Extron electronic 16 IR 452 Setup and Operation, Labeling the MLC 104 Volume buttons on the IR

Setup and Operation, cont’d

Buttons and commands used with the MLC 104

To control the MLC 104, you use the buttons in the Display and Front Panel sections of IR 452, which are also used to control the MLC 52.

The following table shows the SIS commands that are issued from the DVCM 50 to the MLC 104 for each press of an IR 452 button, and the button that is activated on the MLC 104.

You must program the desired commands onto the MLC 104's front panel buttons, using the Global Configurator software, in order for the MLC to send the correct command to the projector.

IR 452 Button	IR 452 Overlay	SIS Command	MLC 104 Button/
Name	Section	from DVCM 50	Function Activated
Power On	Display	1P	On
Power Off	Display	0P	Off
Vol ￿	Front Panel	1!	Input selection button 1
PC	Front Panel	2!	Input selection button 2
Vol ￿	Front Panel	3!	Input selection button 3
Video	Front Panel	4!	Input selection button 4
Volume Up	Display	+V	Volume control knob
(arrow)			Increase
Volume Down	Display	–V	Volume control knob
(arrow)			Decrease
Mute On	Display	1M	Audio/video muting on
			(No button equivalent)
Mute Off	Display	0M	Audio/video muting off
			(No button equivalent)

For example, the first row of the table above shows that when you press the Power On button in the Display section of the IR 452, the signal sent to the DVCM 50 is interpreted as the SIS command 1P. This command is sent to the MLC 104 to activate the button that is labeled On (in the Projector section). The MLC 104 responds by issuing the command to the projector to turn on.

Once you have programmed and labeled the buttons on the MLC 104, you should relabel the IR 452 buttons to indicate the commands they will initiate on the MLC 104.

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Muting and unmuting

The MLC 104 does not have buttons that control muting and unmuting on the display device. However, you can program Mute On and Mute Off commands onto the MLC 104 using the Global Configurator (GC2) software. (Visit the Extron Web site at www.extron.com for information on ordering the GC2 software.)

Depending on the feature set of your display device, you can program the MLC 104 to mute/unmute the video, audio, or both.

To use the IR 452 to control muting/unmuting, press the Mute On or Mute Off button in the Display section. Pressing these buttons causes the DVCM 50 to send an SIS command (1M for Mute On button or 0M for Mute Off button) to the MLC 104, causing it to mute or unmute the display device.

Volume control on the MLC 104

To control the volume on the MLC 104 using the IR 452, press the rocker button in the Display section. Pressing the up- or down-arrow on this button causes the DVCM 50 to send a +V or –V SIS command to the MLC 104, which responds by increasing or decreasing the volume on the display device.

Remove the Volume label from the sheet of labels provided with the IR 452, and affix it above the arrow rocker button on the

IR 452 front panel as shown in the illustration below.

VOLUME

TV/VCR

CHANNEL

	FRONT PANEL
VOL	PC
VOL	VIDEO

Labeling the MLC 104 Volume buttons on the IR 452

IR 452 • Setup and Operation 2-17