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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 3 shows how to wire this connector for RS-232.
RS-232
Tx Rx G
Figure 3.
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 three pins of the connector, starting at the left:
•
Connect the transmit wire to pin 1 which plugs into the
•
Connect the receive wire to pin 2 which plugs into the
•
Connect the ground wire to pin 3 which plugs into the
Plug the 3-pole connector into the
Connect the other end of the cable to the appropriate computer or control system
connector.
SW4 12G HD-SDI 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
Tx
(receive) port.
Rx
(ground) port.
G
receptacle on the rear panel of the switcher.
Remote
Computer or
Control System
RS-232 Port
SW4 12G HD-SDI • Installation
(transmit) port.
5
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