Connect internal scsi drives externally?

[squoril]

So i found this page where it looks like he was tapping into the internal scsi bus (which all goes to the DB-25 as well?)
And this page which has a schematic of the IDC-50 to DB-25 internal wiring

Is their any reason i cant just wire up an IDC-50 cable into a db-25 plug and run the hard drive out of my classic II into the serial port of my mac plus? (with external power supply to the hard drive applied before mac power on)

 

[Realitystorm]

I assume you mean the external SCSI connector of you Plus? It might work, you might need to check that the drive is terminated properly, either jumpers or resistor packs