CXP cable, or CoaXPress cable, is a coaxial cable used for camera data transmission.
Basic Concepts
CXP is an asymmetric high-speed point-to-point serial transmission protocol, mainly used for the transmission of video and static images in scenarios such as scientific cameras, industrial cameras, medical images, aviation and defense, to replace the previous cameralink protocol.
Performance characteristics
High-speed transmission: The maximum speed of a single lane of the CXP 2.0 standard can reach 12.5Gbps, and the transmission speed can be increased through multiple channels. For example, 4 cables can provide a data rate of up to 50Gbps.
Long-distance transmission: The line length can reach 100m at a rate of 3.125Gbps and 35m at a rate of 12.5Gbps.
Integrated power supply: A single cable can provide 24V, 13W power supply, reducing additional power wiring.
Control signal transmission: In addition to transmitting image data, a single lane can also transmit 42Mbps low-speed control signals for accessing camera register configuration.
Real-time low latency: Data transmission is real-time, low and fixed, and the trigger signal has high accuracy, such as 20.83Mbps At the control signal link speed, the trigger signal has a fixed 3.4us delay from HOST to DEVICE, with an accuracy of ±4ns.
Physical characteristics
CXP cable uses 75Ω coaxial cable, common specifications are RG59 and RG6, RG6 is recommended, which is cheap, has good flexibility and anti-interference ability, and is easy to install and wire.
Application advantages
Simplified system integration: image, control communication, and power supply can use the same cable, which is easy to integrate and reduces system complexity and cost.
Support hot plugging: The device can be plugged in and out while the system is running, which is convenient for maintenance and upgrade.
