Glossary

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Glossary

This appendix lists the terms and abbreviations that are related to the Polycom RMX 1500/2000/4000, and are commonly used in the RMX documentation.

Abbreviation/

Explanation

Term

 

 

 

AGC

Auto Gain Control. A mechanism that regulates noise and

 

audio volume by keeping the received signal of all

 

participants balanced.

 

 

Bandwidth

Defines the information carrying capacity of a channel. In

 

analog systems, it is the difference between the highest

 

frequency that a channel can carry and the lowest,

 

measured in hertz. In digital systems, bandwidth is

 

measured in bits per second. The larger a connection's

 

bandwidth, the more data can be transmitted in a given

 

amount of time, allowing for greater video resolution and

 

more sites in a conference. For more information, see

 

Line Rate.

 

 

Bonding

Bandwidth ON Demand INterpolarity Group. A

 

transmission protocol that aggregates two 64 Kbps B

 

channels to function as one 128 Kbps channel. When

 

using several BRI channels, Bonding means that only one

 

D-channel serves all BRI channels, while the remaining

 

D-channels are used for data transfer.

 

See also: BRI.

 

 

Bps, Kbps

Bits and kilobits per second; a unit of bandwidth, which is

 

the amount of data that can flow during one second over a

 

communications line (using a transmission medium).

 

1 Kbps = 1000 Bps

 

 

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Polycom DOC2560A manual Glossary, Abbreviation, Explanation, Term