Description of the device
4.5 LED display
SCALANCE W788-x / W748-1
Operating Instructions, 03/2022, A5E03678333-17
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4.5
LED display
Information on operating status and data transfer
On the front of the housing, several LEDs provide information on the operating status of
the SCALANCE W7x8:
LEDs with RJ-45 variants
LEDs with M12 variants
Note
The "R2" LED only exists on devices with two IWLAN interfaces.
LED
Color
Meaning
L1
Off
Power supply L1 too low.
Green
Power supply L1 is applied.
L2
1)
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).