Extron Electronics MLC 104 Plus Series - Manual (Page 151)

6-11 MLC 104 Plus Series • Labeling, installation, and Mounting
PRELIMINAR
Y
UL rack mounting guidelines
The following Underwriters Laboratories (UL) guidelines pertain to the safe
installation of the MLC in a rack.
1. Elevated operating ambient temperature — If installed in a closed or
multi-unit rack assembly, the operating ambient temperature of the rack
environment may be greater than room ambient temperature. Therefore,
install the MLC in an environment compatible with the maximum ambient
temperature (Tma = +122 °F, +50 °C) specified by Extron.
2. Reduced air flow — Install the equipment in a rack so that the amount of air
flow required for safe operation of the equipment is not compromised.
3. Mechanical loading — Mount the equipment in the rack so that a hazardous
condition is not achieved due to uneven mechanical loading.
4. Circuit overloading — Connect the equipment to the supply circuit and
consider the effect that circuit overloading might have on overcurrent
protection and supply wiring. Appropriate consideration of equipment
nameplate ratings should be used when addressing this concern.
5. Reliable earthing (grounding) — Maintain reliable grounding of rack-
mounted equipment. Pay particular attention to supply connections other
than direct connections to the branch circuit (e.g. use of power strips).
Mounting the MLC in a Euro Channel
1. Remove the four faceplate attachment screws and remove the original
faceplate, if applicable.
2. Attach the optional MLM 104 EC or MLM 104 AAP EC faceplate to the MLC
with the screws removed in step 1.
3. With power disconnected at the source, insert the MLC into the Euro Channel.
For wider types of Euro Channels, you may need to insert a spacer plate first.
4. Mount the controller to the Euro Channel by attaching the faceplate to the two
backing plates using four #4-40 mounting screws. See the illustration below.
N Make sure that the Euro Channel is grounded to an earth ground before
completing the installation.
Extron
MLC 104 IP Plus
with MLM 104 EC
Euro Channel
Backing Plate
Ext
ron
CO NF IG
PR OJECT
OR
VOL UME
1
2
3
4
ON
OF F
VID EO
AU X
VID EO
PC
IMA GE MU TE ON
OFF
VC R
DVD
PC Me dia Lin k
Mounting the MLC to a Euro Channel