m/a-com p7100 systems

I made an account just for this, but I've been lurking for a while. My XO has acquired a good deal of MA/COM P7100s, a far cry different from the AN/PRC 152s and 1523s we're equipped to program and fill. My JTNT doesn't have a 25 pin port, so I can't order a TQ3392 cable. The only cable I can...