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Splicing at D-subs.

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ceengland(at)bellsouth.ne
Guest

Posted: Sun Jun 28, 2009 5:45 am Post subject: Splicing at D-subs.

Sam Hoskins wrote:

 	  Quote: 	
		   I didn't hear back on this one, so here it is again:



 Bob - do you have a comic book about splicing a second 20 AWG wire 

 into the

 wire(s) heading into a D-sub connector?  I looked through the articles at

 http://www.aeroelectric.com/articles.html, but didn't find exactly what I

 was trying to accomplish.



 I have a 37 pin connector which is plugged into a device.  I want to tap

 into 5 of those wires to connect to another gizmo, and figured you already

 have a razzle-dazzle way to accomplish it.



 Thanks.



 Sam Hoskins

 Murphysboro, IL



 www.samhoskins.blogspot.com <http://www.samhoskins.blogspot.com>

Hi Sam,
	




There's a comic book somewhere on the aeroelectric site showing how to 

feed power *in* to multiple pins on a subD connector. You can just 

reverse the technique to feed multiple outs. Bring one lead out of the 

subD for a few inches. At that point, use an in-line (butt) splice with 

your subD lead in one end and your 2 destination leads in the other.



Of course, this assumes that you have researched the signal quality 

implications of splitting the signals.



Charlie

bbradburry(at)bellsouth.n
Guest

Posted: Sun Jun 28, 2009 5:46 am Post subject: Splicing at D-subs.

Sam,  

Is this what you were looking for?  

   

 http://www.aeroelectric.com/articles/pigtail/pigtail.html  

   

Bill B  

  

       

  

From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Sam Hoskins

 Sent: Sunday, June 28, 2009 8:11 AM

 To: AeroElectric-List(at)matronics.com

 Subject: AeroElectric-List: Splicing at D-subs.  

I didn't hear back on this one, so here it is again:

 

 Bob - do you have a comic book about splicing a second 20 AWG wire into the

 wire(s) heading into a D-sub connector?  I looked through the articles at

 http://www.aeroelectric.com/articles.html, but didn't find exactly what I

 was trying to accomplish.

 

 I have a 37 pin connector which is plugged into a device.  I want to tap

 into 5 of those wires to connect to another gizmo, and figured you already

 have a razzle-dazzle way to accomplish it.

 

 Thanks.

 

 Sam Hoskins

 Murphysboro, IL

 

 www.samhoskins.blogspot.com   	  Quote: 	
		    http://www.matronics.com/Navigator?AeroElectric-List 	
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       [quote][b]

Sam

Joined: 18 May 2008
Posts: 135

Posted: Sun Jun 28, 2009 6:15 am Post subject: Splicing at D-subs.

No - I saw that one and it's for shields.  I was looking for something similar for single conductor wire.



It's no big deal.  I was just looking for one of Bob's elegant soultions.



Thanks.



Sam

 

On Sun, Jun 28, 2009 at 8:43 AM, Bill Bradburry <bbradburry(at)bellsouth.net (bbradburry(at)bellsouth.net)> wrote:

[quote]                    

Sam,  

Is this what you were looking for?  

   

 http://www.aeroelectric.com/articles/pigtail/pigtail.html   

   

Bill B  

  

       

  

From: owner-aeroelectric-list-server(at)matronics.com (owner-aeroelectric-list-server(at)matronics.com) [mailto:owner-aeroelectric-list-server(at)matronics.com (owner-aeroelectric-list-server(at)matronics.com)] On Behalf Of Sam Hoskins

 Sent: Sunday, June 28, 2009 8:11 AM

 To: AeroElectric-List(at)matronics.com (AeroElectric-List(at)matronics.com)

 Subject: AeroElectric-List: Splicing at D-subs.  



I didn't hear back on this one, so here it is again:

 

 Bob - do you have a comic book about splicing a second 20 AWG wire into the

 wire(s) heading into a D-sub connector?  I looked through the articles at

 http://www.aeroelectric.com/articles.html, but didn't find exactly what I

 was trying to accomplish.

 

 I have a 37 pin connector which is plugged into a device.  I want to tap

 into 5 of those wires to connect to another gizmo, and figured you already

 have a razzle-dazzle way to accomplish it.

 

 Thanks.

 

 Sam Hoskins

 Murphysboro, IL

 

 www.samhoskins.blogspot.com

   	  Quote: 	
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[b]

_________________
Sam Hoskins
www.samhoskins.blogspot.com

Bob McC

Joined: 09 Jan 2006
Posts: 258
Location: Toronto, ON

Posted: Sun Jun 28, 2009 7:19 am Post subject: Splicing at D-subs.

Sam;  

   

Same process works. Just bring an inch or so of the wire from the pin out of the connector, splice on your two leads, heat shrink the assembly, just as shown in this “comic book” for shields and carry on. The second wire instead of looping back into the connector as shown here, simply goes to your second device. Either the solder technique or the solder sleeve method are neat and compact.  

   

Bob McC  

           

  

From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Sam Hoskins

 Sent: Sunday, June 28, 2009 10:03 AM

 To: aeroelectric-list(at)matronics.com

 Subject: Re: AeroElectric-List: Splicing at D-subs.  

  

   

No - I saw that one and it's for shields.  I was looking for something similar for single conductor wire.

 

 It's no big deal.  I was just looking for one of Bob's elegant soultions.

 

 Thanks.

 

 Sam    

On Sun, Jun 28, 2009 at 8:43 AM, Bill Bradburry <bbradburry(at)bellsouth.net (bbradburry(at)bellsouth.net)> wrote:        

Sam,  

Is this what you were looking for?  

   

 http://www.aeroelectric.com/articles/pigtail/pigtail.html  

   

Bill B  

    

       

  

From: owner-aeroelectric-list-server(at)matronics.com (owner-aeroelectric-list-server(at)matronics.com) [mailto:owner-aeroelectric-list-server(at)matronics.com (owner-aeroelectric-list-server(at)matronics.com)] On Behalf Of Sam Hoskins

 Sent: Sunday, June 28, 2009 8:11 AM

 To: AeroElectric-List(at)matronics.com (AeroElectric-List(at)matronics.com)

 Subject: AeroElectric-List: Splicing at D-subs.  

  

I didn't hear back on this one, so here it is again:    



 

 Bob - do you have a comic book about splicing a second 20 AWG wire into the

 wire(s) heading into a D-sub connector?  I looked through the articles at

 http://www.aeroelectric.com/articles.html, but didn't find exactly what I

 was trying to accomplish.

 

 I have a 37 pin connector which is plugged into a device.  I want to tap

 into 5 of those wires to connect to another gizmo, and figured you already

 have a razzle-dazzle way to accomplish it.

 

 Thanks.

 

 Sam Hoskins

 Murphysboro, IL

 

 www.samhoskins.blogspot.com  

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_________________
Bob McC
Falco #908
(just starting)

bbradburry(at)bellsouth.n
Guest

Posted: Sun Jun 28, 2009 7:28 am Post subject: Splicing at D-subs.

Sam,

While I was looking I also found the one that Charlie is talking about here.

You just use 6" pigtails and crimp them together as Charlie describes.



Bill B  



--

nuckolls.bob(at)aeroelect
Guest

Posted: Sun Jun 28, 2009 7:28 am Post subject: Splicing at D-subs.

At 09:03 AM 6/28/2009, you wrote:

  	  Quote: 	
		  No - I saw that one and it's for shields.  I was looking for something similar for single conductor wire.



 It's no big deal.  I was just looking for one of Bob's elegant soultions.

 	


   Sorry for the long delay in responding . . . I

   wish there were an "elegant" solution.  Obviously

   the D-Sub pin is limited to the insertion of but

   a single 20AWG wire. The task is to tap

   into a few conductors in a manner that does not

   result in the wire bundle taking on that

   "rabbit satisfied snake" appearance.



   The lowest volume approach I can deduce is

   to bare a short segment (1/4 to 3/8 inch)

   of strands on wire to be tapped a couple

   of inches from the end . . .



 

 [img]cid:.0[/img]

 

 Wrap the branch strands around the open gap, solder

 and heat shrink. Then install the d-sub pin.



 [img]cid:.1[/img]



   You probably want to have the spice occur outside

   the back-shell of the connector. Stagger their

   positions so that they don't "bulk up" a lump

   in one place on the harness.



   Are you committed to 20AWG wire throughout?

   22AWG does this hat-dance a little better.



 



        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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nuckolls.bob(at)aeroelect
Guest

Posted: Sun Jun 28, 2009 7:33 am Post subject: Splicing at D-subs.

There's a comic book somewhere on the aeroelectric site showing how 

to feed power *in* to multiple pins on a subD connector. You can just 

reverse the technique to feed multiple outs. Bring one lead out of 

the subD for a few inches. At that point, use an in-line (butt) 

splice with your subD lead in one end and your 2 destination leads in 

the other.



Of course, this assumes that you have researched the signal quality 

implications of splitting the signals.



Charlie

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

   I think you're referring to the suggestion for

   paralleling pins in a d-sub to achieve higher current

   ratings for conductors in the connector. This technique

   was used on a super-sonic target project I worked on

   some years ago and is illustrated here:



http://www.aeroelectric.com/Pictures/Wiring_Technique/Paralleled_DSub_Pins.pdf



   Sam is looking for a way to add a "wye-intersection"

   into one of the connectors for carrying the same

   current of to another location in the system. I've

   illustrated a suggestion to this task in another

   posting.



        Bob . . .



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

        ( . . .  a long habit of not thinking   )

        ( a thing wrong, gives it a superficial )

        ( appearance of being right . . .       )

        (                                       )

        (                  -Thomas Paine 1776-  )

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

rjquillin

Joined: 13 May 2007
Posts: 123
Location: KSEE

Posted: Sun Jun 28, 2009 8:00 am Post subject: Splicing at D-subs.

As an additional data point, Garmin has a D-sub crimp and poke contact P/N 336-00023-00 for standard density connectors that accommodated an 18AWG wire.



 Ron Q.



 At 08:25 6/28/2009, you wrote:

 [quote]  Sorry for the long delay in responding . . . I

   wish there were an "elegant" solution.  Obviously

   the D-Sub pin is limited to the insertion of but

   a single 20AWG wire. The task is to tap

   into a few conductors in a manner that does not

   result in the wire bundle taking on that

   "rabbit satisfied snake" appearance.[b]

nuckolls.bob(at)aeroelect
Guest

Posted: Sun Jun 28, 2009 8:10 am Post subject: Splicing at D-subs.

At 10:56 AM 6/28/2009, you wrote:

 	  Quote: 	
		  As an additional data point, Garmin has a D-sub crimp and poke 

contact P/N 336-00023-00 for standard density connectors that 

accommodated an 18AWG wire.


	


   I've heard of those but never had an opportunity

   to use them. I'm sure there are other "nifty"

   solutions out there. I'll try to get my hands on

   some and look 'em over. I think I've heard of similar

   products from yesteryear.



   A larger diameter crimp/solder cup adapter would

   be quite elegant. Unfortunately, these devices

   seldom find their way into the Digikey or Radio Shack

   catalogs at attractive prices. Shade tree technicians

   are oft obliged to resort to processes adapted from

   the materials at hand. An as one can see from a study

   of the NASA handbook cited earlier, even the

   Big Guys have adopted some techniques we Poor

   Guys can duplicate.

        Bob . . .



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

        ( . . .  a long habit of not thinking   )

        ( a thing wrong, gives it a superficial )

        ( appearance of being right . . .       )

        (                                       )

        (                  -Thomas Paine 1776-  )

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

Sam

Joined: 18 May 2008
Posts: 135

Posted: Sun Jun 28, 2009 8:52 am Post subject: Splicing at D-subs.

Thanks all - got it!.  Now, off to the airport...



Sam

 	  Quote: 	
		  	




On Sun, Jun 28, 2009 at 10:25 AM, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:

  	  Quote: 	
		    At 09:03 AM 6/28/2009, you wrote:

  	  Quote: 	
		  No - I saw that one and it's for shields.  I was looking for something similar for single conductor wire.



 It's no big deal.  I was just looking for one of Bob's elegant soultions.

 	




   Sorry for the long delay in responding . . . I

   wish there were an "elegant" solution.  Obviously

   the D-Sub pin is limited to the insertion of but

   a single 20AWG wire. The task is to tap

   into a few conductors in a manner that does not

   result in the wire bundle taking on that

   "rabbit satisfied snake" appearance.



   The lowest volume approach I can deduce is

   to bare a short segment (1/4 to 3/8 inch)

   of strands on wire to be tapped a couple

   of inches from the end . . .



 

 [img]cid:.0[/img]

 

 Wrap the branch strands around the open gap, solder

 and heat shrink. Then install the d-sub pin.



 [img]cid:.1[/img]



   You probably want to have the spice occur outside

   the back-shell of the connector. Stagger their

   positions so that they don't "bulk up" a lump

   in one place on the harness.



   Are you committed to 20AWG wire throughout?

   22AWG does this hat-dance a little better.



 



        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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_________________
Sam Hoskins
www.samhoskins.blogspot.com

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