Adtran Atlas 550 Quad T1/PRI Module 1200755L1 Phone Systems Adtran 1200262L1 Features:

Adtran 1200262L1 Features:

Standard DB-25 EIA-232 connectors via supplied adapter cables

Each console cable plugs into a serial port on your PC

A full duplex speakerphone and a headset port provide handsfree communication options for the Allworx 9204

We recommend users switch to the 3Com 3102B (3C10402B) if they have a newer version of software

Adtran Atlas 550 Quad T1/PRI Module 1200755L1 Phone Systems Adtran 1200262L1 Features:Adtran Atlas 550 Quad T1 PRI Module 1200755L1 Description: The Adtran 1200755L1 provides four T1 or PRI interfaces to an Adtran Atlas 550. Each port can be configured to work as a T1 or PRI. The 1200755L1 offers support for Drop Insert and 1 0 digital access cross connect systems (DACS) applications. The quad T1 PRI module supports PRI switching and frame relay emulation. Adtran 1200755L1 Features: Can be used in any user interface module slot