The answer to your question may not be as simple as the request implies. It depends on the type of serial connection you are planning to use. There are two kinds. A straight through serial cable, often defined as a printer cable, and a null modem cable. I have not used the printer cable method so I will give you the setup that I use. This works for both the IIe and the GS with an SSC and is currently in use on my GS in slot 2. My cable is a home made serial null modem job. It works very well and eliminates the need for an actual null modem adapter and any other connection adapters which may be needed. Basic components, 25 pin male serial connector for the SSC 9 pin female connector for the PC shielded wire, 8 strands (for all possible connections) For those of you who actually like this sort of challenge, the parts can be found at your local Radio Shack. They have both the solder type of connections and the crimp on type. For ease of use, I suggest the crimp on leads. They are just as effective and much easier to use. Note: I use an old serial connector cable from an external modem which had failed. (So being a pack rat actually paid off!) It has a nine pin connector which has become the standard for most modern PC style computers. However, many systems still have the 25 pin connector for com2. In this case, you will need an adapter or swap the 9 pin serial connector, mentioned in the parts list, for a 25 pin version. The FAQ has the pin connections for this model also. In fact, this is the adapter used in many listings on this subject. If you decide to go this route, use a circuit tester to verify which pins connect to which wires. The cable setup MUST be correct and for the SSC, you will need the hardware handshaking connected. I don't have the actual pin numbering or connection listings handy but if you check Rubywand's FAQ site you will find all the info you need, plus a lot of other valuable and interesting info. http://home.swbell.net/rubywand/ For the SSC, some settings apply to either cable method. If you have a IIe or GS with the SSC (and some II+'s) you must turn on the interrupt forwarding. As mentioned these settings are from my working SSC which currently resides in my GS to access the HD's in my PC. Besides file transfers, this also works for the ADT disk transfer program (8 bit version) and the S-LINK disk server which comes with the Apple Oasis package. IMHO, the SSC method on a GS is better in many ways than using the built in serial port. I especially like the S-LINK method as I can directly access the HD images I use for KEGS. Too bad this only works from Prodos 8. If I knew how to write a GS fst it might be possible to use this method from GS/OS but in this case, the built in port would be much more suited for this with it's higher speed. Ok, here's the SSC info you needed. 0=off 1=on sw1 sw2 term/modem block 1 2 3 4 5 6 7 - 1 2 3 4 5 6 7 (only two possible) 0 0 0 0 1 1 1 - 1 1 1 1 0 1 0 MODEM These settings were used according to the SSC manual and I have had no problems using it. Switch Usage: SW1 1..4 = Baud Rate = set to 19200 (highest SSC speed) 5..6 = Modem mode = set at modem mode 7 = Used with sw2 #7 for RS232C signals SW2 1 = Stop bits = set at 1 stop bit 2 = Data bits = set at 8 data bits 3..4 = Parity = set at no parity 5 = SSC generates line feeds. = set to OFF 6 = Forward interrupts. set to ON 7 = Used with sw1 for RS232C signals. CAVEATS: Do not change the SSC switches 1/7 and 2/7. You should have no need to modify the RS232C signals. The 19200 limit is a design limitation in the A2 series and many of the older serial cards. All but the GS (internal ports only) are stuck with this 'feature'. There may be limits on the baud rate depending on the system speed. For systems based on the standard 1 mhz 6502 you may be limited to 9600 baud. Supposedly, the IRQ forwarding eliminates this bottleneck and allows for a 19200 connect. As both my GS and IIe are accelerated I have not noticed any problems. I tested it on my IIe without acceleration and it worked fine at 19200 also. You must set the dip switches (sw2 5,6) and the terminal/modem block to modem. I have read that the straight through cable will use the 'terminal' setting on this block but will still need the dip switch set to modem. On both the IIe and GS I had to set the Forward Interrupts switch on. Without it, I got some really crazy connections. This switch has been known to cause the system to crash. In this case, your system does not support IRQ's correctly and you may have to settle for the lower speed of 9600 and no interrupt forwarding. For 9600, the dip switch settings are: (again, 0=off, 1=on) 1 2 3 4 5 6 7 1 2 3 4 5 6 7 0 0 0 1 1 1 1 1 1 1 1 0 1 0 On the GS, you can use slot 2, but you will need to set the slot to 'YOUR CARD'. As a benefit when you use this setup, you can simply swap the connections on the Apple and use a modem without pulling out the SSC and changing the switches. Even easier, use a serial switch box to instantly change between the two. As I rarely use a modem anymore (fewer BBS's around here which support an Apple II) this is of little consequence for me. However, I read somewhere where a person used something similar to this and set their Proterm system in two different directories. One for null modem connects and the other for standard modem connects. This way he could set the A/B switch to either and launch the necessary program without making any system changes. Make sure the PC serial port is setup the same as the Apple II. With the setup described, set the PC to: 19200 baud 8 data bits no parity bits 1 stop bit If you have any problems, let me know. -- Phoenyx Have you fed your Apple today? Phoenyx's Pages are back online... http://www.dcnet2000.com/~quazar/Apple2