I've hunted down, ordered, and actually ohmed-out a few serial cables to find some actual manufacturer and part numbers for some cables that are good for PC-to-M100 (and 102, 200, and even 600), all in one piece, with no null-modem or gender-changer adapters needed, and with full handshaking so they even work for hardware flow control, with no wondering if the wiring is right. (And some others that are good in all the same ways, except no hardware flow control)
http://tandy.wiki/Model_100_102_200_600_Serial_Cable I have a couple more cables still on the way in, but now I have verified at least 3 with full proper handshaking by having them in my hands and actually mapping out the connections with a meter. I'm still adding to the page. I'll put up the actual wiring for each cable with notes about each one's quirks. -- bkw
