Siemens SCALANCE MUM853-1 Operating Instructions Manual page 29

LED
L
P1-P4
Q
SCALANCE MUM853-1
Operating Instructions, 03/2023, C79000-G8976-C650-05
Status Meaning
OFF Device turned off, no power supply.
Green Device turned on, power supply present.
OFF No VPN connection is established.
Green All configured VPN connections are established.
Flashing Only some of the configured VPN connections are established.
green
OFF There is no connection over the Ethernet interface P1.
Green There is a connection over the Ethernet interface P1 (link).
Flashing Data transfer over the Ethernet interface P1
green and
yellow
OFF No reception or mobile wireless disabled
Red Wrong PIN number or SIM card error
Flashing red Signal strength very poor
Flashing yel‐ Signal strength poor
low
On Signal strength medium
Flashing Signal strength good
green
Green Signal strength very good
Description of the device
4.7 LED display
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