L-com's SC-232-D RS-232 interface converter features optical isolation to protect your valuable communications equipment from damaging ground loops. Additional features include Send Data Control (SDC) which automatically enables the RS-485 driver when data is present on the RS-232 side, 2,500 Volt isolation and 1,500 Watt surge protection. Includes DB9 female to screw terminal block adapter. SC-5VDC-PWR available (sold separately). Order online today!