Mitsubishi Electronics EW331U-ST manual Interface, Pin assignment of SERIAL terminal D-SUB 9-pin

DLP  Projector

EX320U/EW330U/EX320U-ST/EX321U-ST/EW331U-ST

Controlling the projector using a personal computer

This projector can be controll ed by connecting a pe rsonal computer with RS-232C terminal.

PC-controllable functions:

•Turning the power ON or OFF

•Changing input signals

•Inputting commands by pressing the buttons on the control panel and remote control

•Menu setting

Connection

RS-232C cable

RS-232C		SERIAL
terminal
	D-SUB 9-pin	D-SUB 9-pin

Important:

•Connect the computer with the projector on a one-to-one basis.

•Make sure that your computer and projector are turned o￿ before connection.

•Boot up the computer ￿rst, and then plug the power cord of the projector. (If you do not follow this instruction, the Com port may not function.)

•Adapters may be necessary depending on the PC connected to this projector. Contact your dealer for details.

1. Interface

1.1 Pin assignment of SERIAL terminal (D-SUB 9-pin)

Pin	Description	Pin	Description
1	NC	2	RXD
3	TXD	4	NC
5	GND	6	NC
7	RTS	8	CTS
9	NC

1.2 Communications format

PROTOCOL	RS-232C
BAUD RATE	9600 [bps]
DATA LENGTH	8 [bits]
PARITY BIT	NONE
STOP BIT	1 [bit]
FLOW CONTROL	NONE

This projector uses RXD, TXD and GND lines for RS-232C control.

1 2 3 4 5

6 7 8 9

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