Wiring for RS-232 Control (RS Models Only)
The MLC 60 Series RS models can send out RS-232 commands through the RS-232
port (Port A) or the IR/S port (Port B) to control a display device or switcher that is
connected to the port.
Connecting to Port A RS-232
Port A RS-232 is a unidirectional serial port to which you can connect a display device or
switcher for control via RS-232 as follows:
1.
Connect the Rx pin on the display device or switcher to the Tx pin of Port A RS-232.
2.
Connect the ground pin of the output device to the MLC Ground pin.
MLC RS D Rear Panel
Rx
Tx
GROUND
Tx/IR
COMMON
1
1
2
HOST/
CONFIG
PORT
A
RS-232
PORT
B
IR/
S
DIGITAL
INPUT
Tx
PW
R
12
V
0.4 A MAX
RELAYS
N/
O
GROUND
GROUND
GROUND
GROUND
+12 VDC
Ground ( )
Transmit (Tx)
Ground ( )
Receive (Rx)
Display Device
Figure 19.
Connecting a Display Device to Port A RS-232 of an MLC RS D
Refer to the communication sheets for your device drivers for information on compatible
baud rates and cabling type and distance. These communication sheets are accessed
via the MLC configuration software and also at
,
Download
tab (see
on page 50 or the configuration program help file to view the
communication sheets and download the device drivers).
Connecting to Port B IR/S
This port can be used for either IR or RS-232 unidirectional serial communication. To
control a display device or switcher via RS-232 from this port, connect the device as
follows:
1.
Connect the Rx pin on the display device or switcher to the Tx/IR pin of Port B IR/S.
2.
Connect the ground pin of the output device to the MLC Ground pin.
MLC RS D Rear Panel
Rx
Tx
GROUND
Tx/IR
COMMON
1
1
2
HOST/
CONFIG
PORT
A
RS-232
PORT
B
IR/
S
DIGITAL
INPU
T
Tx
PW
R
12
V
0.4 A MA
X
RELAYS
N/
O
GROUND
GROUND
GROUND
GROUND
+12 VDC
Ground ( )
Transmit (Tx/IR)
Ground ( )
Receive (Rx)
Display Device
Figure 20.
Connecting a Display Device to Port B IR/S of an MLC RS D
MLC 60 Series MediaLink Controllers • Features, Installation, and Operation
24