Cisco Headend Digital Broadband Delivery System
4001703 Rev B
Why Choose System Release 4.0?
1-27
More DNCS Enhancements: Improvements Make Familiar Tasks Easier,
Continued
Use MQAMs and GQAMs To Feed Multiple Hubs
A new user interface allows you to associate individual RF outputs in an MQAM
modulator (MQAM) with specific hubs or RF output carrier groups with hubs for
GQAM modulators (GQAMs). This feature is useful in special instances where you
have a need to feed multiple hubs, such as when you configure public education and
government (PEG) services. Refer to the Configuring Simulcast Services at a Sub-Hub
Level Technical Bulletin for details.
To access this new interface, click the Hubs button under the Port To Hubs column
To access this new interface, click the Hubs button under the Port To Hubs column
in the Basic Parameters tab for the Set Up MQAM window.
When you click Hubs, the RF Output
Port window opens.
To send data from this MQAM to only
To send data from this MQAM to only
specific hubs in the headend, select the
hub name in the Available Hubs field
and then click Add. The hub name
moves into the Selected Hubs field.
Repeat this step for each hub you want
to receive data from this MQAM.
If you want to send data from this
If you want to send data from this
MQAM to all hubs in the headend,
make sure no hubs appear in the
Selected Hubs field. Any QAM with no
hubs selected is considered to be
feeding all hubs. This allows you to
add hubs without having to modify
the configuration for QAMs.
Click Hubs to open the RF
Output Port window, where
you can associate output
ports with specific hubs.
Output Port window, where
you can associate output
ports with specific hubs.