microvax/vs 2000 expansion base circuitry ?

Peter Coghlan cctalk at beyondthepale.ie
Thu Sep 23 17:52:16 CDT 2021

> I've read that there is circuitry in the expansion base (BA40A?) has
> circuitry .  Does anyone know what the circuitry does?  Is it required
> for SCSI operation?  (I hope not, or I'll have to kludge one up to make
> use of pk2k SCSI boot-roms!)

I don't know what circuitry there is or is not in the expansion base.
Whatever the case, it is not required for SCSI operation.  I have had
no problems plugging one end of a 50 way ribbon cable into the 50 pin
IDC socket on the motherboard and the other end into a SCSI disk.

Peter Coghlan.

More information about the cctalk mailing list