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<h1>Runtime Diagnostics and BTS Alarms</h1>

<p>Alarms generated by the Nokia MetroSite Base Station, Nokia
UltraSite EDGE Base Station, and Nokia InSite Base Station will be radically
reduced due to the advanced diagnostic and alarm management.</p>


<p>For Nokia MetroSite BTS, only unit level and base station
level alarms are sent to the BSC. For the Nokia UltraSite BTS, the TRX level,
TRE level, BTS level, BCF level alarms, and some special alarms are sent to
the BSC. For the Nokia InSite BTS, only base station level alarms are sent
to the BSC. Correlation rules and diagnostic procedures ensure that an appropriate
recovery procedure is activated.</p>


<p>The Base Station runs diagnostic tests when the BTS Supervision
has noticed that an object is faulty. The base station reports to the BSC
that diagnostics have been started in a certain object. Then the BSC sets
the operational state of the object to be blocked. When diagnostics are ready,
the base station requests that the BSC deblock the object under diagnostics.
The diagnostic object blocked can be a BCF, BTS, or TRX.</p>


<p>In order to reduce the alarms sent from the base station
to the BSC, the alarm descriptions have a variable part, which may contain
text to describe the alarm in more detail.</p>


<p>There are three different alarm levels and only one ***
or ** alarm per object can be active at a time:</p>


<p>*** 	object faulty</p>


<p>**   	service degraded</p>


<p>*          notification.</p>


<p>Supervision of the Nokia MetroSite Transmission Units feature
takes care of the diagnostics function for the transmission units.</p>


<p>For the Nokia InSite Base Station, a diagnostic report
is generated when a fault is detected in a unit. The diagnostic report allows
the service personnel to perform a faster and better quality repair on the
faulty unit, which will have been fetched from the site. The diagnostic report
is not available in the BSC or NetAct.</p>
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