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Glossary
GL-5
3160-A2-GB21-80
March 1999
Electronic Industries Association. This organization provides standards for the data
communications industry to ensure uniformity of interface between DTEs and DCEs.
An Electronic Industries Association standard for a high-speed, 25-position, DCE/DTE
interface.
MIB objects unique to a specific company’s devices.
A trap unique to a specific company’s devices.
End of Number.
A discrepancy between a measured or computed value or condition and the true or
specified value or condition.
Errored Seconds. A second with one or more ESF error events (one or more CRC6 error
events or OOFs).
ElectroStatic Discharge. An undesirable discharge of static electricity that can damage
equipment and degrade electrical circuitry.
Extended SuperFrame. The T1 transmission standard that specifies 24 frames as an
extended superframe to be used for frame synchronization and to locate signaling bits.
Factory 1 configuration area. The first of two configuration option sets that are preset at
the factory (read-only options).
Factory 2 configuration area. The second of two configuration option sets that are preset at
the factory (read-only options).
An uncorrected hardware error.
An accidental condition that causes a functional unit to fail to perform its required function.
Federal Communications Commission. The Board of Commissioners that regulates all
electrical communications that originate in the United States.
Facility Data Link. The selected framing bits in the ESF format used in a wide-area link that
are used for control, monitoring, and testing.
Individual DS0 channels that may be sold separately or in groups to provide bandwidth
that is some fraction of the total E1 capability.
One identifiable group of bits that includes a sequence of bits for control, framing, etc.
A high-speed connection-oriented packet switching WAN protocol using variable-length
frames.
A technique that separates bits into identifiable groups.
An extension to MIB II that defines additional objects for control of generic interfaces in
MIB II.
A command providing read-only access to SNMP MIB objects.
A physical connection to earth or other reference point.
High-Level Data Link Control. A communications protocol defined by the International
Standards Organization (ISO).
A computer attached to a network that shares its information and devices with the rest of
the network.
Hertz. A unit of frequency that equals one cycle per second.
EIA
EIA-530-A
Enterprise MIB
enterprise-specific
trap
EON
error
ES
ESD
ESF
Fact1
Fact2
failure
fault
FCC
FDL
fractional E1
frame
frame relay
framing
Generic-Interface
Extension MIB
Get command
(SNMP)
ground
HDLC
host
Hz