IDC 40-pin connector for 80-conductor cable?

Unless I missed what you're saying, such a cable should be available at any good computer hardware store. E.g., Newegg has them under Computer Hardware -> Cables -> IDE. Some are specifically said to have 80 conductors, but all models specced for ATA133 should be 80-conductor types.

Those are cables with typically 1 female connector at one end and 2 female connectors at the other end.

I need 1 female and 1 male connector.

IDC male 40-pin for 80-conductor flat cable are apparently made from unobtainium...

Dave

startech

Cheers

Oops. Sorry, I didn't read your post carefully enough. The time I needed *that* type of connector which was about 15 years ago for my Amiga, I made my own. I made a small pcb with two double rows of pads for header pins, spaced 0.1". The pins came from jumper headers salvaged from a dead PC card (everything had lots of jumpers those days). Rather tedious but I didn't have any alternative. One end of the female IDE cable plugged into one double row of pins and the other double row was free. If I had to make one again, I'd use a 40-pin IDC header block or the set of pins from an old IDE hard disk.

No male connectors.

This results in reversing the pin assignments, ie, pin 1 connects to pin 2. Not good.

put the female connector on the reverse side in one end?

might even add (or remove) the strain relief that go on top of some idc connector so the connectors will still look to be on the same side

-Lasse

The configuration of IDC connectors is such that you can put the connector on either side of the cable (with the #1 pin indicator at the same end) and you maintain the same pin connections. In other words, you can't reverse pins by flipping the connector.

I don't think you'll find them. The female connectors have shorting links inside and I don't think I've ever seen a male one. Maybe you'll have to lay out a PCB.

Best regards, Spehro Pefhany

UDMA cables have specific "keying" where specific pins are not used.

They are differential pairs where every other conductor is ground.

Try hunting for UDMA male if you can handle the missing key.

Not sure if clamping a standard 40 pin IDC onto an 80 pin flat cable yields the same thing. Probably does as I can't think of anything about a UDMA cable connector that is different other than the blocked pin.

goddamned cross-posting idiot.

Desolder this:

Or buy this:

or buy the pins and make the header yourself without the shroud:

This is also untrue and incorrect. It does not change the fact that it was a stupid suggestion though.

Can you come up with a way to connect pin 1 to pin 1 of two connectors, placed face to face, connected by a 40-pin header?

I don't think they make what you are looking for.

You might be able to fake it with a make-male gizmo. That is plug a bunch of pins into a female connectot to turn it into a make connector.

If you can't find something targeted at that use, a normal through-hole header might work. The board end will probably be too short. Mumble. Solder two together, or push the pins off a bit, or ...

This results in reversing the pin assignments, ie, pin 1 connects to pin 2. Not good.

----

Either the pins will be what he needs or a male connector won?t do it wither. It will come out the same unless he twists some strands of the cable.

Think about it.

I don't know why somebody would want a male end on a cable, anyway. The pins would not be protected and get bent when in storage.

mike

This results in reversing the pin assignments, ie, pin 1 connects to pin 2. Not good.

I think you need to get two F connectors and try it yourself. Put them face to face. Pin 1 aligns with pin 2.

The M connector is *designed* to mate with the proper pins. F connectors were not designed for that.

I think you need to get two F connectors and try it yourself. Put them face to face. Pin 1 aligns with pin 2.

The M connector is *designed* to mate with the proper pins. F connectors were not designed for that.

---------------- What you implied was to turn the male header/connector around and face it the other way (face to face means one is reversed). Of course it will be pin

Not a big deal for somebody without 3D dyslexia. I can prove that by attempting to do crown molding on the ceiling....LOL

mike

No it doesn't.

There's no way to get 2 female connectors to mate pin 1 to pin 1.