Date   : Wed, 26 Oct 1983 22:59:51-CDT
From   : John Otken <CC.Otken@UTEXAS-20.ARPA>
Subject: Help with Siemens FDD100-8

I am trying to connect two Siemens FDD100-8 floppy disk drives to my
CCS 2422 disk controller and seem to be having a strange problem.  I
can get either drive to work ONLY if it is daisy chained to my
Shurgart 801 on my two drive cable.  Alone the Siemens don't work,
together they don't work, with the 801 they (one at a time) work fine.
When used with the 801, they work as either A or B drive and on either
position of the cable (with proper termination).  When they don't work
they just sit there refusing to select or load the head.  I have spent
considerable time changing this jumper and that jumper and am quite
sure I have made no dumb mistakes (like forgetting the terminating
resistor pack).  I have called CCS and their advice (connect jumpers
J and L, H and F) not only doesn't look right but doesn't work either.

So, has anyone had much luck configuring FDD100-8s especially with the
CCS 2422 disk controller?

John Otken     CC.Otken@Utexas