Gustav:
The answer is that nothing comes back when I do this under DOS, just the
prompt. A buddy of mine who was very good with serial ports under DOS and
Windows said that this is exactly the state I'm looking for. He said that
if it reports anything, it's usually a misconfiguration. The first time
through configuring the two COM ports, I was getting error messages back.
Now, when I echo AT to COM 1, I do hear the internal click. I don't have
any other machines or OSes to be able to try the modem on, but it was
working before when I had Windows installed, with no problems. I loved
the performance.
I looked at the APC UPS, it's one of the Smart UPS, but I didn't see any
dip switches. Maybe I need to look elsewhere on the unit, or there is
something internal that needs to be set. I'm sure I can hunt around for
the manuals, or go to their web site to start, but I wanted to work from
the machine back to test everything on the machine first before talking to
APC, if they will offer any help to me at all.
BTW, I did swap the cable that comes with the unit, as I had another lying
around.
I have minicom on my machine now. How would I test to make sure that the
modem is working properly? I should be able to start up minicom with the
-s option, and then configure it, correct? I should then be able to type
AT commands in the window and get a response back from the modem, right?
- Mike
On Fri, 4 Feb 2000, Gustav Schaffter wrote:
> Michael,
>
> When you say, "I get the prompt back", does the APC on COM2 actually
> *tell* you something? If so, what?
>
> Do you have any old external modem laying around? Even a 2400bps or
> slower will do.
>
> If so, connect it to ttys1 (Yes, COM2) and use minicom to talk to it.
> Your 'AT' commnad should return 'OK'. So, you have contact with the
> outside world through ttys1.
>
> Some (most?) APC units need to have the DIP switches correctly set to be
> able to talk to a PowerChute software. (Read the APC manuals.) Have you
> been able to run PowerChute to this unit under another OS?
>
>
> Regards
> Gustav
>
>
> "Michael J. McGillick" wrote:
> >
> > Evening:
> >
> > I'm working on trying to get the APC Powerchute software to work on my
> > Linux box. The first thing I did was go in and check the BIOS settings
> > for my machine. I have COM 1 disabled, because I have an internal U.S.
> > Robotics Courier V.Everything installed. Com 2 is configured and has the
> > normal ioports associated with it (I believe this is 2F8 or something like
> > that). I also booted to a DOS disk, adn tried from the command line the
> > following 2 commands:
> >
> > echo "AT" > com1
> > echo "AT" > com2
> >
> > In both cases, I get the prompt back, which tells me that the machine is
> > recognizing both ports and is able to talk to them.
> >
> > I then booted my machine into Linux, and downloaded and installed the
> > latest powerchute rpm from APC's site. It installed just fine, and I
> > followed the directions to run the configuration script. I am able to
> > answer everything in the installation, and when it asks where the UPS is
> > connected to, I select /dev/ttyS1 (COM2 I believe) because this is where
> > the cable is connected to on the computer.
> >
> > When the script finishes, it keeps telling me that /dev/ttyS1 does not
> > appear to be a valid tty. What am I doing wrong? Where or what should I
> > be looking at to try and resolve this issue?
> >
> > - Mike
> >
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