Wiring For Rs-232 Control - Extron electronics DTP HD DA 4K Series User Manual

Wiring for RS-232 Control

RS-232 communication between the distribution amplifier and a host PC can be used to update
firmware or configure the unit using SIS commands (see
SIS Commands
The computer connects to either the rear panel 3-pole RS-232 port (
panel USB port (see Figure 4
NOTES:
1.
2.
NOTES:
DB9 Pin Locations
Figure 9.
on page 16).
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 to the computer, using a female 9-pin D connector (see figure 4):
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 9):
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 the cable 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 DTP HD DA 4K Series for RS‑232 Control
Command and Response Table for
page 6 ) of the distribution amplifier.
on
Receive Transmit
Transmit Receive
Ground Ground
Extron DTP HD DA 4K Series • Installation and Operation
page 8 ) or the front
on
K
REMOTE
RS-232
Tx Rx G
DTP HD DA 4K
10