Expansion RJ-45 Port Pinouts
RJ-45 Pin/signal definition
Pin No.
Signal
Direction
4
TxD
Output
5
RxD
Input
6
+12V
―
7
GND
―
8
DCD
Input
RJ-45 Pin/signal definition
Pin No.
Signal
Direction
1
+12V
―
2
+12V
―
3
GND
―
4
RS485_DP
bi-directional
5
RS485_DN
bi-directional
6
GND
―
7
NC
―
8
GND
―
Appendix A: Specifications
Description
Warning: Pin 3 is only
intended for use with
Raritan devices.
Transmit Data (Data out)
Receive Data (Data in)
Warning: Pin 6 is only
intended for use with
Raritan devices. Do NOT
connect.
Signal Ground
Reserved
Description
Power (fuse protected)
Power (fuse protected)
Signal Ground
Data Positive of the RS-485
bus
Data Negative of the RS-485
bus
Signal Ground
No Connection
Signal Ground
725