Cisco Headend System Release 2.7 Release Notes

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Chapter 1    Why Choose System Release 4.3? 
 
 
 
4019358 Rev B 
Dual Port GQAM VOD Redundancy 
This feature provides a solution for VOD redundancy that takes advantage of the 
dual-GbE feature of the GQAM. 
With GQAM software version 4.2 or later, GQAM modulators with dual GbE ports 
support the VOD Redundancy feature.  This feature allows system operators to carry 
VOD and Broadcast services on the same GQAM, thereby leveraging the 
redundancy capability of the GQAM modulator's dual GbE ports. 
 
EAS Channel Suppression 
This feature in the DNCS allows users to specify a list of sources (or no sources) that 
will be added to the Source ID list excluded by SCTE 18 for EAS channel 
suppression. 
In a tru2way environment, use the Enable EAS Channel Suppression field on the Set 
Up Source window to enable EAS channel suppression. Refer to Configuring and 
Troubleshooting the Digital Emergency Alert System
 (part number 4004455) for detailed 
instructions. 
Important: It is imperative that service providers use this feature carefully to 
prevent the suppression of EAS messages for services that do not already carry EAS 
information. We do not take responsibility for the incorrect use of this feature. 
 
Generic QAM Support 
This system release adds support to manage provisioning of generic QAMs through 
the published interface made available to the QAM vendors. 
A Generic QAM button and a Generic QAM Models button have been added to the 
Network Element Provisioning tab. These buttons allow you to add traditional table-
based QAM modulators to the DNCS.  (The DNCS refers to these modulators as 
generic QAM modulators.)  Adding a generic QAM modulator to the DNCS allows 
you to set up sessions on the modulator and manage the sessions. 
However, unlike session-based modulators, generic QAM modulators do not 
support DNCS-supplied provisioning. As a result, specifications saved to the DNCS 
when the modulator is added (or provisioned) in the DNCS are not provided to the 
modulator when the modulator reboots. Instead, the modulator must be provisioned 
separately. For assistance provisioning generic QAM modulators, consult the 
documentation provided by the manufacturer of the modulator. 
Note: You must contact your account manager to enable the feature.  Then, you must 
stop and restart your DNCS processes. 
The following illustrations provide examples of the new Generic QAM and Generic 
GAM Models buttons.