What is a Conditional Access Module (CAM)?
A Conditional Access Module is a plug-in module to provide the conditional access function usually integrated into a Set Top Box. Slotting into the common interface it provides a standardised physical and logical connection between the decoding/display unit (such as integrated Digital Television) and the conditional access function. The current common interface standard approved by ETSI, DVB-CI (integrated into certain idTVs and some STBs to meet national regulatory requirements), does not allow for encryption of the interface between receiver and the CA module. Another specification has been developed by some members of the Consumer Electronic industry within the “CI Plus Forum”, to ensure this interface is protected.
