Clear-Com PL-PRO EF-1M, Инструкция по эксплуатации

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6 - 1 E F - 1 M I N T E R F A C E
GLOSSARY
Category 3, 5, 5e, or 6 cable :
EIA/TIA 568 category specification relating to the
performance of network cabling. All are adequate for EF-1M wiring.
CODEC
: A device that enCODes and DECodes data.
Drop(s)
: A point or points in the party-line system where a beltpack or station is present.
For purposes of this discussion, a drop is any point on a common channel where an
EF-1M or other 4-wire to 2-wire interface is present.
Four-wire audio
: A single shielded-pair or twisted-pair cable carries audio in one
direction only.
Hybrid
: A circuit that converts between 4-wire audio and 2-wire audio and contains a
nulling circuit.
Interface
: The place at which independent systems meet and act on or communicate
with each other. An interface might be a hardware connector used to link to other
devices, or it might be a convention used to allow communication between two software
systems. An interface often converts transmission signals so that they are compatible.
The glossary gives
definitions of
technical terms
found throughout this
manual.
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