Description of the device 
  3.3 LED display 
SCALANCE XR-300WG 
Operating Instructions, 05/2017, C79000-G8976-C454-01 
21 
 
Device view of 240 VAC variant 
The following figure shows an overview of the components of a 240 VAC variant of a 
SCALANCE XR-300WG based on the example of a SCALANCE XR328-4C WG. 
 
Electrical ports with port LEDs 
Combo port ports with port LEDs 
Integrated brackets for 19" rack mounting 
240 V AC power supply (rear) 
  LED display 
•  The "F" LED for faults 
•  The "RM" LED for the redundancy manager function 
•  LED "L" for the power supply 
 
 
The fault LED "F" indicates the incorrect functioning of the device. 
 
-  Off  The device is switched off or has not detected a prob-
lem. 
Red  Lit  The device has detected a problem. 
Using the WBM and CLI, you can set when the device 
signals an error and which errors should be signaled.