Руководство Пользователя для Cisco DNCS System Release 2.8.1 3.8.1 4.3.1
Optional Network Configurations
Network configurations often start from a standard, or typical, network configuration and are modified from this
basic configuration according to the needs of each cable service provider. In addition to any unique modifications
made for a particular provider or site, We provide the following optional configurations that can be combined
with a typical network configuration.
basic configuration according to the needs of each cable service provider. In addition to any unique modifications
made for a particular provider or site, We provide the following optional configurations that can be combined
with a typical network configuration.
Note: For an overview of the elements used in a typical configuration and in any of the following options, see
.
System (BFS) data directly to your BFS QAM modulator, providing you have installed an ASI card on the
DNCS. With Direct ASI, you eliminate the need for a BFS BIG. Support for Direct ASI requires the
installation of SR 2.5 (or later), SR 3.5 (or later), and the installation of an ASI card on your DNCS. (Our
RCS option includes the use of Direct ASI.)
DNCS. With Direct ASI, you eliminate the need for a BFS BIG. Support for Direct ASI requires the
installation of SR 2.5 (or later), SR 3.5 (or later), and the installation of an ASI card on your DNCS. (Our
RCS option includes the use of Direct ASI.)
manufactured by us or by other vendors. Support for Overlay technology requires the installation of SR
2.5 (or later), SR 3.5 (or later), and enabling the SR software license and the Overlay software license.
GoQAM modulators are key components of Overlay technology. GoQAM modulators receive both the
clear and encrypted content data, combine the two data streams into a single transport stream, and
then send this partially encrypted stream to hubs that feed DHCTs manufactured by us or another
vendor.
2.5 (or later), SR 3.5 (or later), and enabling the SR software license and the Overlay software license.
GoQAM modulators are key components of Overlay technology. GoQAM modulators receive both the
clear and encrypted content data, combine the two data streams into a single transport stream, and
then send this partially encrypted stream to hubs that feed DHCTs manufactured by us or another
vendor.
- Networks running a Regional Control System manage remote sites from a
centrally located DNCS. Because all system management is done from a central location, there is no
need for system operators to be physically located at remote sites. An RCS must be used with Direct
ASI, and may be used in conjunction with Overlay technology. Support for an RCS requires the
installation of SR 2.5 (or later), SR 3.5 (or later), and enabling the software license.
need for system operators to be physically located at remote sites. An RCS must be used with Direct
ASI, and may be used in conjunction with Overlay technology. Support for an RCS requires the
installation of SR 2.5 (or later), SR 3.5 (or later), and enabling the software license.
Important: When we first install your system, we configure the routes that are needed for all of the
network elements to communicate with each other. However, if you add new network elements, new
routes will need to be configured. In this case, we encourage you to have a service agreement or other
means available for having these routes configured by qualified personnel.
network elements to communicate with each other. However, if you add new network elements, new
routes will need to be configured. In this case, we encourage you to have a service agreement or other
means available for having these routes configured by qualified personnel.
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