Old telephone hookup

Contents:


  1. Your Answer
  2. Who wrote this page?
  3. Doing your own telephone wiring
  4. Telephones UK - Converting Old Telephones

The voltages can hurt.

I am sure it is made pretty simple here Thats exactly what I need. A more detailed description of their build is at sparkfun. You would need a relay connected to the Arduino to turn it on and off. The problem is, that looks like it is meant to work externally to the phone through the phone line.

I am already in the phone. It looks like that is just generating an oscillating high voltage.

How would I connect this directly to my ringer, rather than through the phone line? The first one porticus. The other two porticus. S-R and S from the ringer go to A and K of the network, which is a capacitor. I don't know what value capacitor is used in the network across A and K , but would guess 0.

Bob Nelson Bob Nelson 1.

Build an Intercom using two old Telephones

It'd have to be a 1: Sign up or log in Sign up using Google. Even if you have to buy wire and modular jacks, you're going to come out way ahead if you do your own work. Installing extra lines can be a problem if you rent an apartment in a multi-unit building. The wiring between the network interface device and the apartment is not the phone company's responsibility, so you'll have to work out with your landlord who's going to do the in-between wiring if you need additional lines. Your landlord may not want you to do the wiring for fear you don't know what you're doing; but the landlord may also object to picking up the tab if the phone company does the work.

Whose responsibility it actually is probably depends on your lease.

I once had a deadbeat landlord who I didn't even bother approaching when I needed a second line installed. Instead, I just ran my own wire out thru a hole I drilled in the window frame and down a six-story fire escape in the alley to the basement, where I had the phone company representative install an ordinary residential network interface device for me next to the big panel. When I moved, I just unhooked my piece of wire and rolled it up for my next wiring project, and then I spackled over the hole I had drilled.

The landlord was none the wiser. This page is mainly about installing additional phone lines, which is one of the most common phone wiring tasks in this age of modems and fax machines. What's described here are the color coding conventions for phone wiring, and how to make the connections.

Your Answer

It's assumed that you know how to use a screwdriver and a drill. It's also assumed that you have at least a rudimentary understanding of electrical safety. Phone wires carry low-voltage electricity, but you probably already know better than to do your wiring barefoot on a wet floor, for example. If you're touching the wires when the phone rings, you can get a substantial jolt; enough current goes thru to ring the old-type mechanical ringing devices consisting of a heavy clapper and some rather large bells, even though most modern phones no longer require so much current.

Best policy is to disconnect your house at the Network Interface Device see below before working on wiring. Even a small shock can interfere with a pacemaker, according to one person who wrote to me. Also, for everybody, it's a bad idea to work on your phone wiring during thunderstorms. In most residential phone wiring, the cable contains four individual wires.

Most phone wire installed in the U.

Who wrote this page?

The kind of wire shown above has recently become obsolete. For all new telephone wiring projects, you should use Cat 5 cable. All of the Cat 5 wire I've seen uses the following color coding:. In either case, the important point is this: In the vast majority of cases, the other two wires go unused-- but if you choose, you can certainly use them for a second line i. This means that if you are installing a second line for a fax, modem, etc.


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Assuming that everything is wired properly thruout your house i. For ordinary phone equipment such a modem, however, you have to convert a "Line 1" jack to a "Line 2" jack. One way you can do this is with a plug-in adapter, but the method described here involves swapping around a few wires in the jack. Don't be squeamish about poking around inside the Network Interface Device. It may look forbidding and official, but you have every right to be there.

The following two diagrams show the color coding scheme for the old kind of wire.

Doing your own telephone wiring

If you're running Cat 5 cable, you'll need to make the appropriate color conversions. In this method one long wire links all of the extensions in a series. This loop method is not widely used anymore. As with the old type of Christmas lights, if one goes out, all of them go out. Using the star method, you are obviously going to have a few wires coming from your NI, as you will have one wire for each of your plugs.

You may want to simplify the wiring and cut your wire costs by having few of the wires carry more than one line or extension.

Telephones UK - Converting Old Telephones

Let's take a 2-line installation as an example. Each pair that comprises each of your POTS lines should be labeled. One of the wires of your POTS line is called the tip wire and the other is the ring wire see chart. There are quite a few possible combinations of colors that could make up your pair. So in order to connect your line to a modular jack, you need to connect the tip wire of the POTS line to the tip wire of the jack, and also the ring wire of the POTS line to the ring wire of the jack.

The green wire is the tip and the red wire is the ring. Using the chart, figure out which of the POTS wires is the ring and which is the tip, and connect them appropriately. If you are not using a phone system and just want to connect your phone jacks directly to the POTS lines, all you need to do is run wire from the NI to your extension jacks.

This works the same way when you're connecting the extension jacks of your phone system to your extensions. Just connect the correct colors to run the wire. Again, connect tip to tip and ring to ring. As long as you are following the tip-to-tip rule, the fact that you are connecting a white wire with brown stripes to a green wire and a brown wire with white stripes to a red wire shouldn't be confusing.