In article , Albert D. Kallal wrote: > "Ivan" wrote in message > news:v8b3cofjdjhu01@corp.supernews.com... > >> Greetings, >> >> I have an Apple 2e (enhanced) with an apple Super Serial Card II >> (670-8020B) and a null modem cable. I downloaded ADT and followed >> the instructions but I cannot get the PCs (tried 2 different ones) >> and the Apple to talk. I get garbage in the hyperterm window when >> I type on the Apple and nothing on the Apple when I type on the PC. >> I can't get them ADT.dmp file over to the Apple. >> >> I've tried different baud rates and such but it's always garbage and >> only in one direction, nothing ever appears on the Apple screen. I >> suspect that I have a defective SSC-2 but I only have the one to use. >> Is there something I am doing wrong or has anyone else seen this >> problem? Any help is much appreciated, thanks >> >> Ivan > > You sure you serial cable is ok? > > did you try flipping jumper cube thing on the serial card? > > It has been several years since I have dropped by this newsgroup. Or in fact > pulled out my old appleII with a serial card. However, it did work for me. > > You might also want to check the serial port settings on the windows side in > the control panel. There's no point in checking the port settings on the Windows side in the control panel (if he runs Windows; he might be running plain MS-DOS since he only says "PC"): the PC side of ADT sets its own port speed/etc instead of just using whatever has been set by the OS. A good way to troubleshoot your serial connection is to put away ADR for awhile and instead start some terminal program on each side. On the Apple II there should be one simple dumb terminal program built into the ROM's of the serial card: it's activated by (assuming your serial card is in slot 2) doing IN#2 followed by typing some control characters (on the older Apple Comm. Card it was Ctrl-A Cltr-F; you'll have to consult a Super Serial Card manual to figure out how to do this on the Super Serial Card). Or, if you have some comm program for your Apple II, such as ASCII Express or ZTerm (the latter runs under Apple Softcard CP/M), you could use that. On the PC side you could use SuperTerminal if you're running Windoze. If you're running plain MS-DOS you could use e.g. MS-Kermit (which is free and has a "dumb terminal mode") or ProComm or Telix (commercial software with shareware versions you could try for a limited time; they should be available on SimTel). You could start, on the PC and on the Apple II one at a time, making it communicate with a (Hayes comatible) modem: type "AT" followed by (or ) on the computer's terminal program and the modem should respond with "OK". When that works, connect the two computers to one another with a null modem cable; if done properly and if both sides have set their serial ports to the same speed and parity, whatever you type on one of the computers should appear on the screen of the other computer. You might have to pay some attention to the modem signals RTS, CTS, DSR and DTR: one, or both, computers may require these signals to work (that depends on how the termimal programs). The easiest way os to, on either side, "cheat" by doing a local connection from DSR to DTR and from RTS to CTS. But if you want to do it properly, the DSR on one side shoyld be connected to the DTR on the other side, and the RTS on one side should be connected to the CTS on the other side, and this should be done in both directions. But then the cable must have 7 instead of 3 wires. You could also connect RTS to not just CTS but to DCD as well. When you get this to work, your ADT should work as well. Yep, this is the step-by-step method you must use in order to successfully troubleshoot a situation like this. And this is the way I proceeded when I modified the Apple II side of ADT to work on the older Apple II Communications Card: my old Apple II has no Super Serial Card, thus in my case I had no working ADT but wanted to make it work. So the first question was: did my Comm. Card still work? (if it didn't it was no use tinkering with ADT). To figure out if it worked and if my cable could connect the Apple II and the PC, I proceeded in the way I described above: on the Apple II I used ASCII Express and on the PC I used Telix as terminal programs. Some more info about RS-232 and null modem cables follows: Definition: RS-232 9-pin 25-pin Description DCD --------- 1 ---------- 8 -------- Data Carrier Detect Rx --------- 2 ---------- 3 -------- Receive data Tx --------- 3 ---------- 2 -------- Transmit data DTR --------- 4 ---------- 20 -------- Data Terminal Ready GND --------- 5 ---------- 7 -------- Ground DSR --------- 6 ---------- 6 -------- Data Set Ready ("Data Set" = modem) RTS --------- 7 ---------- 4 -------- Request To Send CTS --------- 8 ---------- 5 -------- Clear To Send RI --------- 9 ---------- 22 -------- Ring Indicator Description: DCD -- Modem raises this high when it detects a data carrier Rx -- Computer receives data from modem Tx -- Computer send data to modem DTR -- Computer raises this high when ready to receive GND -- Common signal ground DSR -- Modem raises this high when ready to receive RTS -- Computer raises this high when it wants to send (useful for half duplex) CTS -- Modem raises this high when it's ready to receive RI -- Modem raises this high when a "ring" signal arrives at phone line Full Null Modem cable (RI need not be connected): GND -------- GND Rx <------- Tx Tx -------> Rx RTS -------> CTS,DCD DCD,CTS <------- RTS DTR -------> DSR DSR <------- DTR Minimal Null Modem cable -- works sometimes, depending on the software: GND -------- GND Rx <------- Tx Tx -------> Rx Another simple Null Modem cable (on each side, connect RTS with CTS+DCD and also connect DSR with DTR). Usually works but fails to detect when the other side has been disconnected: GND -------- GND Rx <------- Tx Tx -------> Rx RTS \ / CTS,DCD DCD,CTS / \ RTS DTR \ / DSR DSR / \ DTR -- ---------------------------------------------------------------- Paul Schlyter, Swedish Amateur Astronomer's Society (SAAF) Grev Turegatan 40, S-114 38 Stockholm, SWEDEN e-mail: pausch at saaf dot se WWW: http://hem.passagen.se/pausch/index.html http://home.tiscali.se/~pausch/