............................................................................................................................................................................................................................................................

ES - Errored Seconds

A performance monitoring parameter.

ESF - Extended Super Frame

The format for a DS1 signal.

FE - Far End

Any other network element in a maintenance subnetwork other than the one the user is at or working

on. Also called remote.

FE ACTY - Far End Activity

An LED on the SYSCTL circuit pack faceplate.

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.

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, D, or G function

unit slots on the Alcatel-Lucent 1850 TSS-60.

GNE - Gateway Network Element

A network element that has an active X.25 link. Can also be a DSNE.

GL - 2 0

-9

hours of operation.

365-372-603R2.0

Issue 1 January 2009

Table of Contents

Alcatel-Lucent 1850 TSS-60 Installation And System Turn-Up Manual page 374

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