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