Remote control I/O: IP Relay HWg-ER02a
HWg-ER02a IP Relay is a RS-232 / RS-485 serial line converter with two 230V-rated SPDT relays. The contacts and the serial line can be controlled using the HW VSP (virtual serial port) software, or via the documented M2M protocol. Easily attaches to a suitable panel or a DIN rail.