3Com NBX 100 Administrator's Manual page 450

450 G
LOSSARY
call pickup
call reports
category 3
category 4
category 5
Channel Service Unit
(CSU)
client/server
computing
CLIR
coaxial cable
CODEC
A feature that allows users to retrieve calls that ring on other telephones.
A feature that downloads data about calls and creates simple reports or
exports the data for use in spreadsheets, word processors, or reporting
programs.
The cable standard for UTP (unshielded twisted pair) voice-grade cabling
that is specified by EIA/TIA 568 for use at speeds of up to 10Mbit/s,
including 10BASE-T
The cabling standard specified by EIA/TIA 568 for use at speeds of up to
20Mbit/s.
The cabling standard specified by ElA/TIA 568 for use at speeds of up
to 100 Mbit/s including FDDI (TP PMD), 100BASE-T and
100BASE-VG-AnyLan, and potentially ATM at 155Mbit/s.
Equipment installed on customer premises to terminate a DDS or T1
circuit. CSUs provide network protection and diagnostic capabilities and
regenerate the signal received from the network. The CSU also controls
pulse shape and amplitude for the transmission of the signal into the
network.
The division of an application into two parts that are linked by a network.
A typical example is a database application in which the database and
application software reside on a server, and the interface for entering or
retrieving information resides on individual workstations (clients).
CLI See caller ID.
Calling Line Identity Restriction. A telephone company option that allows
the caller to withhold caller identity from the person being called.
High-capacity networking cable that is formed by an outer braided wire
or metal foil shield surrounding a single inner conductor, with plastic
insulation between the two conducting layers. "Coax" cable is used for
broadband and baseband communications networks. Ethernet employs
thin coaxial cable in 10BASE2 and thick cable in 10BASE5.
COmpressor/DECompressor. A hardware circuit or software routine that
compresses and decompresses digitized audio, video, or image data.
Most codecs include the functions of A/D and D/A conversion as well as
compression and decompression.
Ethernet.