Path: utzoo!attcan!uunet!tut.cis.ohio-state.edu!rutgers!rochester!cornell!batcomputer!pwong
From: pwong@batcomputer.tn.cornell.edu (Patrick Wong)
Newsgroups: comp.sys.laptops
Subject: Another T1000SE hack ?
Keywords: T1000SE,serial ports,COM1,COM2
Message-ID: <10506@batcomputer.tn.cornell.edu>
Date: 4 Jul 90 18:03:26 GMT
Distribution: comp
Organization: Theory Center, Cornell U., Ithaca NY
Lines: 37

Hi, netters:

I enjoy very much reading the recent postings about the possibility of
soldering 1Mb of ram to the machine and the info on a $395 2Mb ramcard
clone (By the way, to those who bought that third party ramcard: do you
guys find any hardware compatibility problem other than the mentioned
modem power off problem using pop-up menu procedure ?)

Lately, I have been complaining to myself about the fact that I always
have to go through plugging and unplugging of serial devices as I
change my computing needs (I use an external modem or a mouse).  Although
I do not have software that uses both at the same time, but I really
hate swapping cables.  One obvious solution is to get a A/B switch box.
But that only solves half of the problem because 2 external devices still
cannot co-exist.

Then today as I causually go thru the manual, I get an idea.  T1000SE
can actually have COM1 and COM2 functional at the same! (like in the
case of having an internal modem at COM1 and a mouse at COM2).
Now, since I only have an external modem, I am now thinking of
using the modem connector inside the machine (well, actually it is not
that inside, it is in the modem slot which is accessible by unscrewing
two screws) and connect it with my ext. modem !

Now questions: 1. Where can I find a connector that will connect to
                  the one in the modem slot ?
               2. How can I find out the pin-out info for that connector?

A word of caution: I think some of the pins at that connector are actually
power lines to supply power to an internal modem, and ON/OFF switch
lines for the modem.  I should not mess with these several pins.
I just need to know the usual modem signal lines and also somehow
fool the machine into thinking there is an internal modem.

Any comment ?

Patrick Wong   (pcw@squid.graphics.cornell.edu)