Description
3.6 LED display
SCALANCE XR-300M PoE
Compact Operating Instructions, 05/2016, A5E02661178-10
19
Definition of the fault mask
Using the fault mask, you specify an individual "good status" for the connected ports and the
power supply. Deviations from this status are then displayed as errors/faults.
1.
Turn on display mode A or D. Display mode A is active when the "DM" LED is not lit.
Display mode D is active when the "DM" LED flashes yellow/orange. If a different display
mode is active, you will need to press the SET/SELECT briefly (possibly several times)
until the required display mode is active.
2.
Hold down the SET/SELECT button for five seconds. After three seconds, the "DM" LED
begins to flash. If you release the button before the five seconds have elapsed, the
previous fault mask will be retained.
Enable/disable the redundancy manager
1.
Turn on display mode B. Display mode B is active when the "DM" LED is lit green. If a
different display mode is active, you will need to press the SET/SELECT briefly (possibly
several times) until display mode B is active.
2.
Hold down the SET/SELECT button for five seconds. After three seconds, the "DM" LED
begins to flash. If you release the button before the five seconds have elapsed, the action
is aborted.
3.
The result of the action depends on the initial situation:
–
If the redundancy manager and media redundancy were disabled, media redundancy
is also enabled after enabling the redundancy manager.
–
If you disable the redundancy manager, media redundancy remains enabled.
3.6
LED display
The "RM" LED for the "redundancy manager" function
The "RM" LED indicates whether or not the device is operating in the role of redundancy
manager and whether or not the ring is operating error-free.
LED color
LED status
Meaning
-
off
The device is not operating in the role of "redundancy manager".
green
on
The device is operating in the role of redundancy manager. The
ring is working without problems, monitoring is activated.
green
flashes
The device is operating in the role of redundancy manager. An
interruption has been detected on the ring and the device has
switched through.