Installation User guide
2-5
MLC 226 IP Series • Installation
PRELIMINARY
Bottom/rear panel and cabling
MLC 226 IP Rear Panel 
MLC 226 IP Bottom Panel 
HOST 
CONTROL 
R 
1=D INPUT I/O
2=Tx 3=Rx 5=GND
38400, N, 8, 1
PRESS TAB WITH 
TWEEKER TO REMOVE 
INTERCOM 
AUDIO 
OUT 
LAN 
MLC 226 IP Rear Panel 
A B C D E
DISPLAY
RS-232/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
5  6 4 1  2  3 
7
a
  Display control (Display RS-232/IR) and display power sensor port
b
  CM/IR/SCP port
c
  Relay ports (24 V, 1 A)
d
  IR/Serial Output ports
e
  MLS connector
f
  PWR (power) connector
g
  Intercom connectors
Projector/display connections
a
  Display control (Display RS-232/IR) port (-5 VDC to +5 VDC) — 
Connect a cable between the projector or display and the left three poles of 
this 3.5 mm direct insertion captive screw connector for bidirectional RS-232 
control. Alternatively, the Tx/IR and Ground pins can be used for one-way 
infrared signal output. From this port, commands from a projector driver or 
user-defi ned command strings entered via Global Confi gurator can be sent to 
the display device.
Projector
Panel
MLC 226 IP
Bottom Panel
DISPLAY
RS-232/IR
Tx/IR
Rx
GROUND
PWR SNS
GROUND
+12V OUT
Ground ( )
Receive (Rx)
Tr ansmit (Tx)
Ground ( )
Receive (Rx)
Tr ansmit (Tx)
Bidirectional










