Nortel Networks 1000 - Manual (Page 435)

Technical summary 435
Table 170
NT8D02/NTDK16 Digital Line Card technical summary (cont’d.)
Characteristics
NT8D02 DLC
description
NTDK16BA DLC
description
NTDK16AA DLC
description
Power supply
+ 5 V DC
±15 V DC
+10 V DC
+ 5 V DC
±15 V DC
+ 5 V DC
±15 V DC
+8 V DC
Transmitter output voltage:
• successive "1" bits +1.5 ± 0.15 V and
-1.5 ± 0.15 V
• "0" bits 0 ± 50 mV
Additional circuitry
Not applicable Not applicable Power Failure Transfer
Control Ring Sync.
Digital line interface specifications
Table 171 "Digital line card - line interface unit electrical characteristics"
(page 435)
provides specifications for the 16 digital line interfaces, and
Table 174 "Digital line card-power required" (page 437) lists the maximum
power consumed by the card.
Table 171
Digital line card - line interface unit electrical characteristics
Characteristics Description
Units per card 16 voice, 16 data
Line rate 512 kbps ± 100 ppm
Impedance 100 3 /
4
Loop limits 0 to 1067 m (3500 ft.) with 24 AWG
PVC cable (±15 V dc at 80 mA)
Maximum ac Signal loss 15.5 dB at 256 KHz
Maximum dc Loop resistance 210 ohms
Transmitter output voltage:
successive "1" bits +1.5 ± 0.15 V and –1.5 ± 0.15 V
"0" bits 0 ± 50 mV
Table 218 "Environmental specifications" (page 599) provides
specifications for the 16 digital line interfaces, and Table 174 "Digital line
card-power required" (page 437) lists the maximum power consumed by
the NT8D02 Digital Line Card.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.