Installing Isdn Bri Terminal Equipment; S Or T Wiring For Terminal Equipment - Nortel ICS Install Manual

294 / Installing ISDN BRI terminal equipment

Installing ISDN BRI terminal
equipment
For each S or T or U-LT reference point, an eight-position
miniature unkeyed plug from the terminal equipment (TE) is
plugged into a jack connected to Norstar wiring. The pin
connections for the jack and plug are shown in the following
charts.

S or T wiring for terminal equipment

Pin
(jack or plug)
1
2
3
4
5
6
7
8
Modular ICS 7.1 Installer Guide
Norstar connection
(for jack)
not used
not used
+Rx
+Tx
-Tx
-Rx
not used
not used
Equipment connection
(plug)
optional power source 3 (+)
optional power source 3 (-)
+Rx
+Tx
-Tx
-Rx
optional power sink 2 (-)
optional power sink 2 (+)
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