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Glossary
Acronyms and Abbreviations
G L - 1 2
Lucent Technologies - Proprietary
See notice on first page
365-372-327 R2.0
Issue 1, October 2003
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PLL
Phase-Locked Loop
PM
Performance Monitoring
PMN
Power Minor Alarm
POH
Path Overhead
POP
Points of Presence
POTS
Plain Old Telephone Service
PRM
Performance Report Message
PROTN
Protection
PRS
Primary Reference Source
PSU
Power Supply Unit
PVC
Permanent Virtual Circuit
PWR
Power
R
RAM
Random Access Memory
RPP
Reliability Prediction Procedure (described in Telcordia Technologies TR-
NWT-00032)
RT
Remote Terminal