Extron electronic MLC 62 RS EU, MLC 62 RS MK User Manual

MLC 60 Series • Setup Guide

for the MLC 62 RS EU and the MLC 62 RS MK

Product Category

IMPORTANT:

Go to www.extron.com for the

complete user guide and installation

instructions before connecting the

product to the power source.

The Extron MLC 62 RS EU and the MLC 62 RS MK
are keypad controllers for use in classrooms and
meeting facilities. The EU model attaches to a
single size European electrical junction box with a

DISPLAY

ON

VOLUME

OFF

60 mm mounting center; the MK model mounts to
a single size MK junction box. The controllers have
backlit soft touch buttons and can control common
AV functions, including power, input switching, and
volume. Both models provide RS-232 serial and IR
ports for universal display control. A digital input

PC VIDEO

LAPTOP MUTE

Extron

and two relays enable monitoring and controlling
of other devices in the room. Both models have
six-button and eight-button options.

MLC 62 RS EU

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

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

www.extron.com.

Installation Steps

1. Prepare the installation site.

The MLC 62 EU and MK controllers can be installed in a
standard EU or MK one-gang electrical wall box:

a. Install the electrical box, following the instructions

provided with it.

CAUTION: Ensure that the junction box is

properly grounded.

R

12

2

1

RELAYS

N/O

INPUT

1

DISPLAY

ON

OFF

VOLUME

PC

VIDEO

MUTE

LAPTOP

Extron

MLC 62 RS MK

Tx/
IR

PORT B

IR/ S

Rx

PORT A

CONFIG
HOST/

Tx

Tx

RS-232

0.4 A max

12 V

PWR

+

C

DIGITAL

b. Prepare and pull the cables through the electrical

box.

2. (Optional) Change the faceplate and buttons as needed.

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

i. On the right and left edges of the faceplate are two pairs of slots, into

which two small tabs on either side of the MLC fit. Insert the flat end
of a small screwdriver into each side slot (as shown at right) and press
inward until the tab is released from its slot.

ii. Lift the faceplate off the MLC circuit board.

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

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

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

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

Button
Membrane

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

MUTE

LAPTOP

iii. Repeat step 2 b as needed.

Pegs (2)

Rear Panel

ON

PC

LAPTOP

DISPLAY

VOLUME

OFF

VIDEO

MUTE

Left Side Panel

Slot

Peg

Peg

1

MLC 62 EU and MLC 62 MK • Setup Guide (Continued)

.

c. Reattach or replace the faceplate as follows (see the illustration

at right):

i. Making sure that both the MLC and the faceplate are

upright, hold the MLC with its circuit board against the
back of the faceplate, aligning the two tabs on each side of
the MLC with the two slots on each side of the faceplate.

ii. Each tab has a ridge that must snap into a slot on the side

of the MLC. Press the MLC into the faceplate until the
ridges on all four tabs snap into place.

3. Attach the metal mounting bracket to the junction box.

a. Place the metal bracket on the electrical box, aligning the slotted holes in

the bracket with the round holes on the box.

NOTE: To keep the MLC securely in place and prevent it from being

easily pulled from its mounting, ensure that the side of the
bracket with the word “Front” engraved on it faces out
(away from the electrical box). If you want to be able to
remove the MLC easily from its mounting, attach the bracket
with “Front” facing inward, toward the junction box.

ON

PC

LAPTOP

DISPLAY

VOLUME

OFF

VIDEO

MUTE

Slot

Electrical
Junction Box

Ridge on tab
snaps into slot

b. Insert two of the included screws in the slots at the top and bottom of the

bracket as shown at right.

c. Tighten the screws to secure the bracket to the mounting surface.

4. Connect the cables to the MLC rear panel ports.

Attach the cables and IR emitters to the rear panel of the MLC
and to the display device or switcher as required.

z Port A RS-232: Connect a display device or

switcher to this serial port to control the device via
RS-232 (see the illustration at right).

z Port B IR/S: Connect a display device, switcher,

or up to two IR emitters to this port (see the
illustration at right). You can configure this port
for either serial or IR communication using the
MLC 60 Series Configuration Program.

Tx

RS-232

PORT A

IR/ S

Tx/

IR

PORT B

C

2

1

N/O

RELAYS

MLC RS EU or MK Rear Panel

12 V

0.4 A max

PWR

12

CONFIG

HOST/

DIGITAL

INPUT

+

Tx

Rx

1

R

Tx

Tx/

C

2

1

IR

RS-232

PORT A

IR/ S

PORT B

N/O

RELAYS

MLC RS EU or MK Rear Panel

0.4 A max

12

3/16”
(5 mm) Max.

12 V

PWR

+

Tx

CONFIG

HOST/

Rx

DIGITAL

INPUT

1

R

Ground

IR Signal

50'

(15 m max.)

Metal Bracket

Ground

Transmit (Tx)

Ground ( )

Receive (Rx)

Display Device

IR Emitter

z Relay ports: The relay ports provide

connections for two relays. Connect one
or two devices (such as a low-voltage
controller and a motorized screen, shown
in the example at right) to this port. The
relay ports are normally open and rated
for 24 VDC, 1 A).

NOTE: If you use both relay ports,

connect the ground wires
of both devices to common
pin 3.

12 V

0.4 A max

PWR

12

CONFIG

HOST/

DIGITAL

INPUT

+

Tx

Rx

1

R

Ground

Tx

Tx/

C

2

1

IR

RS-232

PORT A

IR/ S

PORT B

N/O

RELAYS

MLC 62 RS EU or MK Rear Panel

Signal

Power
Supply

Low Voltage

Screen Control

Ground

110/220 V

Motorized

Screen

2