Description of the device
3.5 LED display
SCALANCE MUM856-1
24
Operating Instructions, 08/2021, C79000-G8976-C628-02
3.5
LED display
LED
Status
Meaning
L
OFF
Device turned off, no power supply.
Green
Device turned on, power supply present.
PoE
OFF
The device is not supplied using PoE.
Green
The device is supplied using PoE.
OFF
No VPN connection is established.
Green
All configured VPN connections are established.
Flashing
green
Only some of the configured VPN connections are established.