Section 3: Installing Extensions and Trunks
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Section 3: Installing Extensions and Trunks
Aspire S Hardware Manual
INSTALLING BRI TRUNKS
BRI Trunks
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 PCB 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 cabinet slot equipped with a 2BRI PCB.
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 Termi-
nation. 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 PCB connector.
Note: Repeat steps 1-4 for each BRI trunk. Label cross-connect blocks A2, A3, etc.
RJ45 Cable Connector - CN2
T-Bus Connection
Pin No.
Connection
1
-
2
-
3
TA
4
RA
5
RB
6
TB
7
-
8
-
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