DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r
555-233-115 Issue 1
April 2000
Glossary and Abbreviations

GL-29

K
kHz
Kilohertz
kbps
Kilobits per second
kbyte
Kilobyte
kg Kilogram
L
LAN
Local area network
LAP-D
Link Access Procedure on the D-channel
LAPD
Link Access Procedure data
LATA
Local access and transport area
lb Pound
LBO
Line buildout
LDN
Listed director y number
LDS
Long-distance service
LEC
Local exchange c arrier
LED
See light-emitting diode (LED).
light-emitting diode (LED)
A semiconductor device that produc es light when voltage is applied. LEDs provide a visual
indication of the operational status of hardware components, the results of maintenance tests, the
alarm status of circuit packs, and the activation of telephone features.
lightwave transceiver
Hardware that provides an interface to fiber-optic cab le from port circuit packs and DS1 converter
circuit packs. Lightwave transceivers convert electric al signals to light signals and vice versa.