Wiring For Rs-232 Control (Optional) - Extron electronics HDMI DA4 User Manual

Wiring for RS-232 control (Optional)

RS‑232 communication between the distibution amplifier and a host PC can be used to
update firmware or configure the unit using SIS commands (see
Table for SIS
The computer connects to either the rear panel 3‑pole RS‑232 port (
or the front panel USB port (
NOTES:
1.
2.
NOTES:
DB9 Pin Locations
Figure 3.
Commands" on page 17).
b
•
Neither port has precedence and commands from either port are handled in the
order they are received.
• Extron recommends that the USB port is used for temporary connections. If a
permanent connection is required, the RS‑232 port should be used.
Connect an RS‑232 cable, such as Extron universal control cable (UC 50' or UC100') to
the computer, using a female 9‑pin D connector (see figure 3):
Data received by the computer = pin 2
z
Data transmitted by the computer = pin 3
z
Ground = pin 5
z
Wire the opposite end of the cable to the provided 3‑pole captive screw plug (see
figure 3):
Data transmitted by the DA plugs into the Tx (transmit) port
z
Data received by the DA plugs into the Rx (receive) port
z
Ground plugs into the G (ground) port
z
• The wiring in the RS‑232 cables crosses over so that the Tx on the distribution
amplifier connects to the Rx of the control device and vice versa. Ground always
connects to ground.
• If you use cable that has a drain wire, tie the drain wire to the ground at both ends.
5 1
Pin 2 = Rx
Pin 3 = Tx
Pin 5 = G
9 6
Female
Computer
Wiring the HDMI DA4 and HDMI DA6 for RS-232 Control
in figure 7 on page 9) of the distribution amplifier.
Receive Transmit
Transmit Receive
Ground Ground
HDMI DA4 and HDMI DA6 • Installation
"Command and Response
in figure 2 on page 3)
d
REMOTE
RS-232
Tx Rx G
HDMI DA2
6