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Wiring Duplex Surface Mount Jack (telephone)

I am using a Duplex Surface Mount Jack to splice into an old 4 wire telephone cord (red/green;yellow/black) so on one end the old phone wire goes in and (question?) I guess I am suppose to attach the red wire to the screw with the red wire (inside the jack) green to green, etc. Now the other end has 2 modular jacks that I have to prepare plugs for. One will be the other end of the old wire I cut red/green yellow black, and then my new wire I am splicing in which is cat5 and I am crimping a plug on it. My main question is I notice on a regular phone cord (one you use to plug a phone into a phone jack) the 2 plugs are opposite each other. I.E. one end is black, red, green, yellow and the other end plug is yellow,green,red, black. So when I crimp the plugs on for this splice how do I wire them ?
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Cinsational

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I understand all about the red/green center pins that what 1st phone line uses... yellow/black are for 2nd phone line etc...... (this is where a little knowledge is dangerous) Since I am splicing into and existing phone line and making it 2 lines coming out and wiring those 2 lines coming out to phone jacks (1 the existing one it already went to and the 2nd a new jack I am putting in)....my concern is... do I have to worry about this flipping of the wires or can I just keep going with my order of yellow(orange/white), Green (white/blue), Red (blue/white) Black (white/orange)  right to the jack.
(not that I understand why these wires are flipped in accessory cords but that is not my concern as I am not making accessory cord... just trying to wire the darn house! (so I don't have to run 1/2 a mile to answer the phone).
Red and yellow = 'ring', green and black = 'tip'

http://www.ling.upenn.edu/~kurisuto/phone_wiring.html

About halfway down that page is an illustration of what it sounds like you're trying to do.
if you're house is 1/2 mile - you have plenty of room for my kids.. they don't make alot of noise.. honest! :)

seriously - I think you'll be just fine without crossing the wires.  Analog phones are very forgiving.  As long as you have the correct two wires on the correct pins, it should work.  Look at it this way - I was re-wiring phones when I was 10 or 11 (MANY.. MANY years ago) - before I had any training in electronics - those lines still work today (my mom still lives in that house) - and in fact a few weeks ago she upgraded to DSL and those lines I ran all those years ago even support the DSL.

Good luck!
I'm probably your mom......yes, it's a big house and this particular room used to be the kids play room and 20 yrs ago we didn't see the need for the kids to have phones. I have 2 one of each and they are both married and then they all moved back (not for bad reasons, but job related and son-in-law was in Iraq for 15 months), the last one just left so now... I am rattling around trying to make improvements and keep myself occupied. Plus electrician wanted $500.00 to put 3 phone outlets in.....
Back to your kids...none of them are quiet....my advice....don't get too much sleep, stay on top of where ever they are preferrably at your house where you can watch all of them! And don't forget to enjoy them every step of the way, it goes by in the blink of an eye.
Ummm... that's not really the proper way to close a question. If you found both our answers useful you should accept one and tag the other's as the assisted solution. Then you can split the points and grade each of the answers as well. The way you've done it here, I believe  the question and answers will be deleted, not saved to the searchable knowledgebase. I see you're a trial member, so I'm just trying to give you some guidance on how it works (or should work), not complaining. Hope that helps.
Well, I tried to split both the answers because you both gave useful answers, but then it tagged my comment and kept saying the split had to be at least 20 points which made no sense to me as they were well within that range, I tried it 4 times,  so you're right I don't know what I am doing. Then I couldn't change anything and it wouldn't accept anything, so whoever wants to fix it, be my guest. Sorry.
Accept and award points
Thanks, Cin. I hope your wiring turns out the way you need it, and all I can say about the guy that wanted $500 for three phone jacks is he must not have really wanted to do it, or maybe he has so much on his plate already that he didn't have time to do it without neglecting another job.