OT: USB adapters for PCMCIA slots

[scirocco16vr32 at gmail.com (Chris Bennett)]

I definately trust Allyn on this.  He is the Jedi Master I am but a
humble padawan.

I guess the USB PCMCIA card I have is cheap.  I want to know why I
don't get any balloons!!!  Bastages.

What is the difference in voltages PCMCIA type 2 or 3?  I have an OLD
Libretto that will take two cards or a single "fattie" device like my
"hardcard" and my Xircom 56K/Ethernet Card.  I have run two devices on
that one (Pentium Class Motherboard) one being a USB 2.0 card, and the
other being wireless 802.11b.

On 4/1/07, Allyn <amalventano1@tds.net> wrote:
> > Ok it has been my experience that you only have to use the
> > auxillery power supply for SOME devices.  I believe to meet
> > the IEEE standard it has to be something like 5v 500mh
> > supplied from EACH port.  You add the PS to suppliment that
> > for something that draws MORE than 500mh.
>
> PCMCIA cards run at either 3.3V or 5V, and the current requirements do not usually allow a USB adapter card to power itself and its
> ports without risking damage to the laptop PCMCIA bus.
>
> Additionally, many USB ports will auto-detect a >500mA condition and power down the port, along with sending a 'overload detected'
> error to the system (shows up on XP as a balloon warning).
>
> Al
>
>


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