Note: this page describes the phone wiring conventions in the United States. I'm not familiar with the phone wiring conventions outside the U. In years gone past, it was the responsibility of the phone company not only to bring phone service to your house but to do the phone wiring within your house as well. This is no longer the case. When you order phone service to your house, the local phone company installs a network interface device , a sturdy grey plastic box usually mounted either in your basement or on an outside wall.
Simple Intercom From a Pair of Old Corded Phones : 8 Steps (with Pictures) - Instructables
This article was written by Jack Lloyd. He has over two years of experience writing and editing technology-related articles. He is technology enthusiast and an English teacher. This article has been viewed , times. This wikiHow teaches you how to wire a landline telephone from your home's phone box also known as a Network Interface Device to your home's telephone jack.
In older telephone installations, the phone cable typically has four wires inside: red, green, black, and yellow. Category cable works just as well as the old cable for phone service, and it works much better for data such as for a DSL internet connection. With either type of cable, once the cable is run to the jack location, wiring the jack is a simple matter of matching up the correct wire colors. In fact, only the phone company can shut off the power to the phone system.
All ringers must be isolated from the telephone line by means of a blocking capacitor or "condenser" in telephone terms. If not, the Direct Current DC from your Central Office will find a short circuit across the ringer coils and will register a "false Busy. This frequency was derived by the average output of a hand-cranked magneto. Magneto telephones were once the most common form of telephone.