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Thread: Power USB devices

  1. #11
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    Okay, so what exactly is the need to power the hub??? Mine plugs right into my laptop and I thought it got power from the laptop it's self.

  2. #12
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    Many USB hubs allow "non-bus power" which is essentially a barrel plug on the side of the hub that accepts an external +5V supply. There's a picture of a powered hub HERE (bottom of page). If you have power hungry USB devices (ie Audigy USB sound card) you can provide external power to the hub instead of loading down your PC's PSU.
    MikeH

  3. #13
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    I see. Mine does have a DC jack. It came with a DC jack -> USB connector. I thought that cable was to provide power to USB devices without wasting a USB port. How am I supposed to use that cable. You think that jack is to help power the devices I plug into the ports? I should connect 5V to that jack?

  4. #14
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    Quote Originally Posted by spdyscotty
    I see. Mine does have a DC jack. It came with a DC jack -> USB connector. I thought that cable was to provide power to USB devices without wasting a USB port. How am I supposed to use that cable. You think that jack is to help power the devices I plug into the ports? I should connect 5V to that jack?

    Well, it would depend if that DC Jack--> USB connectorhas a "USB Port", or a "USB plug." If it is a plug, it is used to power the USB Hub with a second source of power. However, it still is limited by the total power available on the USB bus, it will double the availabel power to the hub though. This is most likely what it is.

    If it is a USB Port, then I have no idea what it could be used for. However, how could it be used to "Usb devices without wasting a USB port". Where would the power be coming from if not from the USB ports on the computer?

    I know I am a stickler for this, but you really should be as specific and detailed as possible when posting. The HUB probably has a "DC Jack" while the cable has a "DC Plug". Plugs, Jacks, Ports all mean different things.

    I won't even get into Female and Male connectors, that is a different conversation.

    Michael
    ...I love the French language...especially to curse with...Nom de Dieu de putain de bordel de merde de saloperies de connards d'enculés de ta mère. You see, it's like wiping your *** with silk, I love it.

  5. #15
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    I couldn't be more specific as that is my question. I don not know if it is intended to supply 5V or inteded to accept 5V. Also this device slides into my PCMCIA slot and perhpase it is technically a USB Bus (not a hub). I had to use it b/c my laptop did not have a USB 2.0 port on it.

  6. #16
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    Quote Originally Posted by spdyscotty
    I couldn't be more specific as that is my question. I don not know if it is intended to supply 5V or inteded to accept 5V. Also this device slides into my PCMCIA slot and perhpase it is technically a USB Bus (not a hub). I had to use it b/c my laptop did not have a USB 2.0 port on it.
    HUH

    While you may have question, you MUST give us the proper information as you have it, and you must be precise and as specific as possible.

    What is on the "DC plug-->USB connector"? Is that a PLUG or a PORT. A plug PLUGS into a PORT. The PORT would be what is in the computer, or PCI Card, or perhaps, in your case, a PCMCIA Card. A plug is what is on the end of a cable that connects to some sort of USB device. DO you now understand what I am talking about.

    The PCMCIA USB card is closer to a PCI USB card, then to a hub.

    Next, that port (See, I am being specific) most likely accepts 5 volts to help power USB devices because of the limitation of the PCMCIA bus. I HIGHLY DOUBT that port is used to power OTHER devices, and I am fairly confident that it accepts 5 volts. As such, the DC Plug--> USB connector you have spoken about is most likely a DC Plug-->USB Plug. That USB plug would connect to a computers USB port, assuming you had one on your laptop, to help power the USB devices connected to the PCMCIA card.

    Now, if this is a PCMCIA card, how are you connecting it to your carputer.

    Michael
    ...I love the French language...especially to curse with...Nom de Dieu de putain de bordel de merde de saloperies de connards d'enculés de ta mère. You see, it's like wiping your *** with silk, I love it.

  7. #17
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    I am using a laptop as my carputer. It is a DC port, not a plug. I called it a jack, of course its not a plug. Anyways, I don't want your help if you are only going to be hot-headed about it.

  8. #18
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    Quote Originally Posted by spdyscotty
    I am using a laptop as my carputer. It is a DC port, not a plug. I called it a jack, of course its not a plug. Anyways, I don't want your help if you are only going to be hot-headed about it.
    Mine does have a DC jack. It came with a DC jack -> USB connector.
    It's impossible to give good advice, if you don't ask the question properly. I have responded to this, and another post of yours, giving information. You seem to not want to listen to what people tell you.

    First you say the PCMCIA card has a DC Jack. Then, you say you have a DC jack--> USB connector. Yet, you still have not stated if it is a USB Plug or Port. I have been very specific about my statements and questions, it seems you can't even understand that. I was not asking about the DC jack, I was asking USB portion of the " DC jack -> USB connector".

    Trust me, if you don't want my help, then I will not respond. But, don't come into the sandbox looking for help over and over again, asking question using words that don't make any sense, and worse yet, not listen to the answers.

    Michael
    ...I love the French language...especially to curse with...Nom de Dieu de putain de bordel de merde de saloperies de connards d'enculés de ta mère. You see, it's like wiping your *** with silk, I love it.

  9. #19
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    It's a USB plug. Also I posted to an open forum. I was looking for multiple users advice. I appreciate help when help is given, but it seems everytime I post you attack my threads with "this doesn't make sense". If you don't get it, give someone else a chance. Perhapse they will.

  10. #20
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    Quote Originally Posted by spdyscotty
    It's a USB plug. Also I posted to an open forum. I was looking for multiple users advice. I appreciate help when help is given, but it seems everytime I post you attack my threads with "this doesn't make sense". If you don't get it, give someone else a chance. Perhapse they will.
    Your problem is that you don't want to listen to anyone.

    You have 3 posts asking about the same thing.

    Power USB devicesspdyscotty Today 12:58 AM

    Where to buy electrical components?? 07-12-2005 03:00 AM

    1500mA 5V Regulator Schematic ( 1 2 ) 07-11-2005 06:17 AM

    I posted in the 1500 one, quite nicely, about how to do it. I even referenced you to a schematic. Not only that, a bunch of other people helped out as well.

    Then, when you decided you were gonna buy the parts and make a switcher, something which I personally expressed as being harder, and requiring more parts, I provided you with 2 sources, while expressing my concern.

    Now, you've decided to ask a third question about the same subject, Powering your USB hub. How many answers to the same question do you need. Not only that, how many Threads do you have to start asking how to power the Hub. Are you finally gonna listen to someone about this, or just start a new thread asking about powering your USB hub again?

    Michael
    ...I love the French language...especially to curse with...Nom de Dieu de putain de bordel de merde de saloperies de connards d'enculés de ta mère. You see, it's like wiping your *** with silk, I love it.

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