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Question about the anatomy of a OTG cable

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  1. AlkiDweller

    AlkiDweller Well-Known Member

    After a little research I've come to the conclusion that the part of the OTG cable that allows it to work is in the micro connector. Is that accurate?

    If so, can I assume that the cable behind the connector is laid out like a conventional USB cable?

    My objective is to cut an OTG cable in half and splice the micro connecter side to the cable of a standard keyboard, eliminating the need for the adapter.

  2. Davdi

    Davdi Well-Known Member Contributor

  3. Harry2

    Harry2 Well-Known Member

    The jumped pins 4&5 in the cable's mircoUSB connector forces a phone/tablet with OTG ability in the USB host mode.

  4. AlkiDweller

    AlkiDweller Well-Known Member

    I saw that, which is one of the things that prompted my question.

    I already have a couple of OTG adapter cables and plenty of keyboards laying around. I just want to eliminate the adapter part and end up with a standard keyboard with a micro USB plug.

    It looks like the part that makes it an OTG cable is in the micro plug so if I just connected red to red, blue to blue, green to green and black to black it should work. The jumper is already in the micro plug.

    Or am I missing the obvious, which I usually do.
  5. Harry2

    Harry2 Well-Known Member

    Should work ... it's just this pin 4&5 jumper that made a microUSB cable to a microUSB OTG cable :)

  6. AlkiDweller

    AlkiDweller Well-Known Member


    But I can see what's going to happen. I'll get the outer insulation off the wires and be staring at 8 different colors. :eek:
  7. Harry2

    Harry2 Well-Known Member

    For this cases :eek: .... there are ohmmeters :D


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