JVC DT-R17L4D, DT-R24L4D user service „ Using the serial communication

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 etc.)	☞ See below	Parity: No parity
			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 21).

“?”: 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

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

2Monitor’s status (@00BOKCr)

Monitor

PC, etc.

3Selecting “SDI 1” input (!00BINACr)

4Monitor’s status (@00BOKCr)

5Terminating the communication: termination command (!00BCN0Cr)

6Monitor’s status (@00BOKCr)

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