer limitations Ground button detection Power requirements NT5K02 and NT8D03 Analog Line Cards 553-3001-161...
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Page 5: About This Document
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 —... - Page 6 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. NT5K02 and NT8D03 Analog Line Cards 553-3001-161...
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Page 7: Description
Equipment dial speed percent break interdigit time frequency accuracy pulse duration interdigit time speed NT5K02 and NT8D03 Analog Line Cards 553-3001-161 Spe cifica tions 8.0 to 22.5 pps 58 to 70% 150 ms + 1.5 % 40 ms 40 ms... -
Page 8: Physical Description
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 NT5K02 and NT8D03 Analog Line Cards 553-3001-161... -
Page 9: Nt5K02 Flexible Analog Line Card (A-Law)
— 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. -
Page 10: Physical Description
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. NT5K02 and NT8D03 Analog Line Cards 553-3001-161 termination (A/D -4dB, D/A -1dB). - Page 11 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. NT5K02 and NT8D03 Analog Line Cards 553-3001-161...
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Page 12: Functional Description
— loopback of SSD messages and Pulse Code Modulation (PCM) signals for diagnostic purposes — correct initialization of all features at power-up — direct reporting of digit dialed (500 sets) by collecting dial pulses — ground button detection NT5K02 and NT8D03 Analog Line Cards 553-3001-161... -
Page 13: Technical Summary
This is arranged as 3.5 dB loss for analog to PCM, and 0.5 dB loss for PCM to analog. Frequency response The loss values in Table 2 are measured relative to the loss at 1 kHz. NT5K02 and NT8D03 Analog Line Cards 553-3001-161... -
Page 14: Message Channel Noise
Loop limit (excluding telephone) Leakage resistance Ring trip Ringing voltage Signaling Supervision Power input from backplane Insertion loss NT5K02 and NT8D03 Analog Line Cards 553-3001-161 Frequency (Hz) Minimum (dB) 3000 3200 3400 Characteristics 1000 30,000 During silent or ringing intervals... -
Page 15: Power Requirements
Note 2: Each active ringing relay requires 10 mA of battery voltage. Note 3: Reflects the current for ringing a single DN telephone. There may be as many as five ringers on each line. Foreign and surge voltage protection In-circuit protection against power line crosses or lightning is not provided on the analog line card. -
Page 16: Backplane Pin Layout
System installation procedures (553-3001-210) for cable pinout information at the I/O panel. Table 5 NT8D03 Analog Line Card backplane pinout assignments Note: These pinouts apply to both NT8D37 and NT8D11 backplanes. NT5K02 and NT8D03 Analog Line Cards 553-3001-161 Bac kpla ne pinout Lea d designations... -
Page 17: Nt5K02 Flexible Analog Line Card
NT5K02 Flexible Analog Line Card Analog line interface The technical characteristics for the NT5K02 Flexible Analog Line (A-Law) card are comparable with those for the Analog Line card with the following exceptions: Input impedance The impedance at Tip and Ring is 600 ohms with a return loss of... -
Page 18: Insertion Loss
3000 Hz -0.6 dB 1.0 dB 3200 Hz -0.6 dB 2.0 dB 3400 Hz -0.6 dB 2.0 dB NT5K02 and NT8D03 Analog Line Cards 553-3001-161 Country Gain (dB) -1.5 -6.0 -3.0 Frequency Response (Loss) A-A Germany 0.0 dB -0.7 dB 2.0 db... -
Page 19: Ringer Limitations
(for Australia) 30,000 During silent or ringing intervals 86V ac Loop start Normal battery conditions are continuously applied (-48 V on ring; ground on tip) See Table 10 See Table 7 NT5K02 and NT8D03 Analog Line Cards 553-3001-161 Technical summary 15... -
Page 20: Ground Button Detection
R to either Tip or Ring of a telset connected in a balanced loop of up to 1000 . Resistance R may be of value 0 to 500 . Power requirements The NT5K02 Flexible Analog Line card has the following power requirements: Table 10 Power requirements Voltage + 15.0 V dc... - Page 21 SL-1 NT5K02 and NT8D03 Analog Line Cards Description © 1990 Northern Telecom All rights reserved. Information subject to change without notice. Meridian 1 and Digitone are trademarks of Northern Telecom. Release 3.1 Standard March 1, 1992 Printed in Canada...
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