Installation User guide
Installation, cont’d
MLC 226 IP Series • Installation
2-12
PRELIMINARY
MLC/IR 
A B C 
MLS 506MA Rear Panel
Connecting an MLC 226 IP 
to a MediaLink Switcher and an external 
p
ower su
pp
l
y
100-240V 0.2A 50/60 Hz
.5A MAX
INPUT 1
VIDEO
Y
C
R-Y
B-Y
YUV
Y
R-Y
B-Y
VIDEO
S-VIDEO
Y
C
INPUT 2
VIDEO
Y
C
R-Y
B-Y
INPUT 3
VIDEO
Y
C
R-Y
B-Y
INPUT 4
RH/
HV
G
V
B
INPUT 5
RH/
HV
G
V
B
INPUT 6
RH/
HV
G
V
B
RGB
RH/
HV
G
V
B
4 ohm
MONO AMPLIFIED OUTPUT
COMM 8 ohm 70V
LR LR LR
LR
AUX/MIXEFFECTS
LR
SEND
LR
RETURN
MLC/IR RS232
CONTACT CLOSURE
ABC
AUDIO OUT
FIXED VARIABLE
LRLR
L LRR LR
MediaLink 
Switcher's 
rear panel 
MLC/IR port 
NOTE  You must connect 
a ground wire 
between the MLC 
and MLS. 
MLC's 
MLS and 
Power 
ports 
NOTE  If you use cable that 
has a drain wire, tie 
the drain wire to 
ground at both 
ends. 
A B C D E
DISPLAY
RS-23 2/IR RS-232 12V
CM/IR/SCP
A B C D E
MLS  PWR
AB
Tx/IR
Rx
GROUND
PWR SN S
GROUND
+12V OUT
Rx
Tx
GROUND
GROUND
+12V IN
+12V OUT
GROUND
CONT MOD
IR IN
SCP COM
NORMALLY OPEN
1 2
COMMON
COMMON
COMMON
GROUND
Tx/IR
Tx/IR
Tx/IR
GROUND
GROUND
A
RELAYS
IR/SERIAL OUT
3  4
B
5 6
CA BC
MLC 226 IP
Bottom Panel
RS-232 12V 
MLS  PWR 
A B 
Rx 
Tx 
GROUND 
GROUND 
+12V IN 
Ground ( ) 
Transmit (Tx) 
B 
Receive (Rx) 
A 
Transmit (Tx) 
Receive (Rx) 
B 
A 
Ground ( ) 
+12 VDC input 
Ground all devices. 
External 
Power Supply 
(12 VDC, 1 A max.) 
External 
Power Supply 
Power connection
f
  PWR (power) connector — To provide power to the MLC, connect a cable 
between this port and a 12 VDC, 1 amp (maximum) power supply. See the 
following diagram.
N
  Power the controller via an external power supply, not from an Extron switcher.  
The controller requires a separate 12 VDC power supply.
Connecting an MLC 226 IP to an external power supply
RS-232 12V 
MLS  PWR 
A B 
Rx 
Tx 
GROUND 
GROUND 
+12V IN 
Ground ( ) 
+12 VDC input 
Ground all devices. 
External
Power Supply
(12 VDC, 1 A max.)
N
  Check the power supply’s 
polarity before 
connecting it 
to the MLC. 
See the 
illustration at 
right.
0.2” 
(5 mm) 
MAX.
MLC's
Power
Port
12V 
PWR 
GROUND 
+12V IN 
Power Supply Output Cord
End View of Power
Supply Output Cord
AA
SECTION A–A
0.2” 
(5 mm) 
MAX.
MLC's
Power
Port
12V 
PWR 
GROUND 
+12V IN 
Power Supply Output Cord
End View of Power
Supply Output Cord
AA
SECTION A–A










