Parker Hannifin
Chapter 4 Communications - 41 -
Ethernet Connector Pinout
Table 23 contains the Ethernet connector pinout.
Signal Pin Wire Color Description
RX+ 1 White/orange Differential Receive positive side
RX– 2 Orange Differential Receive negative side
TX+ 3 White/green Differential Transmit positive side
4 Blue Not used
5 White/blue Not used
TX– 6 Green Differential Transmit negative side
7 White/brown Not used
8 Brown Not used
Note: Pin assignment follows EIA/TIA T568B guidelines.
Table 23 RJ-45 Connector Pinout
RJ-45 LED Ethernet Status Indicators
LEDs located on the RJ-45 socket connector indicate Ethernet status. Table
24 describes the LED states and their meanings.
LED Steady Flash Description
Off — No Ethernet link detected
Yellow —
Ethernet link established,
no activity
Ethernet
Link/Activity
— Yellow
Ethernet link established
and active
Off — Ethernet 10Mbps Ethernet Speed
Green — Ethernet 100Mbps
Table 24 RJ-45 Ethernet Status LED Indications