Re: Apple IIe to PC Null-Modem How-to Question

["David Chiu" <none@nowhere.org>]

In a nut shell, a null modem cable has its TX and RX wires crossed (as opposed
to straight through.) It's the equivalent of cross-over Ethernet cable for
serial (RS232) It is generally used to transfer files between Apple IIs and
PCs.

Serial cards for the IIs usually have a DB25 female connector. A DB9 female on
a IIe is either the Mouse (if it's connected to a card in some way) or
Joystick (connector is soldered to the motherboard.)

DIN5 you hear about for the MACs (bleh) or the IIC+/IIGS.

I suppose you could get serial working with a floppy interface (with enough
hardware, software and time, anything is possible ;-) but unless you are
looking for a challenge and a lot of (IMO) unnecessary pain, you really don't
want to go that route.

Communication card could generically refer to a serial card, or a specific
Apple serial card (the predecessor of Super Serial Card.)

"rehm" <jagginess@yahoo.ca> wrote in message
945f66e3.0502101733.28039a8@posting.google.com">news:945f66e3.0502101733.28039a8@posting.google.com...
: Hi, I'm pretty new to trying out linking my AppleIIe to my PC.
: I still can't figure out what can a Null-Modem connection mean for me.
: The only thing I think is a serial port on my Apple IIe is male
: connector that has 9 pin. I'm also worried I might upset some people
: here but I've searched this over and have only seen 5-pin DIN talk.
: Can someone please clear this up for me? I'm not happy with ebay
: traders selling the SSC cards more than the machine's worth.. and am
: pretty familiar with some basic electronic terminology and soldering
: wires if I have to.
:
: Another question, can I make a null-modem link to the card (AppleIIe)
: where my DiskDrive connects to? I'm just dumbly assuming this is what
: people are referring to as a Communications Card. (Not the Super
: serial card I read up on often)
:
: jagg