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

Product Category

Rear Panels

MUTE

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

DISPLAY

ON

VOLUME

OFF

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

PC

VIDEO

Extron

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.

DISPLAY

ON

OFF

VOLUME

VIDEO

PC

MUTE

LAPTOP

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.

DISPLAY

ON

OFF

PC

LAPTOP

VIDEO

AUX

Extron

MLC 64 RS VC D

VOLUME

VOLUME

MUTE

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

MUTE

LAPTOP

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.

DISPLAY

ON

VOLUME

VIDEO

Extron

OFF

PC

Turn Knob to
Expose Screw

VOLUME

to Loosen Screw

MUTE

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

DISPLAY

ON

VOLUME

PC

LAPTOP

OFF

VIDEO

MUTE

2

MLC RS D Rear Panel

Product Category

Rx

COMMON

1

1

2

HOST/

CONFIG

DIGITAL

INPUT

Tx

RELAYS

N/O

GROUND

GROUND

MLC RS D Rear

z Port B IR/S (RS models) or Port A IR (IR models): Connect a display device, switcher, or up to two IR emitters to

this port. On RS models, you can configure Port B IR/S for either serial or IR communication, using the MLC 60 Series
configuration program. On IR-only models, Port A IR supports only an IR connection.

GROUND

IR/ S

Tx/IR

PORT B

GROUND

Tx

RS-232

PORT A

GROUND

+12 VDC

PWR

12V

0.4 A MAX

MLC RS D Rear Panel

z Relays port (RS models only): The Relays port provides connections for two relays. Connect one or two devices

(such as a low-voltage controller and a motorized screen, shown in the example below) to this port. The relay ports
are normally open and rated for 24 VDC, 1 A (see the example below).

NOTE: If you are using both relay ports, connect the ground wires of both devices to common pin 3.

Ground ( )

IR Signal

50'

(15 m)

IR Emitter

GROUND

Rx

HOST/

CONFIG

Tx

GROUND

1

INPUT

DIGITAL

COMMON

2

N/O

RELAYS

1

GROUND

IR/ S

Tx/IR

PORT B

GROUND

Tx

MLC RS D Rear Panel

RS-232

X

Pin:

3
2
1

Ground ( )

Signal 110/220 V

Power
Supply

Low Voltage

Screen Control

Ground ( )

Motorized

Screen

z Digital Input port (RS models only) — The Digital Input port enables you to connect a switch or sensor to

control other devices in the room that are connected to the MLC serial, IR, or relay ports. The port measures the
high and low states of the connection between the switch or sensor and the connected device. For the voltage
thresholds, a voltage below 1.0 VDC is measured as logic low, and a voltage above 1.5 VDC as logic high. When a
threshold between the states is crossed (from high to low and vice versa), the selected action occurs.

By default, this port is configured with a 5 V pull-up for use with basic non-powered switches. If the device being
connected has its own power source, configure the port to disable the pull-up mode (see the configuration
program help file for port configuration procedures). To wire this port, see the example below.

Two-position Switch

GROUND

Rx

HOST/

CONFIG

Tx

GROUND

1

COMMON

2

z Wire the volume control module (MLC 64 RS VC D only) —

Connect the remote volume control port of an Extron amplifier
to the 3-pole captive screw connector on the rear panel of the
MLC 64 volume control module, as shown at right. No software

INPUT

DIGITAL

Panel

N/O

Pin:

2
1

Ground ( )

Digital Input

Vol/Mute
10V

123

Amplifier
Rear Panel

configuration is required for this module.

In the illustration at right, A = ground, B = Volume and mute
control, and C = 10 VDC reference voltage.

NOTES: • Choose an Extron amplifier that is capable of

remote volume control and muting. Not all
Extron amplifiers have remote volume control
ports. The MPA 122 or MPA 401 are examples of
the type of amplifier to use.

• Use shielded cable for audio connections to avoid

10 V

Vol/Mute

Ground

10V

VOL

GND

A B C

MLC 64 VCM

Rear Panel

inducing noise.

3

4. Connect and apply power. Connect the included power supply to the MLC as shown below, then connect power to

Rx

COMMON

1

1

2

HOST/

CONFIG

DIGITAL

INPUT

Tx

RELAYS

N/O

GROUND

GROUND

all devices in the system.

GROUND

Tx/IR

IR/ S

GROUND

Tx

RS-232

PORT A

GROUND

+12 VDC

PWR

12V

0.4 A MAX

MLC RS D Rear Panel

3/16”

(5 mm) Max.

Ground
12 VDC input

Power Supply

Output Cord

Ground all devices.

Ridges

Smooth

A

SECTION A–A

A

5. Configure the MLC buttons and ports (see the MLC 60 Series Configuration

Program Help File for the procedures):

a. Load and install the configuration software from the Extron website or the

provided DVD.

b. Obtain device drivers. Drivers for the devices that will be connected to the MLC

rear panel IR and serial ports can be obtained from the provided MLC software
DVD or downloaded from the Extron website at www.extron.com. You can
also obtain them using the configuration software if an Internet connection is
available.

c. Connect the MLC to the computer, using a USB A to USB mini B cable between

the MLC front panel USB port (shown at right) and the computer USB port.
Alternatively, use an RS-232 cable to connect the MLC rear panel Host/Config port
to the computer serial port.

d. Upload the configuration to the MLC.

NOTE: The volume control module of the MLC 64 RS VC D is standalone and requires no configuration.

6. Test the system to ensure that the MLC is functioning properly.

7. Mount the MLC to an electrical box or a Decora mounting bracket.

z Secure the MLC unit into a mounted electrical box using the provided screws in the oval slots at the top and

bottom of the unit (follow the instructions provided with the electrical box); or

z Mount the MLC to a Decora mounting bracket (see the MLC 60 Series User Guide for the procedure).

DISPLAY

ON

VOLUME

PC

LAPTOP

Extron

USB
Configuration
Port

OFF

VIDEO

MUTE

Extron USA - West
Headquarters

+800.633.9876

Inside USA/Canada Only

+1.714.491.1500
+1.714.491.1517 FAX

4

Extron USA - East

+800.633.9876

Inside USA/Canada Only

+1.919.863.1794
+1.919.863.1797 FAX

Extron Europe

+800.3987.6673

Inside Europe Only

+31.33.453.4040
+31.33.453.4050 FAX

Extron Asia

+800.7339.8766

Inside Asia Only

+65.6383.4400
+65.6383.4664 FAX

Extron Japan

+81.3.3511.7655
+81.3.3511.7656 FAX

Extron China

Sales: + 4000.EXTRON
+4000.398.766

Inside China Only

+86.21.3760.1568
+86.21.3760.1566 FAX

© 2011 Extron Electronics All rights reserved. www.extron.com

Extron Middle East

+971.4.2991800
+971.4.2991880 FAX

68-2166-50 Rev. A

11 11