Owner's manual

AT8904M Hardware Description
Page 3 - 20 AT8904M User Guide
Figure 3-4: Backplane Switch LEDs Signification
Table 3-18: Backplane Link LEDs Signification
The four front panel ATCA LEDs (ATCA LEDs 1 to 3 and the Blue LED alongside the AMC slots)
display the board’s health and hotswap status (see table 3-17). Four User LEDs (see figure 3-
4) and 16 STAT/ACT LEDs give status information for the base and fabric switches and their
links.
The LED push button toggles between the display of the base interface's and the fabric inter-
face's links. User LEDs 2 (base IF) and 4 (fabric IF) indicate which interface's links' status and
activity are currently displayed by the 16 STAT/ACT LEDs.
Table 3-17: ATCA LEDs Signification
LED Signification
ATCA LED3 (HB) (amber/green) User definable
ATCA LED2 (HY) (green/amber) On=Healthy (PPC/IPMC), Blink=Sensor out of range
ATCA LED1 (OOS) (red/amber) On=Out of Service (PPC/FUM)
Blink=Firmware Update in Progress or Power denied
ATCA BLUE LED (H/S) On=Ready for Hot Swap (IPMC)
Blink=Hot Swap in Progress
STAT/ACT LEDs 1-16
OFF Link Down
ON Link Up and no activity
BLINK Link Up and activity