beautypg.com

Glossary – ADC CRA-C User Manual

Page 81

background image

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.