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.
