ET8122P Series
Unmanaged Industrial 8-port 10/100Base-TX + 2-Port 10/100/1000T/FX SFP Combo Ethernet
Switch with PoE/PSE
3
The Port Status LEDs, Wall Mounting Kit
LED Indicators
The diagnostic LEDs located on the front panel of the industrial switch provide real-time information of system and optional status. The following
table provides the description of the LED status and their meanings for the switch.
LED
State
Indication
PWR1
PWR2
Steady
Power on.
Off
Power off.
FAULT
Steady
Power input 1 or 2 is inactive
Off
Power 1 & Power 2 are both active or
no power inputs
P1~P8
LNK/ACT
(Green)
Steady
Connected to network
Flashing
Networking is active
P1~P8
Duplex
(Yellow)
Steady
Ethernet port full duplex
Flashing
Collision of packet occurs
Off
Ethernet port half duplex or not
connected to network
P1~P8
FWD
Steady
A powered device is connected
utilizing Power over Ethernet on the
port
Off
No device is connected or power
forwarding
P9, P10
(RJ-45)
Upper
LED
Steady
Connected to network
Flashing
Networking is active
Off
Not connected to network
Lower
LED
Steady
The port is operating at speed of
1000M
Off
The port is disconnected or not
operating at speed of 1000M
P9, P10
Link/Active
Steady
SFP port is linking
Flashing
Data is transmitting or receiving
Off
Not connected to network