On Mon, Mar 23, 2015 at 8:43 PM, Jim Toth <[email protected]> wrote: > John, you were right. I tried several null modem cables, and the only one > that worked with WP2DOS was one that I got from Club100 a long time ago. I > think Rick made it himself, so it's surely full null. > >
Actually Rick's cables were not "full null" They looped back DTR/DSR, and I think CTS/RTS. So they don't pass through the flow control signals at all they just "fake out" the laptop to think the signal is coming from the other end but really the laptop (WP2 in this case) is generating its own signal that it receives. This keeps the WP2 from getting stuck. For your purpose with WP2DOS (or LaddieAlpha) I think that's fine. For certain purpose, like HTERM which relies on genuine flow control being passed through, it wouldn't work. -- John.
