S&C IntelliRupter PulseCloser R3 Retrofit Manual page 17

The R3 Communication Module Ethernet ports use
RJ-45 connectors with the pinout shown in Figure 25. They
are auto-sensing for assignment of transmit and receive
lines (no crossover cables required) and auto-negotiate
for 10-Mbps or 100-Mbps data rates, as required by the
connected device.
Wi-Fi/GPS Board Configuration Details
Pin Function
1 TXD+
2 TXD-
3 RXD+
4 NC
5 NC
6 RXD-
7 NC
8 NC
Figure 25. The R3 Communication Module RJ-45 interface
pinout.
S&C Instruction Sheet 766-526
Description
Transmit
Transmit
Receive
No connection
No connection
Receive
No connection
No connection
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