ADTRAN 1200764E1 QUAD BRI S/T MODULE

The ADTRAN Quad Basic Rate ISDN (BRI) Module contains four ISDN S/T interfaces and combines with other ATLAS 550 components to implement an ISDN access switch. The Quad BRI Module can emulate the ISDN network to other ISDN access devices (NT mode) that support the S/T-interface, such as routers, video codecs, terminal adapters, and network termination units. It provides up to 4W PS1 line power (1W/port) to devices such as ISDN phones. As a component in an ATLAS 550 access switching application, the Quad BRI Module can consolidate multiple Basic Rate ISDN (BRI) connections onto T1/PRI access lines. The module also supports BRI-to-BRI and BRI-to-PRI switching. In addition, the ATLAS 550 can convert between ISDN D channel (PRI or BRI) and T1 robbed bit signaling, allowing non-ISDN equipment to access a more efficient PRI or BRI facility. Moreover, the module's call filtering feature allows you to program on a per-user basis, the call types that will be answered and originated.