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Conditional Access System
Preliminary
System DVCrypt is the firmware complex of the guarantee of a paid survey of television programs in the networks of multichannel digital cable and MMDS television, hotels est. with a relatively small quantity of clients At present system is located in the stage of development. It is assumed work within the framework of standard Dvb-C with the standard receivers of signals Dvb-C Set- Top- Box (further on text STB), equipped CAM module.
Composition of the system:
The hardware: Converter 6 analog TV signals (video + of stereo audio) or 4 TS ASI into the signal of size Dvb-C at the intermediate frequency of the cable television. To 32 converters in the system. Programmer of user cards. One, unique for each network. Standard receiver STB of the digital cable television Dvb-C. According to the number subscriber digital packet v in the network. Personal computer with the operating system Windows XP/2000.
Base program part: Controlling program DVCrypt. Program of the personalization of cards.
System DVCrypt will be characterized by the following possibilities:
Use standard Dvb-C of receivers. Multistage protection from the unsanctioned survey. Control to 32 converters according to the sequential interface Rs-485 from one technological computer of standard assembly. The work of converter is accomplished in the automatic regime. The interference of the manager of computer in his work is produced only for load and changing the parameters of ciphering system. Conducting the base of data (without the bookkeeping calculation) to 64000 subscribers. Control of subscription to 192 programs of the united into the practically sufficiency packets (theoretically to 128). The batch of the programs permitted to the survey can be formed practically arbitrarily and it can operationally change for each user. The correspondingly prepared card is used for the access to the closed slots. As the basis for this card are used cards FUNCARD widely used in different systems of the limited access. Possibility of the mixing of the colored logotype of network into each of the transmitted channels.
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CA_SYSTEM_ID= 0x4AEC
http://www.dvb.org/
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