CA System
– refers to the particular method used in the decryption of TV signals. Several companies provide competing CA systems. VideoGuard (NDS), Ir**to Access, Nagravision, Conax, Viaccess, B-CAS (Multi 2), and Mediaguard (SECA) are among the most commonly used CA systems.
SmartWi currently supports these CA Systems:
Seca Mediaguard 1 & 2
Viaccess 1, 2 & 3
Cryptoworks
Conax (without pairing)
Ir**to 1 & 2 (without pairing)
DRECrypt
TongFang
B-CAS (Multi 2)
Some CA Systems are so-called proprietary – indicating that only decoder/set-top boxes provided by the Operator will function, and the viewing card must be inserted in this box during operation.
The card is normally ‘paired’ with the box and cannot be used in other boxes. This also means that flat screen TV with embedded card reader or CA Module does not function with these systems. Among these systems are presently
NDS Videoguard
Nagravision
Ir**to (with pairing)
Conax (with pairing)
Currently SmartWi does not work with systems using pairing. Basically, SmartWi only works when the operator viewing card can be removed from the decoder box and inserted in the SmartWi Master.
Read more about CA Systems on Wikipedia here.