Extron electronic MLC 52 manual Mounting the MLC, Preparing the Site

RS-232 or IR Projector Control

E
4
3	ON
2
1	1	2	3	4
IR OUT	GND

VOL/

MUTE

+ 10V

MLC 52 VC Series

COMPUTER IN-1

AUDIO

PC

COMPUTER IN-2

AUDIO

R

Y/CVIDEO

AUDIO

L Y

AV IN

G	H/Cs	R	PB/B-Y	C	US
					LISTED
					17TT
					AUDIO/VIDEO
					APPARATUS
				POWER
B	V		PR/R-Y

COMPUTER	CONTROL	12V	L
OUT		3A MAX
	REMOTE	AUDIO OUT

MPA 152

RS-232

MPA 152		OUTPUT
	CLASS 2 WIRING

DO NOT GROUND		4/8
OR SHORT
SPEAKER OUTPUTS!		OHMS
INPUTS	L	R

REMOTE

R	L	R	VOL/MUTE
		10V	50mA

To Loudspeakers

Projector	Any input on the MPA
	can be used.
	Audio Out

Figure 20. Wiring an MLC 52 VC Controller and an MPA Series Power Amplifier to a Typical Projector

NOTE: Audio is now controlled from the MPA instead of from the projector. For best results, ensure that the audio volume of the projector is set to maximum (assuming that the monitor output for audio is variable).

Configuring the MLC 52 IR VC and MLC 52 RS VC Vol Buttons

By default, the MLC 52 has two buttons on the front panel programmed for volume control (Vol > and Vol <). However, on the MLC 52 VC models, these buttons are not needed for volume control and can be programmed for other uses. To reprogram the Vol buttons, you can use IR Learning (see Configuring Using IR Learning on page 18) or the MLC 52 configuration program (see the program help file).

Mounting the MLC 52

After the system has been cabled, configured, and tested, you can mount the MLC.

Preparing the Site

NOTE: The installation of the MLC 52 must conform to national and local electrical codes and to the equipment size requirements.

Installation using a UL listed wall box is recommended for most mounting options, but for US models a mounting bracket can be used instead. To cut a hole in the mounting surface for the controller, use the dimensions from one of the rough-in templates provided under Templates for the MLC 52 and MLC 52 VC (US Models) on page 64 as a guide to measure and mark the hole. The templates provide measurements for installing the MLC with either an electrical box or a mounting bracket.

ATTENTION: The templates are not to scale and are provided for reference only.

MLC 52 MediaLink Controllers • Installation and Configuration 23