What Is CoaXPress?
It is both sprinter and marathon runner at once: CoaXPress, the standard for high data rates
You probably encountered coaxial cables in your youth, maybe from tube TVs with connections to the roof antenna or a cable connector in the living room wall. These cables are now coming back into favor. But by now, the cables are the only thing which the modern interfaces with the CoaXPress standard have in common with their venerable predecessors.
The CoaXPress (or short: CXP) standard was originally launched by six companies in the industrial image processing sector. The goal was to develop a fast data interface that also made it possible to bridge a large data volume across greater distances. The first CoaXPress interfaces were introduced at “VISION”, the leading trade show for industrial image processing in 2008 in Stuttgart. After three more years of development, CXP 1.0 was officially released as a new standard in 2011. Since then the relatively standard has established itself in industrial image processing. This standard was developed further into CXP 2.0 last year.
An interface with the CoaXPress 1.0/1.1 standard supports data rates as high as 6.25 Gbps. The transmission speed of the upcoming CoaXPress standard is twice as high, at up to 12.5 Gbps.
|Property||Interface card||Frame grabber|
|Preprocessing of the image data (e.g. scaling)||No||Yes|
|CPU relief via DMA||Yes||Yes|
|Standard drivers/interfaces (e.g. GenICam)||Yes||Usually|
|Interfaces to image processing software (e.g. Matrox MIL)||Yes||Usually|
|Installation and configuration effort||Low||High|