Paradyne 3910 Leased line, Link, Local analog loopback, Long space disconnect, Loopback test

Glossary

leased line	A private telephone line connection exclusively for the user. No
	dialing is necessary.
LED	Light Emitting Diode. A light or status indicator on the DCP that
	glows in response to the presence of a certain condition (e.g., an
	alarm).
Link	The physical connection between one location and another used for
	data transmission. See Channel.
local analog loopback	The modem's transmit VF signal is looped to its receiver.
long space disconnect	A disconnect can occur if the modem receives an extended space
	from a remote modem; for example, when a remote modem is
	commanded to disconnect, it transmits a continuous space to the
	local modem before disconnecting.
loopback test	Any test that verifies a device's integrity by connecting the
	device's output to the device's input, then checking the received
	signal for errors.
menu tree	The structure containing the menu hierarchy starting at a
	Top-Level menu and extending down to various modem functions.
mixed inbound rates	In a multipoint network, several different data rates from tributary
	modems' transmitters communicating with one control modem.
MNP	This protocol (Microcom Networking Protocol) detects and
	corrects data errors caused by telephone line noise and signal
	distortion. MNP5 includes data compression.
modem	(Modulator/DEModulator). A device that transforms signals from
	digital to analog form and vice versa.
modulation	The process of varying some characteristics (usually amplitude,
	frequency, and/or phase) of a carrier wave to form data
	transmissions.
multiplexer (mux)	A device that enables the simultaneous transmission of multiple
	independent data streams into a single high-speed data stream.
multipoint line	A circuit connecting one control modem with one or more
	tributary modems.
network	A communications circuit.
network management	The customer-assigned diagnostic address of a modem.
address
NIM	Network Interface Module. The interface provided, up to two per
	carrier, for the public switched telephone network (PSTN).
non-linear distortion	VF line distortion which is usually associated with pulse-code
	modulation (PCM) compandor noise on the phone line.

3910-A2-GN32-30 November 1996 GL-7