Connecting BRI Lines
The BRI ports can be connected to ISDN terminal equipment such as ISDN telephones or PBXs. Each BRI port can be configured either as termination equipment/user side (TE) or network termination / network side (NT). Up to eight terminal equipment (TE) devices can be connected per BRI S/T port, using an ISDN S-bus providing eight ISDN ports. When configured as NT, the BRI port drives a nominal voltage of 38V with limited current supply of up to 100 mA.
To protect against electrical shock and fire, use a 26 AWG min wire to connect the BRI ports to the PSTN.
BRI interface is a separate orderable item which is supported only on specific hardware configurations. For more information, contact your AudioCodes sales representative.
The BRI cabling specifications include the following:
| ■ | Cable: Straight-through, Category (Cat) 5, 5e or 6 |
| ■ | Connector: Standard RJ-45 |
| ■ | Connector Pinouts: |
RJ-45 Connector Pinouts for TE or NT BRI Ports
| ➢ | To connect a BRI line: |
| 1. | Connect the RJ-45 cable to the device's BRI port, located on the rear panel and labeled BRI. |
Cabling BRI Ports
| 2. | Connect the other end of the cable to your ISDN equipment. |