Xantech MRKP1E Internal IR Receiver, Installation, Compatible Handheld remotes

Internal IR Receiver

The internal IR receiver is located beneath the center of the keypad’s face plate. The internal IR receiver receives IR commands for the MRKP1E and for the MRC88m. It will also pass-thru IR remote control commands to audio sources, via an emitter, to each of the sources connected to the MRC88m. The internal IR receiver is interference friendly. However, some optically noisy environments may require the use of an external IR receiver. (See Figure 3.2 for details on using an external IR receiver)

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Figure 3.1: Internal IR Receiver

Installation

The MRKP1E is designed to mount in a standard single-gang electrical back- box (J Box – see Specifications sections for details). Typical mounting height is 56-60 inches (1.53 meters) from the floor to the bottom of the frame. This provides optimum viewing for the largest number of people.

Route the CAT-5 cable from the MRC88m into the back of the electrical back- box, terminate it with an RJ-45 connector after it is passed through the electrical back-box. Connect them to the appropriate RJ-45 connector on the rear of the MRKP1E (“CONTROLLER” for connecting to MRC88m, or “EXTENSION” if connecting to an extension keypad). If using an IR Receiver, strip the ends of three conductors of the IR receiver’s cable and insert into the appropriate terminals of the IR Input terminal block shown in Figure 3.2.

Once connections are made, mount the MRKP1E in to the electrical back-box using the two provided screws. Mount the Trim Plate Bracket as shown in the Figure 2.5 on the next page, and then snap the Screw-less Trim Plate in place.

Figure 2.4: MRC88m – MRKP1E Pin-out diagram for Cat-5 cable

(T568B configuration)

RJ45 Connector at

Controller/Amplifier	Wire Color	Pin #	Signal
	white/orange	1	485	+
	orange	2	485	-
	white/green	3	12V RET
	blue	4	IR RET
	white/blue	5	IR
	green	6	+12V
	white/brown	7	Attn. 485
	brown	8	IR Loop Back

Compatible Handheld remotes

The MRKP1E’s minimal design necessitated the presence of a minimum number of buttons. As a result, a handheld remote controller, such as a Xantech RC68 or MREM is required for accessing other control functions of the source such as navigation, menu, and transport controls. Other programmable Xantech remotes such as XTR39 can also be used. The list of RC68 codes is available at www.xantech.com/Controls/KeypadsRemotes/Remotes/MREM, in the Products page, under “MREM Code List”.

(Note: RC68 commands may not be used with projects created in Quick ConfigTM)

Cat 5

Cable RJ45 Connector

at Keypad

Wire Color	Pin #	Signal
white/orange	1	485	+
orange	2	485	-
white/green	3	12V RET
blue	4	IR RET
white/blue	5	IR
green	6	+12V
white/brown	7	Attn. 485
brown	8	IR Loop Back

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