User's Manual

Glossary
BreezeMAX Modular Base Station System Manual 291
UTC Coordinated Universal Time. The reference for the official time used
by all countries in the world, and it is independent from the time
zones. The modern implementation of Greenwich Mean Time.
VLAN Virtual Local Area Network. A group of devices on one or more LANs
that are configured with the same VLAN ID so that they can
communicate as if they were attached to the same wire, when in fact
they are located on a number of different LAN segments. Used also
to create separation between different user groups.
VLSI Very Large Scale Integration. The process of placing thousands (or
hundreds of thousands) of electronic components on a single chip.
VoIP Voice over Internet Protocol. Provides an advanced digital
communications network that bypasses the traditional public
switched telephone system and uses the Internet to transmit voice
communication. VoIP enables people to use the Internet as the
transmission medium for telephone calls by sending voice data in
packets using IP rather than by traditional circuit switched
transmissions of the PSTN.
VPL Virtual Private Link. A virtual connection between two points on the
network, such as a base station and a service provider or corporate
network. Identified by the VPL ID, with functionality that is similar
to VLAN ID (VLAN on the backbone network).
VPN Virtual Private Network. A private network of computers that's at
least partially connected by public lines. A good example would be a
private office LAN that allows users to log in remotely over the
Internet (an open, public system). VPNs use encryption and secure
protocols like PPTP to ensure that data transmissions are not
intercepted by unauthorized parties.
WAN Wide Area Network. A computer network that spans a relatively large
geographical area. Wide area networks can be made up of
interconnected smaller networks spread throughout a building, a
state, or the entire globe.
WCS Wireless Communications Services. The variety of services available
using frequencies in the 2.3 GHz band for general fixed wireless use.