Front Panel System Status LED Indicators

Power/Sleep LED

The BIOS controls the front panel Power LED as described in the following table.

Table 1-6 SSI Power LED Operation

State

Power

LED

Description

Mode

 

 

 

 

 

 

 

Power Off

Non-ACPI

OFF

System power is off, and the BIOS has not initialized the

 

 

 

chipset

 

 

 

 

Power On

Non-ACPI

ON

System power is on, but the BIOS has not yet initialized the

 

 

 

chipset

 

 

 

 

S5

ACPI

OFF

Mechanical Off, and the OS has not saved any context to

 

 

 

the hard disk

 

 

 

 

S4

ACPI

OFF

Mechanical Off. The OS has saved context to the hard disk

 

 

 

 

S3-S1

ACPI

Slow Blink 1

DC Power is still on. The OS has saved context and gone

 

 

 

into some level of low-power state

 

 

 

 

S0

ACPI

Steady On

System and the OS are up and running

 

 

 

 

Note: Link rate is ~1 Hz at 50% duty cycle.

System Status LED

Critical Condition

Any critical or non‐recoverable threshold crossing associated with the following events:

Temperature, voltage, or fan critical threshold crossing.

Power subsystem failure. The BMC asserts this failure whenever it detects a power control fault (for example, the BMC detects that the system power is remaining on even though the BMC has instructed the signal to turn off power to the system). A hot‐swap backplane would use the Set Fault Indication command to indicate when one or more of the drive fault status LEDs are asserted on the hot‐swap backplane.

The system is unable to power up due to incorrectly installed processor(s), or processor incompatibility.

Satellite controller sends a critical or non‐recoverable state, using the Set Fault Indication command to the BMC.

“Critical Event Logging” errors, including: System Memory Uncorrectable ECC error and Fatal/Uncorrectable Bus errors, such as PCI SERR and PERR.

RBT-8200 Wireless Switch Installation Guide 1-7

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Enterasys Networks RBT-8200 manual Power/Sleep LED, System Status LED