Extron electronic MLC 52 manual Wiring an IRL

Installation, cont’d

Wiring an IRL 20

The Extron IRL 20 is a hardwired IR signal receiver that can be used with the MLC 52 and the IR 452 remote control. The IRL 20 receives a signal via its front panel (or an IR sensor) from the IR 452 remote control, and outputs a modulated IR signal via an IR emitter or an IR Broadcaster.

Tx IR OUT GND IR IN GND + 12V

CModulated IR D

B	GND	B
A	+12 V	A

+12V

GND

CM

ModIR

SCP

+12V

GND

CM

ModIR

SCP

IR SNSR

GND

SIG

+5V

Control Connector	IRL 20
for MLC 52 Series
(Rear Panel)

+12 VDC A Ground ( ) B

External Power Supply (12 VDC, 1A max.)

Wiring an IRL 20

Wire and connect the IRL 20 to the MLC 52 as follows:

1.	If it has not been done, cut the required length of Extron CTL (Comm-Link)
	cable to go between the MLC 52 and the IRL 20. See appendix A,
	“Specifications, Part Numbers, and Accessories,” for cable part numbers.
		The maximum total distance between an Extron controller and the IRL 20 is
		150' (45.7 m).
2.	Attach a 3.5 mm, 5-pole captive screw connector to the end of the cable that
	will be plugged into the IRL 20.
3.	Connect the wires on the other end of the cable to the provided 3.5 mm 6-pole
	captive screw connector.
	•	A (MLC) to A (IR Link)
	•	B (MLC) to B (IR Link)
	•	C (MLC) to D (IR Link)
		Do not connect more than one IRL 20 or IR Link (either in parallel or in series)
		to an Extron device.
4.	Plug the 5-pole connector end of the cable into one of the IRL 20’s
	communications connectors.
5.	Plug the 6-pole connector end of the cable into the control port on the MLC 52
	back panel.
6.	Connect power to the MLC or the IRL 20.
		+12 VDC power is shared between the MLC 52 and the IRL 20 when they are
		connected. You can wire the power supply to either the MLC or the IRL 20.

2-14 MLC 52 Series MediaLink Controllers • Installation