JVC DLA-X30, DLA-X90R RS-232C Interface, Command Format, Binary code, Unit ID, Command and data

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RS-232C Interface (Continued)

Command Format

The command between this unit and the computer consists of“Header”,“Unit ID”,“Command”,“Data” and “End”.

●Header (1 byte), Unit ID (2 bytes), Command (2 bytes), Data (n bytes), End (1 byte) ■ Header

This binary code indicates the start of communication.

Binary code	Type	Description
21	Operating command	PC → This unit
3F	Response command	PC → This unit
40	Reference command	This unit → PC
		This unit → PC
06	ACK	(When the command is accepted without error, it
		returns to PC)

■Unit ID

This code specifies the unit. The binary code is fixed at “8901”.

■Command and data

Operating command and data (Binary code)

Command	Type	Description
0000	Connection check	Check whether communication is available between this
		unit and the PC during standby.
		During standby
5057	Power supply	31: Turn on the power.
		During power on
		30: Turn off the power. (Standby mode)
		During power on
		32: COMP.
4950	Input	33: PC 90 70
		36: HDMI 1
		37: HDMI 2
5243	Remote Control	Sends the same code as the supplied remote control.
		● “Remote control code” (Reference page: 89)

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