User guide

Managing alarms and events Chapter 7: Operation
7-20
phn-2513_004v000 (Oct 2012)
Protection Interface Status
Definition:
• If the protection cable is physically disconnected from either CMU, this indicates ‘Not
Connected’.
• If the protection cable is connected at both neighbor CMUs but the neighbor is not
responding, this indicates ‘Neighbor Not Responding’.
Cause and action:
• If indicating ‘Not Connected’ check that the protection cable is physically connected at
both CMUs. If installed, check the cabling to the OOB Protection Splitter.
• If indicating ‘Neighbor Not Responding’ check the following:
o Check that the neighbor CMU is powered up and functioning.
o Check that Protection has been configured as 'Protection 1+1' - see Protection
Configuration page.
o Check the integrity of the protection cables.
RFU Common IF Synth Lock
Definition: This indicates a failure of the Common IF synthesizer in the RFU.
Cause and action: This is a failure of the RFU hardware. Please inform Customer Support
of this alarm.
RFU Common RF Synth Lock
Definition: This indicates a failure of the Common RF synthesizer in the RFU.
Cause and action: This is a failure of the RFU hardware. Please inform Customer Support
of this alarm.
RFU Fan
Definition: This indicates when the IRFU transceiver fan assembly has failed. The
assembly consists of two fans and if one fan fails, the this will report partial failure. If both
fans fail, this will report total failure.
Cause and action: This is a failure of the IRFU fan assembly. Please inform Customer
Support of this alarm.