CoaXPress-over-Fiber Specification Manual
Next-generation industrial image interface
CoaXPress-over-Fiber unravels the technology of the next generation machine vision interface.
CoaXPress (CXP) is the de facto standard for high-bandwidth computer vision applications. The maximum speed of CoaXPress is CXP-12, achieving 12.5 Gbps (gigabits per second) over coaxial copper cables. Link aggregation is commonly applied in CoaXPress, and using four CXP-12 links makes it easy to achieve a bandwidth of 50 Gbps (12.5 x 4). CoaXPress-over-Fiber was initially designed as an add-on to the CoaXPress specification. It provides a means to run the CoaXPress protocol unchanged over standard Ethernet connections that include optical fiber. Euresys began the development and demonstration of CoaXPress-over-Fiber in 2018. The specifications for CoaXPress-over-Fiber were approved in 2021 as an add-on to the CoaXPress standard and are managed by JIIA (Japan Industrial Imaging Association). I will explain the technology of this next-generation interface.
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basic information
The latest product in the CoaXPress-over-Fiber specification, "Coaxlink QSFP28" - One QSFP28 port compatible with a 100 Gbps optical module - 4 connections for 25 Gbps CoaXPress-over-Fiber - Camera bandwidth of 12,500 MB/s - 8GB onboard memory - PCIe 4.0 (Gen 4) x8 bus: bus bandwidth of 13,500 MB/s - 20 digital I/O lines with rich functionality - A wide variety of frame rate control features - Memento event log acquisition tool
Price information
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Applications/Examples of results
**Advantages of Using Optical Fiber** - There are basically no length limitations for fiber connections, so the length of the cable is not an issue. - The connection standards for optical fiber allow for 10 Gbps and 25 Gbps per fiber, providing high bandwidth. - Optical fiber is resistant to electrical noise, offering significant advantages for applications in production floors and the medical field. - Optical fiber is lighter and smaller in size compared to equivalent copper cables. *For more details, please download the PDF or feel free to contact us.*
Detailed information
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Euresys also provides CoaXPress-over-Fiber Bridge IP.
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We are comparing the bandwidth differences with the previous coaxial CXP-6 and CXP-12.
Line up（3）
| Model number | overview |
|---|---|
| Coaxlink QSFP28 | 4 connections 25 Gbps CoaXPress-over-Fiber / Camera bandwidth 12,500 MB/s / PCIe 4.0 (Gen 4) x8 bus / Bus bandwidth 13,500 MB/s / Various frame rate control features |
| Coaxlink QSFP+ | 40 Gbps optical module compatible QSFP+ port / Camera bandwidth 5,000 MB/s / PCIe 3.0 (Gen 3) x8 bus: Bus bandwidth 6,700 MB/s / CustomLogic compatible: Customer-specific FPGA logic |
| Coaxlink CXP-12 to QSFP+ Converter | Easily extend the cable length using CoaXPress-over-Fiber / Achieve connection between CXP-12 camera and Coaxlink QSFP+ frame grabber. |
catalog（4）
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Company information
Euresys is a leading company in the manufacturing of image, acquisition COTS boards, and image processing software. Euresys Japan Co., Ltd. serves as a base for sales and support in Japan, providing high-quality solutions and support to OEMs and system integrators around the world. As an innovative high-tech leader, Euresys designs and provides image and video acquisition components, frame grabbers, FPGA IP cores, and image processing software. Euresys operates in computer vision, machine vision, factory automation, and medical imaging. Euresys's capabilities are further enhanced by the expertise in imaging fields such as GigE Vision, USB3 Vision, CoaXPress, Camera Link, and GenICam, which has been cultivated over 30 years by the recently acquired Sensor to Image. In terms of image analysis, Euresys offers blob detection, subpixel measurement, pattern matching, color analysis, optical character recognition, barcode reading and verification, and 3D verification and classification using deep learning.
