Installation & Maintenance Manual 46 Document #: LTRT-40111
Mediant 1000B SBA
6.5 Connecting to ISDN E1/T1 Interfaces
This section describes how to connect to ISDN E1/T1 Interfaces.
6.5.1 Connecting to E1/T1 Trunks
The procedure below describes how to connect to E1/T1 trunks.
Warning: To protect against electrical shock and fire, use a 26 AWG min wire to connect
T1 or E1 ports to the PSTN.
Note: The TRUNKS module is a customer ordered item. This section is applicable only if
your device is installed with such a module.
An RJ-48c trunk cable connector with the following pinouts is used:
Figure 6-8: RJ-48c Connector Pinouts for E1/T1
To connect to E1/T1l trunks:
1. Connect the E1/T1 trunk cables to the ports on the device's TRUNKS module(s).
2. Connect the other ends of the trunk cables to a PBX/PSTN switch.