User's Manual

Lucent Technologies — Proprietary
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18-6
401-660-100 Issue 11 August 2000
Alarm Collection and Reporting
Alarm Reporting to the ECP
The AFI scans the alarm inputs every two seconds to update its alarm memory.
When the AFI detects an alarm condition, it sets a flag in the alarm memory. The
CPU, which scans the alarm memory every four seconds, reads the flag and
responds by transmitting the alarm condition via an X.25 signaling channel to the
ECP.
The CPU reports an alarm condition only once to the ECP, at the time that the
CPU initially senses the alarm. The CPU will also send an “all clear” message to
the ECP when the alarm condition either clears itself or is cleared by Cell Site
maintenance personnel.