The Apple IIc uses a non-standard serial port. That is to say it's not a 9 pin or 25 pin arrangement. To get my transfers going, I had to make a custom cable. Basically a 5 pin DIN to DB-9 connector. I scrounged up an old, damaged keyboard for the 5pin DIN connector, the DB-9 adapter I picked up at radio shack for $2. Here are my notes: This creates a Null-Modem cable for use with a standard 9 Pin PC serial port and the circular 5 pin serial port on an Apple //c or Laser 128 Computer. PC 9-Pin Serial to Apple //c 5-Pin Serial --------------- ---------------------- Pin 6 - DSR Pin 1 - DTR Pin 2 - RD Pin 2 - TD Pin 5 - SGnd Pin 3 - SGnd Pin 3 - TD Pin 4 - RD Pin 4 - DTR Pin 5 - DSR For any other Apple II system, you need a super serial card which has a 25 pin adapter on it already. Just use a straight thru DB-25 Cable. A Null Crossover is not necessary. The SSC has a "null" mode built in. Just set the jumper block to "Terminal" instead of "Modem". You can also use a 9-Pin adapter on the PC side with no ill effect. DB 25 Pin assigments (PC) DB 25 Pin assignments (Apple SSC) ------------------------- --------------------------------- 1 -- 1 Frame Ground 2 TD 2 TD 3 RD 3 RD 4 RTS 4 RTS 5 CTS 5 CTS 6 DSR 6 DSR 7 SGnd 7 SGnd 8 DCD 8 DCD 19 -- 19 SCTS 20 DTR 20 DTR 22 RING 22 -- As pin 22 is unused on the Apple and pin 19 unused on the PC, these can be considered moot. All other DB-25 pins not specified are unused. -Intelligoth On Tue, 26 Sep 2000 00:11:36 GMT, "Don Casper" wrote: >I'm trying to connect an Apple IIc to my PC to do disk image xfers, through >a null modem cable. I've been having problems getting the two computers to >communicate and was wondering if someone else might of had this problem and >figured it out. > >Currently I have a IIc-Imagewriter I cable (din-5 to DB25) connected to the >modem port on the IIc, through a 25-9 adapter and into COM2 on my PC. I >follow the instructions with the adt program, and type IN#2 on the apple, >followed by '6b'. On the PC side I am not using any COM ports other >than COM1 for a mouse, and I am using Hyperterminal with the setting >described at http://home.swbell.net/rubywand/Csa2T1TCOM.html#025 > >I send a text file using the 'Send Text File' command under the Transfer >menu and I see the characters being typed on the PC screen, but nothing >happens on the IIc. > >Can anyone think of anything I can try to make this connection? Are there >dip switches or software settings that need to be set to activate the IIc >modem port? > >Thanks for any help you can give. >Don Casper > ------------------------------------------------------------- "For Color TV Viewing Only" - intelligoth@spamsuxx.telus.net Remove the spamsuxx to contact me