CoaXPress 2.0
CoaXPress is the world's fastest standard for professional and industrial imaging applications such as machine vision, medical imaging, life sciences, broadcasting, and defense. It's an asymmetric point-to-point serial communication standard that can transmit video and still images over single or multiple coaxial cables. CXP 1.1 cameras have been around for ten years, featuring high-speed downlink links of up to 6.25 Gbps for video, images, and data per cable. The standard connectors used are 75Ω BNC and DIN 1.0/2.3. Currently, with CXP 1.1, the maximum transmission speed per channel is 6.25 Gbps. With CXP-10, CXP 2.0 increases this to 10 Gbps, and with CXP-12, it increases to 12.5 Gbps.
Active Silicon, one of the developers of the CXP protocol, has doubled the uplink speed to 42 Mbps with CXP-12 acquisition cards, allowing trigger rates exceeding 500 kHz. Real-time triggering is a well-known advantage of CoaXPress and is a key feature in many industrial inspection systems. It's noteworthy that the preferred connector for CXP-12 acquisition cards is the Micro-BNC, also known as HD-BNC, allowing for a smaller connector size and more compact hardware. CXP 2.0 introduces multi-destination capabilities, enabling data from a single camera to be output to multiple image acquisition cards on different PCs.
Future versions of this standard are expected to include formal support for GenDC, compatibility with anticipated optical interfaces, and support for serial communication. Speeds may increase with technological advancements.
5GigE
The release of IEEE 802.3bz-2016 aims to provide enhanced standards for twisted-pair Ethernet connections at speeds of 2.5 and 5 Gbps. It fills the gap between the current 1 Gb and 10 Gb Ethernet standards. The resulting standards are called 2.5GBase-T and 5GBase-T, or 2.5 and 5 GigE Vision. It can transmit data at speeds of up to 5 Gbps over standard Cat5e cables, providing greater flexibility. Using ordinary copper twisted-pair cables, this technology can increase data transmission capacity to 100 meters, which is often the standard configuration in traditional systems.
10GigE
10GigE (10 Gigabit Ethernet) is an Ethernet transmission standard initially passed in 2002 as IEEE Std 802.3ae-2002. It specifies Ethernet transmission at a rate of 10 Gbit/s, hence its name, which is ten times that of 1GigE Ethernet.
25GigE
Gigabit Ethernet Vision was released in 2006 with transmission distances of up to 100m. This approach can work when the camera has low resolution or even medium resolution (e.g., 12Mpx) and low frame rate requirements. Now, to achieve higher resolutions and support higher frame rates (i.e., higher bandwidth), the industry is adopting 5, 10, and 25 GigE Vision, which are 5, 10, and 25 times faster than the original GigE Vision interface. Cable lengths are compromised until point-to-point fiber cables for 25GigE take over. Some PCs support the new speeds, but practically any modern PC can add relatively inexpensive network interface cards (NICs) to achieve higher speeds. The 25GigE SFP28 interface provides three options to meet cable length requirements for all applications. The first option is to use SFP28 multimode fiber modules/transceivers and LC-LC multimode fiber cables, with cable lengths ranging from 1M to 70M. The second option uses SFP28 single-mode fiber modules/transceivers and LC-LC single-mode fiber cables, with cable lengths ranging from 1M to 10KM. The third option is to use low-cost direct connections for cable lengths from 1 to 5 meters. Compared to CXP connectors, the connectors for 25 GigE are significantly larger.
FALenses Technology specializes in providing machine vision core hardware. You can go to the official website of FALenses Technology at https://www.falenses.com/ for more information.