Adtran DSU III AR

The ADTRAN DSU III AR is a technologically advanced, high performance data service unit/channel service unit (DSU/CSU). This unit provides are liable interface between the digital data service (DDS) or 4-wire Switched 56 (SW56) network and the customer's data terminal equipment (DTE).

It is an all-rate DSU/CSU supporting synchronous and asynchronous data rates on the primary channel and asynchronous data rates on the secondary channel. he DTE interface can be selected as either EIA-232 or V.35 for all data rates. The secondary channel interface is EIA-232 and is accessed through a separate connector.

Additional features of the ADTRAN DSU III AR include a DTE -to-service rate matching feature for both dedicated and switched modes, as well as various anti-streaming time-out values, to disable streaming terminals on a multi-point circuit. Private networks and modem tail circuits are accommodated through clocking/timing options.

This stand-alone unit's front panel keypad supports setup, selection of test modes, local and remote configuration, manual dialing, or automatic dialing from stored numbers (results of which are displayed on a two-line by 16-character LCD display and seven LEDs).