Not sure I understand this:
No such thing as a 25 pin RS232 Parallel port. Rs232 is a spefication for a single device to device serial and its SLOW compared to most other protocola, The 25 pin Rs232 port has been obsolete for over 15 years. A parallel port input is what is used on most cheap breakout boards. There are some USB and Ethernet BoB's but they need special drivers and software. Not sure what you are trying to do but if you are not using a computer to be the "controller" then I don't see the point of a Breakout card. You have to feed it parallel signals (not serial) and it simply "breask them out of the port to make them individually accessable. Most BoB have buffered lines for the input from the computer and buffered and /or optoisolated lines for the outputs back to the PC parallel port.but the pictures show a parallel port so I'm not sure what I'm getting. Either can be wrong (or both). It doesn't matter because I'm not going to run it with a computer. I also ordered a break out board w/ optoisolators and a parallel (RS232, 25 pin) I/O port.