Operation Manual

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Chapter 7 Troubleshooting
The operation the Fiber-DAS components are monitored, any operation outside of acceptable limits will generate
an alarm. The alarms are described within the following paragraphs along with recommended actions at the
Network Operations Center (NOC) and field maintenance levels.
Alarms
Alarms in the following paragraphs are grouped by the unit generating the abnormal condition. The alarms are
listed in numerical order by the alarm ID.
Base Station Gateway (BGW) Alarms
ID Name Class Severity Unit
16 Lost Node 0x0001 Critical BGW
Description
The supervisor has lost connection with a node. Communication over the fiber
between the BMU and the RU is down. The two major reasons for this alarms
would be a fiber disconnect or a power outage. RF may still be working if only
the communication link is affected.
NOC Actions
From NOC
Check if there are other alarms related such as low optical level. Check optical
light on the corresponding FOI
Field Actions Check power, check fiber, check remote unit.
ID Name Class Severity Unit
17 Lost Supervision 0x0001 Critical BGW
Description Supervisor is not functional in the BGW system. Likely a software issue.
NOC Actions
Try to restart the BGW. This may require a root login and issuing the command
"shutdown -r now" from the console.
Field Actions
Reboot the BGW computer. If alarm does not clear or comes back, replace the
BGW computer. Contact Bird for replacement or software upgrades.
Fiber Optic Remote (FOR) Alarms
ID Name Class Severity Unit
46 Temperature Alarm 0x0010 Warning FOR
Description
Temperature is above 85° C (185° F) for the FOR. High power units may start
reducing their output power to protect itself from overheating.
NOC Actions
Check temperature for other remotes. Dispatch field techs to check the
environment.
Field Actions
Check the reason for overheating. Arrange for ventilation if insufficient. For
outdoor units, deploy the sun shield that is available for the Bird remote unit.