Alcatel-Lucent 1830 PSS-16 Maintenance And Trouble-Clearing User Manual page 703

Glossary
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LGX
A SONET device that contains ports for optical fiber connections to an optical network element
(NE). An LGX is used to make and change connections to an NE without changing the cabling on
the NE itself.
line build out (LBO)
Attenuation used to simulate a load.
line driver (LD)
Functional unit (circuit pack) providing the OSI model's physical level interface between a data
link and the exchange.
link state advertisement (LSA)
A broadcast message that advertises a link's current status.
LOF
See "loss of frame" (p. GL-15)
long reach (LR)
An optic standard that constrains the output power of transmitters and the sensitivity of receivers
for long-haul applications (up to 80 km) without the need for regeneration.
LOS
See "loss of service/loss of signal" (p. GL-15)
loss
The amount of a signal's power, expressed in dB, that is lost in connectors, splices, or fiber
defects.
loss of frame (LOF)
Loss of frame is detected when the OOF (out-of-frame) anomaly persists for a certain time.
loss of service/loss of signal (LOS)
A condition where the optical input power falls below a certain threshold.
LR
See "long reach" (p. GL-15)
LSA
See "link state advertisement" (p. GL-15)
Lucent connector (LC)
Designation for a small-form-factor (SFF) design based on a proven 1.25-mm ceramic ferrule.
This connector uses RJ-style latching. It facilitates high-speed applications with lower power
requirements due to lower insertion loss (0.1 dB typical) and higher return loss (55-dB single
mode).
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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.
for definition.
for definition.
for definition.
GL-15