Sony Announces IP Transmission System for Live HD Video Production

The NXL-IP55 also works in harmony with the IP transmission features built into Sony’s new HDC-2000 broadcast camera

As part of Sony’s continuing effort to bring IP technology into the world of video production, Sony has developed the NXL-IP55, a video network unit that can transfer multiple HD image signals, audio signals and control signals over a single network cable. These units may be used, for example, when filming in a theatre or stadium, whereby images are transmitted simultaneously from multiple cameras with as minimal delay time as possible. The NXL-IP55 can keep latency to within a single field while sending data streams from multiple cameras over the network cable.

Live multi-camera HD production typically requires image transmission through coaxial cables that are compliant with the serial digital interface (HD-SDI), together with numerous other cables to carry syncing and control signals. However, with the NXL-IP55, only a single standard network is required to interconnect multiple cameras, resulting in simpler setup configurations and greater operational efficiency. As the NXL-IP55 supports bi-directional IP image transfer, any output switches made in the AV room propagate back to the stage-side NXL-IP55 with ultra-low delay, making high-quality large-screen projection possible.

The NXL-IP55 also works in harmony with the IP transmission features built into Sony’s new HDC-2000 broadcast camera. An HDC-2000 setup consists of a camera head and a camera control unit (CCU), connected by a Gbit network transmission line. By connecting an NXL-IP55 unit to each line, it becomes possible to transmit image signals from as many as three cameras. This in turn enables transmission of up to four HD images over a single composite fibre-optic cable, running between the separate cameras and CCUs. These capabilities can significantly enhance dynamic scene shooting when transmitting from sports and stage events.

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By merging IP network transmission with the broadcast industry’s standard HD-SDI infrastructure, the NXL-IP55 is an example of Sony’s commitment to developing the next generation of live image transmission solutions.