Glossary
© 2012 Harmonic Inc.
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ProView 7000 v.2.6, Rev. E
BISS
Basic Interoperable Scrambling System. An open standard for protecting digital contribution
applications.
Bit rate
The average bitrate of the bit stream, in bits per second, during the sampling period.
Black video
A video signal where there is no luminance or chrominance information. Either intentionally created
for a short period of time or the result of a failure in a transmission system.
BNC
A standard coaxial cable connector named for the inventors (Neill and Concelman) and the connection
type (bayonet).
BOOTP
Bootstrap Protocol. Used to supply hosts with IP addresses and a
boot file name. BOOTP requests
and replies are encapsulated in a User Datagram Protocol (
UDP
) packet. The BOOTP server uses an
address resolution protocol (ARP) cache to map MAC addresses to IP addresses. When the server
receives a BOOTP request from a MAC address listed in its cache, the server sends a reply to the
C
CA
Conditional Access. Provides operator control over customer access to broadcast materials.
CA Descriptor
A descriptor which may be added to the
and identifies the
system and other information
related to that system.
CAM
Acronym for CA Module and is a standardized card which is used to unscramble services.
carrier frequency range
For a receiver, the range of valid input signals.
CAS
Conditional Access System. Scrambles the programming material and allows conditional access to the
descrambled information on the basis of subscriber authorization. In consumer applications, CAS
allows access to certain programs on the basis of a monetary exchange. In commercial applications,
CAS allows controlled access to proprietary programs.
CAT
Conditional Access Table. The CAT informs the receiver of conditional access system (
CAS
) information,
such as the
stream for provisioning the receiver.
