Installing Bri Trunks; Bri Trunks (Figure 3-9) - NEC ux5000 Hardware Manual

S 3-9
ECTION

INSTALLING BRI TRUNKS

3.9.1

BRI Trunks (Figure 3-9)

BRI trunks must be bridged from the telco RJ21X to a line cross-connect (A) block. Each BRI Trunk requires
one-pair cross-connect from the RJ21X to the line (A) block.
The A block connects to the BRI blade with a 25-pair cable and an RJ-61 jack. The line (A) block should be
arranged in groups of 2 BRI trunks (4 pins) to correspond with the chassis slot equipped with a 2BRI blade.
Installing BRI Trunks
1. For each T-Bus or S-Bus line, run cross-connect wires between the pins on the cross-connect block and
the station block.
2. Install bridging clips as required.
3. From the cross-connect block, connect 2 pairs of wires.
For T-Bus: The opposite end is an 8-pin modular connector which is plugged into the NT1 Termination.
Connect a line cord from the NT1 Network Line Termination to the telco BRI line. Connect the power cord
to the NT1 Network Termination unit.
4. Plug in the corresponding RJ-61 connector to the BRI blade connector.
Chapter 3
Repeat steps 1-4 for each BRI trunk. Label cross-connect
blocks A2, A3, etc.
RJ61 Cable Connector - CN7, CN8
T-Bus Connection
12345678
Chapter 3 - Installing Extensions and Trunks
Pin No.
1
2
3
4
5
6
7
8
Connection
-
-
TA
RA
RB
TB
-
-
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