Operation Manual

ID Name Class Severity Unit
48 Input voltage V1B low 0x0030 Error BIU
Description Input voltage B 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
the
y should also give similar alarms.
Field Actions
Check the output on the PSU should be 27 VDC nominally. Replace if not
working pr
operly.
ID Name Class Severity Unit
49 Input voltage V1A high 0x0030 Error BIU
Description Input voltage A is detected above 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.
ID Name Class Severity Unit
50 Input voltage V1B high 0x0030 Error BIU
Description Input voltage B is detected above 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.
ID Name Class Severity Unit
51 RF voltage low 0x0030 Error BIU
Description Measured 5 V to RF parts is below a certain threshold.
NOC Actions Dispatch field tech to replace card.
Field Actions Replace card.
ID Name Class Severity Unit
52 RF voltage high 0x0030 Error BIU
Description Measured 5 V to RF parts is above a certain threshold.
NOC Actions Dispatch field tech to replace card.
Field Actions Replace card.
Fiber Distributed Antenna System (Fiber DAS)
135