PairGain CRA-C, Руководство пользователя

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Megabit Modem CRA-C User Manual 73
GLOSSARY
The Glossary defines technical terms and abbreviations used in this manual.
Access Provider See Service Provider.
Access Rate The transmission speed, in bits per second, of the
physical access circuit between the end user and
the network.
ADSL Asymmetric Digital Subscriber Line. A method
of transmitting at different downstream and
upstream speeds.
Alarm Any valid change of state from its normal condition
detected at an alarm point.
Asymmetric
Transmission
Transmission which sends data at different rates in
each direction.
AWG American Wire Gauge.
ATU-C ADSL Terminal Unit at the service provider site.
ATU-R ADSL Terminal Unit at the remote site.
Bandwidth Used to describe the capacity or amount of traffic
(data, voice, or video) a certain communications line
is capable of accommodating.
BER Bit Error Rate. The ratio of received bits that are
in error.
Binder Group A group of 25 or 50 pairs of wires.
Bit In a binary system, the smallest unit of information.
It is represented as a zero or a one.
Bridge A two-port internetworking device that selectively
filters or forwards traffic based or MAC addresses.
Bridged A pair of wires connected in parallel across a single
line to form a "T" Tap configuration.