Avaya DEFINITY Manual page 326

Glossary
L
LAN Interface
In MAPD, an interface which conforms to all applicable IEEE standards for 10Base-T (10 Mb/sec
Baseband Twisted Pair) LANs.
LAN printing
Printing to a network print server or to a printer that exists as a network node.
Light Emitting Diode (LED)
A red-light indicator on the panel of the system faceplate that shows the status of operations and
possible fault conditions. An unlit LED indicates a healthy system. When flashing, the LED indi-
cates a software problem. When the LED is steadily lit, a hardware problem exists.
Liquid Crystal Display (LCD)
The 10-character alphanumeric display on the faceplate panel of the DEFINITY LAN that automat-
ically shows the status of the system including alarms.
Link
See Adjunct Switch Application Interface link.
Local Area Network (LAN)
A networking arrangement designed for a limited geographical area. Generally, a LAN is limited in
range to a maximum of 6.2 miles and provides high-speed carrier service with low error rates.
Login
A unique code that identifies and authenticates a user to the system.
M
MAC
Media Access Control. Data-link layer protocol that governs access to transmission media.
MCU
Multi-Point Control Unit
MAPD
DEFINITY Multi-Application Platform is an open platform which allows direct integration of applica-
tions into the DEFINITY product line and which also provides integrated connectivity to 10Base-T
legacy LANs. The platform is also known as the DEFINITY LAN Platform. The platform allows
leveraging third party hardware and software for applications across BCS.
MFB
Multi-Function Board. A sandwich board, actually comprised of two circuit boards, TN 566 and
TN2170. The MFB is used for DEFINITY AUDIX and DEFINITY LAN Gateway applications and
can be viewed as the predecessor of the MAPD.
Modem
MOdulator-DEModulator. A device that converts digital signals to analog signals for transmission
across telephone circuits. The analog signals are converted back to the original digital data signals
by another modem at the other end of the circuit.
GL-6
Issue 2 November 2001