Alcatel-Lucent 1643 AMS Applications And Planning Manual page 299

Glossary
License key
An encrypted code that is required to enable the use of specific modules in the Lucent
OMS. Valid license keys can be obtained from your provider.
Line
Transmission line; refers to a transmission medium, together with the associated high
speed equipment, that are required transport information between two consecutive
network elements, one of which originates the line signal and the other terminates the
line signal.
Line Build Out (LBO)
An optical attenuator that guarantees the proper signal level and shape at the receiver
input.
LNC
LiNe Controller (SLM)
LO
Low Order
LOF
Loss Of Frame
LOM
Loss Of Multiframe
Loop Timing
A timing mode in which the terminal derives its transmit timing from the received line
signal.
LOP
Loss Of Pointer
LOS
Loss Of Signal
Lower order Path Adaptation (LPA)
Function that adapts a PDH signal to a synchronous network by mapping the signal into
or de-mapping the signal out of a synchronous container.
Lower order Path Connection (LPC)
Function that provides for flexible assignment of lower order VCs in a higher order VC.
Lower order Path Termination (LPT)
Function that terminates a lower order path by generating and adding the appropriate VC
POH to the relevant container at the path source and removing the VC POH and reading
it at the path sink.
LPU
Line Port Unit
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365-312-801R7.2
Issue 3, May 2007
Alcatel-Lucent - Proprietary
See notice on first page
GL-15