User Guide

NETNode Operations Guide
Commercial in
Confidence
IP Mesh Systems
000-130
R1.8 2015-07-24
Commercial in
Confidence
Page 6-110
T
Means…
TNC
The TNC (threaded Neill-Concelman) connector is a
threaded version of the BNC connector. The connector has a 50 Ω
impedance and operates best in the 0–11 GHz frequency
spectrum.
Transport Stream
(TS)
Transport streams: These streams can contain some MPEG-2
content channels and related audio. All the channels are
multiplexed together, letting the receiver select which to play
back.
U
Means…
UDP
User Datagram Protocol (UDP) Sometimes called fire and
forget because there is no dialog between the sender and
receiver. If the receiver does not receive a packet, the sender will
not know. But, UDP is very satisfactory when there is a small risk
of errors (like in your LAN), or when TCP can give "too late"
delivery.
USB
Universal Serial Bus.
UVMS
Universal Video Management System, a network video
recorder storage solution from BAE Systems. Gives full archiving
coupled with live and retrospective viewing.
Unicast
Unicast is simply sending packets from one source to one
destination. For example, from one web server to one (or each)
person viewing a page on a web browser.
V
Means…
VHF
Very High Frequency – 30 MHz to 300 MHz
V
Volt.
Viterbi Decoder
A Viterbi decoder uses the Viterbi algorithm for decoding a bit
stream that has been encoded using forward error correction
based on a Convolutional code.