Nortel Networks BM450 manual Hardware Troubleshooting, System status LEDs states and descriptions

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 on page 20 describes the meaning of the system status 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	Status	Description
Start-up sequence
Solid yellow		Solid yellow	Power applied to the system.
Solid yellow		Off	Power on self test (POST); 9 seconds.
Solid yellow		Solid yellow	System initialization; 14 seconds.
Solid green		Solid yellow	Kernel initialization; 8 seconds.
Solid green		Flashing green	Services initialization; 1 minute.
Solid green		Solid green	System running; normal operation.
Solid green		Solid red	Services initialization failure
Safe mode start-up sequence
Solid red		Solid green	System running with manufacturing settings enabled
Solid red		Solid red	System running in software reset mode
Sold red		Flashing yellow	System running in configuration reset mode
Shutdown sequence or failure
Solid green		Flashing yellow	Shutdown in progress
Off		Solid yellow	Shutdown completed
Solid red		Flashing yellow	Overheating detected; thermal shutdown completed
Solid red		Solid red	Power spike or rail power fluctuation detected
Flashing red		Solid red	Rail power fluctuation; power monitor shutdown completed
Solid yellow		Solid red	Power spike shutdown completed
Off		Off	No power; system is shut down
Start-up profile sequence
Flashing yellow		Flashing yellow	Start-up profile executing
Flashing green		Flashing green	Start-up profile completed (USB device can be removed)
Solid green		Solid green	Start-up profile successfully applied
Solid green		Solid red	Start-up profile failure

NN40160-700