Paradyne HotWire 5446 Installation Instructions Manual page 15

The Ethernet interface connector uses an 8-pin, non-keyed modular plug.
— To connect to an Ethernet hub, use the straight-through connection.
8-Pin Straight-Through Connection
Pin # Function
1 10BaseT TX D+
2 10BaseT TX D–
3 10BaseT RX D+
4 & 5 Not used
6 10BaseT RX D–
7 & 8 Not used
— To connect the RTU directly to
a PC with an Ethernet NIC card,
use an Ethernet crossover cable.
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