Circuit power, Electrical specifications, Digital line interface specifications – Nortel Networks 1000 User Manual

Page 433

Digital line interface specifications

433

The digital line card also contains a sanity timer that resets the
microcontroller if program control is lost. The microcontroller must service
the sanity timer every 1.2 seconds. If the timer is not properly serviced, it
times out and causes the microcontroller to be hardware reset.

The NT8D02 Digital Line Card also contains a sanity timer that resets the
microcontroller if program control is lost. The microcontroller must service
the sanity timer every 1.2 seconds. If the timer is not properly serviced, it
times out and causes the microcontroller to be hardware reset.

Circuit power

The +15 V dc input is regulated down to +10 V dc for use by the digital
line interface circuits. The ±15.0 V dc inputs to the card are used to power
the loop interface circuits.

Electrical specifications

This section lists the electrical characteristics of the NT8D02 Digital Line
card.

This section lists the electrical characteristic of the digital line card.

This section lists the electrical characteristics of the NT8D02 Digital Line
Card.

Digital line interface specifications

Table 169 "NT8D02/NTDK16 Digital Line card technical summary" (page
433)

provides a technical summary of the digital line cards.

Table 169
NT8D02/NTDK16 Digital Line card technical summary

Characteristics

NT8D02 DLC

description

NTDK16BA DLC

description

NTDK16AA DLC

description

Units per card

16 voice, 16 data

48 voice, 48 data

Impedance

100 Ohm j/b ohm

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311

02.06

Standard

27 August 2008