Extron electronic MLC 62 RS D, MLC 62 IR D, MLC 64 RS VC D User Manual

Product Category

Rear Panels

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IMPORTANT:

MLC 60 Series • Setup Guide

for the MLC 62 RS D, MLC 62 IR D, and MLC 64 RS VC D

The MLC 60 D Series are keypad controllers for use
in classrooms and meeting facilities. They mount
to Decora®-style wallplates and therefore may be
referred to as “D” models. The controllers have

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backlit soft touch buttons and can control common
AV functions, including power, input switching,
and volume. The MLC RS series provides RS-232
serial and IR ports for universal display control. In
addition, a digital input and two relays are included

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for monitoring and controlling other systems in the
room. The MLC 64 RS VC D has a volume control
module that lets you raise and lower the volume on
an Extron amplifier with a remote volume control
port, such as the MPA 122 or MPA 401. The MLC 62 IR D provides IR control only. These products mount in one-gang or
two-gang junction boxes and include black and white color options.

NOTES: • Installation and service must be performed by authorized personnel only.

• Check that the installation meets the local and state regulatory requirements, including building, electrical,

and safety codes, as well as UL and ADA accessibility requirements.

• For full installation, configuration, and operation details, see the MLC 60 Series User Guide, available at

www.extron.com.

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Extron

MLC 62 RS DMLC 62 IR D

Go to www.extron.com for the

complete user guide and installation

instructions before connecting the

product to the power source.

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AUX

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MLC 64 RS VC D

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Installation Steps

GROUND

Rx

Tx

GROUND

1

COMMON

2

1

GROUND

Tx/IR

PORT B

GROUND

Tx

GROUND

+12 VDC

MLC 62 RS D

HOST/

CONFIG

INPUT

DIGITAL

N/O

RELAYS

IR/ S

RS-232

PORT A

PWR

12 V

0.4 A MAX

GROUND

Rx

Tx

GROUND

IR OUT

GROUND

+12 VDC

MLC 62 IR D

HOST/

PORT A

PWR

CONFIG

IR

12V

0.4 A MAX

VOL

GND

10V

MLC 64 RS VC D

1. Prepare the installation site. The MLC 60 D models can be installed in a standard US one-gang or two-gang electrical

wall box or mounting bracket (“mud ring”).

a. Install the electrical box, following the instructions provided with it, or the provided mounting bracket.

CAUTION: Ensure that the electrical box is properly grounded.

GROUND

Rx

Tx

GROUND

1

COMMON

2

1

GROUND

Tx/IR

GROUND

Tx

GROUND

+12 VDC

HOST/

CONFIG

INPUT

DIGITAL

N/O

RELAYS

IR/ S

PORT B

RS-232

PORT A

PWR

12 V

0.4 A MAX

b. Prepare and pull the cables through the electrical box or mounting bracket.

1

MLC 60 Decora Series • Setup Guide (Continued)

Rx

COMMON

1

1

2

HOST/

CONFIG

DIGITAL

INPUT

Tx

RELAYS

N/O

GROUND

GROUND

Use Allen Wrench

2. Change the faceplate, buttons, and volume control knob as

needed.

a. (MLC 64 RS VC D only) If changing the faceplate on the MLC 64

volume control module, first remove the volume knob:

1. Rotate the knob until the dot on the knob is aligned with

the bottom edge of the volume icon on the faceplate. The
notches in the edge of the knob and the notch in the edge of
the hole in the faceplate should be aligned, enabling you to
access the hex screw that holds the knob in place.

2. Insert the small Allen wrench (provided) into the opening.

3. Rotate the Allen wrench one-half turn counterclockwise to

loosen the hex screw, then lift off the knob.

b. Remove the faceplate from the MLC module as follows:

At the center top and bottom of the faceplate are tabs, which insert
into the slots on the MLC circuit board. Insert the flat end of a small
screwdriver into each of the holes at the top and bottom of the
faceplate and press each tab inward until the faceplate is released (see
the illustration at right).

c. If desired, replace the buttons in the faceplate as follows:

1. From the front of the faceplate, press the button membrane to be

replaced backward through its slots in the faceplate until it comes
free. If replacing the faceplate, repeat this step until all the buttons
are removed.

2. On the back of the faceplate, set the new button membrane at

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the desired location, with the the two pegs in the upper-left and
lower-right corners of the membrane (shown at left) in the holes
at opposite corners of the row. Press the pegs and buttons of the

Pegs (2)

membrane into the faceplate.

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Turn Knob to
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d. Reattach the faceplate as follows (see the illustration at right):

Making sure that both the MLC and the board are upright, line up the tabs
at the top and bottom of the faceplate with the slots on the board, and
press the faceplate into the board until the tabs snap into place. The pegs
in the upper-left and lower-right corners of the faceplate should be seated
in the two diagonal holes on the MLC board.

e. (MLC 64 RS VC D only) If changing the volume control knob, press the new

knob onto the spindle of the volume control module, making sure that
the spindle is turned all the way to the left and that the dot on the knob
is aligned with the bottom edge of the volume icon on the faceplate.
Tighten the hex screw by rotating it one-half turn clockwise.

3. Connect the cables to the rear panel ports.

Attach the cables and IR emitters to the rear panel of the MLC and to the

GROUND

IR/ S

Tx/IR

GROUND

Tx

RS-232

PORT A

GROUND

+12 VDC

PWR

12V

0.4 A MAX

display device or switcher as required.

z Port A RS-232 (RS models only): Connect a display device or switcher to

this serial port to be controlled via RS-232.

Ground ( )

Transmit (Tx)

Ground ( )

Receive (Rx)

Display Device

Insert peg
on faceplate
into hole.

Insert peg
on faceplate
into hole.

Insert tab on
faceplate
into slot.

Ta b

Peg

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MLC RS D Rear Panel