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S700 switch pin positions

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Erich_Weaver(at)URSCorp.c
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Posted: Sat Jul 19, 2008 2:48 pm Post subject: S700 switch pin positions

Found an unused Carling 2-10 switch in my electrical supply box today, so pulled out my now ragged copy of the Aeroelectric Connection and my cheapo RS multimeter to confirm what I had previously posted - that the pin positions were transposed left to right from the diagram in the 'Connection.

 

 They are indeed transposed, assuming a view looking at the back of the switch with the keyway up.  The date code on the side of the switch is 0443.

 

 I am sure that the transposition is not just a single switch anomaly, because I had more than one of these on my plane, and I remember making the wiring correction in multiple places - in my case, two p-mag switches and a landing lights/wig-wag switch.

 

 regards,

 

 Erich Weaver

 

 

 This e-mail and any attachments are confidential. If you receive this message in error or are not the intended recipient, you should not retain, distribute, disclose or use any of this information and you should destroy the e-mail and any attachments or copies.  [quote][b]

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nuckolls.bob(at)cox.net
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Posted: Sat Jul 19, 2008 3:08 pm Post subject: S700 switch pin positions

At 06:45 PM 7/19/2008 -0400, you wrote:



 	  Quote: 	
		  Found an unused Carling 2-10 switch in my electrical supply box today, so 

pulled out my now ragged copy of the Aeroelectric Connection and my cheapo 

RS multimeter to confirm what I had previously posted - that the pin 

positions were transposed left to right from the diagram in the 'Connection.



They are indeed transposed, assuming a view looking at the back of the 

switch with the keyway up.  The date code on the side of the switch is 0443.



I am sure that the transposition is not just a single switch anomaly, 

because I had more than one of these on my plane, and I remember making 

the wiring correction in multiple places - in my case, two p-mag switches 

and a landing lights/wig-wag switch.



regards,



Erich Weaver


	


   Excellent hard data! Thank you sir.  I've

   not heard from Carling yet but it seems likely

   that their "odd-man-out" position in the market

   place for switches would be a powerful incentive

   to swap columns and bring their functionality

   into synchronization with the rest of the industry.



   I think I'll be revising the switch ratings document

   to include a caveat for testing any given switch

   to determine it's position in the industry. Carling

   is the only company I'm aware of that did not conform

   but that doesn't mean there are not others.



   It would be really cool if Carling could offer a date

   range for the change-over.



   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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icubob(at)newnorth.net
Guest

Posted: Mon Jul 21, 2008 3:02 am Post subject: S700 switch pin positions

i also pulled out a 3 yr old carling 2-10 switch and it matched the diagram 

of a switch as it was wired as a master in one of the ''z'' schematics. it 

was correct according to the diagram in the schematic. i didnt compare it to 

the chapter on switches. i vaguely remember though calling b and c about 

this issue several years ago and was told a diagram [dont remember which] 

was backwards. i guess i will double check the z drawing and the other 

diagram in the book.

        bob noffs

---

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nuckolls.bob(at)cox.net
Guest

Posted: Mon Jul 21, 2008 6:12 am Post subject: S700 switch pin positions

At 05:58 AM 7/21/2008 -0500, you wrote:

 	  Quote: 	
		  



i also pulled out a 3 yr old carling 2-10 switch and it matched the 

diagram of a switch as it was wired as a master in one of the ''z'' 

schematics. it was correct according to the diagram in the schematic. i 

didnt compare it to the chapter on switches. i vaguely remember though 

calling b and c about this issue several years ago and was told a diagram 

[dont remember which] was backwards. i guess i will double check the z 

drawing and the other diagram in the book.


	




    Very good info sir. Your report combined with notes from

    other folks suggests that Carling converted to the industry

    wide conventions about 4 years ago. I'm hoping to hear from

    somebody at Carling but not holding my breath.



    I've put the switch article in my to-do bin and will update

    it shortly to reflect this new data.



    Thank you all for your help in sorting it out.



    Bob . . .

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