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    AVIT - The Expert of DVB Solutions
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       - Zhengzhou CATV
       - Hubei CATV
       - Shenyang CATV
    Home >Solutions >Guideline

     Standardization: Primary Guideline
     - SO/IEC 13818 Info tech- general code of moving graphics & accompanying sound.
     - Business Info (SI) standard (DVB-SI) in EN 300 468 DVB system.
     - Standard of Graph & text transmission bit streams: (DVB-TXT)300 472 DVB.
     - EN 101 192 DVB Standard (DVB-DATA) of Data Broadcasting.
     - TR 101 202 Data Broadcasting guide.
     - TS 102 201 DVB IRD Interface tech standard (DVB-IRD).
     - EN 50221 About Conditional Accessing and other common interfaces of DVB decoders (DVB-CI).
     - TS 101 197-1 DVB Simulcrypt receiving standard (DVB-SIM).
     - ETR 289 Common Scrambling System Description (DVB-CSA).
     - ETR 154 Application guide of MPEG-2 System, Video & audio in satellite, cable and  terrestrial systems. (DVB- MPEG).

     Expandability: Brings long-term vitality for the system
     Three crucial system capabilities we care most:
     - Expandability of business.
     - Management capability of relative business.
     - Upgrade capacity.

     Measures to guarantee these three capabilities:     
     - System and subsystems strictly  complying to according standards.
     - Focus on Network Management System ( ROSA ), Subscriber Management System (SMS), CA System.
     - Modulated standard equipment + open software module design is a key insurance of smooth upgrade.

     Focus: System, Efficiency and Reliability
     How to ensure system Efficiency
     - Balance ‘backup’ and ‘efficiency’ .
     - Take resource utility rate of relative equipment into consideration from the beginning of equipment model selection stage.
     - Focus on management efficiency of overall system and centralized management.

     How to ensure System Reliability
     - For common equipment in the system: pick industrial- class equipment provided by renowned manufacturers.
     - For sub business system: Hardware & software should be complying with reliability requirement. 
     - Key factors: feasible environment, proper operation and management.     

     System Economics – profitability
     Investment stages  
     - Stage I: Realize multiple digital TV program broadcasting, optimize system platform, establish subscriber base, cumulate experience;
     - Stage II: Add verified value-added services, expand subscriber scale, optimize verified tolling system;
     - Stage III: Further exploit high-end subscriber service type.   

     System Profit
     - Initial profit: Subscriber monthly rent and STB sales profit.
     - Mid-term profit: Gradually increase proportion of value-added service profits.
     - Long-term profit: Based on optimized toll management and operating structure, various types of high-end subscriber services ensures the persistent increase of profit.


    Zhengzhou Digital TV Business Syterm

      Phase I completing time:  December 2001
      Project Scale:  Totally 12 Analogue Channels
      Chief System Integrator : AVIT

    Hubei Provincial Digital TV Business Sytesm

      Phase I completing time:  December 2001
      Project Scale:  Totally 12 Analogue Channels
      Chief System Integrator : AVIT

    Shenyang Cable Digital TV System

      Phase I completing time: September 2001
      Phase II completing time: April 2004
      Project Scale: Totally 12 Analogue Channels
      Chief  System Integrator :AVIT 

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