Alcatel-Lucent 1665 Installation Manual page 420

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FEBE - Far End Block Error
An indication returned to the near-end transmitting node that an errored block has been detected at
the far end.
FEPROM - Flash EPROM
Nonvolatile Electrically-erasable Programmable Read-Only Memory.
FERF - Far End Receive Failure
An indication returned to the transmitting terminal that the receiving terminal has detected an
incoming section failure.
FE SEL - Far End Select
An LED on the faceplate of the SYSCTL circuit pack.
FICON
FICON is equivalent to Fibre Channel throught layers 1-3.
FICON_EXP
FIT
Failures in 10
Free Running
An operating condition of a clock in which its local oscillator is not locked to an internal
synchronization reference and is using no storage techniques to sustain its accuracy.
FT-2000
Lucent's SONET OC-48 Lightwave System.
Function Unit
Refers to any one of a number of different circuit packs that can reside in the A, B, C, or D function
unit slots on the Alcatel-Lucent 1665 DMX.
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G
GNE - Gateway Network Element
A network element that has an active X.25 link. Can also be a DSNE.
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H
Hairpin Routing
A cross-connection between function units (inter-function unit). For example, function unit C to
function untis A, B, or D. Also, a cross-connection within the same function unit (intra-function
unit). Cross-connections go through Main, but no bandwidth or time slots are taken from the
backbone ring. Eliminates need for another shelf.
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GL - 2 0
9
hours of operation.
Terms and definitions
365-372-304R7.1
Issue 2 March 2008