Operation Manual

ID Name Class Severity Unit
48 Input voltage V1B low 0x0020 Error FOI
Description
Measured input voltage from backplane power connector B is too low. This is a
hardware fault either on FOI or DMF or a PSU.
NOC Actions
Check if any other cards in the same rack produce the same errors
. If not this
may be just the FOI that has a problem. If other cards are reporting the same
issue then this is likely to be a PSU or backplane fault.
Field Actions
If just one board is alarming try to replace that board. If several boar
ds are
alarming, attempt to replace the PSU. If that does not help replace the DMF
transferring all cards to the new DMF.
ID Name Class Severity Unit
49 Input voltage V1A high 0x0020 Error FOI
Description
Measured input voltage from backplane power connector A is too high. This is
a hardware fault either on FOI or DMF or a PSU.
NOC Actions
Check if any other cards in the same rack produce the same errors. If not this
may be just the FOI that has a problem. If other cards are reporting the same
issue then this is likely to be a PSU or backplane fault.
Field Actions
If just one board is alarming try to replace that board. If several boards are
alarming, attempt to replace the PSU. If that does not help replace the DMF
transferring all cards to the new DMF.
ID Name Class Severity Unit
50 Input voltage V1B high 0x0020 Error FOI
Description
Measured input voltage from backplane power connector B is too high. This is
a hardware fault either on FOI or DMF or a PSU.
NOC Actions
Check if any other cards in the same rack produce the same errors. If not this
may be just the FOI that has a problem. If other cards are reporting the same
issue then this is likely to be a PSU or backplane fault.
Field Actions
If just one board is alarming try to replace that board. If several boards are
alarming, attempt to replace the PSU. If that does not help replace the DMF
transferring all cards to the new DMF.
ID Name Class Severity Unit
51 Downlink 5V low 0x0020 Error FOI
Description
The measured 5 V to RF parts on the board is below acceptable level. This is a
hardware fault.
NOC Actions Dispatch tech to replace board.
Field Actions Replace FOI card. Commission new card with the same settings as the old.
Fiber Distributed Antenna System (Fiber DAS)
129