Cisco Headend System Release 2.7 Technical References
738184 Rev B
OCAP System Implementation
2-5
Hardware Components of an OCAP System,
Continued
DNCS
The DNCS allows you to authorize and deauthorize hosts to receive specific services,
The DNCS allows you to authorize and deauthorize hosts to receive specific services,
to modify services, and to configure and control other components in the DBDS. A
direct ASI card in the DNCS delivers BFS traffic directly to a QAM device or
multiplexer. The Common Download data carousel utilizes an additional ASI card to
deliver the carousel directly to a QAM device or multiplexer.
OCAP Object Carousel
The OCAP object carousel transports data modules and application server processes
OCAP Object Carousel
The OCAP object carousel transports data modules and application server processes
to the host. In the OCAP system environment, the OCAP object carousel takes the
place of the BFS BIG device.
You may have multiple OCAP object carousels installed in your system for delivery
You may have multiple OCAP object carousels installed in your system for delivery
of application and data files to OCAP hosts.
Note: The BFS is still required for the PowerKEY CableCARD module.
QPSK Modulator/Demodulator
The QPSK modulator works with the QPSK demodulator and the host to provide
Note: The BFS is still required for the PowerKEY CableCARD module.
QPSK Modulator/Demodulator
The QPSK modulator works with the QPSK demodulator and the host to provide
forward signaling and a reverse communications path for interactive video and data
services. The QPSK modulator and demodulator convert digital bit streams to RF
format and RF signals to digital bits, respectively.
QAM / MQAM / GQAM / GoQAM Modulator
These devices use QAM techniques to modulate a digital signal onto a hybrid fiber
QAM / MQAM / GQAM / GoQAM Modulator
These devices use QAM techniques to modulate a digital signal onto a hybrid fiber
coax (HFC) network to deliver voice, video, and data to a host.
PowerKEY CableCARD Module or Virtual CableCARD Module
The PowerKEY CableCARD module, or POD module, uses the PCMCIA card design
PowerKEY CableCARD Module or Virtual CableCARD Module
The PowerKEY CableCARD module, or POD module, uses the PCMCIA card design
and inserts into a slot on a host device (either a set-top or cable-ready television) to
provide conditional access to secure digital content.
The CableCARD module routes the XAIT table to the OCAP host so that the monitor
The CableCARD module routes the XAIT table to the OCAP host so that the monitor
application can be launched from the OCAP host.
OCAP Host
Cisco provides two OCAP host platform environments using either the Explorer
OCAP Host
Cisco provides two OCAP host platform environments using either the Explorer
®
8300HD
™
Set-Top with a PowerKEY virtual POD or an OCAP-compliant host device
with a PowerKEY CableCARD module installed.