From: Gary Kratochvil Subject: Re: Apple //e to PC Null modem cable pinout Date: Monday, June 21, 1999 10:25 PM phoenyx wrote: > > > SSC side Modem side > > > 25-pin Dsub 25-pin Male Dsub > > > > > > 2 -------> 2 > > > 3 <------- 3 > > > 4 -------> 4 > > > 5 & 8 <--- 5 > > > 6 <------- 8 > > > 7 <------> 7 > > > 20 ------> 20 > Basically you are fooling the handshaking routines built into the compters. Most simple > programs > don't even use the handshake. For instance, ADT. > > On the cable from Rubywand. Yes, you are shorting those wires, It is easiest to hook 5 > to 8 > then 8 to 5 on the other connector. This cable does not fool the hardware handshake > routines > and is better for PC to Apple terminal programs and transfer protocals such as Zmodem. I see shorting 5 & 8 and connecting to 5 on the PC side but I don't see shorting 8 & 5 on the PC side. Is that your suggestion? Doesn't also then short 6 on the SSC side? Since I need to get down to 9 pins to get into my PC is there any difference in the two cables if I still need to use a 25 to 9 pin adaptor? > > RTS (7) --\ /-- RTS (4) > > CTS (8) --/ \-- CTS (5) > > > > CD (1) --\ /-- DSR (6) > > DSR (6) --+ +-- DTR (20) > > DTR (4) --/ \-- CD (8) If I understand this correctly I can connect directly from SSC 6 to PC 20. Then on the SSC side solder a jumper wire from 1 and 4 to 6 and on the PC side solder a jumper wire from 6 and 8 to 20? Thanks for your time! Gary