Примечания к выпуску для Cisco Headend System Release 2.7
Chapter 1 Why Choose System Release 2.7?
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Enhanced Channel Map Features
The following list includes a few examples of channel map flexibility requested by
customers:
customers:
Create a channel to be used only by a small group of DHCTs in a hub for an
application trial
application trial
Create channels that can be tuned by subscribers of premium services, but are
not visible to subscribers of basic services
not visible to subscribers of basic services
Add a channel that is visible to all high-definition DHCTs but does not appear
on standard-definition DHCTs
on standard-definition DHCTs
Define a “family friendly” channel lineup that omits adult channels, and assign
that channel to subscribers who request it
that channel to subscribers who request it
For More Information
For more information on Enhanced Channel Maps, refer to the Enhanced Channel
Maps User's Guide.
Maps User's Guide.
Support for Configurable Daylight Saving Time
To comply with the Energy Policy Act of 2005, SR 2.7 provides a new user interface
that allows system operators to input, view, change, or delete Daylight Saving Time
(DST) rules. The DNCS database schema and libraries will also be modified to allow
the system to store and update DST rules. This modification allows for the dynamic
configuration of set-tops at the hub level to conform to local DST rules.
that allows system operators to input, view, change, or delete Daylight Saving Time
(DST) rules. The DNCS database schema and libraries will also be modified to allow
the system to store and update DST rules. This modification allows for the dynamic
configuration of set-tops at the hub level to conform to local DST rules.
A new DST button has been added to the System Provisioning tab. Clicking the
DST button displays the Set Daylight Savings Time Rules window. From this
window, you can configure your system so that set-tops automatically adjust for
daylight saving time as it is observed in the different regions your DBDS serves.
Daylight Saving Time rules are applied on a hub basis: after you create rules for
different daylight saving time zones, you can assign a rule to one or more hubs.
Set-tops then use the rule of the hub to which they belong.
DST button displays the Set Daylight Savings Time Rules window. From this
window, you can configure your system so that set-tops automatically adjust for
daylight saving time as it is observed in the different regions your DBDS serves.
Daylight Saving Time rules are applied on a hub basis: after you create rules for
different daylight saving time zones, you can assign a rule to one or more hubs.
Set-tops then use the rule of the hub to which they belong.
Note: For detailed information about support for configurable Daylight Saving Time
in SR 2.7, see Configurable Daylight Saving Time: Manage Time Changes
(on page 20).
in SR 2.7, see Configurable Daylight Saving Time: Manage Time Changes
(on page 20).
Support for Dual Gigabit Ethernet QAM Modulator
SR 2.7 provides support for the new Dual Gigabit Ethernet [GbE] QAM Modulator
(GQAM). SR 2.7 also includes support for Dual GbE port dejitter with automatic
redundant switching between ports.
(GQAM). SR 2.7 also includes support for Dual GbE port dejitter with automatic
redundant switching between ports.
Note: The GQAM may use the second GbE port, instead of the first port, for source
data.
data.