HDI 30 or is it 29??

[Quadraman]

Does anyone have a 1xx SCSI adapter that can check something for me? I just bought one off ebay and it arrived today, but it only has 29 pins in the square end instead of the 30 I thought it was supposed to have. The seemingly missing pin is in one of the corners. Is this normal??

 

[MacTCP]

It's the same with mine, but it works fine.

 

[wally]

Normal for regular SCSI cables and adapters.

That pin position is used by the Apple 590-0718-A HDI-30 SCSI Disk Adapter cable, the one you can use to make a Powerbook (14x,150,170 are exceptions, perhaps others) look like a SCSI disk to another Mac. See Pogue and Schorr: Mac Secrets 5th edition, page 576 for the discussion. It is jumpered over to another pin nearby and signals the Powerbook to enter SCSI mode. You can recognize this cable by the presence of all 30 pins on the HDI end and the female SCSI 50 pin connector (same as SCSI devices) on the other end nearby. [] ]'>

 

[LCGuy]

Yep, your cable is fine...all that pin does is tell the PowerBook to go into SCSI Disk Mode.