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D-Sub Pins

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hammer408(at)comcast.net
Guest

Posted: Sat Dec 27, 2008 1:53 pm Post subject: D-Sub Pins

Bob:



Looking thru your archives, I see that one can use D-Sub's are wiring

connections: I.E. - joining 2 wires together, rather than use butt splices,

solder seal, etc....

So my question is:



1- Rather than soldering my Mic & Phone jack wires directly to my jack

outlets, can I solder leads, then use D-Sub pins to join to the leads to the

amin wires?



2- Can I also use these D-Subs for splicing shielded wire: 22 awg wire?



I can see al lot of uses for these D-subs, amazing !!!



Henry

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nuckolls.bob(at)aeroelect
Guest

Posted: Sun Dec 28, 2008 6:54 am Post subject: D-Sub Pins

At 06:55 PM 12/27/2008, you wrote:

 	  Quote: 	
		  

<hammer408(at)comcast.net>



Bob:



Looking thru your archives, I see that one can use D-Sub's are wiring

connections: I.E. - joining 2 wires together, rather than use butt splices,

solder seal, etc....

So my question is:



1- Rather than soldering my Mic & Phone jack wires directly to my jack

outlets, can I solder leads, then use D-Sub pins to join to the leads to the

amin wires?


	


   If you wish. What is the advantage? You've increased parts

   count and total numbers of joints. Are these jacks likely

   to be removed and replaced as part of a maintenance activity?

   If you need to break a wire bundle during routine maintenance

   then it's best to use a complete mated pair of d-sub connectors

   as opposed to individual pin-pairs under heatshrink.



 	  Quote: 	
		  2- Can I also use these D-Subs for splicing shielded wire: 22 awg wire?



I can see al lot of uses for these D-subs, amazing !!!


	


   They ARE a legacy technology with features that

   can address design-goals that are peripheral to

   or sub-sets of the original ideas. But as a general

   rule we try to MINIMIZE parts count and $time$ to

   install wires for best reliability and lowest cost

   of ownership. Splicing of wires is best made with

   permanent joining technologies (crimp/solder) unless

   there is an over-riding interest in future maintenance

   activities made simple by the use of de-mateable

   splices whether grouped as connectors or individual

   pins.



   Keep in mind too that the single pin-pairs under

   heat-shrink are VERY vulnerable to de-mating under

   tension. Use this technique with careful attention

   to support of strands either side of the splice to

   prevent tugging on the joint.

        Bob . . .



        ----------------------------------------)

        ( . . .  a long habit of not thinking   )

        ( a thing wrong, gives it a superficial )

        ( appearance of being right . . .       )

        (                                       )

        (                  -Thomas Paine 1776-  )

        ----------------------------------------

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longg(at)pjm.com
Guest

Posted: Mon Dec 29, 2008 8:14 am Post subject: D-Sub Pins

Henry,



I too use them for various connection points, especially those that may

need to be separated at some point. They are indeed handy. Rather than

get into some fancy connector I butt the male/female pins together,

shrink wrap the whole mess - done. Make sure your shrink wrap is well

done so they don't pull apart. If you need to take them apart use a p

blade or other against the connector to remove the shrink wrap. Don't

touch the wire with the knife.



If you have a connection that needs to come apart regularly, just go to

RS and get two 9/15 pin connectors to join the two. You will need two

4/40 bolt/nuts to keep the DB connectors together. Use a bit of

lock-tite or epoxy on bolts to keep them from separating.



The only thing you need to obey are the amperage limits on the pins. The

rest is up to your imagination.



If you're always in a hurry like me, get your stuff from L-com. Great

prices, incredible service (get your own rep if you like) and very fast

shipping. I get most stuff within a day or two of ordering. They will

also make any custom cable you need. 

http://www.l-com.com/

Glenn



--

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