Cisco Model D-PCG1000 PowerKEY CAS Gateway User Guide
749606 Rev D
Glossary-1
Glossary
App Server
Application Server. A computer workstation and server used to
execute the application programs, which provide an interface for
downloading application data to the DHCTs. App Server works in
conjunction with the DNCS and the two computers share a common
database.
Application Server
See App Server.
ASI
Asynchronous Serial Interface.
ATM
Asynchronous Transfer Mode. A network protocol designed to
handle all aspects of multimedia: video, audio, and data.
ATM Switch
A device that receives digital data from the DNCS and AppServer
using two separate PVCs. The switch uses classical IP over ATM to
send digital data to a router on the forward data channel.
BFS
Broadcast File System. Primary interface (means of communication)
between the App Server and the DHCTs that are connected to the
network.
BFS BIG
A device that processes the data it receives and sends it to the data
QAM modulator.
BIG
Broadband Integrated Gateway. A device that provides a data
pipeline from the DNCS to the DHCTs.
Brick mode
A state in which a DHCT displays no video or audio and the front
panel LED only displays four dashes (“- - - -“). This state is controlled
through the use of a brick mode avoidance package. If the DHCT is
not authorized for this package, then the DHCT enters brick mode.
Brick mode is sometimes called “Allow Service Disconnect.”
CA
conditional access. Consists of the system, software, and components
necessary to provide for selective access or denial of specific services
in a network. Establishes means by which a cable service provider
can collect subscriptions or other payments for services received.
CableCARD
See POD module.
CAM
Conditional Access Manager. Network encryption control,
entitlement definition and management, and authorization control
(see PowerKEY).
CAQAM
Conditional Access Quadrature Amplitude Modulator.