Uživatelský manuál 2N® EasyGate IP ... 5. Configuration 5.9 Services / Signaling 5.9.2 RS-232 via TCP 5.9.2.2 RS-232 RS-232 State – display the communication states:Closed – serial line unfunctional,Open – device listens on the serial line,Active – server connection active.Baud Rate – set the serial communication rate.