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.
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.
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
48 voice, 48 data
Impedance
100 Ohm j/b ohm
100 Ohm j/b ohm
100 Ohm j/b ohm
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
02.06
Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.