Thrane&Thrane SAILOR 700 VSAT, User Manual

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SAILOR 700 VSAT User Manual
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Appendix C - Glossary
Twisted Pair
Cable type consisting of multiple pairs of cable in which two wires are spiraled
together to reduce electromagnetic noise. Can be either shielded (STP) or
unshielded (UTP). Used extensively in LANs and telephone networks.
Tx
Transmit.
URL
Uniform Resource Locator. Address of a web page or file on the World Wide Web.
Consists of three parts: (1) protocol (such as “http”), (2) IP address or domain name
(such as “www.thrane.com”), and (3) name of the web page or file to be retrieved
from that address (such as “index.html”).
USB
Universal Serial Bus. Bus standard for connecting peripheral devices to a
computer. Supports a data rate of 12 Mbps.
UTP
Unshielded Twisted Pair. Cable consisting of four twisted pairs (8 wires), usually
terminated by RJ45 connectors. Commonly used in LANs.
VMU
VSAT Modem Unit. The modem unit performing the "translation" of voice or data
signals into signals that can be transmitted over satellite.
VoIP
Voice over Internet Protocol. Allows telephone conversations to be routed via the
Internet.
VSAT
Very Small Aperture (< 3m) Terminal. Communications system in which multiple
users connect via satellite to a single land-based hub, which handles the routing
of all network traffic.
WAN
Wide Area Network. A group of computers, devices, and possibly LANs, linked
together over a large geographic area.