On Wed, 10 Jun 2009 08:46:06 -0600 (MDT), Diana Eichert <deich...@wrench.com> wrote: > 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. > :-) >
APC uses different cabling for different UPS series. No supprises here.... Check out: http://www.nullmodem.com/ups.htm I got my Smartups to work ok after making my own cable. -- Per
