This full-featured interface connects through an RS-232, RS-422 or RS-485 serial port with baud rates up to 38400 and can notify your PC software program that any of 16 optically isolated inputs has been opened or closed, as well as giving you software control of its sixteen SPDT, 1-amp relays. You can configure each input to generate user programmable ASCII, HEX or control character strings on each input transition. Each string can be up to 40 characters long. Programming is a snap using HyperTerminal or your favorite com program. You also get three additional pre-programmed selections: The "PIP" GPI format, the AT-1616 format and the short ASCII format.

Two units can also be operated in a standalone mode (master/slave mode) to form a "Relay extension cord," with sixteen channels of control in each direction. The SRC-16 may be expanded to 64 inputs x 64 relays. Optional external Ethernet capabilities may be added with the ESS-1.

The SRC-16 sports LED indicators to display input and relay status. Three front panel LEDs display power, serial transmit, and receive data. It boasts plug-in euroblock screw terminals for easy wire installation/removal.