Nortel Networks 1000 - Manual (Page 177)

Electrical specifications 177
Table 66
Lineside T1 card - line interface unit electrical characteristics (cont’d.)
Characteristics Description
Signaling Loop or ground start A/B robbed-bit
Distance to Customer Premise
Equipment (CPE) or Channel Service
Unit 0-199.6 meters (0–655 feet)
Table 67 "Lineside T1 card - line interface unit electrical characteristics"
(page 177)
provides a technical summary of the T1 line interfaces,
and Table 69 "Lineside T1 card - power required" (page 178) lists the
maximum power consumed by the card.
T1 channel specifications
Table 67 "Lineside T1 card - line interface unit electrical characteristics"
(page 177)
provides specifications for the 24 T1channels. Each
characteristic is set by dip switches. See “Installation and configuration”
(page 179) for the corresponding dip switch settings.
Table 67
Lineside T1 card - line interface unit electrical characteristics
Characteristics Description
Framing ESF or D4
Coding AMI or B8ZS
Signaling Loop or ground start A/B robbed-bit
Distance to Customer Premise
Equipment (CPE) or Channel Service
Unit 0-199.6 meters (0–655 feet)
Power requirements
The Lineside T1 card requires +15 V, –15 V, and +5 V from the backplane.
One NT8D06 IPE Power Supply AC or NT6D40 IPE Power Supply DC
can supply power to a maximum of eight Lineside T1 cards. See
Table 68
"Lineside T1 card - power required" (page 177) .
Table 68
Lineside T1 card - power required
Voltage Current (max.)
+ 5.0 V dc 1.6 Amp
+15.0 V dc 150 mA.
–15.0 V dc 150 mA.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.