Ed Durrant wrote:

> luth-astro{at}earthlink.net wrote:
>> What is X-jack on an IBM pcmcia modem?  Something good?  Something bad?
> 
> X-Jack AFAIK is a socket for the RJ11 (or RJ12) cable that connects
> vertically into an extention of the end of the card. The advantage being
> that the card doesn't have to take up two slot spaces just to allow the
> normal phone cable to be inserted. The other option is a special dongle
> cable on some PCMCIA modem cards and that ALWAYS gets lost !
> 
> So in short X-Jack is a good thing, purely mechanical, you don't have to
> worry about OS/2 compatibility or anything.

I bought an IBM X-jack modem/ethernet adapter several years ago.  It 
seems to me as if you could plug in EITHER a telephone RJ11 OR an 
ethernet RJ45.  It had some sort of "guide" that would hold the RJ11 in 
place, or move out of the way for the RJ45.  Obviously, there was 
"intelligence" built into it that differentiated between the two types.

The X-jack was convienent in that you weren't screwed if you forgot the 
dongle, but it was a little more awkward, somewhat more difficult to 
plug and unplug and seemed rather fragile.  Of course, with dongles, 
there's always the stupid problem of forgetting the dongle and leaving 
it in a hotel room.  =]

Craig.



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