Datavideo HBT-12, Instruction Manual

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4. RS-232/RS-422 Pinout
You can use RS-232 or RS-422 control protocol to control the PTR-10T
MARK II behind the HBT-12 HDBaseT Receiver Box with Datavideo
camera controllers such as RMC-180, RMC-300A or RMC-300C. You will
need to use a custom Ethernet cable to connect between the controller
and HBT-12. Wire the connection cable according to the respective RS-
232 and RS-422 wiring diagrams shown below.
RS-232
Remote Controller HBT-12 Receiver Box
GND 1 White/Orange White/Orange 1 GND
NC 2 Orange Orange 2 NC
NC 3 White/Green White/Green 3 TX-
NC 4 Blue Blue 4 RX-
RXD 5 White/Blue White/Blue 5 RX+
TXD 6 Green Green 6 TX+
NC 7 White/Brown White/Brown 7 NC
NC 8 Brown Brown 8 NC
Remote OUT RS-232/RS-422 Port
GND