How to Add on a Separate Phone Jack
A telephone jack is an interface between a telephone and the telephone wiring in your house. It fits over a hole in the wall that contains an open end of the telephone cable for your house. A telephone can typically connect to only one telephone line while your house may contain wiring for up to three telephone lines. You may choose to add a telephone jack that connects to a second telephone line if your house is so equipped. Does this Spark an idea?
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Instructions
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1
Identify the telephone wiring by color. Each telephone line uses a positive wire known as the tip wire and a negative wire known as the ring wire. The traditional color code for telephone wiring uses a green wire for the line 1 tip and a red wire for the line 1 ring. A black wire is the tip for line 2 and a yellow wire is the ring for line 2.
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2
Select the pins to which you will connect the telephone wiring. The socket in a standard telephone jack contains six pins but a telephone typically uses only the two innermost pins. The left innermost pin is pin 3 and connects to the ring wire. The right innermost pin is pin 4 and connects to the tip wire.
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3
Trace the wire that connects pin 3 to a terminal and call it terminal A. Trace the wire that connects pin 4 to a terminal and call it terminal B.
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4
Choose the telephone line to which you will connect your telephone. Assume you wish to connect your telephone to line two in this example.
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5
Remove the screws for terminal A and terminal B with a screwdriver. Strip ¼ inch of insulation from the ends of the black and yellow wire with the wire strippers. Wrap the end of the yellow wire around one terminal screw. Wrap the end of the black wire around the other terminal screw.
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6
Fasten the terminal screw with the yellow wire to terminal A with a screwdriver so that the screw holds the wire in place. Attach the terminal screw with the black wire to terminal B in a similar manner.
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7
Use a screwdriver to attach the telephone jack to the wall with the mounting screws. Plug the telephone into the socket of the telephone jack.
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