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converter from SCSI 68 pins to 50 pins

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Is it something possible to do? I have a few large HDD in an enclosure that should in theory work, but they have the wrong type of SCSI connector on them. If I could find a adapter that could bring them usable in my G3 Beige, that would be great.

 

Thank you

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Yes, there are plenty of these adapters on Ebay but very few have the terminator built in so you'll need one of the 68-pin cables that has a terminator at the end. You can also terminate it on the 50-pin side with a cable like this in your mac: http://www.ebay.com/itm/190158-008-Compaq-Narrow-SCSI-50-pin-3-Device-Cable-with-Terminator-/271910662444?hash=item3f4f23712c:g:bngAAOSwMmBViaab

Edited by 360alaska

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I'm all trying to figure out how to connect all of this links together!

 

The HDD have female connectors. The adaptor you provided Uniserver, I thing it has female on one side and male on the other, is that correct?

 

Does it has a SCSI termination included or not? that black portion on the top of the adaptor looks like it is for something useful, but I cannot guess what. Or it is the reverse side of the male port on the other side only.

 

I have a 68 pins SCSI terminator on the enclosure, I wonder if that could be used on the male connector on the adaptor itself.

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Oh, another fact, I have a PCI Adaptec SCSI card that came with that Beige when I got it (AHA-2940W/2940UW) but it does not look like the beige can boot from it. When I booted with Mac OS 8.5, it was not even detected, no disks mounted.

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If the controller is 68 pin, you need termination on the upper 8 bits of the bus. If the controller is 8 bit, then so long as termination on one end is 16 bits and SE, then 8 bit termination on the other end will be sufficient to allow narrow negotiation.

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Obviously, on the Beige G3, the controller should be 8 bits.

 

So if I do understand you well, that means I should not need to worry at all about the termination on the other side. Is that right?

 

I was thinking about it, and told myself, if I install any 50 pins SCSI HDD, I never had to worry about this. 

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