Cisco Headend System Release 2.7 Release Notes

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Chapter 1    Why Choose System Release 2.7? 
 
 
 
4012155 Rev B 
 
Enhanced Channel Map Features 
The following list includes a few examples of channel map flexibility requested by 
customers: 
 
Create a channel to be used only by a small group of DHCTs in a hub for an 
application trial 
 
Create channels that can be tuned by subscribers of premium services, but are 
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 
 
Define a “family friendly” channel lineup that omits adult channels, and assign 
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
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.  
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. 
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). 
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. 
Note: The GQAM may use the second GbE port, instead of the first port, for source 
data.