Glossary
Bouquet
A collection of services (TV, radio, and data, or any combination of
the three) grouped and sold together, and identified in the SI as a
group. A single service may be in several bouquets.
B-Picture; B-Frame
Bi-directionally Predictive Coded Picture/Frame: A picture that is
coded using motion-compensated prediction from previous I or P
frames (forward prediction) and/or future I or P frames (backward
prediction). B frames are not used in any prediction.
BPSK
Binary Phase Shift Keying: A data modulation technique.
Buffer
A memory store used to provide a consistent rate of data flow.
BW
Bandwidth: The transmission capacity of an electronic line such as
(among others) a communications network, computer bus, or
broadcast link. It is expressed in bits per second, bytes per second
or in Hertz (cycles per second). When expressed in Hertz, the
frequency may be a greater number than the actual bits per second,
because the bandwidth is the difference between the lowest and
highest frequencies transmitted. High bandwidth allows fast
transmission or high-volume transmission.
Byte-mode
Each byte is delivered separately in the ASI transport stream, with
stuffing data added between the Bytes to increase the data rate to
270 Mbps. See DVB Document A010 rev. 1, Section B3.3, (ASI)
Layer-2 Transport Protocol.
CA
Conditional Access: The technology used to control the access to
viewing services to authorized subscribers through the transmission
of encrypted signals and the programmable regulation of their
decryption by a system such as viewing cards.
CAT
Conditional Access Table: Part of the MPEG-2 Program Specific
Information (PSI) data. Mandatory for MPEG-2 compliance if CA is
in use.
C-Band
The portion of the electromagnetic spectrum, which spans the
frequency range of approximately 4 GHz to 6 GHz. Used by
communications satellites. Preferred in tropical climates because it
is not susceptible to fading.
CCIR
See: ITU-R.
CCITT
See: ITU-T.
Channel
a narrow range of frequencies, part of a frequency band, for the
transmission of radio and television signals without interference from
other channels.
In the case of OFDM, a large number of carriers spaced apart at
precise frequencies are allocated to a channel.
Channel Coding
A way of encoding data in a communications channel that adds
patterns of redundancy into the transmission path in order to
improve the error rate. Such methods are widely used in wireless
communications.
2/1553-FGC 101 1014 Uen B
A-3
Summary of Contents for MX8400
Page 1: ...MX8400 Multiplexer Software Version 5 2 0 and later REFERENCE GUIDE 2 1553 FGC 101 1014 Uen B...
Page 26: ...Installing and Powering Up 2 1553 FGC 101 1014 Uen B 2 4 BLANK...
Page 94: ...Operating the Multiplexer using nCompass Control 2 1553 FGC 101 1014 Uen B 4 18 BLANK...
Page 96: ...Preventive Maintenance and Fault finding 2 1553 FGC 101 1014 Uen B 5 2 BLANK...
Page 146: ...Technical Specification 2 1553 FGC 101 1014 Uen B B 20 BLANK...
Page 148: ...Static Parameters 2 1553 FGC 101 1014 Uen B C 2 BLANK...
Page 186: ...Redundancy Modes 2 1553 FGC 101 1014 Uen B E 2 BLANK...
Page 192: ...IP Protocols 2 1553 FGC 101 1014 Uen B F 2 BLANK...
Page 196: ...IP Protocols 2 1553 FGC 101 1014 Uen B F 6 Figure F 3 Editing Stack Download Ports...
Page 198: ...ProMPEG FEC Support for IP Streaming 2 1553 FGC 101 1014 Uen B G 2 BLANK...
Page 204: ...Setting up the SFN Functionality 2 1553 FGC 101 1014 Uen B H 2 BLANK...
Page 212: ...Setting up the SFN Functionality 2 1553 FGC 101 1014 Uen B H 10 BLANK...
Page 214: ...PSIG Support 2 1553 FGC 101 1014 Uen B I 2 BLANK...
Page 220: ...BISS Support 2 1553 FGC 101 1014 Uen B J 2 BLANK...
