AT-HDR-CAT-2
25
Device Operation
1.
Identify the DE-9 connector that will be attached to the control system or computer (DCE) equipment.
2. Remove the DE-9 connector at the opposite end of the cable with wire cutters.
3. Remove at least 1” of the cable insulation to expose each of the nine wires.
4. Locate a multimeter and set it to the “continuity” function.
5. Attach one of the leads from the multimeter to pin 2 on the DE-9 connector.
6.
Take the other lead and probe each of the wires on the opposite end of the cable. When the wire connected to
that pin is detected, the multimeter will emit an audible tone. Once this occurs, identify the current wire, and
move it to the side.
7.
Repeat step 6 for pin 3 and pin 5 on the DE-9 connector.
8.
Group the remaining wires and pull them aside. Electrical tape can be use to secure the wires to the outside of
the RS-232 cable.
9.
Remove at least 3/16” (5 mm) of insulation from the TxD, RxD, and GND wires.
GND
TxD
RxD
10. Locate the included 5-pin captive screw block and open each of the terminals by
turning the screws counter-clockwise, using a small regular screwdriver.
11. Insert the TxD, RxD, and GND wires into correct terminal, as shown, and tighten the
screws to secure each wire. Do not overtighten.
DC 48V
LAN
HDMI
AUDIO OUT
IN
OUT
IR
RS-232
RX TX
RX
TX
MASTER
1
2
HDBaseT OUT
RX
RX
TX
TX
RS-232
IR
R
L
1
2
FW
EDID
AT-HDR-CAT-2
POWER
INT
LOCK
2
1
OUT
IN
HDMI
LEARN
HDBaseT
