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Description of the device
4.7 LED display
4.7.3
"SB" LED
With a redundant linking of rings, the "SB" LED shows the status of the redundant connection.
The available options of a redundant link are as follows:
• Standby Function
• MRP Interconnection
Standby Function
LED color
-
Green
Green
MRP Interconnection
LED color
-
Green
Green
4.7.4
"F" LED
The "F" LED shows the fault/error status of the device.
Meaning during device startup
LED color
-
Red
Red
Meaning during operation
LED color
-
Red
4.7.5
LEDs "DM1" and "DM2"
The "DM1" and "DM2" LEDs indicate which display mode is set.
34
LED status
Meaning
Off
The standby function is disabled.
On
The standby function is enabled. The standby section is passive.
Flashing
The standby function is enabled. The standby section is active.
LED status
Meaning
Off
MRP Interconnection is disabled.
On
MRP Interconnection redundancy is available.
Flashing
MRP Interconnection redundancy is not available.
LED status
Meaning during device startup
Off
Device startup was completed successfully.
On
Device startup is not yet completed or errors have occurred.
Flashing
There are errors in the firmware.
LED status
Meaning during operation
Off
The device is operating free of errors. The signaling contact is
closed.
On
The device has detected a problem. The signaling contact has
opened.
Operating Instructions, 03/2021, C79000-G8976-C306-10
SCALANCE XM-400
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