Mitsubishi Electronics UD8900U, UD8850U manual Interface, Communications format

•Example of ID setting (When Group A, which performs multi-projection with two projectors, and Group B, which

performs multi-projection with three projectors, are connected.)

Multi-projection Group A
Projector 1		Projector 2
PROJECTOR ID	: 01	PROJECTOR ID	: 02
GROUP ID	: A	GROUP ID	: A
			Multi-projection Group B

Projector 3		Projector 4		Projector 5
PROJECTOR ID	: 03	PROJECTOR ID	: 04	PROJECTOR ID	: 05
GROUP ID	: B	GROUP ID	: B	GROUP ID	: B

You can assign the ID code to the control command.

•When the command having the PROJECTOR ID is sent, only the projector having the corresponding ID returns the response.

(When the PROJECTOR ID is set to ALL on the projector, the projector responds to all the PROJECTOR ID numbers assigned to the commands.)

•When the command having the GROUP ID is sent, all the projectors having the corresponding ID return the response.

•When the command having no ID code is sent, all the projectors return response.

to other than “ALL” and assign the PROJECTOR ID differently for each projector to communicate with each projector individually. Refer to the operation manual of the projector for setting the PROJECTOR ID.

When you use a daisy chain con￿guration, set the STANDBY MODE to “STANDARD.” Refer to the operation manual of the projector for setting the STANDBY MODE.

Important:

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

1.2 Interface

1.2.1Pin assignment of SERIAL IN and SERIAL OUT terminals (D-SUB 9-pin)

Pin No.	Name	I/O
1	OPEN
2	RXD	IN
3	TXD	OUT
4	OPEN
5	GND
6	OPEN
7	OPEN
8	OPEN
9	OPEN

1.2.2 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.

For RS-232C cable, the supplied cable (crossover cable) should be used.

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