* '''Whereever possible, the wire numbers from the PC standard were used!''' (See the article about the connector for the reason why: [[Connector:2nd disc drive (CPC664, CPC6128, CPC6128+)]]
* The universal solution connects a 3" or 3 1These schematics differ from most existing schematics on the web in that way, that they don't use GND to pull signals active low, but the /2" disk DRIVE SELECT line via diode. This ensures that the other drive to any CPC with disk controller ** on the bus doesn't become influenced. You can even use Part A for connecting a 3" disk drive solder the wire containing the diode directly (without the diode) to a CPC664/CPC6128/CPC6128plus and Part Bx for connecting a 3 1/2" disk drive to a CPC464 with DDIGND-1 at wire and you will get the same time** Part Bx, which is also as described in other tutorials but the full cable for the CPC464 with DDIside switch and -1, can even if applicable - the signal RDY will also be used to connect in effect for the PC other disk drive as A: on the DDI-1, though then. We will refer to this doesn't work with as "permanent" (signal is active all time/for all drives) vs. "semi-permanent" (signal is active while accessing the specific drive only).
* Although schematics for drives without own RDY-Signal are included, it is highly recommended The universal solution connects a 3" or 3½" disk drive to use drives any CPC with RDY to ensure maximum compatibility. However, drives that disk controller ** You can simply be jumpered even use Part A for connecting a proper RDY-signal aren't made any more 3" disk drive to a CPC664/CPC6128/CPC6128plus and can probably only be bought used. Though, some drives that are still be sold or were still be sold recently can be [[Modify PC floppy drives|modified]] Part Bx for connecting a RDY3½" disk drive to a CPC464 with DDI-signal. Be aware that some of these drives will1 at the same time** Part Bx, especially on a which is also the full cable for the CPC464 with DDI-1, still only work as can even be used to connect the PC drive Bas A: after modifying them for on the RDYDDI-signal. Probably 1, though this is related doesn't work with all drives, probably due to the drive's RDY-conditions during power up, which aren't not being met by the CPC-controller. To operate (Old TEAC drives with lots of jumpers are known to work, while some other brands won't, although they have a RDY-signal sufficient for the operation as drive under these conditions, B:. In such cases you will either need a drive which also allows to play with the drives MOTOR ON conditions to be configuredjumpers, get a "better" drive or again, a (semi-)permanent RDY as last resorteven for drives with own RDY.)
* These Although schematics differ from most existing schematics on the web in that wayfor drives without own RDY-Signal are included, that they don't it is highly recommended to use GND drives with RDY to pull signals active low, but the /DRIVE SELECT line via diodeensure maximum compatibility. This ensures However, drives that the other drive on the bus doesncan simply be jumpered for a proper RDY-signal aren't become influencedmade any more and can probably only be bought used. You Though, some drives that are still be sold or were still be sold recently can solder the wire containing the diode directly (without the diode) to be [[Modify PC floppy drives|modified]] for a GNDRDY-wire and you will get signal. Keep the same as described in other tutorials but limitations from the side switch and - if applicable - the permanent RDY will also be previous note in effect for the other disk mind when using such a drive thenas A:. This especially applies to modified (rather than jumpered) drives.
* Hints for fitting cut/squeeze plugs on flat-ribbon cable (Assuming you were building the cable according to the PC wire numbers with red wire = wire 1), connectors seen from back:
* [[Frank Strauss Elektronik|Frank Straus 5 1/4" Drive]]
* G+L Electronic (3 1/23½" and 5 1/45¼" disk drives)
[[Category:Hardware]] [[Category:Peripherals]]