Section 3: Installing Extensions and Trunks
3-6 Section 3: Installing Extensions and Trunks Aspila EX Hardware Man-
INSTALLING BRI TRUNKS
BRI Trunks
Installing BRI Trunks
1. For Trunk Mode:
The BRI circuit can be plugged directly into the NT1 Termination. Use an
RJ45 patch cable.
2. For S-Bus Mode:
The ISDN terminals can be plugged directly into the RJ45 connector on
the BRI card. If more than one terminal is connected run a 2 pair cable to an RJ45 socket then
daisy-chain the connection to the additional ISDN terminals. For pin-out information for S-
Bus connections, refer to BRI (2/4/8BRIU) Interface PCB (Figure 2-15) (page 2-34).
Repeat for each BRI circuit.
Note that the polarity of the RJ45 connector is set by SW102 to SW802 on the BRI PCB
RJ45 Cable Connector - CN5, CN6, CN7, CN8
T-Bus Connection
Pin No. Connection
1-
2-
3TA
4RA
5RB
6TB
7-
8-
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