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wiring rear headset jacks

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hotwheels

Joined: 01 Jun 2007
Posts: 240

Posted: Thu Jan 03, 2008 10:19 pm Post subject: wiring rear headset jacks

Are any 4 place wiring diagrams available out there?



Front seats - need push-to-talk+intercom wiring

Rear seats -  need intercom only wiring (right?)



I'm thinking 3 conductor shielded wire all the way around. Note that Stein has most excellent pricing compared with others. 



For the rear seats... Have folks run a single cable to each pair of L/R seat jacks (i.e. 2 cables total w/ parallel circuits), one cable per jack (4 cables total) or something different?



If wiring for stereo, how's that different (conductor-wise) than mono? Different jacks too?



Thanks in advance for non-flammable replies.



Regards,

Jay

- jammin' on overhead and doors



       Be a better friend, newshound, and  [quote][b]

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VHMUM(at)bigpond.com
Guest

Posted: Thu Jan 03, 2008 10:33 pm Post subject: wiring rear headset jacks

Jay the wiring diagram will come with your  intercom. The only difference we have made is we have wired the earth on the  jacks all back to the panel . The wiring diagram if stereo will also show  you what wire goes where. Very basic.

  

 Chris

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hotwheels

Joined: 01 Jun 2007
Posts: 240

Posted: Fri Jan 04, 2008 6:34 am Post subject: Re: wiring rear headset jacks

Almost anything is easy, once you know how it's done...



I found the PMA8000B datasheet here:



http://www.ps-engineering.com/docs/PMA8000B_IM.pdf



Rear headset mics: 2 conductor shielded

Rear headset phones: 3 conductor shielded



Thanks to those that responded both online and offline.



Regards,

Jay

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wcurtis(at)nerv10.com
Guest

Posted: Fri Jan 04, 2008 7:08 am Post subject: wiring rear headset jacks

Jay,



You would use individual 3 pair shielded wire for the pilot and co-pilot headphones.  The rear passengers can share a common 3 pair.  For the microphones you will need an individual 2 pair for each place.  Consider also adding another 3 pair to the front and rear for audio input.  Most audio panels now allow separate front and rear audio inputs.  I'll have both front and rear audio inputs with a switch so that front or rear passengers can listen to either front or rear audio source.  This all assumes stereo.



William

http://wcurtis.nerv10.com/

"Be who you are and say what you feel because those who mind don't matter and those who matter don't mind."

-- Dr. Suess 



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bcondrey

Joined: 03 Apr 2006
Posts: 580

Posted: Fri Jan 04, 2008 8:13 am Post subject: wiring rear headset jacks

Also for the archives, here's a link to 1/8" stereo jacks that are

ground isolated:

http://www.mouser.com/search/ProductDetail.aspx?R=161-7300-EX



Bob



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wcurtis(at)nerv10.com
Guest

Posted: Fri Jan 04, 2008 11:08 am Post subject: wiring rear headset jacks

This (1/8") is for the audio input jacks right?  Standard aircraft earphone jacks are 1/4" and microphone jacks are 7/32"



Since I'll be using Bose headsets all around, I'm thinking of NOT installing the standard aircraft mic and earphone jacks.  21st century jacks for an aircraft built in the 21st century.  If I ever have to use a regular headphone, I'd just use a 1/4 - 7/32 to Bose adapter.



http://www.bose.com/pdf/customer_service/owners/og_headset_x.pdf    (Page 1



http://www.aircraftspruce.com/catalog/avpages/bosehdst.php



Aircraft Spruce sells the the Bose jacks here is the part number.

Aircraft Panel Installation Kit  11-01846 $31.00  

William

http://wcurtis.nerv10.com/

"Be who you are and say what you feel because those who mind don't matter and those who matter don't mind."

-- Dr. Suess 



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bcondrey

Joined: 03 Apr 2006
Posts: 580

Posted: Fri Jan 04, 2008 11:24 am Post subject: wiring rear headset jacks

Right - they are for the audio panel aux inputs.



Bob



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