There is an adapter to go from the 20-pin header to DB19 out there like this:Do you mean there is some way to use it on a Disk ][ card ...or that it is is a disk ][ with a DB19 connector?
Yes. For further reference, see this page:Assuming the latter; treat it like a Unidisk 5.25 / Apple 5.25 Drive?
Yes, I was demonstrating the difference between the DB19 and the 20-pin headers on them. It's actually the same electronics on those cards... only the connectors (and number of connectors present) are different.In your post I see two different cards. I see a Disk ][ Card and an Apple 5.25 Drive Controller Card.
I'm sure there are/were adapters that went both ways for various reasons. They're all compatible, with various restrictions mostly having to do with daisy-chaining. You can daisy-chain two Disk II drives on an Apple 5.25 Drive Controller Card (there was only one connector on there...) but you have to hook up drives one-for-one on the Disk II card. And of course only the A9M0104 and A9M0107 drives had the daisy chain connectors on the back to begin with.So basically, this drive can be used in current form on a 5.25 Drive Controller Card and with that dongle it can be used on a Disk ][ Card? (Whereas even with that dongle a Unidisk 5.25 / Apple 5.25 Drive would not work on a Disk][ Card?)
Well, there are some very real scenarios where magic smoke can be released if you don't line pins up correctly. There's a good amount of current available at 12v on some of them thar pins. And we're strictly talking about 5-1/4" drives. 3-1/2" drives are another story altogether.Oh wow! That is handy to know. The apple docs make it sound like putting a different drive than the card is named for on it will make them both explode. So all you need is a DB19 to 20-Pin-Header adapter and any drive is good on any card; that's pretty awesome.
Probably not. Both are likely recipes for disaster.I guess that means no DuoDisk on a Disk ][ card then? (/wants a DuoDick)
Neat. The next things you'll want are ADTPro and CiderPress.Yesterday I only happened to be in a ][ mood and decided to organize my stuff. Today, I have a mission. A lady from my church wants to recover her data in the form of 5.25 Floppies said to be made on apple ][ (not sure what model). I told her I would see what I can do. So, I'm off to try and learn DOS.
You bet. Good luck!Thanks for your help David!
I'm not talking about sing them both on the same card... even with my limited ][ knowledge I know not to do that.And we're strictly talking about 5-1/4" drives. 3-1/2" drives are another story altogether.
8-o :-x xx( [xx(] ]'> [:I] ]'>DuoDick
Those are so incredibly awesome, I cannot even put it into words.Neat. The next things you'll want are ADTPro and CiderPress.
You can't use 3-1/2" drives on either of those cards, period.I'm not talking about using them both on the same card... even with my limited ][ knowledge I know not to do that.And we're strictly talking about 5-1/4" drives. 3-1/2" drives are another story altogether.
You only need a straight through if you have a SSC, since it can play both DTE and DCE roles. Even with a USB cable in the middle.EDIT- As for cabling (IIe w/Super Serial II) Would I need the male DB-25 - female 9-pin DE9 Null Modem or Straight Through? To use the USB, it appears I need the Null, but what is the difference?
I knew that.You can't use 3-1/2" drives on either of those cards, period.
I don't really know what any of that means*... I just went with Null b/c:You only need a straight through if you have a SSC, since it can play both DTE and DCE roles. Even with a USB cable in the middle.
*except that SSC = SuperSerialCardUSB to RS-232 Adapter - Macintosh or Windows
Converts a Macintosh or PC USB port to a male DE-9, RS-232 connector. This, coupled with one of the null modems above, will complete the circuit from a modern Mac or PC that only has USB ports to an Apple II.
There really isn't room to talk about all the possible permutations without scaring folks off. But with the switch block, the SSC can use either a straight-through or null modem.I just went with Null b/c:USB to RS-232 Adapter - Macintosh or Windows
Converts a Macintosh or PC USB port to a male DE-9, RS-232 connector. This, coupled with one of the null modems above, will complete the circuit from a modern Mac or PC that only has USB ports to an Apple II.
Yes - it's a function of the jumper block of the SSC that you can switch that makes it possible to use either a null or straight cable. All other types of serial connections (IIc, IIc+, Laser 128, Franklin 500, IIgs) need to have a null modem.Will the USB adapter work with both Null and Straight Through? (on a SCC)
The function of the device (DTE vs. DCE) and the wires connecting them was what I was referring to earlier, confusing you. Here is a decent explanation of the terms:So a null cable is usually for connecting two computers and a straight through is usually for connecting a computer to a device?
The functionality of a null modem is to cross the send and receive lines of a serial connection. A DTE and DCE device will already communicate to each other on these send and receive lines (send-receive, receive-send). Two DTEs will have send hooked to send, and receive hooked to receive - which won't work. Which is why a null modem is needed in between, crossing those lines. With the SSC, you can physically choose which way the lines go.Then, for this purpose, there really isn't a difference in functionality? (Unless of course, you wanted to use this same cable to connect your SCC to an actual device)