
| Glossary |
buffer | A storage device used to compensate for |
| differences in the data flow rate when transmitting |
| data from one device to another. |
byte | A sequence of successive bits (usually eight) |
| handled as a unit in data transmission. |
character | A letter, figure, number, punctuation, or other |
| symbols. |
character echo | A way to check the accuracy of data transmission |
| by sending (displaying) all the characters being |
| transmitted to the monitor. |
Class 1 fax | A fax modem standard. Under Class 1 computer |
| software handles most of the protocol, |
| compression, and conversion tasks. |
Class 2 fax | A fax modem standard. Under Class 2 the modem |
| handles most of the protocol, compression, and |
| conversion tasks as well as modulation, leaving |
| the computer free for other work. |
command line | Contains the command(s) instructing the modem |
| to perform a function. Command lines begin with |
| the AT prefix (unless disabled), and are executed |
| when you press the Return key. |
Command mode | One of two general modem operating modes. |
| When in Command mode, the modem accepts |
| commands instead of transmitting or receiving |
| data. |
configuration option | Modem software that sets specific operating |
| parameters for the modem. Sometimes referred to |
| as straps. |
connector | An outlet on equipment and cables that provides a |
| connection. |
CSA | Canadian Standards Association. |
CTS | |
| is ready for the DTE to transmit data. |
August 1998 |