JVC DT-V21G11Z Using the serial communication, Data, Cable, Header, Terminal, Function, Cr (0Dh), On Header, Monitor ID, Command ID, Input terminal, <Command outline

External Control (cont.)

Using the serial communication

You can control the monitor from a personal computer etc. via the RS-485 or RS-232C terminal.

●Consult your dealer for the details of the external control specification.

<Communication specifications>

Input terminal	Cable	Terminal	Communication specifications
		specification
RS-485	A straight LAN cable		Baud Rate: 4800 bps
RS-232C	A straight cable with a D-sub 9-pin connector (male		Data Bits: 8 bits
	for the monitor, female for the personal computer	☞ See below	Parity: No parity
	etc.)		Stop Bits: 1 bit
			Flow Control: No control
			Communication Code: ASCII Code

<Specifications of the RS-485 terminal>
	Pin No.	IN terminal signal	OUT terminal signal
	1	TXD +	TXD +
	2	TXD −	TXD −
	3	RXD +	RXD +
	4	NC	NC
	5	NC	NC
This is a female terminal.	6	RXD −	RXD −
	7	NC	NC
	8	GND	GND

<Specifications of the RS-232C terminal>
	Pin No.	Signal
	1	NC
	2	RXD
	3	TXD
	4	NC
	5	GND
This is a female terminal.	6	NC
	7	RTS
	8	CTS
	9	NC

●The 7th terminal and the 8th terminal are connected.

<Command outline>

All commands consist of the following segments.

		Header	Monitor ID	Command ID	Function	Data	Cr (0Dh)
On Header
“!”	: Operation commands from the personal computer, etc. (☞ <Basic command list> on page 25)
“?”	:	Reference commands from the personal computer, etc.
“@”	:	Status returns from the monitor

To start communication, send the connection command from the personal computer etc. To terminate the communication, send the termination command from the personal computer etc.

Example of communication procedures

1 Starting the communication: connection command (!00BCN1Cr)

		Monitor
	2 Monitor’s status (@00BOKCr)
	3 Selecting “SDI 1” input (!00BINACr)
PC, etc.	4 Monitor’s status (@00BOKCr)
	5 Terminating the communication: termination command (!00BCN0Cr)
	6 Monitor’s status (@00BOKCr)

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