Paradyne 3821PLUS manual Glossary, Active Operating

Glossary

Active (Operating)	A configuration area containing configuration options currently in use by the modem.
	When a power cycle occurs, a reset is performed, or a save is issued, this area is updated
	with the contents of Active (Saved).
Active (Saved)	A nonvolatile configuration area containing the most recently saved configuration
	options. Any changes made to configuration options can be saved by issuing an
	AT&W0 command.
analog loop	Test in which the modem's transmit VF signal is looped to its receiver.
analog signal	A type of signal composed of continuously variable values, used to transmit voice or
	data over telephone lines.
Answer mode	The state of a modem that it is ready to receive an incoming call. For example, an ATA
	(Answer) command has been issued to place the modem into online answer mode. The
	modem has been forced off-hook and is generating an answer tone, beginning the
	handshaking process with the calling modem.
ASCII	This code (American Standard Code for Information Interchange) is a 7-bit code which
	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.
asymmetric rate	In V.34, the ability of a device to transmit at a different rate than it receives.
Async Dial	A factory preset configuration area containing the configuration options most often used
	in asynchronous dial networks.
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	To automatically determine the asynchronous DTE data rate.

3821-A2-GB20-40 January 1999 Glossary-1