Expanded, Mounting and Installing the MRC88 Keypad

Page: 22

Model MRC88

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 MRC88'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 MRC88'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 MRC88 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 MRC88 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.

MRC88 KEYPAD PHYSICAL LOCATION AND MOUNTING (BASIC/ADVANCED/EXPANDED)

MRC44

Keypad

RJ45

Connector

Ground

Lug

To Earth Ground

Cat 5

Cable

Figure 6 - Mounting and Installing the MRC88 Keypad

Keypad mounting for the MRC88 Keypad does not require a junction box. The MRC88 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 MRC88 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 MRC88 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.