Carrier Access Wide Bank 28 DS3 User Manual page 431

Exchange Carrier
Standards
Association
Extended
Superframe
Failure
Far End Block Error
Far End Receive
Failure
Far End SEF/AIS
Fixed Stuff
Framing
Frequency
Grooming
Interleave
Internet Protocol
IP Address
Jitter
Line
Line Errored
Seconds
Wide Bank 28 DS3 - Release 2.4
ECSA. An organization that specifies telecommunications standards for ANSI.
ESF. A North American format for DS1 rate signals at 1.544 Mbps that extends the
capability of the Superframe format to include a 4 Kbps facility data link channel by using
less of the 8 Kbps overhead for synchronization.
A termination of the ability of an item to perform a required function. A failure is caused
by the persistence of a defect.
FEBE. A message sent back upstream that receiving network element is detecting errors,
usually a coding violation.
FERF. A signal to indicate to the transmit site that a failure has occurred at the receive site.
A Far End SEF/AIS defect (Yellow Alarm) is the occurrence of the two X-bits in a M-frame
set to zero. The Far End SEF/AIS defect is terminated when the two X-bits in a M-frame
are set to one.
A bit or byte whose function is reserved. Fixed stuff locations, sometimes called reserved
locations, do not carry overhead or payload.
Method of distinguishing digital channels that have been multiplexed together.
The number of cycles of periodic activity that occur in a discrete amount of time.
Consolidating or segregating traffic for efficiency.
The ability of SONET to mix together and transport different types of input signals in an
efficient manner, thus allowing higher-transmission rates.
IP. A network protocol providing connectionless service.
The IPv4 standard specifies a 32-bit internet address. This quantity is displayed as four
decimal digits, each with a decimal range of 0 to 255, separated by decimal periods.
Short waveform variations caused by vibration, voltage fluctuations, control system
instability, and so on.
An electrical path (two wires) connecting between a central office and a subscriber.
LES. A Line Errored Second is a second in which one or more CVs occurred OR one or
more LOS defects.
July 2004
Glossary
Glossary-9