Path Terminating Equipment
Network elements in which the path overhead is terminated.
PC
Personal Computer
PCB
Printed Circuit Board
PCM
Pulse Code Modulation
PCT-link
Peripheral Control and Timing-link
PDH
Plesiochronous Digital Hierarchy
Peer NMS
NMS at the other end of the peer-to-peer link.
Peer to Peer link
Connection between two NMSs with Geographic Redundancy. The link is used to
co-ordinate the management of a network element. See also Geographic Redundancy.
Performance Monitoring (PM)
Measures the quality of service and identifies degrading or marginally operating systems
(before an alarm is generated).
PI
Physical Interface, Plesiochronous Interface
PIR
Peak Information Rate
PJE
Pointer Justification Event
Platform
Family of equipment and software configurations that are designed to support a
particular Application.
Plesiochronous Network
A network that contains multiple subnetworks, each of which is internally synchronous
and operates at the same nominal frequency, but the timing of any of the subnetworks
may be slightly different at any particular instant.
PLL
Phase Lock Loop
Glossary
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365-312-847R4.0
Issue 4, November 2006
Lucent Technologies - Proprietary
See notice on first page
GL-21