Paradyne 3800PLUS manual Glossary-3

Glossary

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.
circuit pack lock	A screw lock tab installed over a circuit card's latch release tab to prevent the unit from
	being removed without a tool. It is used on SDUs, modems, and filler panels.
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 area	One of five areas within the Configure branch containing modem settings. Configuration
	areas include Active (Operating), Active (Saved), Customer 1, Customer 2, and Factory.
configuration option	Modem software that sets specific operating parameters for the modem. Sometimes
	referred to as straps.
Configure	Top-Level menu branch that contains all the modem's configuration options.
connector	An outlet on equipment and cables that provides a connection.
CSA	Canadian Standards Association.
CTS	Clear-to-Send. A signal indicating that the modem is ready for the DTE to transmit data.
Customer 1	A user-defined configuration area containing customized configuration options for a
	specific application.
Customer 2	A user-defined configuration area containing customized configuration options for a
	specific application.
data bank	An area within the modem used to store the modem's firmware. 3800Plus modems have
	two data banks.
data carrier	A continuous frequency signal that can be modulated by another signal that contains
	information to be transmitted.
data compression	The elimination of empty fields, redundancies, and gaps in order to reduce storage
	capacity needs and the amount of data to be transmitted. Anything that is eliminated is
	restored after the data is received.
Data mode	One of two general modem operating modes. When in Data mode, the modem transmits
	and receives data instead of accepting commands.

3980-A2-GB30-20 November 1996 Glossary-3