> uh, looks PMAZ-B (or is it PMAZ-AB?) versus PMAZB-AA  confusion.

According to ULTRIX binary digout, PMAZ-BA is IOASIC DMA assisted SCSI
circuit built inside IOASIC DECstations.  PMAD-BA is the similar
beast. 

Tohru Nishimura
Information Technology Centre
Nara Institute of Science and Technology