System Status Leds - Nortel BM450 Troubleshooting Manual

20 Chapter 3 Hardware Troubleshooting

System status LEDs

The chassis of the BCM450 contains two LEDs: a Status LED and a Power LED. The Power LED
is located at the bottom left of the chassis; the Status LED is immediately above it. The table
System status LEDs states and descriptions
LEDs in the following situations:
• start-up sequence: LED indicators during the normal start-up process
• safe-mode start-up sequence: LED indicators during a safe-mode start-up
• shutdown sequence: LED indictors during a shutdown or failure
• start-up profile sequence: LED indicators during an initial installation or staging
Table 1 System status LEDs states and descriptions
Power
Start-up sequence
Solid yellow
Solid yellow
Solid yellow
Solid green
Solid green
Solid green
Solid green
Safe mode start-up sequence
Solid red
Solid red
Sold red
Shutdown sequence or failure
Solid green
Off
Solid red
Solid red
Flashing red
Solid yellow
Off
Start-up profile sequence
Flashing yellow
Flashing green
Solid green
Solid green
NN40160-700 NN40160-700
on page 20 describes the meaning of the system status
Status
Description
Solid yellow Power applied to the system.
Off Power on self test (POST); 9 seconds.
Solid yellow System initialization; 14 seconds.
Solid yellow Kernel initialization; 8 seconds.
Flashing green Services initialization; 1 minute.
Solid green System running; normal operation.
Solid red Services initialization failure
Solid green System running with manufacturing settings enabled
Solid red System running in software reset mode
Flashing yellow System running in configuration reset mode
Flashing yellow Shutdown in progress
Solid yellow Shutdown completed
Flashing yellow Overheating detected; thermal shutdown completed
Solid red Power spike or rail power fluctuation detected
Solid red Rail power fluctuation; power monitor shutdown completed
Solid red Power spike shutdown completed
Off No power; system is shut down
Flashing yellow Start-up profile executing
Flashing green Start-up profile completed (USB device can be removed)
Solid green Start-up profile successfully applied
Solid red Start-up profile failure