Transmodulation from IPTV to FM
This cassette mainly converts two digital data streams (MPTS) to 12 FM frequencies. Moreover these are the interfaces which make this new cassette multifunctional and universal. It commands an ASI input and an ASI output (ASI = Asynchronous Serial Interface acc. EN 50083-9) as well as a 100 MBit LAN interface (Ethernet). Therewith data streams of the digital signals can be collected or can be fed from external sources.
Additional there is a Common Interface (CI). With it encrypted signals (e.g. Pay TV) can be decoded. Up to 12 channels can be decoded with the smartcard of the provider depending on the Conditional Access Module (CAM). The integrated TPS module serves for data processing of the demodulated transport stream: This allows service information to be changed (NIT – Network Information Table) data rates increased (stuffing) and individual programs to be deleted from the transport stream, whereby the remaining channels can then be transmitted with bandwidth optimization. Moreover, the Operator ID can be set.