NSG 9000-6G - Harmonic Inc

NSG 9000-6G - Harmonic Inc NSG 9000-6G - Harmonic Inc

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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

Chapter 3 Configuring Platform Parameters Configuring QAM-RF Modules NOTE: You can configure the Sym Rate 1 & 2 for ANNEX A and ANNEX C only. Symbol Rate - define/view the rate of QAM symbols that are encoded and transmitted per second. You can define the symbol rate in Annex A and C. In Annex B, you can only view its value. Changes override the symbol rate configured during global module configuration. Data Rate - view the defined data rate. Interleaver 1 - view the interleaver values as defined in the QAM tab. NSG 9000-6G has two optional Interleaver values, set the required value for this interleaver. Interleaver 2 - See Interleaver 1. QAM Placement - Read only. Block is the standard placement of adjacent QAM-RFs along the 48Mhz block, depending on the selected ITU-T Annex. RF Template - define/view the RF Template. Define the RF template for Annex B only. View for Annex A and C. The RF template is defined during the global RFs & QAMs configuration. See 3.12.1 Configuring Global RF & QAMs Parameters on page 43. Changes override the RF template configured during global module configuration. 3.12.3 Configuring Module RF Ports 1. Select the Platform tab. 2. In Back Panel View, select the required slot. 3. Select the Port tab. Port 1& 2 are enabled-blue grid 4. For each RF port, define the following: Channels are with license and active RF Enable - select to enable the RF port. Enable the port only after completing the output configuration. #QAMs per Port - select the number of active QAM channels, from 1-8 active channels (Annex B & C) and 1-6 Annex A. The number of active channels is license dependent and by default two channels are active. NOTE: The frequency of the QAM channels is consecutive and each channel utilizes six MHz in Annex B & C or eight MHz in Annex A. © 2012 Harmonic Inc. 47 NSG 9000-6G, Version 2.7, Rev B

Chapter 3 Configuring Platform Parameters<br />

Configuring QAM-RF Modules<br />

NOTE: You can configure the Sym Rate 1 & 2 for ANNEX A and ANNEX C only.<br />

Symbol Rate - define/view the rate of QAM symbols that are encoded and<br />

transmitted per second. You can define the symbol rate in Annex A and C. In Annex<br />

B, you can only view its value. Changes override the symbol rate configured during<br />

global module configuration.<br />

Data Rate - view the defined data rate.<br />

Interleaver 1 - view the interleaver values as defined in the QAM tab. <strong>NSG</strong> <strong>9000</strong>-<strong>6G</strong><br />

has two optional Interleaver values, set the required value for this interleaver.<br />

Interleaver 2 - See Interleaver 1.<br />

<br />

<br />

QAM Placement - Read only. Block is the standard placement of adjacent QAM-RFs<br />

along the 48Mhz block, depending on the selected ITU-T Annex.<br />

RF Template - define/view the RF Template. Define the RF template for Annex B only.<br />

View for Annex A and C. The RF template is defined during the global RFs & QAMs<br />

configuration. See 3.12.1 Configuring Global RF & QAMs Parameters on page 43.<br />

Changes override the RF template configured during global module configuration.<br />

3.12.3 Configuring Module RF Ports<br />

1. Select the Platform tab.<br />

2. In Back Panel View, select the required slot.<br />

3. Select the Port tab.<br />

Port 1& 2 are<br />

enabled-blue grid<br />

4. For each RF port, define the following:<br />

<br />

<br />

Channels are<br />

with license and<br />

active<br />

RF Enable - select to enable the RF port. Enable the port only after completing the<br />

output configuration.<br />

#QAMs per Port - select the number of active QAM channels, from 1-8 active<br />

channels (Annex B & C) and 1-6 Annex A. The number of active channels is license<br />

dependent and by default two channels are active.<br />

NOTE: The frequency of the QAM channels is consecutive and each channel utilizes six MHz in Annex B<br />

& C or eight MHz in Annex A.<br />

© 2012 <strong>Harmonic</strong> <strong>Inc</strong>. 47 <strong>NSG</strong> <strong>9000</strong>-<strong>6G</strong>, Version 2.7, Rev B

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