Steve, I have done the M100 <---> PC COM1 (sniffer program) PC COM2 <---> TPDD2 and just used regular cables for swapping the signals. I did have all lines wired including RTS/CTS DTR/DSR. I used a USB to serial adapter on the PC which had 2 serial and 1 parallel ports. That may have been more forgiving of signal levels than a built in serial port on the PC.
Kurt On Sat, Jan 9, 2021, at 6:24 AM, Stephen Adolph wrote: > Question for the crowd, > > Is there any issue with the signal levels on the TPDD not being truly RS-232, > and so it isn't able to signal on the line to the right levels and hence > cannot connect to a PC properly? > > What I am trying to do, since VirtualT seems to be unable to receive any data > (still can't get that to work), I've reverted to this > > M100 <------> PC COM1 (sniffer program) PC COM2 <------> TPDD > > I have the M100 <---> COM1 working > > I have COM2 <-----> NADSbox working > > But I cannot get COM2 <-----> TPDD working! > > > I have a feeling it is the non-RS-232 signal levels of the TPDD. > > thx > Steve
