Operation Manual

ID Name Class Severity Unit
44 Fan speed low 0x0030 Error BIU
Description
The card has detected a malfunction on the DAS rack backplane that the fans
are not working properly. This is a hardware fault.
NOC Actions Dispatch field tech to change the fan tray.
Field Actions Replace the fan tray on the DMF unit containing the card giving the alarm.
ID Name Class Severity Unit
45 Fan speed high 0x0030 Error BIU
Description
The card has detected a malfunction on the DAS rack backplane that the fans
are not working properly. This is a hardware fault.
NOC Actions Dispatch field tech to change the fan tray.
Field Actions Replace the fan tray on the DMF unit containing the card giving the alarm.
ID Name Class Severity Unit
46 Temperature alarm 0x0030 Error BIU
Description Temperature is above allowed temperature interval > 90° C (194° F) .
NOC Actions
Check if there are other cards that give high temperature alarms. If there is,
then it is likely an environmental problem with very high environment
temperatures in the room. If only this card is alarming there might be a failure
on the temperature sensor. In both cases dispatch a field tech to trouble shoot.
Field Actions
Check the ambient temperature. Arrange for ventilation as needed. If ambient
temperature is fine, then check the other boards. If only one board is alarming
replace the board which likely has a failed temperature sensor.
ID Name Class Severity Unit
47 Input voltage V1A low 0x0030 Error BIU
Description Input voltage A is detected below a threshold. Likely a PSU failure.
NOC Actions
Dispatch field tech to replace PSU. If there are other cards in the same rack
they should also give similar alarms.
Field Actions
Check the output on the PSU should be 27 VDC nominally. Replace if not
working properly.
Troubleshooting
134