Abbreviations and Specialized Terms Alphabetical Reference
85
IP
Abbreviation for "Internet Protokoll".
IP address
Also called "Æ IP" in short. The unique address of a terminal device in the
network. It consists of four number blocks of 0 to 255 each, separated by
a point. To simplify the notation, voice names can be released from a
Æ DNS into the IP addresses.
Jitter
Runtime fluctuations in data transmission in Æ IP networks.
LAN
Abbreviation for "Local Area Network".
Layer 2
2
nd
layer (Data Link Layer) of the 7-layer OSI model for describing data
transmission interfaces.
Layer 3
3
rd
layer (Network Layer) of the 7-layer OSI model for describing the data
transmission interfaces.
LDAP
Abbreviation for "Lightweight Directory Access Protocol".
Simplified protocol for accessing standardized directory systems, e.g., a
company telephone directory.
LCD
Abbreviation for "
L
iquid
C
rystal
D
isplay".
Display of numbers, text or graphics with the help of liquid crystal technology.
LED
Abbreviation for "Light Emitting Diode".
Cold light illumination in different colours at low power consumption.
MAC
Abbreviation for "Medium Access Control Address".
A 48-bit address with the help of which a terminal device (e.g., Æ IP tele-
phone or Network card) identifies itself uniquely in a network all over the
world.
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