Mitsubishi Electronics MDT651S manual Other functions, To control multiple monitors collectively

Other functions (continued)

Supplemental information of the auto brightness function

To control multiple monitors collectively

In such a case where the tiling function is used, you can control the auto brightness function by sharing the detection result of the brightness sensor of a certain monitor among the connected monitors.

1. Multi-connect the monitors using RS-232C or CAT5 cables separately sold as shown by the example below.

Monitor	Monitor	Monitor
ID = 9	ID = 8	ID = 7
(Slave)	(Slave)	(Slave)	Master: Monitor configured as Master that detects the
				outside light (Monitor ID is “1”.)
Monitor	Monitor	Monitor	Slave:	Monitor controlled by the Master monitor (Monitor
				ID is other than “1”.)
ID = 6	ID = 5	ID = 4
(Slave)	(Slave)	(Slave)
Monitor	Monitor	Monitor
ID = 3	ID = 2	ID = 1
(Slave)	(Slave)	(Master)

2.	Assign a monitor ID to each multi-connected MDT651S using MONITOR ID. (See page 47.)
	Monitor ID is selectable from 1 to 26.
	The monitor ID of the Master monitor should be “1” and those of the Slave monitors should be other than “1”.
	You are recommended to assign IDs to the monitors consecutively from 1, 2, 3, and on.
3.	Set AUTO BRIGHTNESS on the OSD screen (PICTURE) as follows.
		AUTO BRIGHTNESS	CONTROL
	Master monitor	LOCAL	PRIMARY
	Slave monitors	REMOTE	SECONDARY
4.	For connection with CAT5, set [RS485 TERMINATION] of the master monitor and the slave monitor at the end to ON. Set [RS485
	TERMINATION] of the other slave monitors to OFF. See page 47.

To use a computer to control the monitors

When using a computer to control the monitors, you must prepare an application software program for control by yourself.

1. Connect the RS-232C IN connector of the Master monitor shown above and the RS-232C connector of the computer using an

		RS-232C cable.
		Or, using a CAT5 cable, connect the RS-232C connector of the computer to the CAT5 IN connector of the Master monitor via the
		CAT5 Tx BOX.
2.		Assign a monitor ID to each multi-connected MDT651S using MONITOR ID. (See step 2 on page 47.)
3.		Set AUTO BRIGHTNESS on the OSD screen (PICTURE) as follows.
			AUTO BRIGHTNESS	CONTROL
		Master monitor	REMOTE	SECONDARY
		Slave monitors	REMOTE	SECONDARY
4.		For connection with CAT5, set [RS485 TERMINATION] of the master monitor and the slave monitors to ON. However, set [RS485
		TERMINATION] of the slave monitor at the end to OFF. See page 47.
5.	For the specifications of the communication commands, contact your dealer.

NOTE:

When using CAT5 for control only, you can connect up to 26 monitors. When using the video function together, you are recommended to connect only 5 or less monitors due to the restrictions of the video function. See page 25.

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