I am not aware of any HDI-30/HDI-30 cables, and trying to kludge one from HDI-30/CN-50 cables at the same time as taking care of termination will tax chance, space and time all at once. I have a 2 x CN-50/DB-25 cable (such as is found at the input of Apple's external enclosures) from the eBay seller macmetex, but keep in mind that HDI-30 end connectors have to be the 30-pin rather than 29-pin kind to get the PB into zombie-mode.
I have a couple of HDI-30/DB-25 cables, which can even mate at their DB-25 ends, but not everyone has such in his back pocket. There is the possibility of finding two CN-50/HDI-30 switchable adapters to join with a standard CN-50/CN-50 cable, and givent that most, if not all, CN-50 cables are M/M, that could be a goer. So, on the face of it, I have to say that an older PB to older PB SCSI-connection is possible, but it will take a lot more work than a desktop to PB rig.
PS: PB170 = nix on SCSI Disk Mode. Likewise PB140, 145 and 150.
de
I have a couple of HDI-30/DB-25 cables, which can even mate at their DB-25 ends, but not everyone has such in his back pocket. There is the possibility of finding two CN-50/HDI-30 switchable adapters to join with a standard CN-50/CN-50 cable, and givent that most, if not all, CN-50 cables are M/M, that could be a goer. So, on the face of it, I have to say that an older PB to older PB SCSI-connection is possible, but it will take a lot more work than a desktop to PB rig.
PS: PB170 = nix on SCSI Disk Mode. Likewise PB140, 145 and 150.
de