Product description
CSE-H25 is a RS232 to Ethernet converter with enhanced security protocols embedded. It basically supports conversion functions (serial to TCP/IP and vice versa) to enable your RS232 serial devices to be controlled and monitored over the network. This serial to Ethernet converter comes with multi-monitoring that allows your serial device to be monitored by multiple hosts at the same time.
More information is available in the datasheet (pdf) and on the website of Sollae Systems.