Digium TC400B, User Manual

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Appendix B
Glossary and Acronyms
a-law
Mainly used in European telephone networks for the conversion between
analog and digital signals in PCM applications. Similar to the North
American mu-law standard. Refer to G.711 on page 39 and mu-law on
page 44.
ANSI American National Standards Institute
An organization which proposes and establishes standards for
international communications.
asynchronous
Not synchronized; not timed to an outside clock source. Transmission is
controlled by start bits at the beginning and stop bits at the end of each
character. Asynchronous communications are often found in internet
access and remote office applications.
attenuation
The dissipation of a transmitted signal’s power as it travels over a wire.
bandwidth
The capacity to carry traffic. Higher bandwidth indicates the ability to
transfer more data in a given time period.
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