
Axon carried out a successful first experience 4K signal distribution over Ethernet AVB El AVB-Ethernet comienza a perfilarse como una interesante alternativa en el rea de producci n en directo, en lugar de utilizar 4 cables coaxiales.
Axon llev a cabo coincidiendo con IBC una serie de pruebas de distribuci n de contenidos en Ultra Alta Definici n 4K a trav s de Ethernet utilizando AVB (Audio Video Bridging), mostrando as las posibilidades de esta tecnolog a como alternativa a la banda base con cableado coaxial.
Audio Video Bridging (AVB) es el conjunto de las normas t cnicas elaboradas por el Institute of Electrical and Electronics Engineers (IEEE) por el Grupo de Trabajo de Audio Video Bridging del Comit de Normas IEEE 802.1. Su especificaci n incluye elementos destacables como sincronizaci n/timing de la red y gesti n de la calidad del servicio/banda.
Una de las ventajas del uso del AVB es que no hay ning n requisito para la gesti n de la direcci n IP lo que facilita el desarrollo de soluciones plug and play'. Un nuevo dispositivo (o nodo AVB ) se registran autom ticamente en la red y queda autom ticamente disponible para vincularse con otros dispositivos. Las conexiones se establecen con una latencia muy baja. Dado que los switches son parte del mecanismo de transporte, el sistema es muy f cil de configurar.
Para llevar a cabo esta experiencia, Axon emple un switch Extreme Networks para 2 cuadrantes y los otros 2 cuadrantes fueron transportados en otro switch Extreme m s otro Arista. El AVB garantiza un timing perfecto con respecto al tiempo de la imagen en salida.
De esta forma, el AVB-Ethernet comienza a perfilarse como una interesante alternativa en el rea de producci n en directo, en lugar de utilizar 4 cables coaxiales.
Axon tambi n demostr flujos de audio independientes (intercom y monitorado de audio) a trav s de AVB-Ethernet. Esto demuestra que el audio y el v deo pueden transportarse en base a la tecnolog a AVB-Ethernet simult nea e independiente, algo que no es posible con la norma S2022 centrada en el transporte a mayor distancia en lugar de producci n en vivo.
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