Operation Manual

ID Name Class Severity Unit
72
Power supply
voltage low
0x0011 Error RU
Description The measured power supply voltage is below the limit. This is a hardware fault.
NOC Actions Dispatch field tech to replace unit.
Field Actions Replace failed unit.
ID Name Class Severity Unit
73
Power supply
voltage high
0x0011 Error RU
Description The measured power supply voltage is above the limit. This is a hardware fault.
NOC Actions Dispatch field tech to replace unit.
Field Actions Replace failed unit.
Fiber Distributed Antenna System (Fiber DAS)
127
Fiber optic Interface (FOI) Alarms
ID Name Class Severity Unit
41 Lost RF instance 0x0020 Critical FOI
Description
The supervisor in the FOI has detected loss of an RF instance, i.e. amplifier
chain. This is likely a hardware fault.
NOC Actions Dispatch field tech to replace FOI board.
Field Actions
Note the current settings on the FOI board. Replace with new FOI, configure
the new board with the same settings as the old board.
ID Name Class Severity Unit
44 Fan speed to low 0x0020 Error FOI
Description
This alarm is not actually emanating from the FOI but comes from the back
plane in the Master Frame Unit (MFU) . This alarm indicates there is a problem
with the cooling fans in the MFU .
NOC Actions Dispatch field tech to replace fan tray.
Field Actions Replace the fan tray by removing the old one and installing a new unit.