Wiring For Rs-232 Control - Extron electronics SW HD 4K PLUS Series User Manual

4.
5.
Figure 5.

Wiring for RS-232 Control

Use a female 9-pin D-to-bare wire RS-232 cable or a universal control cable (UC50' or
UC100') to connect your computer or control system to the RS-232 pins of the Remote
connector.
1.
2.
3.
Figure 6 shows how to wire this shared connector for RS-232.
RS-232
Tx Rx G
Figure 6.
To verify the power cord polarity before connecting the plug, connect the power supply
with no load and check the output with a voltmeter.
Use the supplied tie wrap to strap the power cord to the extended tail of the connector.
7/8"
(22 mm)
Heat
Captive Screw Connector
1/8"
Shrink
(3 mm)
3/16"
(5 mm) Max.
Wiring the Power Connector
Wire the unterminated end of the RS-232 cable to the provided 3-pole captive screw
plug as described below. Connect the transmit, receive, and ground wires of the cable
to the first three pins on the connector, starting at the left:
Connect the transmit wire to pin 1, which plugs into the Tx (transmit) port.
•
Connect the receive wire to pin 2, which plugs into the Rx (receive) port.
•
Connect the ground wire to pin 3, which plugs into the G (ground) port.
•
Plug the 3-pole connector into the Remote receptacle on the rear panel of the switcher.
Connect the other end of the cable to the appropriate computer or control system
connector.
SW HD 4K Series Switcher
Rear Panel
Remote Port
NOTE: If you use cable that has a drain
wire, tie the drain wire to ground at both ends.
Ground (G)
Receive (Rx)
Transmit (Tx)
Transmit (Tx) Receive (Rx)
Remote Connector Pin Assignments
Tie Wrap
Computer or
Control System
RS-232 Port
SW HD 4K PLUS Series • Installation 8