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null modem connection IIC / PC troubleshooting!



I have built a new cable DIN-5M  ---> DB9F consisting of only three wires:
'TX', 'RX' and 'ground' connected.  The pins used on DB9F is  #2,  #3 and
#5.

---->Win98:
When using the 'Hyperterminal' from Win98 I manage to do ASCII-text file
transfers to the IIC at baud rate 300 with 200 ms delay on each text-line.
In this way I've managed to upload the ADT-source to the IIc.

----> DOS-operation:
I followed your advice on using a true DOS-environment and tried to
reproduce the same ASCII transfer from  MSDOS 6.22 by issuing the commands
acc. to Rubywand FAQ:

>mode com1: 300,n,8,1
>type  adt.dump > com1

But the PC resonds with message:  "Cannot write to Com1:  Retry, Ignore
Fail?"

(I've got a regular modem on 'com2', and issuing the samme command-set to
this port, the modem flashes up and receives data normally)

----> ADT-operation:
I've tried to run the ADT 1.22 package, but cannot get any response from the
PC-side while sending "Directory,.Receive, Send".  The IIC -screen turns
black, or reports "Awaiting response from PC".  I've tried different speeds
1200,9600 etc. but  with no effect.

I have also hooked a second 'Apple IIC'  to check for potential hardware
error, but the same situation is observed on the unit.

----> Apple Oasis:
I have a registered copy of this package,  but have not tried the S-link
option yet.  Would this package do the same job for writing DSK-images to
floppy-disks?

As I understand this package runs under PRODOS, I used the 'Diskcopy 8.3+'
to revive a DOS33 disk.  May I use this programme to generate a
Prodos-system disk?