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High-speed differential input signaling levels data sensitivity of D435 with USB2.0

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Ron Vis

Hello,

What is the input signals leveling sensitivity (D+ D- ) of D435 for USB 2.0?

For example - The USB standard defines -+175mV for far-end.

Thank you,

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7 comments

Date Votes
  • Tanx Khaijian
    • Edited

    Thank you for contacting Intel RealSense customer support.

     

    Intel recommends using the USB 3.0 cable that came with the RealSense camera. The cable that came with your RealSense Camera is a high-quality USB cable that is capable of handling the power and bandwidth requirements of the camera.

     

    For more information, please refer to Table 3-46. Vision Processor D4 Board Power Requirements in the Intel RealSense D400 Datasheet.

    https://dev.intelrealsense.com/docs/intel-realsense-d400-series-product-family-datasheet

     

    Regards,

    Khaijian

    Intel RealSense Customer Support

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  • Ron Vis

    Thank you Khaijian for your response.

    Table 3-46 is for power supply requirements. My question was about High-speed differential input signaling
    levels data sensitivity (It's not mentioned in the datasheet)

    Thanks again

     

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  • Tanx Khaijian

    We've contacted the appropriate team for further action and we shall update you upon receiving their feedback. Your patience is greatly appreciated.

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  • Ron Vis

    Hello Khainjian,

    Is there an update to my question?

    Thank you,

    Ron

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  • Ron Vis

    Hello Khainjian,

    any updates on my question above? we having a BIG issue,

    The USB2.0 is failed enumeration every time the camera is connected.

    Thanks

    Ron 

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  • MartyX Grover
    • Edited

    Hi Ron, RealSense has 'spun off' from Intel as of July 11 2025 and become its own company, RealSense Inc. I will now assist you with your issue.

     

    RealSense cameras can be used with USB 2.0, as described at the reference below:

    https://realsenseai.com/stereo-depth/usb2-support-for-intel-realsense-technology/?q=%2Fusb2-support-for-intel-realsense-technology

     

    RealSense cameras can work well with most USB cables so long as they are high quality and do not require a special cable or knowledge of signal inputs.  They are 'plug and play', and the camera should be detected when it is plugged into a USB port.  In practice though, the USB ports of some computers will work better with RealSense cameras than other computers.  This can be because of the brand of USB controller chosen by the computer's manufacturer to handle the ports.

     

    An easy way to test whether the connection problem is related to a computer's USB controller is to plug the cameras into a USB hub device instead of directly into the computer's ports, as a hub will have its own separate USB controller for handling its ports that is likely of a different controller brand to the one on the computer.

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  • MartyX Grover
    • Edited

    May I also ask which computer or computing board you are attaching the camera to, please?  With some industrial computing boards and single-board computers that have a non-typical hardware and software configuration, for example, the camera may be better able to be detected if the RealSense SDK is built from source code using a method called libuvc backend.

    https://github.com/IntelRealSense/librealsense/blob/master/doc/libuvc_installation.md

     

    This method provides a pre-made build script called libuvc_installation.sh

    https://github.com/IntelRealSense/librealsense/blob/master/scripts/libuvc_installation.sh

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