Product Category
IMPORTANT:
Go to www.extron.com for the
complete user guide and installation
instructions befor
e connecting the
pr
ce.
MLC 55 Series • Setup Guide
for MLC 55 RS and MLC 55 RS VC
The MLC 55 Series are keypad controllers with dual-color, backlit
buttons for common AV functions such as power, input selection,
and volume in single-display applications. RS-232 unidirectional
serial and IR ports provide universal display control.The
MLC 55 RS VC has a volume control module that lets you raise
and lower the volume on an Extron amplier with a remote volume
control port, such as the MPA 152 or MPA 401. These products
can be wall-mounted in one-gang or two-gang junction boxes or
using the provided mounting bracket (“mud ring”).
For full installation, conguration, and operation details, see the
MLC 55 Series User Guide, available at www.extron.com.
ATTENTION:
• Installation and service must be performed by authorized personnel only.
• L’installation et l’entretien doivent être effectués uniquement par un électricien qualié.
• All electrical installation should be performed by qualied personnel in accordance with local and national building
codes, re and safety codes, and local and national electrical codes.
• Toute installation électrique devrait être effectuée par un personnel qualié, conformément aux codes du bâtiment, aux
codes incendie et sécurité, et aux codes électriques locaux et nationaux.
• Ensure that the electrical box is properly grounded.
• Assurez vous que le boîtier d’encastrement est correctement mis à la terre.
Installation Steps
1. Prepare the site. The MLC 55 RS can be mounted to a standard US one-gang junction box or a one-gang mud ring
(provided). The MLC 55 RS VC can be mounted to a standard US two-gang junction box or a two-gang mud ring (provided).
a. Install the junction box, following the instructions provided with it. If using a mud ring, install it according to the
instructions in the MLC 55 Series User Guide.
b. Prepare and pull the cables through the junction box or mounting bracket.
2. If desired, remove and replace button labels. To replace a button label:
a. Remove the faceplate from the unit.
The MLC faceplate is held in place on the unit by four magnets at its
corners. Grasp the unit rmly with one hand and, with the other, pull the
faceplate off the unit starting with a corner.
b. Insert the small end of the provided pry tool into one of the four notches in
the corners of the clear button cap that contains the label to be changed.
Rotate the pry tool carefully to avoid damaging the button, until the cap
pops off of the diffuser.
1
DISPLAY
Extron
ON
PC
VIDEO
OFF
VOL
VOL
VOLUME
Extron
DISPLAY
ON
PC
VIDEO
OFF
LUME
LAPTOP
MUTE
Pry the clear cap
away from the
button at one corner.
Base
Insert the
button label.
Clear Button Cap
TEXT
Pry Tool