Appendix D Glossary

10baseT

Ethernet connector which implements the IEEE standard on 24-gauge, unshielded twisted pair wiring.

AIS

alarm indication signal. An unframed all ones pattern that replaces the normal traffic signal when a failure has been detected. This signal prevents logical con- nections from terminating between devices.

AMI

alternate mark inversion. A bipolar line-coding format in T1 transmission sys- tems whereby successive ones are alternately inverted.

ANSI

American National Standards Institute. A non-profit organization that coordi- nates voluntary standards activities in the United States.

asynchronous

A method of data transmission which allows characters to be sent at irregular intervals by preceding each character with a start bit, followed by a stop bit.

bandwidth

The bandwidth determines the rate at which information can be sent through a channel (the greater the bandwidth, the more information that can be sent in a given amount of time).

61200217L1-1

T3SU 300 User Manual

D-1

Page 103
Image 103
ADTRAN T3SU 300 user manual Ais, Ami, Ansi