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IMPORTANT:
Go to www.extron.com for the
complete user guide and installation
instructions befor
e connecting the
pr
ce.
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MLC 55 Series • Setup Guide
for MLC 55 RS EU, MLC 55 RS EU V, and MLC 55 RS MK
The MLC 55 RS EU, MLC 55 RS EU V, and MLC 55 RS MK are keypad controllers with dual-color, backlit
buttons, for common AV functions such as power, input selection, and volume in single-display applications.
An RS-232 unidirectional serial port and an IR port provide universal display control.
The EU models can be mounted in a
standard EU junction box, while the
RS MK model is designed to be mounted
in an external wall box for UK, Singapore,
Hong Kong, and other markets that use
MK-type junction boxes.
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
NOTE: The MK model may not t in some in-wall junction boxes.
1. Prepare the installation site. The MLC 55 RS MK (United Kingdom model)
can be wall-mounted in a standard one-gang UK external junction box. The
European models, MLC 55 RS EU and MLC 55 RS EU V, can be mounted in a
standard two-gang EU junction box: the RS EU model is mounted horizontally,
while the RS EU V model is mounted vertically.
a. Install the appropriate junction box, following the instructions provided with
it.
b. Prepare and pull the cables through the junction box.
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 hand, 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 plastic button cap containing the label to be changed. Rotate
the pry tool carefully to avoid damaging the button, until the cap pops off of the diffuser
(see the illustrations at right).
c. Remove the current label from inside the button cap and replace it with the new one.
Tip: To avoid damaging the button label when removing it, turn the button cap upside
down and tap it on a hard surface until the label falls out. Alternatively, insert into
the button cap a lightly adhesive tape or gum product that will temporarily adhere
to the label, to pick up and pull the label out.
d. Replace the button cap with the label onto the diffuser and press it until it snaps into place.
Pry the clear cap
away from the
button at one corner.
Base
Insert the
button label.
Clear Button Cap
TEXT
Pry Tool