6 Feb
2017
6 Feb
'17
2:38 a.m.
From: Mark Hare
For a more permanent solution, I designed a simple
adapter board that
connects to the BERG 40 connector on the DL11-W and converts it to a DB9
serial port ... I also ordered a 40-pin (non-IDE) ribbon cable to
connect the DL11-W to my adapter.
When I connected everything, the 11/34 would start but
no lights would
appear on the front panel. I tried disconnecting the adapter but leaving
the ribbon cable plugged into the BERG connector, but the problem
persisted. When I removed the ribbon cable entirely, the unit powered on
with no problems.
That's extremely odd. There isn't a pin on the DL11-W Berg connector which
should be able to cause anything like that kind of behaviour. The only
_possible_ thing I can think of, looking at the list of signals on the Berg,
is that you are grounding +5 (TT). Either that, or your DL11-W has some
serious issue?
Since this is a straight-through ribbon cable, I
don't see what could be
causing this problem.
Me either. But clearly it's not just a straight-through ribbon cable....
I myself wouldn't have gone that route; one can obtain 40-pin IDE/DuPont (they
are all .1" spacing pins, and basically interchangeable, module keying)
connector shells, and female pins for same; I would have made a custom cable
to plug into the Berg with that, to a DE-9S or DB-9P connector (depending on
whether one wanted one wired as a DCE or DTE). (I myself make such cables, but
to a DB-25S connector, and then use a commercial DB-25P to DE-9S adapter when
needed.) Oh well...
Does the DL11-W still work, using the jumper cables kludge?
Noel