Null Modem Apple IIc DIN-5 to PC Dsub-9

[Freehold Fred]

I am involved in a project to transfer Apple IIc data files to his PC. We are down to a hardware issue of making a null modem, unless we come up with an Apple Imagewriter I printer cable. Here are the pin-outs on the IIc (5-pin DIN)and a Modem D-9

IIc..............................Modem

1 Handshake Out............4 DTR
2 Data Out....................3 TxD
3 Grnd..........................5 Grnd
4 Data In......................2 RxD
5 Handshake In..............6 DSR* (pin 1, DCD is used in some cases)

To make a NULL modem, do I cross 2-(Data Out) with 2-(RxD) and 4-(Data In) with 3-(TxD)? Do any of the others (handshaking) need to be switched also? From my research, the IIc does not do hardware handshaking very well.

Anyone still have any communications software for the Apple II? ProTerm, Zlink, Talk is Cheap, XMODEM?

[tonyd]

If things don't work out, let me know. I may still have the cable you need in a box upstairs (or maybe a box downstairs).
- tony d

[compusimple]

Might have xmodem but won't be home till 3/29.
Will check then.

Elliott

[Smokey]

I am involved in a project to transfer Apple IIc data files to his PC. We are down to a hardware issue of making a null modem, unless we come up with an Apple Imagewriter I printer cable. Here are the pin-outs on the IIc (5-pin DIN)and a Modem D-9

IIc..............................Modem

1 Handshake Out............4 DTR
2 Data Out....................3 TxD
3 Grnd..........................5 Grnd
4 Data In......................2 RxD
5 Handshake In..............6 DSR* (pin 1, DCD is used in some cases)

To make a NULL modem, do I cross 2-(Data Out) with 2-(RxD) and 4-(Data In) with 3-(TxD)? Do any of the others (handshaking) need to be switched also? From my research, the IIc does not do hardware handshaking very well.

Anyone still have any communications software for the Apple II? ProTerm, Zlink, Talk is Cheap, XMODEM?

If it doesn't do hardware handshaking very well then yea, only thing you need to do is cross the Rx and Tx wires. That should do it.

[Freehold Fred]

I have a Performa talking to the Apple IIc via the serial ports. I am attempting to transfer a machine language communication program from the Performa to the IIc. The IIc uses IN#2 to act as if it were a terminal, so the data is coming over as text. So far okay, but w/o some sort of flow control, I am getting overruns and not quite getting an accurate transfer. Any brain defoggers from the old farts and young nerds here? I don't want to type in the code!

My client is willing to purchase+shipping charges for a communications disk on 5-1/4" Apple IIc DOS 3.3. or ProDos media.

Are you home? Can you check? I can't do anything next week, so we have waited since November, what's a little more time --- just that my client is 86 years old :lol: :lol: :lol:


Might have xmodem but won't be home till 3/29.
Will check then.

Elliott

[compusimple]

Fred
I did check and can't find it but I know I once had it. Sorry

Elliott

[Terry Hanushek]

Fred

I'm not sure if this will help but I have located copies of the Apple DOS 3.3 System (2 disks) and DOS 3.3. Basics (1 disk) for the Apple II Plus. :hippie: As I recall, we never had a modem or did any communication with the Apple.

If you can use these disks, give me a shout. :phone:

Terry

P.S. I still have the Apple II Plus in my museum ... er closet.

[Freehold Fred]

Final Report:

Found 3 pieces of software (no hardware hoops to jump thru) that did the trick:

1) Found a PC program that reads 5-1/4" disks from legacy computers (Atari, Apple, PC, Amiga) and makes a disk image on a PC. Must have a dual floppy drive computer to do this with and must be done from DOS. Got both, of course.

2) Found an Apple emulator that 'boots' Appleworks in XP, lets me load the disk image, and 'print' a DIF file.

3) Found another program that lets me copy the DIF file out of the virtual disk image and onto my PC.

4) Loaded DIF directly into Excel and done!

After all that, the old geezer backed out of the 50+ disk, ~500 files, project!

Besides his Apple IIc was still working.

And so it goes ... <grrr>!