Tractor Talk Discussion Board |
Re: O/T Phone wiring hookup
[ Expand ] [ View Replies ] [ Add a Reply ] [ Return to Forum ]
Posted by vitzarus on January 13, 2007 at 11:43:57 from (67.72.98.86):
In Reply to: O/T Phone wiring hookup posted by 37 chief on January 13, 2007 at 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.
Replies:
Home
| Forums
Today's Featured Article -
A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
Copyright © 1997-2024 Yesterday's Tractor Co. All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. Yesterday's Tractors - Antique Tractor HeadquartersWebsite Accessibility Policy |
|