[eagle] Re: CAN-Do-Too! ??????????

Chuck Green greencl at mindspring.com
Mon Jul 16 16:19:10 PDT 2007

I have had one experience with the high density D connectors.  They were 
much larger pin count than 9 or 15!  After someone absolutely insisted 
that we use them I did the board lay out.  Turned out that they were 
*totally* unavailable!!!  I did the board layout again@#$%&^* using 
standard Sub-D's.  That was a number of years ago so I would hope things 
have changed.  If someone is absolutely confident they can obtain the 
parts we need then I'm not at all opposed to using them (remember, I'm 
not volunteering to do parts procurement for this project; this is a 
good time to use someone that's good at parts procurement).

While at Goddard for P3D vib test I noticed NASA satellites using 
standard Sub-D's.  That was also a few years ago.  Anyone know of High 
Density Sub-D's being used on other satellites?


Bdale Garbee wrote:
> On Tue, 2007-07-10 at 09:02 -0700, Chuck Green wrote:
>> The sub-miniature D connector series has served us well.  If anyone has 
>> *experience* with something they think might be a better choice, we'd 
>> love to hear about it.
> At the AMSAT annual meeting that was held near Washington, D.C., a
> couple of years ago (three?), someone approached me after the CAN-Do!
> talk that Stephen and I gave to ask why we weren't using the
> higher-density connectors that put 15 pins in the same shell size as the
> 9-pin version of the series we have been using... and followed up by
> sending me what looked like mil/aero-spec samples of such a part that I
> probably still have in my basement somewhere.  I'm sorry that I can't
> recall at all who that person was, but it was someone who claimed to be
> using such connectors professionally with good results.
> At the time, we weren't likely to be redesigning the units any time
> soon, so I didn't take any action on this suggestion.  If we're going to
> revisit the design and think we need more than 9 pins, it might be worth
> investigating higher density connectors like that?
> Bdale

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