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Error Detection Troubleshooting
11-2 Centillion 1200N ATM Switch User Manual
NTP 297-8103-903
Detection by LED
Hardware alarms and line interface alarms are indicated by the LED on the main
unit. The status of the hardware and the status of the lines are also indicated.
Each LED is described in Figure 11-1.
Figure 11-1: ATM Switch LED Locations
POWER LED
The POWER LED lights green when power is on and turns off when power is
off.
READY LED
The READY LED turns on when the equipment is operating properly and turns
off when an error occurs. It also flashes during diagnosis.