It can be used to connect EclerCOMM Manager software with EclerCOMM devices (DAM614, CA series, etc), and also to communicate with them using the CA-NET protocol (integration with 3rd party devices).
In EclerNet, the RS-232 port can be used to communicate with control systems (Extron©, Crestron©, AMX©, RTI©) using the TP-NET protocol.