on 06/10/2009 05:46 PM Diana Eichert wrote the following:
> You don't need to measure voltages, just get the pinout for
> both serial cables and build your cable. The only time
> I measure voltage is when I don't have the docs.
>
> I have a bag of RJ45 <-> DB9 and RJ45 <-> DB25 adapters.
> When I need to connect something via serial it's very
> straightforward. Look at the tech docs for both pieces of
> hardware and build your cable. A BOB ( BreakOutBox ) is
> also handy to have, but not needed.
>
> A quick search on Googley found
> http://www.pitt.edu/~bdgregg/Cable_Wireing.html
>
> Remember real hardware hackers eat serial for breakfast.
> :-)
>
> diana
>
>
Thanks Diana. I checked the pinout of the DB25-Male to DB9-Female, and
also that of the gender changer and they appear good as far as
continuity exists between the pins as shown on the site you mention. :-)
I also checked the continuity between the ends of the black serial cable
supplied by APC, and for the record, it is like so:
APC cable (940-0024D) pinout:
DB9 Female (PC side) <---> DB9 Male (UPS side)
pin 2 <------------------> pin 2
pin 3 <------------------> pin 1
pin 5 <------------------> pin 9
All other pins are not connected.
So, now I believe my problem is not hardware but software related.
I'll post any successful results from tests of other software.
