5.2.2 Troubleshooting via the LED Indicators
When the system detects a problem, the alarm LED indicator located on the top shelf will turn
red. If the detected trouble is generated by a card, the alarm LED indicator on the card will light
up. (Refer to the figure and the table below)
When the trouble is cleared, the alarm LED indicator located on the top shelf goes off
automatically.
Installation Manual
LED Indicators on the Top Shelf
RUN
LED indicators on the CPU card
OFF LINE
ALARM
Troubleshooting
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