Wiring For Rs-232 Control (Optional) - Extron electronics DA2 HD 4K User Manual

Wiring for RS-232 Control (Optional)

Rear panel RS-232 connector
RS‑232 connector
E
a host PC to update firmware or configure the unit using SIS commands (see
and Response Table for SIS Commands
Extron recommends Extron universal control cable (see www.extron.com).
NOTES:
•
•
•
5
9
DB9 Pin Locations
Female
Computer
Figure 3.
NOTES:
•
•
To connect the distribution amplifier to a computer, follow these instructions:
1. Connect an RS-232 cable with a female 9-pin D connector to the computer (see
figure 3 above):
•
•
•
2. Wire the opposite end of the cable to the provided 3-pole captive screw plug (see
figure 3 above):
•
•
•
— use RS-232 communication between the distibution amplifier and
You can connect the computer to either the rear panel 3-pole RS-232 port ( see
figure 2, on page 5) or the front panel USB port ( see
E
page 13) of the distribution amplifier.
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.
1
Pin 2 = Rx
Receive
Pin 3 = Tx Transmit
Pin 5 = G Ground
6
Wiring for Rear Panel RS‑232 Control
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.
Data received by the computer = pin 2
Data transmitted by the computer = pin 3
Ground = pin 5
Data transmitted by the DA plugs into the Tx (transmit) port
Data received by the DA plugs into the Rx (receive) port
Ground plugs into the G (ground) port
starting on page 21).
figure 7,
Transmit
Receive
Ground
DA HD 4K Series • Installation
Command
on
B
REMOTE
RS-232
Tx Rx G
DA2 HD 4K
10