Paradyne 3616, 3615 manual Fep

Glossary

fallback	Retraining of a V.32 DBM at a lower rate or speed.
FCC	Federal Communications Commission. Board of commissioners that regulates all
	interstate and foreign electrical communication systems that originate from the
	United States.
Front-End Processor	A communications computer associated with a host computer that manages the
(FEP)	lines and routing of data through the network.
IEC	InterExchange Carrier. A company that provides inter-LATA (local exchange
	carrier) telecommunication services, like AT&T, MCIr, and US SPRINTr. Access
	to these services can be provided through DDS dedicated channels, a T1.5
	dedicated access channel, or digital switched access (DSA) channels.
LADS	Local Area Data Set (also called a limited-distance modem or LDM). This refers to
	a mode of operation where the control and tributary DSUs are directly connected
	but not passing through a DDS network.
LATA	Local Area Transport Area. A region served by a local exchange carrier (LEC) that
	consists of one or more area codes.
LCD	Liquid Crystal Display. A thin sandwich of two sealed glass plates containing liquid
	crystal material. When voltage is applied, the amount of light able to pass through
	the glass plates is altered so that messages may be ªwrittenº on the display.
LEC	Local Exchange Carrier. A company that provides intra-LATA (local exchange
	carrier) telecommunication services, like NYNEX or Bell South.
LED	Light-Emitting Diode. A light or status indicator on the diagnostic control panel
	(DCP) that glows in response to the presence of a certain condition (e.g., Alrm).
link-level address	NMS communications are directed to a tributary via a link-level address. It takes
	the form of control network address/tributary network address (e.g., 157/04 ± DSU
	control address of 157 and tributary address of 04).
LSD	The state of the received Line Signal Detect lead (V.24 circuit 109).
Network Management System	A set of diagnostic and configuration management tools for a data communication
(NMS)	network, consisting of software programs and dedicated computer hardware.
non-disruptive diagnostics	Diagnostics that are transmitted over the in-band secondary channel or routed
	through a DBM in Standby mode so that bandwidth assigned to the data is not
	affected.
non-disruptive session	Executing the command will not disrupt primary data.
permissive interface	A dial modem operating mode characterized by a fixed output power level of
	± 9 dBm. It is one of two possible operating modes for a DBM connected to dial
	lines (see programmable interface).
option sets	Sets of configuration options that are related and fulfill a specific function. For
	example, the DBM option set, which allows you to configure the DBM to perform
	backup and restoral functions.

3615-A2-GB20-20 December 1996 Glossary-3