NSG 9000-6G - Harmonic Inc

Chapter 3 Configuring Platform Parameters
Configuring QAM-RF Modules
3.12.1.4 Configuring a Global QAM Manager
To configure a QAM Manager
1. Select Platform > General tab.
2. In Back Panel View, select Chassis.
3. Select the Global RF& QAMs tab.
4. Focus on the QAM Manager section:
5. To select a QAM manager for all of the QAM-RF modules, open the QAM Manager list
and select the required QAM Manager. See, Table 3-10: QAM Manager on page 50.
6. To send configuration to all of the QAMs, click Set All QAMs.
NOTE: The configuration will take effect once you click Apply.
Once you are done with this configuration, move on to configure each module by selecting
the required module and the Module tab.
3.12.1.5 Locking Symbol Rate
For future use only.
3.12.2 Configuring a QAM-RF Module
1. Select the Platform tab.
2. In Back Panel View, select the required slot.
3. Select the Module tab.
4. Define/View the following module information:
Expected Module Type - Read only. The module type is NSG-8R1G, OCTAL, up to
eight QAM-RF channels per RF port.
Actual Module Type - Read only. Currently not applicable.
ITU-T ANNEX - open the list to select the required encoding mode. Changes to the
encoding mode override the encoding mode configured during global module
configuration. See Table 3-7: Encoding Mode on page 44.
Constellation - select the required constellation. The Constellation is the type of
Quadrature Amplitude Modulation (QAM) used. QAM constellation affects Data Rate
and Symbol Rate, and must be set according to HFC network properties. Valid values
are: Annex-A or Annex-C: 16, 32, 64, 128, 256. Annex-B: 64 and 256.
Changes override the constellation configured during global module configuration.
© 2012 Harmonic Inc. 46 NSG 9000-6G, Version 2.7, Rev B