Description of the device
3.3 LED display
SCALANCE XC-100
16
Operating Instructions, 06/2016, C79000-G8976-C415-02
3.3
LED display
Fault LED "F" (red LED)
The fault LED indicates the incorrect functioning of the device.
LED color
LED status
Meaning
Red
Lit
The IE switch detects an error. At the same time, the signaling contact opens.
The following faults/errors are detected:
1.
Link down event on a monitored port.
2.
Loss of the power supply of one of the two redundant power supplies or the pow-
er supply drops below 9.6 V.
3.
Both power supplies are below approximately 9.6 V (voltage too low).
-
Off
No error detected.
Power LEDs “L1” and “L2” (green LEDs)
The power LEDs show the status of the power supply at connectors L1 and L2.
L1/L2 LEDs
L1/L2 connector
LED color
LED status
Green
Lit
Power supply L1 or L2 is connected.
-
Off
Power supply L1 and L2 are not connected or L1 and L2 <9.6 V.
Note
If the green LED is not lit, no other signal LED lights up either.
Port LEDs "P" (green/yellow LEDs)
The port LEDs indicate the status of the ports.
LED color
LED status
Meaning
Green
Lit
Link exists, no data reception at port
Yellow
Lit
Link exists, data reception at port
Yellow
Flashing
Setting or display of the fault mask