It is a specification for an interactive on-demand multimedia satellite communication system formulated in 1999 by the DVB consortium.
[2] Without this method, various degrees of interactivity can be offered, without implying any return channel back from the user to the service provider: Data Carrousel or Electronic Programs Guides (EPG) are examples of such enhanced TV services which make use of “local interactivity”, without any return path from customer to provider.
The "+M" version added several new features, such as the ability to use "DVB-S2" bursts in the uplink channel back to the satellite.
[4] In contrast to other satellite communications systems, DVB-RCS was created in an open environment where any DVB member can participate.
The work group called "DVB TM-RCS" is currently pursuing other technical solutions for the approved commercial system.
However, in remote areas cable connections may be unavailable, two-way communication was then impossible via traditional means.
DVB-RCS is a mature open source satellite communication standard with highly efficient bandwidth management.
The user sends requests for service signals via the "SIT" and the uplink channel to the satellite.