I/O Controller: HWg-ER84a - RS-232/485 serial port, 4 relay outputs and 8 inputs for contacts accessible over an Ethernet IP network. HWg-ER84a is a terminal server (serial line) with added binary inputs and relay outputs.      

                           It is controlled over TCP/IP using a Telnet-like M2M protocol.

 

Poseidon 3468: is an IP thermostat with 2 relay outputs, 4 dry contact inputs, and support for 4 sensors. Includes a built-in web server, output control and alarm alerts (e-mail and SNMP trap). Two

                           relay outputs rated up to 110/230V can be controlled manually over a web interface.