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CoaXPress (CXP) is a digital interface standard developed for high speed image data transmission in machine vision applications.The name is a portmanteau of 'express' (as in express train) and 'coaxial' to emphasize CoaXPress is faster than other standards (e.g. Camera Link, or GigE Vision) and uses 75 ohm coaxial cables as the physical transmission medium.CoaXPress is mostly used in digital imaging applications but it is also suitable for high-speed transmission of universal digital data.

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  • CoaXPress (en)
  • CoaXPress (fr)
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  • CoaXPress (CXP) is a digital interface standard developed for high speed image data transmission in machine vision applications.The name is a portmanteau of 'express' (as in express train) and 'coaxial' to emphasize CoaXPress is faster than other standards (e.g. Camera Link, or GigE Vision) and uses 75 ohm coaxial cables as the physical transmission medium.CoaXPress is mostly used in digital imaging applications but it is also suitable for high-speed transmission of universal digital data. (en)
  • Le CoaXPress (CXP) est un Protocole de communication asymétrique rapide de type Communication série. Il a été développé afin d’interfacer simplement des capteurs vidéo (device) avec du matériel de capture et d’enregistrement (host) en utilisant un seul câble coaxial, le rendant couramment utilisé en Vision industrielle. Ce standard permet également de servir d’alimentation pour le device. (fr)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/DIN_1o0_2o3_75Ω_male_and_female_connector.jpg
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  • BNC connector and DIN 1.0/2.3 connector (en)
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  • DIN_1o0_2o3_75Ω_male_and_female_connector.jpg (en)
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  • CoaXPress (CXP) is a digital interface standard developed for high speed image data transmission in machine vision applications.The name is a portmanteau of 'express' (as in express train) and 'coaxial' to emphasize CoaXPress is faster than other standards (e.g. Camera Link, or GigE Vision) and uses 75 ohm coaxial cables as the physical transmission medium.CoaXPress is mostly used in digital imaging applications but it is also suitable for high-speed transmission of universal digital data. A 'device' that generates and transmits data (e.g. an industrial digital camera) is connected with one or more coaxial cables to a 'host' that receives the data (e.g. a frame grabber board in a computer). The CoaXPress standard 1.0 and 1.1 supports bit rates up to 6.25 Gbit/s per coaxial cable and the new 2.0 standard supports bit rates up to 12.5 Gbit/s per coaxial cable from the 'device' to the 'host'. The number of cables is not limited by the standard. Some recent CoaXPress cameras and frame grabbers use 8 coaxial cables providing a maximum image data rate of about 4.8 GB/s. The older Camera Link standard can only carry up to 850 MB/s.A low speed uplink, operating at up to 41.6 Mbit/s is available to control the 'device' or for triggering. A CoaXPress 'host' can supply 24 V over the coaxial cable up to 13 W per cable. The CoaXPress standard requires that both the 'device' and the 'host' support GenICam, a standardized generic programming interface.Other than Camera Link that is built upon pure LVDS with no transport layer, CoaXPress transmits data in packets (cf. network packet) using 8b/10b encoding and provides CRC.CoaXPress competes with the standard by the Automated Imaging Association. (en)
  • Le CoaXPress (CXP) est un Protocole de communication asymétrique rapide de type Communication série. Il a été développé afin d’interfacer simplement des capteurs vidéo (device) avec du matériel de capture et d’enregistrement (host) en utilisant un seul câble coaxial, le rendant couramment utilisé en Vision industrielle. Ce standard permet également de servir d’alimentation pour le device. La norme définit des taux de transferts de données sur la voie descendante (device vers host) allant jusqu’à 6.25 Gbit/s par câble en version 1.x et jusqu'à 12.5 Gbit/s en version 2.0. Le transfert des données de contrôle sur la voie montante (host vers device) est fixé à 20.833 Mbit/s en version 1.x et passe à 41.667 Mbit/s lorsque le taux de transfert sur la voie descendante est de 10 ou 12.5 Gbit/s. L’alimentation optionnelle sur le câble coaxial est de 24 V et peut fournir jusqu’à 13 W par lien au device. Le dernier avantage de cette norme réside dans sa possibilité d’utiliser plusieurs câbles coaxiaux en parallèle afin de transférer les données sur la voie descendante. (fr)
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