User Manual

AT-UHD-CAT-2
23
In pass-through mode, RS-232 commands are passed-through the AT-UHD-CAT-2, transmitted over HDBaseT to a
receiver unit, and then to the display (sink) device. Note that each RS-232 / IR port is assigned to an HDBaseT OUT
port. This assignment is xed and cannot be changed, as shown in the table below.
Pass-through mode
RS-232
(RS-232 / IR 2)
HDBaseT
(HDBaseT OUT 2)
RS-232
2
COM
NC
NO
COM
NC
NO
COM
NC
NO
COM
NC
NO
+12V
SIG
GND
+12V
SIG
GND
+12V
SIG
GND
+12V
SIG
GND
1
COMPONENT
HDMI
1
2
3
4
5
6
SERIAL 1
IR OUT
SERIAL 2
L
R
DIGITAL
COAX OUT
AUDIO OUT AUDIO IN
ETHERNET
2 3 4
VIDEO OUT
48V DC
FACTORY
RESET
AT-UHD-EX-70C-RX
Display
Control System
AT-UHD-CAT-2
21OUTIN
HDMI HDBaseT LOCK
EDIDPOWER
AT-UHD-CAT-2
INT LEARN
POWER
LINKFW
AT-UHD-EX-70C-RX
1. Connect the RS-232 cable from the control system to the desired RS-232 / IR port on the AT-UHD-CAT-2.
Refer to Cable Assembly (page 22) for instructions on preparing the cable.
2. Connect an Ethernet cable from the desired HDBaseT OUT port to a receiver. In this example, the HDBaseT
cable is connected from HDBaseT OUT 2 to an AT-UHD-100CE-RX receiver (the RS-232 cable is connected
from the control system to the RS-232 / IR 2 port).
3. Connect an RS-232 cable between the display (sink) and the receiver.
4. Adjust the RS-232 settings on the control system to match the requirements of the sink device. For example, if
the RS-232 settings for the display device are 9600, N, 8, 1, then set the control system to the same settings.
If the control system and sink device settings do not match, then RS-232 control will not function.
Advanced Operation
RS-232 / IR Port HDBaseT Port
RS-232 / IR 1 HDBaseT OUT 1
RS-232 / IR 2 HDBaseT OUT 2