Description of the device
3.3 LED display
SCALANCE XR-500
18
Operating Instructions, 05/2014, A5E03275845-05
3.3
LED display
3.3.1
The "RM" LED for the "redundancy manager" function
The "RM" LED indicates whether or not the device is a redundancy manager and whether or
not the ring is operating free of error.
LED color
LED status
Meaning
-
Off
The device is not a redundancy manager.
Green
On
The device is a redundancy manager.
The ring is working without problems, monitoring is activated.
Green
Flashing
The device is a redundancy manager.
An interruption has been detected on the ring and the device
has switched through.
3.3.2
The "SB" LED for the standby function
The "SB" LED shows the status of the standby function.
LED color
LED status
Meaning
-
Off
The standby function is disabled.
Green
On
The standby function is enabled. The standby section is
passive.
Green
Flashing
The standby function is enabled. The standby section is active.