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2-11MediaLink Switchers • Installation
Control connections
12
MLC/IR port — This port allows you to provide remote control of the
switcher. Connect a cable between this port and an optional Extron MLC 206
MediaLink Controller or an optional IR Link IR signal repeater.
• The MLC provides remote control of input switching and volume.
• The IR Link accepts modulated IR signals from a remote control so the
remote control can be used for selecting the switcher’s inputs.
Extron Comm-Link cable is recommended for this connection. If you use
Comm-Link cable, the switcher and controller can be up to 250 feet (76.2 m)
apart. Wire the captive screw connector for connection to either an IR Link or
an MLC 206 as shown below.
MLS 506MA Rear Panel
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
MLC/IR
ABC
MLS 506MA Rear Panel
MediaLink Switcher to an IR Link
MediaLink Switcher to an MLC 206
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
Switcher
rear panel
MLC/IR port
IR Link
port
NOTE If you use cable that has a
drain wire, tie the drain wire
to ground at both ends.
ABCDEABC
IR
Display/Source Control
Extron Switcher Control
Relays IR/RCM
RS-232
DE ABC ABD
1A 1B2A 2B3A 3B
123456
Tally Out
MLS
/Power
33-644-01 A
07 01
Printed in the
USA
MLC 206 Bottom Panel
Ground ( )
+12VDC
IR (IR Link)
C
IR Link
MLA-Remote
SIGNAL
IR LINK
MLC/IR
ABC
MediaLink
Switcher
rear panel
MLC/IR port
NOTE The switcher provides
power to the controller.
MLC
MLS/Power
port
Ground ( )
+12VDC
Transmit (Tx)
B
Receive (Rx)
A
AB
MLS
/
Power
Transmit (Tx)
Receive (Rx)
+12VDC
Ground ( )
B
A
IR
ABCDE
D
If the switcher is connected to an MLC 206 controller via the MLC/IR port, do
not connect an RS-232 device to the MLS’s 9-pin RS-232/Contact Closure
port. The 9-pin D and 5-pole captive screw connectors are both for RS-232
control.
Connect devices to both ports at the same time only if
• the 9-pin connector is used for contact closure and
• the MLC/IR port is used for RS-232.
13
RS-232/Contact Closure port — This port can function as an RS-232 port or as
a contact closure port. Do not connect RS-232 devices to both this and the
MLC/IR port. See the above note.