Xantech MRKP1E Rear Connectors, Item Description, External IR Receiver Connections

MRKP1E – REAR CONNECTORS

6	1	2
	EXPANSION	CONTROLLER

5 4 3

Figure 2.3: Rear connector board of MRKP1E Keypad

ITEM DESCRIPTION

1Expansion RJ-45 Port

2Controller RJ-45 Port

3External IR Input terminal

4RS485 termination

5IR Emitter output

6	Internal IR Sensor Enable/Disable
	jumper (remove to Disable)

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External IR Receiver Connections

Use an external Xantech IR Receiver in cases where a hand-held remote needs to be pointed somewhere other than at the MRKP1E or in cases where additional interference immunity requires the use of a different type of IR receiver or IR receiver mounting location. Typical IR Receiver locations are near a TV or other equipment such as a Local Source (DVD Player, A/V Receiver,…etc.). A CAT-5 cable can be used to exten d the IR receiver’s wire, if necessary. Refer to the bottom of the Specifications page for wiring instruction when using CAT-5 cable to extend the IR signal..

By default, the MRKP1E External and Internal IR receivers are both active. Having both active, in some cases, can cause issues with IR signal reflection and/or multiple processing of the same IR command. Therefore, in such specific cases it is advisable to disable the Internal IR when using an external IR receiver (Internal IR can be disabled by removing jumper clip on item #6 of Figure 2.3).

To MRC88m Zone Port

To Expansion Keypad

NOTE: See polarity markings near connecting block for proper wiring of IR receiver and IR emitter

Xantech IR Emitter	Xantech External IR
	receiver

Figure 3.2: MRKP1E to External IR Connections

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