Digita taps Nevion for digital-terrestrial move to IP transport

Finnish digital-terrestrial network operator Digita has chosen technology provider Nevio to supply equipment and software to provide transport of signals from its headend to its transmission sites.

The contract is part of Digita’s move to migrate its DVB transport infrastructure from legacy technology to IP.

Nevion’s Virtuoso

Nevion will provide its Virtuoso CP4400 DTT processors at Digita’s headend and 40 transmission sites. The processors will be managed by the company’s VideoPath management software. At the headend, Nevion’s processors wil takel the multiplexed transmission for 22 regions and provide DVB T2 modulator interface and IP adaptation, as well as multiple protection mechanisms, including FEC – forward error correction – for packet loss recovery, SIPS – streaming intelligent packet switching – for dual path transmission and LDO – launch delay offset – for dual stream on single path.

At each transmission site, the Nevion processors receive the protected streams and perform an IP-to-ASI conversion, ready for transmission and enabling re-use of the first generation transmitters.

In addition to the dual streams received over the IP network, the processors also receive an RF signal from nearby transmission sites. According to the company, this provides a further level of protection in case the IP link fails completely. The Nevion Virtuoso CP4400s can switch automatically to the RF signal for re-transmission on the site.

“Our renewal project needs to bring efficiencies fast, and the Nevion solution meets the criteria. For example, thanks to the density and functionality of the Nevion Virtuoso CP4400, we were able to achieve our objectives at the headend less the equipment normally needed. In terms of timing, we are looking for a project completion about faster than is typical for a DTT project, but Nevion has an excellent track record of rapid delivery,” said Markus Ala-Hautala, chief operating officer at Digita.