Nevion unveils products for all video transport protocols/MRV SFPs earn US Patent for HD-SDI video over fiber transport
AUGUST 19, 2010 — Nevion (formerly Network VPG), a video transport provider for broadcasters, service providers, and government entities worldwide, has announced new products designed to enhance suites for all video transport infrastructures. The new offerings in the Ventura platform are intended to advance video transport capabilities and performance for video over IP, SDH/SONET, and fiber overlay networks.
For video over IP, the enhancements to the VS908 multiplexer deliver security through AES encryption of video and privacy through IP networks via VLAN tagging, while a variable jitter buffer maintains high quality in jitter-prone, packet-based networks. The standards-compliant VS908 can function as a pair or as a single node, interoperating with other standards-compliant modules.
The new generation of Ventura VS901 JPEG 2000 codecs offers visual quality by providing higher-compressed, bit rates and support for 3G, while maintaining the lowest latency available on the market. The VS901 series also provides users with greater quality control through the ability to change luma-chroma ratios and transmit only the luma for specialized applications.
The VS901-SED-03 JPEG 2000 codec for SDH/SONET compresses SD-SDI videos at mathematically lossless rates, and HD-SDI at visually lossless rates, mapping its output onto STM-1/OC-3. It can also transport DVB/ASI signals when applied, providing flexibility in network provisioning and use. Continuing the tradition of TDM multiplexing, the VS811-SHM enables customers to use available STM-16/OC-48 bandwidth to transport eight SD-SDI signals or one HD-SDI and two SD-SDIs. Nevion’s VS731-TRX enables customers to remotely connect to IP-based management devices over a traditional video or SONET network by converting IP into ASI.
The VS551-SDI is a universal video-to-fiber adapter, which automatically recognizes and accepts input in any professional video format (digital or analog), converting and embedding analog audio or AES audio into SD-SDI. The VS252-3G-JM-SFP-SFP is a universal digital video transport system that supports 10Mbps to 3Gbps signals with jitter management and protection switching.
AUGUST 23, 2010 — MRV Communications Inc. says that its line of digital video small form-factor pluggable (SFP) interfaces used for transporting serial digital interface (SDI) and high-definition serial digital interface (HD-SDI) video over any fiber-optic network has been granted United States patent No. 7,688,231.
MRV used an encoding algorithm based on the EG-34 industry standard in its SFP interfaces. The SFPs enable transmission of digital video SDI or HD-SDI over fiber via standard, off-the-shelf optical transport equipment.
Previously, this type of video data was primarily transmitted on copper coaxial cables, with transmission distances limited to several hundred yards. For longer distances, a dedicated network with separate fiber-optic cables and specialized transmission equipment needed to be built. That’s because the data-scrambling algorithm of SDI and HD-SDI video is incompatible with standard optical systems.
MRV’s digital video SFP enables this data to be transmitted over fiber using standard optical transport equipment, reducing costs and increasing network flexibility.
MRV’s digital-video SFPs are available for the SDI (270 Mbps) standard, and both the PAL/SECAM (1.485 Gbps) and NTSC (1.4835 Gbps) standards of HD-SDI.
