
Original — December 1991
UM4.6:CS6003
Glossary-17
L
LAN Acronym: Local Area Network
Last In, First Out (LIFO)
An order for handling or processing items placed in a queue or buffer.
The last item placed in the queue or buffer is the first item retrieved for
use. A LIFO queue is often called a stack. [See First In, First Out
(FIFO)]
LD Acronym: Local Device
Least-Significant Digit (LSD)
The lowest-value position of an integer; used in the control panel of
certain products.
LED Acronym: Light-Emitting Diode
LIFO Acronym: Last In, First Out
Light-Emitting Diode (LED)
An electronic component that generates a small focused beam of light, in
response to a current passing through. LEDs are available in several
colors, depending on the type of crystal they contain.
LM Abbreviation: Limit
LO Abbreviation: Low
Local Area Network (LAN)
A group of electronic devices that are relatively close to each other
(usually less than two miles apart) and communicate with each other
using a frequency range of several megaHertz. LAN communication
includes a switching capability. An LAN has inexpensive communication
media, such as coaxial or twisted-pair cable; usually the owner of the
electronic devices also owns the communication media.
Local Device (LD)
Any PROVOX device that resides on a local highway and therefore
communicates directly with a local traffic director.
Local Ground Point (LGP)
A central termination point for all signal common and power supply
common circuits within a cabinet group of eight or fewer bays.
Local Traffic Director (LTD)
A communications device that controls the data flow on a local data
highway. As many as 30 devices can be on the highway. An LTD also
stores and forwards messages to other local areas.
LAN - Loc
Glossary
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