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Integrated Receiver Decoder (IRD)

An IRD is used to receive encrypted and digitized signals.

These signals can also be decrypted by the IRD. AV signals, digitally transmitted via satellite radio, terrestrial radio, cable, IPTV or ASI transport streams (Asynchronous Serial Interface - serial data via 75Ohm Coax) can be converted back into a simple audio and video signal by the IRD.

The IRDs in professional use are distinguished from IRDs used privately or in the consumer area by a variety of functions. The privately used devices are also called "Set-Top Box". Professional IRDs offer functions and interfaces of the professional production environment. These include SDI outputs, TSoIP inputs (video over IP), AES/EBU audio decoding, LAN/WAN remote control, test card generators, genlock input, rack mount size, and others. 

For example, a signal can be transmitted over IP networks or RF connections and converted by the IRD into an SDI , HDMI, or component signal as well as corresponding audio signals to display them or make them available in the broadcast infrastructure.
 
[size=2][font=Calibri, sans-serif]For this purpose, the devices are also capable of applying certain codecs to the signals. These often include the widely used H.264 and HEVC standards.[/font][/size]

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