On 13 Jul, Master of all that Sucks wrote:
> 
> Hi.  I seem to find this connector with 50 pins in three rows in a D-shell
> on my VAXservers and VAXstations.  I even have one or two on my DECsystem
> 5840.  Could someone tell me what they are?  Three rows.  17 - 16 - 17.
On the older babyVAXen like the VAXserver 3100 this connector was an
MFM interface to connect external MFM drives. On newer MicroVAXen there
are two of these connectors with a QBus interface on them. I never saw
a babyVAX with build in Pertec interface and the connectors for SCSI
where HD SubD 68 or normal Centronics 50 pin. Serial multiplexers used
36 (?) pin Centronics connectors. 
I don't know what the connectors on the biger machines may be used for. 
-- 



tschuess,
          Jochen

Homepage: http://www.unixag-kl.fh-kl.de/~jkunz