JVC GM-552DU Instruction Manual - Page 25

How to use External Control (RS-232C) How to use the serial communication • Can control a monitor with the external control equipment (a personal computer or a dedicated controller) via the RS-232C terminal. • Consult your dealer for the details of the external control specification. Input terminal Cable Terminal specification Communication specifications RS-232C A straight cable with a RS-232C connector (male for the monitor, female for the external control equipment). See P.29 Baud Rate: Data Bits: Parity: Stop Bits: Flow Control: Communication Code: 4800 bps 8 bits No parity 1 bit No control ASCII Code When the monitor is turned on, the external control is not ready. To start communication, send the connection command from the external control equipment. To terminate the communication, send the termination command from the external control equipment. Example of communication procedures: External control equipment  Starting the communication: connection command (!00BCN1Cr)  Monitor's status (@00BOKCr)  Selecting the Input VIDEO (!00BINACr)  Monitor's status (@00BOKCr)  Terminating the communication: termination command (!00BCN0Cr)  Monitor's status (@00BOKCr) Monitor * Commands starting with "!" are operation commands from the external control equipment. For details, see on the right. * Commands starting with "@" are status returns from the monitor. - 24 -