Installation and operation, cont’d

6" Deep Rack Shelf

1/4 Rack Width False Front

Face Plate

MPA 181T

(2) 4-40 x 3/16" screws

MPA 181T

Figure 2-2 — Mounting the MPA 181T on the

RSU shelf

Under-desk mounting

In addition to using the MPA 181T unit on a rack or projector, it can also be mounted under furniture (or under a desk). Mount the unit by using the optional mounting kit (part #70-077-01) for furniture, as follows:

1.	Attach the mounting brackets to the amplifier with the
	machine screws provided (figure 2-3).
2.	Hold the amplifier with the attached brackets against the
	underside of the table or other furniture. Mark the
	location of the screw holes of the bracket on the mounting
	surface.
3.	Drill 3/32" (2 mm) diameter pilot holes, 1/4" (6.3 mm)
	deep in the mounting surface at the marked screw
	locations.
4.	Insert #8 wood screws into the four pilot holes. Tighten
	each screw into the mounting surface until just less than
	1/4" of the screw head protrudes.
5.	Align the mounting screws with the slots in the brackets
	and place the interface against the surface, with the
	screws through the bracket slots.
6.	Slide the unit slightly forward or back, then tighten all
	four screws to secure it in place.

#8 Wood Screw (2 Plcs)

Each Side Drill pilot holes — 3/32” (2.4 mm) dia.

1/4” (6.3 mm) deep

MPA	181T

Machine Screw (2 Plcs)

Each Side

Figure 2-3 — Under-desk mounting

Projector mounting

In addition to mounting the MPA 181T unit to a rack or under furniture, it can also be projector mounted using the optional kits PMK 350 (part #70-563-02, -03) or PMK 300 (part #70-374- 01). See figures 2-4 and 2-5 on the following page.

To projector mount the MPA 181T, do the following:

1.	If necessary, remove the feet from the bottom of the device
	to be installed.
2.	Mount the MPA 181T to one of the bracket’s three
	mounting plates. The device can be horizontally mounted
	facing either up or down, whichever is most convenient.
	See the illustrations on the following page.

Use two supplied 4-40 x 3/16 screws in opposite (diagonal) corners to secure the device to the bracket.

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MPA 181T • Installation and Operation

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