Alcatel-Lucent 1830 PSS-16 Maintenance And Trouble-Clearing User Manual page 697

Glossary
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Engineering rules
A set of rules that determine the system configuration possibilities based on fiber type, OA, rate,
and number of wavelengths. These rules also determine the maximum loss per span that can be
tolerated, the maximum distance between spans allowed, and the maximum number of spans that
can be supported.
equipment controller (EC)
EC is the equipment controller card˙,
erbium-doped fiber amplifier (EDFA)
A type of amplifier with a short length of fiber that has been doped with erbium and spliced into
the operating single-mode fiber (SMF) . A three-port wavelength division multiplexer (WDM) is
used, with one incoming port connected to the operating fiber carrying the primary signal in the
1550-nm window, one incoming port attached to a pump laser operating at 980 nm or 1480 nm,
and the one outgoing port connected to the operating fiber.
ESD
See "electrostatic discharge" (p. GL-8)
Ethernet LAN
A LAN conformant to the 802.3 IEEE standard. This standard supports communications over
shared media where only one device can transmit while all other devices listen. A collision
detection and handling mechanism is incorporated into the standard. Devices on the LAN
communicate by sending Ethernet packets containing a Media Access Control (MAC) address for
the source and destination. Setting the destination MAC address to all ones supports packet
broadcast to all devices on the LAN.
ETSI
See "European Telecommunications Standards Institute" (p. GL-9)
European Telecommunications Standards Institute (ETSI)
Located in Sophia-Antipolis, France, ETSI is the European counterpart to ANSI. Its task is to
pave the way for telecommunications integration in the European community as part of the single
European market program. It establishes telecommunication standards for the European
community.
eVOA
See "electrical variable optical attentuator" (p. GL-8)
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F failure
Occurs when a fault cause persists for a certain period of time.
failure in time (FIT)
A unit of failure rate in reliability analysis. One FIT is equivalent to one failure per one billion
operating hours.
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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.
GL-9