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Digital Television, 2nd Edition by Herve Benoit

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Appendix G: the common interface (DVB-CI)

In order to allow access to pay TV transmissions scrambled according to the DVB standard with a non-service provider specific terminal, the DVB consortium has defined a standardized interface known as DVB-CI (DVB common interface) which allows adjunction of detachable conditional access modules with a PC-Card (ex PCMCIA) form factor, of which DVB-CI is an extension.

This interface is defined in the European standard EN 50221 and the ETSI extension TS 101699 and a few additional documents (implementation guides).

The DVB-CI interface can in principle also be used for other purposes, for example to increase the functionality of the set-top box by means of FLASH memory containing software extensions, to ...

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