74 SBC329 3U VPX Single Board Computer
Publication No. SBC329-HRM/1
LEDs
Name
Color
Meaning when lit
DS429
SATA activity
Yellow
Any of the PCH SATA ports are active
DS430
Power good
Green
Steady on = All backplane and on-board supplies are within specification.
Flashing = The on-board supplies were within specification but one or more supply
has subsequently failed
DS431
Sleep status
Yellow
The board is in sleep state S3, S4 or S5
DS432
ETH0 link/activity
Yellow
Steady state = ETH0 has a valid link
Flashing = activity on ETH0
DS433
ETH1 speed
Yellow
ETH1 has linked at 1000 Mb/s speed
DS434
ETH1 link/activity
Yellow
Steady state = ETH1 has a valid link
Flashing = activity on ETH1
DS435
ETH2 speed
Yellow
ETH2 has linked at 1000 Mb/s speed
DS436
ETH2 link/activity
Yellow
Steady state = ETH2 has a valid link
Flashing = activity on ETH2
DS437
BIT Pass
Green
Indicates that BIT has passed, or another OS has booted successfully
DS438
BMM Status
Yellow
Refer to BMM software manual
5.20.1
BIT LEDs (DS402 to DS404 and DS437)
The SBC329 has
four software-controlled LEDs, to reflect the status of BIT or other
boot software. When used by BIT, the LEDs have the following meanings:
Table 5-22 BIT LED Meanings
LEDs
Color
Meaning When Lit
DS437
Green
BIT Pass
DS404
Red
BIT Fail
DS402
Yellow BIT status 2 (see BIT documentation)
DS403
Yellow BIT status 1 (see BIT documentation)
LINK
BIT for SBC329 Software Reference Manual, publication number FBIT-SBC329-SRM.
The BMM controls the BIT Fail LED, which is powered from the auxiliary power
supply so that it can remain lit even when the main power supplies are not active or
have failed.
TIP
The BIT LED is lit by default and relies on the BMM, BIT or another operating system to switch it
off. So, as well as indicating a BIT failure, it can also indicate a problem with the BMM or failure
to run an operating system.
The two yellow and one green LEDs are
unlit after reset and are driven by the FPGA
under software control.
When BIT is installed on the SBC329, the red LED either shows that BIT has not yet
run (straight after a reset) or has run but failed. The yellow LEDs show progress
through BIT, and so may provide information for debugging purposes in the event
of failure. The green LED shows that BIT has passed.