Electrical Specifications; Digital Line Interface Specifications - Avaya Nortel Communication Server 1000 Reference

Electrical specifications

This section lists the electrical characteristics of the NT8D02 and NTDK16 digital line cards.

Digital line interface specifications

Table 157: NT8D02/NTDK16 Digital Line card technical summary
technical summary of the digital line cards.
Table 157: NT8D02/NTDK16 Digital Line card technical summary
Characteristics
Units per card
Impedance
Loop limits
Line rate
Power supply
Transmitter output voltage:
• successive "1"
bits
• "0" bits
Additional circuitry
Power requirements
The digital line card needs +15 V DC over each loop at a maximum current of 80 mA. It requires
+15 V, -15 V, and +5 V from the backplane. The line feed interface can supply power to one
Circuit Card Reference
NT8D02 DLC
description
16 voice, 16 data
100 Ohm j/b ohm
30 m (100 ft) to 915 m 30 m (100 ft) to 915 m
(3000 ft) with 24
AWG PVC cable
(+15 V DC at 80 mA) (±15 V DC at 80 mA)
0 to 1070 m (3500 ft) 0 to 1070 m (3500 ft)
with 24 AWG PVC
cable (±15 V DC at
80 mA)
512 kbps ± 100 ppm 512 kbps ± 100 ppm
+ 5 V DC
±15 V DC
+10 V DC
+1.5 ± 0.15 V and
-1.5 ± 0.15 V
0 ± 50 mV
Not applicable
NTDK16BA DLC
description
48 voice, 48 data
100 Ohm j/b ohm
30 m (100 ft) to 915 m
(3000 ft) with 24
AWG PVC cable
(±15 V DC at 80 mA)
0 to 1070 m (3500 ft)
with 24 AWG PVC with 24 AWG PVC
cable (±15 V DC at cable (±15 V DC at
80 mA)
512 kbps ± 100 ppm
+ 5 V DC
±15 V DC
Not applicable
Electrical specifications
on page 357 provides a
NTDK16AA DLC
description
48 voice, 48 data
100 Ohm j/b ohm
(3000 ft) with 24
AWG PVC cable
80 mA)
+ 5 V DC
±15 V DC
+8 V DC
Power Failure
Transfer Control
Ring Sync.
July 2011 357