
Glossary
Active (Operating) | A configuration area containing configuration options currently in use by the modem. |
| Any time a power cycle occurs or a reset is performed or a save is issued using the DCP, |
| this area is updated with the contents of Active (Saved). |
Active (Saved) | A nonvolatile configuration area containing the most recently saved configuration |
| options. |
ADp | Advanced Diagnostic protocol. An enhanced diagnostic communication protocol used |
| with the 6800 Series NMS and with certain DCP diagnostic functions. |
analog loop | See local analog loop. |
analog signal | A signal, such as a voice, that varies continuously. |
Answer mode | The modem is in a state where it is ready to receive an incoming call. |
ASCII | This code (American Standard Code for Information Interchange) is a |
| establishes compatibility between data services. ASCII is the standard for data |
| transmission over telephone lines. The ASCII code consists of 32 control characters |
| (nondisplayed) and 96 displayed characters. Refer to Appendix E. |
asynchronous | A data transmission that is synchronized by a transmission start bit at the beginning of a |
transmission | character (five to eight bits) and one or more stop bits at the end. |
AT command set | A group of commands, issued from an asynchronous DTE, that allow control of the |
| modem while in Command mode. All commands must begin with the characters AT and |
| end with a carriage return. |
AT prefix | A prefix issued before every AT command (except A/ and +++) which identifies the |
| DTE's data rate, parity, and character length. |
autobaud | The modem automatically determines the asynchronous DTE data rate when using AT |
| commands. |
automatic answer | A capability to respond to a call received over a dial line. |
automatic dial backup | When |
| number stored in directory location 1. |
November 1996 |