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Preliminar y, Wiring the irl 20, 7 dvcm 50 • installation – Extron Electronics DVCM 50 User’s Manual User Manual

Page 15

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2-7

DVCM 50 • Installation

PRELIMINAR

Y

Wiring the IRL 20

The Extron IRL 20 is a hard-wired IR signal receiver, which can be used with the
DVCM 50 and the IR 452 remote control. The IRL 20 receives a signal via its front
panel from the IR 452, which instructs the DVCM 50 to issue an IR command.

Wire and connect the IRL 20 to the DVCM 50 as described below.

+12

V

G

N

D

C

M

ModIR

SCP

+12V

G

N

D

C

M

ModIR

SCP

IR SNSR

IRL 20

GND

SIG

+5V

+12 VDC

Ground ( )

A
B

External power supply
(12 VDC, 1A max.)

1

1

2

3

8

4

2

1

E

4

ON

2 3 4

IR OUT

GND

IR IN

GND

+ 12V

GND

Rx

Tx

D
B
A

+12 V

GND

Mod IR

C
B
A

E D C B A

Connecting the DVCM 50 and the IRL 20

1

.

If it was not already done, cut the required length of Extron Comm-Link
cable to go between the DVCM and the IRL 20. See appendix A for cable part
numbers. The maximum total distance between an Extron control module
and the IRL 20 is 150’ (45 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 5-pole
captive screw connector as described below, and plug this connector into the
DVCM.

A (DVCM) to A (IRL 20)

B (DVCM) to B (IRL 20)

C (DVCM) to D (IRL 20)

Do not connect more than one IRL 20 or IR Link (either in parallel or in series)

to the DVCM 50.

4

.

Plug the 5-pole connector end of the cable that you wired in step 2 into one of
the IRL 20’s communications connectors.

5

.

Connect power to the DVCM 50 or to the IRL 20.

+12 VDC power is shared between the DVCM 50 and the IRL 20 when they

are connected. You can wire the power supply to either the DVCM or the
IRL 20.