Paradyne COMSPHERE 3610 Operator's Manual page 297

fallback
FCC
Front-End Processor
(FEP)
full-duplex
generator
IEC
LADS
LATA
LCD
LDM
LEC
LED
link-level address
Link Problem
Determination Aid
(LPDA)
LSD
modular circuit card
modular DSU
3610-A2-GB91-90
Retraining of a V.32 DBM at a lower rate or speed.
Federal Communications Commission. Board of commissioners that regulates all
interstate and foreign electrical communication systems that originate from the
United States.
A communications computer associated with a host computer that manages the
lines and routing of data through the network.
Describes a line discipline characterized by simultaneous two-way transmission.
A circuit in a DSU or in external test equipment that produces a continuous string
or stream of known data patterns.
InterExchange Carrier. A company that provides inter-LATA (local exchange
carrier) telecommunication services, like AT&Tr, MCIr, and Sprintr. Access to
these services can be provided through DDS dedicated channels, T1.5 dedicated
access channel, or digital switched access (DSA) channels.
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.
Local Area Transport Area. A region served by a local exchange carrier (LEC) that
consists of one or more area codes.
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 ''written" on the display.
Limited-Distance Modem (also called a local area data set or LADS).
Local Exchange Carrier. A company that provides intra-LATA (local exchange
carrier) telecommunication services, like NYNEX or Bell South.
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., Alarm).
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).
A series of testing procedures used in NetView that are initiated by the network
control program (NCP) that provides the status of modems and attached devices,
and the overall quality of the link.
EIA received Line Signal Detect lead (V.24 circuit 109).
Model 3611 circuit card (DSU, DBM-V, DBM-S, DBM-D, TDM, or MCMP) that is
removable from the front of the carrier without disconnecting the DTE cables.
A Model 3611 DSU circuit card that contains gold finger contacts and is used with
a rear connector plate. This circuit card type is easily removed from the front of the
carrier without disconnecting the DTE cables.
July 1999
Glossary
Glossary-5