AMX DUX-SRX User Manual page 16

4. When all set, the RS232 Device 1 can be controlled at RS232 Device 2 or vice versa.
RS232 Device 1
RS232 Cable
DUX-SRX
HDBT Cable
HDBT Transmitter (e.g. DUX-8D)
CatX Cable
RS232 Cable
RS232 Device 2
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USER MANUAL - DUX-SRX
100-METER 4K HDBASET SCALING RECEIVER