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398 Legrand PDU User Guide
RJ-45 Pin/signal definition
3 GND
―
Signal
Ground
4 RS485_D
P
bi-directional Data Positive of the
RS-485 bus
5 RS485_D
N
bi-directional Data Negative of the
RS-485 bus
6 GND
―
Signal
Ground
7 1-wire
―
1-wire signal for Raritan
environmental sensor
packages
8 GND
―
Signal
Ground
Note: A maximum of 500mA power is permitted for both pin 1 and pin 2 altogether.