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OPUS & ITPS Success 2x 3.5" drives

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  • OPUS & ITPS Success 2x 3.5" drives

    OK, In my new system I was having trouble driving 2x 3.5" drives from an OPUS. Basically the second drive was a USB 2 caddy with a 200 GB disk installed. The internal disk was a low profile 40GB HD.

    I could never see the second drive after powering the PC up, only when I repowered the USB caddy afterwards. So here is my solution.

    Use the +12v of the OPUS as the acc signal for an ITPS, the ITPS will wait 5 seconds before powering up the USB caddy. The +12v of the USB 2 caddy is powered directly from the ITPS which is fed from the battery. This way the caddy is controlled by the power sequencing of the OPUS/ITPS combination.

    Well it works for me any how....
    Craig
    Audi S8 supercar
    Modded Xbox 400GB HD
    Rear 7" screen & navplus

    Toyota Hiace Van
    Shuttle PIII 866 256Mb 10GB OPUS powered
    MediaCar & Mappoint 2004
    Custom fit 7" TFT VGA TSK
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