User`s manual

U.S. Robotics I-modem Command Reference
Glossary • Page G-6
baud rate
The number of discrete signal events per second occurring on a communications channel.
Although not technically accu-rate, baud rate is commonly used to mean bit rate.
B-channel
In ISDN, a 64-Kbps channel for passing circuit-switched (or packet-switched) digital
information. The ÒBÓ stands for Òbearer.Ó
binary digit (bit)
A 0 or 1, reßecting the use of a binary numbering system (only two digits). Used because
the computer recognizes either of two states, OFF or ON. Shortened form of binary digit is
bit.
BISYNC
Binary Synchronous Control. A protocol developed by IBM for software applications and
communicating devices operating in synchronous
environments. The protocol deÞnes
operations at the link level of communications (for example, the format of data frames
exchanged between modems over a phone line). Also see protocol
, HDLC, SDLC.