Alcatel-Lucent 1830 PSS-16 Maintenance And Trouble-Clearing User Manual page 705

Glossary
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modulation
A process that modifies the characteristic of one wave (the carrier) by another wave (the signal).
Examples include amplitude modulation (AM), frequency modulation (FM), and pulse-coded
modulation (PCM).
MSA
See "mid-stage access amplifier" (p. GL-16)
MTBF
See "mean time between failures" (p. GL-16)
MTTR
See "mean time to repair" (p. GL-16)
multimode fiber
An optical fiber that has a core large enough to propagate more than one mode of light. The
typical diameter is 62.5 micrometers.
multiplexer (MUX)
A device that combines two or more signals into a single output.
multiplexing
The process that transmits two or more signals over a single communications channel. Examples
include time-division multiplexing and wavelength-division multiplexing.
MUX
See "multiplexer" (p. GL-17)
muxponder
A networking device that multiplexes and transponds GbE signals.
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N NE
See "network element" (p. GL-17)
NEBS
See "Network Equipment Building System requirements" (p. GL-18)
network element (NE)
Processor-controlled entity of a telecommunications network that primarily provides switching
and transport network functions and contains network operations functions.
For 1830 PSS, a configuration of 1830 PSS equipment at a single site, addressed as a single entity,
and under the control of a single controller (NE). The types of NEs are terminal, ILA (in-line
amplifier), OADM (optical add/drop multiplexer), and ADM (add/drop multiplexer).
Network Element Management System (NMS)
The NMS provides an efficient means of managing the equipment and services within a network,
including creating new services, diagnosing faults, and planning for growth. It has interfaces to
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1830 PSS-36/PSS–32/PSS-16/PSS-4
8DG60888CAAA Release 3.6.0 and 3.6.1
Issue 1 June 2011
for definition.
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GL-17