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Tractor Talk Discussion Forum

O/T Phone wiring hookup

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37 chief

01-13-2007 11:05:46




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Is there a way to find which wires to hood up a phone jack? I have 12 wires to choose from. If I find these wires how is the plug wired? Any help appreciated. I would rather be working on my JD engine rebuild, at least I know what I'm doing there, but is's almost too cold, even in Calif. Stan




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Kent in KC

01-16-2007 06:27:01




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 Re: O/T Phone wiring hookup in reply to 37 chief, 01-13-2007 11:05:46  
Blue Orange Green Brown Slate -- White Red Black Yellow Violet



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37 chief

01-13-2007 14:34:13




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 Re: O/T Phone wiring hookup in reply to 37 chief, 01-13-2007 11:05:46  
Got er done, Thanks for the help. Stan



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John N Mi

01-13-2007 12:11:36




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 Re: O/T Phone wiring hookup in reply to 37 chief, 01-13-2007 11:05:46  
First pair in a multi-pair cable is most often a solid blue wire and a white with blue markers to be hooked up to the red and green wires of the jack. The second line is orange and white orange pair to be hooked to the yellow black of the jack. I worked as a telephone man for 40 years. Talk voltage leaves the central office as 48 volts DC and ringing voltage is 90 volts AC. Of course the resistace of the cable wires will drop this by the time it gets to your house.

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doogdoog

01-13-2007 12:24:17




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 Re: O/T Phone wiring hookup in reply to John N Mi, 01-13-2007 12:11:36  
Aloha, Just to add to what John has said, if the wires that you are working with is hot, be carefull because you could get a real zap (90+ volts ringing gen.) when somebody calls in. The ringing gen won"t kill you, but your reaction might, like falling off of a ladder or hitting your head, etc.

Mahalo,
doogdoog



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vitzarus

01-13-2007 11:43:57




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 Re: O/T Phone wiring hookup in reply to 37 chief, 01-13-2007 11:05:46  
You will find something on the order of 24-28 v between any two wires. It was for a long time black and yellow It may be red/green now for there are new standards. at one point there was ring current which was quite a bit to ring the many more phones nowadays but then most are solid state. This voltage is not pure DC so had to be looked at as AC. So get a meter and put it on AC low range and detect between two wires a reading around 28v. Check each of these to ground first by going upto AC high on the meter and check and step that down to where only some milivolts are present. Check the other wire. It should be the same. Ther is only now a flip of the two to get you started if it doesn"t work the first time.

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Peabo

01-13-2007 11:32:37




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 Re: O/T Phone wiring hookup in reply to 37 chief, 01-13-2007 11:05:46  
I forgot too add you can use a volt meter to find out which line is hot. Should be around 20 volts or so, course that depends. What i told you below is assuming the house is wired correctly.



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vitzarus

01-13-2007 11:48:34




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 Re: O/T Phone wiring hookup in reply to Peabo, 01-13-2007 11:32:37  
That explains why I'm out the door you know these new standards.Both agree on a VOM.



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Peabo

01-13-2007 11:25:03




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 Re: O/T Phone wiring hookup in reply to 37 chief, 01-13-2007 11:05:46  
I guess were talking about a regular voice line righht? Sounds like you have 6pair cable from your post. The industry standard would be the white-blue pair for line one. (one white wire and one blue wire). Be sure that you use a white and blue that are paired together not an arbitrary white and arbitrary blue. If the phone jack has four wires (green-red-yellow-black) then connect the white-blue from the cable to the red-green of the jack. If the jack has (white-blue, white-orange) then connect white-blue to white-blue. You need not connect the other wires unless you have a duel line phone. Hope that helps!! If not post back with some more specefics about the cable and jack being used.

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