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Page: 22 Model MRC88m / MRAUDIO8x8m
© 2009 Xantech Corporation
2. If mounted in an equipment cabinet or other confining location, allow at least 2 inches of space above the
top cover. Be sure there are large openings in the shelf below the unit and in the cabinet to allow the entry
of cool air and the escape of warm air.
3. If the cabinet contains other heat generating components or you are using several MRC88m's in a large
multi-zone system, you will have to pay even closer attention to adequate ventilation.
4. Do not hesitate to use fans (quiet, boxer type), if necessary, to ensure a constant flow of air through the
MRC88m's and the other heat generating components.
5. When mounting in a 19" (483mm) rack, adding a single RU (Rack Unit) spacer above and below the
MRC88m will improve convection in heavy use applications. Note: Rear support may be required.
[One Rack Unit size = 1-3/4" (44.5mm) in height].
6. In multi-zone installations, you will have large bundles of wire and cable to accommodate audio, video and
speaker connections. Be sure to allow enough room for the leads and dress them in such a manner so as
not to block airflow.
7. The MRC88m is designed for mounting on flat horizontal surfaces. When mounting into a 19" rack, use a
proper rack shelf or drawer (i.e. Middle Atlantic or equivalent)
8. Do not remove chassis feet. They are necessary to provide proper ventilation.
NOTE: You should consider some sort of rear support for rack mounted units when used in mobile
applications or when located in seismically active areas.
(EXPANDED)
Place Controllers on separate shelves or provide 2 inches of space between Controllers for ventilation.
MRC88M KEYPAD PHYSICAL LOCATION AND MOUNTING
(BASIC/ADVANCED/EXPANDED)
RJ45
Connector
Cat 5
Cable
MRC44
Keypad
Ground
Lug
To Earth Ground
Figure 6 - Mounting and Installing the MRC88m Keypad
Keypad mounting for the MRC88m Keypad does not require a junction box. The MRC88m keypad can be
mounted on drywall, lath & plaster, button board or other surfaces covering a hollow wall. Follow these simple
procedures to install the provided MRC88m mounting bracket and keypad:
NOTE: Check local electrical codes. Some areas require a backbox in certain applications. For installations that
require a back-box, see Xantech Part# MRCBOX. The MRC88m keypad will not fit in a standard 2-gang box.
The Xantech MRCBOX must be used in applications that require a backbox.
1. Cutting the hole
a. Mark the desired mounting location for the center of the keypad.