The Model 1050 AC Powered Asynchronous Short Range Modem is to our AC powered short haul line what the Model 1000 is to our interface powered line-a basic short haul at a great price! And the Model 1050 has the key features you need: optical isolation, a local loopback test mode, LED indicators and a DCE/DTE switch. The Model 1050 supports asynchronous RS-232 data rates to 38.4 kbps. Distances of 7 miles (11.3 Km) are attainable over two 24 AWG twisted pair. Housed in an ultra-compact enclosure, the Model 1050 provides both an external RJ-11 jack and internal terminal block for line connection. On the RS-232 side, a female DB-25 is standard. The Model 1050 is designed for point-to-point applications, with one unit on each end of the line. However, the Model 1050 is also compatible with the Patton 1060 and 1226 short hauls.