User guide
As an alternative to the front panel TRS port, the RS-232 Remote port, on the rear panel,
uses three connectors in a 5-pole captive screw connector.
FunctionPin
TX
RX
Gnd
Transmit data
Receive data
Signal ground
Controlling
Device
Ground ( )
Receive (Rx)
Transmit (Tx)
Bidirectional
REMOTE
Tx Rx
Do not tin the wires!
OVER FIBER
Ground ( )
Receive (Rx)
Transmit (Tx)
Tx Rx
RS-232
Figure 8. Rear Panel RS-232 Remote Port
In addition, on the rear panel, the units have RS-232 Over Fiber pass-through ports. These
ports allow RS-232 commands to be passed from the control device to remote devices over
the fiber optic cable with speeds up to 115 kbps.
NOTE: The FOX Tx/Rx AV does not respond to, or generate a response to, any
commands passed through the “RS-232 Over Fiber” ports. Refer to the user
guide of the device being controlled for the appropriate SIS commands.
FunctionPin
TX
RX
Gnd
Transmit data
Receive data
Signal ground
Ground ( )
Receive (Rx)
Transmit (Tx)
Bidirectional
Tx Rx
Do not tin the wires!
Tx Rx
REMOTEOVER FIBER
Controlling
Device
Receive (Rx)
Transmit (Tx)
Ground ( )
RS-232
Figure 9. Captive Screw Connection for Rear Panel RS-232 Over Fiber Port
FOX Tx/Rx AV • Conguration 11