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Re: Lucent unveils wireless LAN USB client

From: Doug Sutherland <>
Date: Thu, 1 Feb 2001 18:16:51 -0500

Cyborg Unit Matt wrote:

> I haven't gotten it yet, but from the PDF's it shows the daughter board 
> is as being small, in fact only big enough to hold the needed connectors.
> It is connected to the main board with a ribbon cable

Okay, that's basically the same as the "connector board" that my old CardPC
system used with the MightyMite carrier. If that daughter board is just a
header expansion (ie no real circuitry), then it should be trivial to ditch
the daughter board altogether and make custom cable that attach directly to
the headers on the PC-2553. The cables for PS/2, VGA, and serial ports will
be very easy. The cables for ethernet and audio will be a bit harder but 
should also be doable. I can probably help you do that when you're in the 
bay area in March.

This PC-2553 sounds like a decent configuration, even with a PC/104 PCMCIA 
module plugged in. Assuming that the PC-2553 is no fatter than PCM-5822 and 
has a PC/104 female socket, when mated with a PCMCIA module it would be 
approx 4 x 4 x 1.5 inches. That's pretty good for a multimedia setup. If a 
good way to separate the CPU board from the PCMCIA card can be found, it 
would be very nice indeed. I'll have to check out the PC/104 expansion 
cables from Ampro (thanks Charles) to see what they look like and how bulky 
they appear. Six inch expansion might now be so bad (in fact it might be 
perfect) for mating two 4x4 inch modules.  

> I probably fall into #2 right now, but I've heard others (Doug mostly :)
> wanting for an easily hackable board to get rid of those big ugly connectors.

Standard connectors are evil for wearables. They are big and they break and 
they are often hard to insert and remove. It's not hard to make custom 
cables and connectors if you have the manufacturer pinouts, it's just tedious
and takes time and patience. 

> This may be it.. I'll know more later this month...

How much $ for the PC-2553 sans daughter board?

  -- Doug

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  Grow your own Wearables: http://wearables.los-gatos.net
 What I'd like is to have you call me and my jacket answers
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