Ports and Displays
Industrial Ethernet
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4.3.3 Displays

Power display (green LED)

The status of the power supply is signaled by a green LED:
Status Meaning
lit green Power supply L+ is connected
Not lit Power supply L+ is not connected or <14 V

Port status display (green/yellow LEDs)

The status of the ports is signaled by eight LEDs:
Status Meaning
Port 1 to 8 LED lit green TP link exists, no data reception
Port 1 to 8 LED lit yellow TP link exists, receiving data at TP port
Port 1 to 8 LED flashes green TP link exists, sending data