CMD CQD-200/T questions

[Mr Ian Primus]

I have a CMD CQD-203/T (same board as the CQD-200, only with the S handle for the BA213) in my MicroVax 3900. This is a SCSI tape controller.

Is there any way to upgrade/convert this board into the /MT (disk/tape) version of the board? Is it just a simple EPROM replacement, or something more complicated/impossible?

In it's stock form, can this board work with a CDROM drive at all, or do I need the M or MT version for that?

Thanks!

-Ian