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Description of the device
4.5 LED display
SCALANCE W1788-x / W1748-1
34
Operating Instructions, 03/2022, C79000-G8976-C484-05
LED
Color
Meaning
L1
Off
Power supply L1 too low.
Green
Power supply L1 is applied.
L2
Off
Power supply L2 too low.
Green
Power supply L2 is applied.
PoE
Off
The device is not supplied using PoE.
Green
The device is supplied using PoE.
P1
Off
There is no connection over the Ethernet port P1.
Green
There is a connection over the Ethernet port P1 (link).
Flashing green and
yellow
Data transfer over the Ethernet interface P1.
Flashing green
Interval:
170 ms on / 170 ms off
The port has the status "Discarding" in the spanning tree. The
port is part of a spanning tree, however it is located on a
redundant path and is blocked for data traffic.
P2
Off
There is no connection over the Ethernet port P2.
Green
There is a connection over the Ethernet port P2 (link).
Flashing green and
yellow
Data transfer over the Ethernet interface P2.
Flashing green
Interval:
170 ms on /
170 ms off
The port has the status "Discarding" in the spanning tree. The
port is part of a spanning tree, however it is located on a
redundant path and is blocked for data traffic.