THOMSON Amethyst III, User Manual, Page: 298 / 306

Glossary
298 Amethyst III DTV Smart Switch
User Manual
ISO International Standards Organization.
ITU-R International Telecommunications Union - Radio.
Formerly CCIR. Deals with the standardization of wireless communication.
ITU-T International Telecommunications Union - Telecommunications.
Formerly CCITT. Produces global telecommunication standards, and
defines tariff and accounting principles.
LAN Local Area Network.
A local area network is a network that connects computers and devices in
a limited geographical area such as home, school, computer laboratory or
office building.
LED Light Emitting Diode.
MGT Master Guide Table (ATSC)
MIB Management Information Base.
SNMP collects management information from devices on the network and
records the information in a management information base. The MIB
information includes device features, data throughput statistics, traffic
overloads, and errors.
MIP Modulator Information Packet
MTU Maximum Transmission Unit: The size of the largest packet that a network
protocol can transmit.
Multicast Process where a single stream is served from one source to multiple
receivers. The multicast address range is: 224.0.0.0 - 239.255.255.255.
NIT Network Information Table
A mandatory Digital Video Broadcast (DVB) SI table, that provides a
grouping of Transport Streams (TS) and the relevant tuning information.
NMS Network Management System.
NTP Network Time Protocol.
P/F Present/Following
Packet - In networks, a unit of data transmitted over a packet-switching network.
A packet consists of a header followed by a number of contiguous bytes
from an elementary data stream.
- In transport streams, a packet is a small, fixed-size data quantum.
PAT Program Association Table.
It lists all programs available in the MPEG-2 transport stream. Each of the
listed programs is identified by a 16-bit value called program_number.
Each of the programs listed in PAT has an associated value of PID for its
Program Map Table (PMT).