Gregory J. Feig wrote:
> On Mon, 19 Feb 2001 13:20:10 +0100, Michael Polak wrote:
>
> ---------snip------
>
>
>
>> Laplink is probably crossed cable:
>
>
>> ______ _____
>> PC \/ PC
>> ______/\_____
>
>
> YES...Laplink for Serial Connection IS crossed cable (must be, just
> think about it....<g g g>)
Yes, this is what I did (thought about it), and though it
should work. I just wonder why I was not able to connect
from one terminal to another,using HP-LX <-> PC serial cable
(NULL modem, obviously). Both parties were connected using 9600
bps, and connection physicaly obviously works (interlnk/intersvr
in DOS...)
>> Now, is the same cable used to connect modems to PC ?
>
>
> NO...PC to Modem is "straight" cable....it was originally designed
> that way.
I was thinking this too.
>> If no, my second cable would probably have to be crossed
>> again, because cell phone is designed to behave the same
>> way as modem, so the cable will be probably also the same...
>
>
> YES....cell phone is designed to look (from the PC) like a modem
> connected there.
Yes, so if I want to extend null-modem cable (HP-LX <->
Cannon 9pin) by adapter to connect to cell phone, I need
another null-modem-like crossed cable, Cannon <-> cell phones
(cell phones are unfortunately too small to be shipped with
serial Cannon connectors ... or maybe manufacturers don't
want them to be that much compatible... :-(
> If you have an Internal Modem (as you said you did in previous post)
> ...then you need to go out to a Serial Port to connect to the cell
> phone - treating the cell phone as if it was a modem - and this
> will probably mean that you will need to disable/remove the Internal
> Modem before you can do that.
There is no internal modem in HP-LX - HP-LX is tiny palmtop.
I have got internal modem in my DOS box dedicated to
Arachne development....
