The Patton Model 2400 MicroLink™ supports both 64 kbps Clear Channel™ and 56 kbps DDS sync communication over two twisted pair. Available with either an M/34 (V.35) or DB-25 (RS-232) connector, the Model 2400 plugs directly into your DTE port-just like an adapter cable. Clocking can be set for internal, external, or receive recover (network). Diagnostics include CSU loop and V.54 (respond) loop. Two LEDs show test and error.