This Recommendation defines three categories of STB to support combination of various kinds of
content distribution schemes including RF-based and IP-based networks. It also specifies STB
components and interfaces based on the architecture defined in J.290, J.291 and J.292. This
Recommendation further describes configurable approach in order to support the region-specific
content distribution systems. This Recommendation describes interfaces and behaviours of the
components that constitute the STB in terms of physical issues, protocols, operating system,
software platform, user interfaces, and so on.
In addition, this Recommendation is applicable not only to an external independent box
implementation (i.e. STB) but also to other approaches such as TV panel-embedded
implementation.
Note: This Recommendation covers the existing content distribution systems including cable TV
and IPTV at the time of publication, is subject to modification when a new content distribution
system such as NGN-based IPTV is specified and available.