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  • David (PassMark)
    started a topic USB short circuit tester (USB SOS)

    USB short circuit tester (USB SOS)

    We have a new product in development: A USB short circuit tester.

    Cheap, near indestructible device to test for killer USB ports.

    Protect your expensive gear from ports with over voltage, shorted data lines, etc..

    Green = Good.
    No lights = Bad
    Red = Bad


    USB Short Circuit tester pass

    USB Short Circuit tester Fail

    We are calling it USB S.O.S.
    S = Shorts Circuits
    O = Over voltage
    S = Sensor

    Should be available around the end of Oct 2018.

  • David (PassMark)
    replied
    Active protection on the host ports isn't something we have looked too deeply into. My understanding however is that some ports will shut down when overloaded. If the port is shut down then it will show up as a fail (no green light) with our USB SOS tester.

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  • BillyWood
    replied
    if your usb tester pass the test but the port still having issues then yo should try power-cycling the computer? I believe some motherboards use active protection on the USB ports that needs to be reset.

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  • David (PassMark)
    replied
    Stock of USB short circuit tester has now arrived from the factory and we are ready to ship them out.

    USB SOS short circuit and over voltage tester


    Leave a comment:


  • David (PassMark)
    replied
    Product page is now up for the USB Short Circuit Tester
    Part number: PM119

    Leave a comment:


  • David (PassMark)
    replied

    Type of faults that can be detected are,

    Over voltage or under voltage on VBUS
    Short circuit between VBUS and any of the data lines
    Invalid voltage on data lines
    No voltage on the port


    Detailed specs are,

    Green Pass LED turns on when:
    3.85V < VBUS < 5.5V
    D+ & D- < 3.9V
    SSRX+ & SSRX- & SSTX+ & SSRX- < 1.5V

    VBUS Red LED turns on if:
    5.5V < VBUS < 7.75V

    D+ or D- Red LED turns on if:
    V > 3.9V

    SSRX+ or SSRX- or SSTX+ or SSRX- Red LED turns on if:
    V > 1.5V

    Leave a comment:

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