Cabling

Installation and Operation, cont’d

Rear Panel Connectors and Switches

1 1

A B C D E

2	1

The same type and quantity of connectors and DIP switches shown above can be found on the rear panels of all models of the control modules.

1 Communications connectors — Use these connectors to connect

control modules together and to connect them to the MLC and

to an optional IR Link infrared repeater. Both connectors

function the same way, so they are interchangeable.

Plug one end of an Extron Comm-Link cable into one of these

For each control module to be connected to an MLC, set the rear panel DIP switches, then follow these steps:

1.If it hasn’t already been done when the wall box was installed, cut a length of Extron Comm-Link cable to go between the MLC and the control module.

2.Using the following diagram as a guide, attach a 3.5 mm,

5-pole captive screw connector to the end of the cable that will be plugged into the control module, and connect wires on the other end of the cable to the MLC’s IR/RCM port (a 4-pole direct insertion captive screw connector).

Wire both ends of the cable identically (pin A to pin A, pin B to pin B, etc.).

Control	A B C D E
Control
Module
connector

RCM Control

Module(s)

ROOM CONTROL

3.5 mm, 5-pole captive screw connectors, and plug the other end

into a connector on another control module or an IR Link, or

connect those wires to the direct insertion IR/RCM captive screw

connector of an MLC. Do not install more than one IR Link.

2 DIP switches — Set these switches to identify the address of

each module. Each module must have a unique address. Note

the direction of the arrow on the switch.

Address DIP switches can be 4-position or

2-position, but only 1 and 2 are used.

1 2

1 2 3 4

A	+12VDC		A
B	Ground (	)	B

CControl signal (RCM/ C IRCM)

MLC

IR / RCM

port

A B C D

IR / RCM

MLC 206 to a Relay Control Module

VCR

DVD

Laptop

Extron

MLC 206

1, 2 — Control module address identification — See the follow- ing illustrations for the appropriate settings for each address.

3, 4 — Not used

1 and 2 down (off) = address 0, control module #1

1 2

1 up (on), 2 down (off) = address 1, control module #2

1 2

1 down (off), 2 up (on) = address 2, control module #3

1 2

1 up (on), 2 up (on) = address 3, control module #4

1 2

DIP switch settings

2-4 Relay Control Modules • Installation and Operation

Only three wires are required, but use four wires (A, B, C, D) if an IR Link infrared repeater will be daisy chained with the control modules. Refer to the IR Link User’s Manual for details.

Do not install more than one IR Link in a MediaLink system. Also, do not connect more than four control modules (RCMs, ACMs, IRCMs) at a time to an MLC.

The MLC contains three relays, so you may install a maximum of one RCM-SC or one RCM-SCLT in a system with an MLC.

Relay Control Modules • Installation and Operation

2-5