Digital Line Interface Specifications - Nortel Circuit Card Installation Manual

Digital line interface specifications

Table 173
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
NT8D02 and NTDK16 Digital Line cards
Table 173 provides a technical summary of the digital line cards.
NT8D02 DLC
description
16 voice, 16 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
cable (+15 V DC at
80 mA)
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
cable (+15 V DC at
80 mA)
512 kbps + 100 ppm
+ 5 V DC
+15 V DC
Not applicable
Circuit Card
Page 537 of 906
NTDK16AA 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
cable (+15 V DC at
80 mA)
512 kbps + 100 ppm
+ 5 V DC
+15 V DC
+8 V DC
Power Failure Trans-
fer Control Ring
Sync.
Description and Installation