[access-uk] Re: Exceeding usb hub port
- From: "Tristram Llewellyn" <tris-l@xxxxxxxxxx>
- To: <access-uk@xxxxxxxxxxxxx>
- Date: Tue, 7 Feb 2006 10:00:53 -0000
You may be exceeding the 5v power of the USB bus, but it is probably more
likely that whilst the keyboard is being powered by the bus it is not supplying
any current to the attached ports to power the pen drive in order that bus
power is not exceeded. You will need to use one of the other ports on the
front or perhaps add a powered hub if you need a lost of connections that
require USB power.
Regards.
Tristram Llewellyn
Sight and Sound Technology
Technical Support
www.sightandsound.co.uk
----- Original Message -----
From: Justin R
To: access-uk@xxxxxxxxxxxxx
Sent: Monday, February 06, 2006 6:44 PM
Subject: [access-uk] Re: Exceeding usb hub port
Hi Martin,
I don't quite understand what you've said. I'll quote what I need
clarifying.
>I think maybe the pc is protecting your pen drive. the usb ports on the
keyboard are only meant for low >power aps such as mp3 players etc.
Does this mean that mp3 players are low power aps and pen drives and memory
card readers are high powered? I don't know much about all this as you can
tell.
>your drives is a high powerr item, and needs direct feed, rather than the
third party feed from your >keyboard.
Oh, i didn't understand that but, now I'm getting it. So, pen drives and
mem card readers normally don't like third party hubs? Where as low power
things do?
I'd love to do a google search to learn more about this but, hmmm... what
do I put in the search term.
Unless anyone posts on computer tech forums and can recommend a good one
for me to look at?
Thanks for your help martin. it's starting to make sense.
Justin
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