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Thread: M2-ATX Switched ignition wire?

  1. #1
    Variable Bitrate DaveB's Avatar
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    M2-ATX Switched ignition wire?

    Does anyone KNOW FOR CERTAIN if the switched ignition wire on the M2-ATX is for signaling only, and that the constant 12 volt wire actually carries all of the power?
    8" Lilli TS
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  2. #2
    Constant Bitrate RawsonDR's Avatar
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    I'd also like to know.

  3. #3
    Variable Bitrate DaveB's Avatar
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    Bump.

    Come on guys....someone must know the answer!

    I'm wiring right now and I need to know the answer to this question so that I know how many amps to plan for on the switched ignition wire. I have 10 guage from the battery for constant 12 volt. If the switched ignition is just for signaling, then it doesn't matter how big the wire for it is or how many amps it will carry. Heck, I could tie in to the lead on one of the cigarette lighters that is only hot when the key is on. But I can't do that if the M2 might take as much as 15 amps on the switched ignition lead.
    8" Lilli TS
    MB896F Mini-ITX MB
    2GHZ Dothan 533MHz FSB CPU
    1GB SDRAM DDR2 533
    Seagate 300GB SATA150 HD
    ENGENIUS WiFi MINI-PCI CARD 802.11A B 400MW OUT
    Pioneer Slot Load SLIM DVDRW
    Bluetooth V2 USB 2 Dongle
    3COM BKP Cam

  4. #4
    VENDOR - ITuner/MiniBox
    Join Date
    Nov 2003
    Posts
    112
    The switched 12V wire is just a sensor. It ends up in the microcontroller, draws only 1mA.

    -Andrei

    Quote Originally Posted by DaveB
    Bump.

    Come on guys....someone must know the answer!

    I'm wiring right now and I need to know the answer to this question so that I know how many amps to plan for on the switched ignition wire. I have 10 guage from the battery for constant 12 volt. If the switched ignition is just for signaling, then it doesn't matter how big the wire for it is or how many amps it will carry. Heck, I could tie in to the lead on one of the cigarette lighters that is only hot when the key is on. But I can't do that if the M2 might take as much as 15 amps on the switched ignition lead.

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