On Saturday 14 July 2001 02:06, Master of all that Sucks wrote:
  How about on my DS5840/VAX6000?  Doesn't have MFM.
 Peace...  Sridhar
 On Fri, 13 Jul 2001, Brian Hechinger wrote:
 > On Fri, Jul 13, 2001 at 07:42:27PM -0400, 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.
 >
 > it's the MFM "Extention" cable.  you can put external MFM devices on
it.
 >
 > -brian 
You are right.  The VS3100 doesn't have MFM either.  That type connector was
used for a lot of things.  Most likely SCSI on the MV3100 and VS3100.  I
think the 8-port serial card on the  MV3100 used a centronics type connector
but may have also used one of those.  If you have a male and a female it may
be the qbus extention or TSV05 cab kit.  Also printer interfaces used that
connector.  Only the old MV-I, MV-II, MV2000, etc used it for MFM or tape
although I suppose any q-bus vax could have an old MFM or tape controller or
any of the above on it.
PW