Extron electronic MLC 62 IR D manual Wiring for IR Control, Wiring the Relays Port RS Models Only

Wiring for IR Control

To control devices via infrared (IR) commands from the MLC, connect one or two IR emitters to the IR/S port (RS models) or the IR port (IR model). The IR and IR/S ports provide unidirectional IR signal output to control a display, projector, switcher, or other device such as a VCR or DVD player.

You can connect one or two single IR emitters or one dual IR emitter to the IR or IR/S port

to control one or two devices. Because the MLC captive screw plugs have small openings that accept just one wire per pole, to connect two IR emitters to the MLC, insert one ground wire (black) and one IR signal wire (black with a white stripe) in the MLC 62 IR or

IR/S port, then connect the IR emitters to those wires, as shown below.

VCR

			IR Signal	(+)
	(–)	(–)		(–)
Ground
		(+)		(+)
IR Signal			Ground
	(+)			(–)

One Dual IR Emitter Two Single IR Emitters DVD Player

Legend

(–)Black Wire

(+) Black Wire with White Stripe

Figure 23. IR Emitters for the MLC 60 Series

For IR control, there can be a maximum of 50 feet (15 m) between the IR or IR/S port and the IR emitters.

Example: The illustration on the next page shows a single IR emitter connected to the IR/S port of an MLC 62 RS D or an MLC 64 RS D.

1

GROUND Tx/IR

GROUND

Tx

GROUND +12 VDC

PWR PORT A PORT B R 12V RS-232 IR/ S 0.4 A MAX

Ground ( )

IR Signal

50'

(15 m)

IR Emitter

MLC RS D Rear Panel

Figure 24. Connecting an IR Emitter to the IR/S Port of an MLC RS D

Wiring the Relays Port (RS Models Only)

Connect one or two devices such as room lights, a projector lift, or a motorized screen (shown in the example on the next page) to the Relays port. This port accommodates two relay connections.

To connect a device to one of the relay ports:

1.Connect the ground wire of the device to pin 3 of the provided 3-pole captive screw connector.

2.Connect the signal wire of the device to pin 1 or 2 of the 3-pole connector.

3.Plug the 3-pole connector into the MLC 3-pole captive screw Relays port.

Example: In the illustration on the next page, a low-voltage controller connected to a motorized screen has been wired to pins 2 and 3 of the provided 3-pole captive screw plug. When this connector is plugged into the rear panel Relays port, the device will be connected to the MLC relay port 2 (pins 2 and Common of the MLC 3-pole Relays connector).

MLC 60 Series MediaLink Controllers • Features, Installation, and Operation 23