Using POLAR CDN, a broadcaster can distribute DVB-T/H transport streams via satellite and terrestrial links directly to transmission sites, respecting SFN synchronization and securing the content. This solution also considers the network redundancy scenario.

In the same way a broadcaster can deliver IP streams from a site to other sites using DVB networks, i.e. satellite links, reaching remote sites where IP connection is “fragile”, impossible or very expensive. The contents can be encrypted allowing the restricted access.

The key component in POLAR CDN is the Orion devices: the Orion Encapsulator in the headend and the Orion Receiver at the remote sites.

The content encryption can be carried out in different ways depending on the target application:

• The content is encrypted with Orion-Crypt, accessed by all possible receivers/users using the same key. Orion-Crypt is an ultra-secure and efective encryption system for satellite content distribution; it doesn't add extra payload and respects SFN synchronization.
• The content access can be managed for a group of receivers/users, through ECMs and EMMs. Although we recommend KeyFly CDN, any CAS with simulcrypt interface can be applied. KeyFly CDN is the SIDSA solution for secure encryption in contribution and distribution networks and specially designed to provide the maximum degree of security and performance.

In case the distribution to transmitters is only made via terrestrial IP links, the broadcaster or content provider can simplify using EtherTV Bridge devices.  EtherTV Bridge IN and EtherTV Bridge OUT are ASI to IP and IP to ASI adapters respectively that permits the transmission of MPEG transport streams over IP networks. This solution takes advantage of the inherent flexibility of IP, to offer broadcasters an efficient, cost-effective and scalable solution for video contribution over IP.