This should be easy but it's turning out to be frustrating - I bought a SCSI CDROM in a external case on eBay which was indicated to be working on a SE/30 prior to sale. It included a DB25 to 50 pin cable which I plugged into my Mac Color Classic OS7.1 Enabler 401. The drive isn't being seen by my Mac, so I dug into the manuals, and realized I probably needed a terminator on the SCSI bus. Got one, no difference. Changed SCSI IDs from 6 to 5, no difference.
Is there some sort of system file I need to change to get the Mac to see the CDROM?