User Manual
Control Modules • Installation and Operation
Installation and Operation
2-2
UL Requirements
•. These units are not to be connected to a centralized DC power 
source or used beyond their rated voltage range.
•  These units must be installed in UL listed junction boxes.
N
  The UL approved electrical wall box is not included 
with the control module; the installer is responsible for 
obtaining and installing the box.
•  These units must be installed in accordance with the National 
Electrical Code and with local electrical codes.
Installation Overview
For installation and set up, refer to the relevant diagrams and 
sections in your MLC, System 5 IP or SCP user's manual:
1.  Attach the control module to an AAP wall plate or an 
Extron faceplate.
A  D B  C  E  A  D B  C  E 
ON 
1  2 
1  1 
2
  The same type and quantity of rear panel connectors and 
DIP switches shown above can be found on all models of 
the control modules. 
2.  Using the rear panel connectors (
a
), connect control 
modules together and to the MLC, System 5 IP or SCP 
unit (see Figure 2-2). Follow the wiring diagrams in the 
installation section of the user's manual of your MLC, 
System 5 IP, or SCP unit. 
N
Up to a total of four control module addresses in any 
combination of models can be daisy-chained together 
and connected.
N
  After connecting the control modules, you must turn 
the power to the MLC 206 off, then on for the device to 
recognize the module quantity and types. 
N
  Extron recommends that you connect the cable’s drain 
wire to the ground pin at both ends to reduce EMI 
interference.
Figure 2-1 — Typical module Rear panel layout
C
  Installation and service must be performed by 
authorized personnel only. These products should 
be used with UL approved electrical boxes.
Control Modules • Installation and Operation
2-3
E
D
C
B
A
SCP communication (IR)
Modulated IR (for IR Link)
Ground ( ) & drain wire
Control Module communication
+12 VDC
CTLP Cable Color Code:
= White
= Black and Drain 
= Violet
= Red
System
Switcher
A  B C  D E
+12V OUT
GROUND
CONT MOD
IR IN
SCP COM
E
D
C
B
SCP Communication
Modulated IR
Control Module Communication
A
+12 VDC
200' (61 m) max. Cable Length
(using Extron Comm-Link Cable )
SCP
B
A
C
E
Not all wires need to be connected (accessory dependent).
Control 
Module
Maximum = 
4 Control Module 
Addresses
Ground ( ) (connect drain wire, both devices)
System Switcher, SCP and Control Module wiring
A  B C  D E
+12V OUT
GROUND
CONT MOD
IR IN
SCP COM
E
D
C
B
SCP Communication
Modulated IR
Ground ( ) (connect drain wire, both devices)
Control Module Communication
A
+12 VDC
200' (61 m) max. Cable Length
(using Extron Comm-Link Cable)
Control 
Module
Maximum = 
4 Control Module 
Addresses
Not all wires to and from the Control Module 
are necessary (accessory dependent).
MLC and Control Module wiring
MLC
3.  Connect an IR Emitter or IR Broadcaster to the MLC or 
System 5 IP's IR output port (i.e., projector control port, 
IR/Serial Port or Display/Source), maximum four emitters 
(one per module address).
4.  Set the DIP switches (
b
) on each control module’s 
circuit board to identify the address of each module (see 
illustrations below). Each module must have a unique 
address. Note the direction of the arrow on the switch.
ON
1 2 3 4
ON
1 2
Address DIP switches can be 4-position or 
2-position, but only positions 1 and 2 are used.
1, 2 — Control module address identification 
ON
1 2
ON
1 2
1 and 2 down (off) = 
address 0, control module #1
1 up (on), 2 down (off) = 
address 1, control module #2
ON
1 2
ON
1 2
1 down (off), 2 up (on) = 
address 2, control module #3
1 up (on), 2 up (on) = 
address 3, control module #4
3, 4 — Not used 
Figure 2-2 — Typical Control Module wiring










