This is a very simple project that lets you change a 9 pin female serial cable/plug into a male plug. This is useful when you need a sex change to connect. This actually happens to some of us. I wire mine for just 3 pins, but if you need more just wire it up. If this description and the pictures do not make this clear, then you do not need this device.
Step 1: Materials
2 9 pin male connectors ( mine are all salvage )
2 spacers, metal or plastic tubes see picture
2 bolts just long enough to hold the connectors together
Electrical tape or hot glue gun for insulation