Paradyne 392xPLUS Network management, Address, Non-linear distortion, Off-hook, On-hook

Glossary

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.
NMS	Network Management System. A set of diagnostic and configuration management tools
	for a data communication network, consisting of software programs and dedicated
	computer hardware.
off-hook	A telephone or modem is being used.
on-hook	A telephone or modem is not being used.
Originate mode	The modem is in a state where it is ready to transmit a call. In a dial network, it is the
	modem that makes the call. In a leased-line network, it is one of two sides of the network
	that is selected to be the originating modem.
parity	A way of checking data accuracy by counting the number of bits that have a value of
	one.
PBX	Telephone switching equipment (Private Branch Exchange) dedicated to one customer. A
	PBX connects private telephones to each other and to the public dial network.
permissive interface	A dial modem operating mode characterized by a fixed output power level of ±9 dBm.
phase jitter	A rapid or repeated shifting of the relative phase of a signal resulting in unwanted
	distortion.
physical address	The diagnostic address of a control modem derived from its location in the carrier: its
	carrier and slot number.
point-to-point line	A line or circuit connecting two stations.
poll list	A list containing the network management addresses of downstream modems.
power-up self-test	A test that checks most hardware components when the modem is powered-on.
product code	A three-digit code indicating the modem's highest VF data rate.
protocol	The rules for timing, format, error control, and flow control during data transmission.
PSTN	Public Switched Telephone Network. A network shared among many users who can use
	telephones to establish connections between two points. Also known as dial network.
Quick Configuration	An informative display screen available from the modem's Top-Level display. It provides
display	such information as network position (control or tributary), network management
	address, DTE mode (Asynchronous or Synchronous), Line mode (Leased Answer,
	Leased Originate, or Dial), and the modulation scheme used by the modem.

3920-A2-GN31-30 November 1996 Glossary-7