Paradyne 3810 manual Ccitt V.42bis

Glossary

CCITT V.17	A fax communications standard for modems operating half-duplex with synchronous
	data at 14,400 bps.
CCITT V.22	A standard for modems operating full-duplex with asynchronous or synchronous data at
	1200 bps over the dial network (PSTN).
CCITT V.22bis	A standard for modems operating full-duplex with asynchronous or synchronous data at
	1200 or 2400 bps over the dial network (PSTN).
CCITT V.27ter	A fax communications standard for modems operating half-duplex with synchronous
	data at 2400 and 4800 bps.
CCITT V.29	A fax communications standard for modems operating half-duplex with synchronous
	data at 7200 and 9600 bps.
CCITT V.32	A standard for modems operating full-duplex with asynchronous or synchronous data at
	4800 or 9600 bps on switched (dial) or leased telephone lines.
CCITT V.32bis	A standard for modems operating full-duplex with asynchronous or synchronous data
	over dial networks (PSTN) or leased lines at 14,400, 12,000, 9600, 7200, or 4800 bps.
CCITT V.42	CCITT standard for error control protocol.
CCITT V.42bis	CCITT standard for data compression.
CCITT V.54	CCITT standard for local and remote diagnostic loopback tests.
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.

3810-A2-GB30-20 November 1996 Glossary-3