Re: Optiplex 170L - Non standard COM port?

"Christopher Muto" <muto@xxxxxxxxxxxxxxxx> wrote in message
news:VWOPe.74$LK.66@xxxxxxxxxxx
>i wonder if there was also a modem in the system and that was perhaps the
>source of the conflict. com1/3 and 2/4 each share a single irq and can not
>be in use at the same time (ie com3 can't be used if com1 is in use). some
>modem driver software (if installed) have monitor utilities that keep the
>modem port open and therefore disable the coresponding com port that shares
>its irq.
>
> i have found that usb to serial port converters work quite reliably. i
> had to use many of them to enable legacy free laptops (no serial ports) to
> syncronize with the older generation blackberries, palms, and celleur
> phones. the belkin made ones never failed.
>


No modem... and no indication of any IRQ conflict. interesting thing
about the USP-Serial adapter is that I couldn't get the device to work with
the adapter set to COM 2 or 3 but it worked fine at COM 1.

--

Rob




.

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