How to connect a telephone socket
Installation of telephone networks and other similar communications is much easier to perform compared to electric lines. This is due to the absence of voltage that is dangerous to human life and health. However, even here there are specifics and certain difficulties. For example, many people do not fully understand how to connect a telephone socket. A large number of modern designs of telephone sets and connecting devices require careful selection of the most suitable option.
Types of telephone sockets
All telephone sockets are divided into three main categories:
- Sockets "Euro" built-in.
- Telephone sockets are external.
- Outlets of the old type.
All products differ only in appearance. The connection order for each type is almost the same and does not have significant differences. In turn, all modern telephone sockets and connectors are also divided into three main categories.
The RJ11 model with two wires is very rare. Much more common is the RJ14 variant, where there are 4 wires and 4 pins. Most models of telephone sockets are produced for this type of connector. Connection of one home line is carried out using two middle contacts No. 2 and 3. Very often in offices it is required to connect a second telephone line. For such cases, contacts No. 1 and 4 are provided. If the design of the socket is consignment note, then the telephone line is connected to the two middle contacts with red and green wires.
There is an RJ25 socket that has three pins. It is undesirable to purchase such an outlet if you plan to connect it yourself. In the event that such an outlet is nevertheless purchased, one telephone line must be connected using contacts No. 3 and 4. Red and green wires are connected to them.
When connecting a telephone cable to any type of socket, any RJ11, RJ14 or RJ25 connector will work. They have the same dimensions and differ only in the number of contacts. Color marking of wires is observed according to the generally accepted scheme. For example, an overhead outlet uses red and green wires that extend from the pins to the connector.
In a house or apartment, the connection of a telephone socket is usually carried out with a two-wire wire. In offices and other places where multiple telephones are used, telephone jack connections can be made with a two-, four-, or six-wire telephone cable. Used in computer networks.
Preparing to connect
Before proceeding with an independent connection, it is necessary to carry out some preparatory work. For installation work, you will need the socket itself, side cutters or another device for stripping insulation, a screwdriver and a tester.
Old-style sockets of the RTSHK-4 brand are still in use, so from time to time you have to deal with their installation or reinstallation. To connect them, a two-wire cable with a cross section of 0.3 to 0.5 mm 2 is required, for example, KSPV 2x0.5 or TRP. When installing sockets, a capacitor with a capacity of 1 microfarad was used to check the telephone line at the time of the call. It was used only for one outlet.
Currently, socket outlet capacitors are not required, which improves the quality of telephone lines. Therefore, their installation requires a minimum of tools and materials.
Instructions for connecting a telephone socket
During the connection, certain rules and sequence of work must be observed. All actions must be performed with protective gloves. The fact is that even in a calm state, the telephone line is energized by about 60 volts. When touching the wires with wet hands, there are quite unpleasant sensations. The voltage during a call becomes more dangerous, reaching already from 100 to 120 volts.
Using side cutters or other tools, you need to carefully remove the insulation from the wires so that notches form on the cores. Notches on the cores can later lead to a fracture of the wire.
Next, the cover of the socket housing is removed, inside which there are red and green wires, which are located according to the standard on the upper terminals. They are connected to a telephone line. Quite rare is the location of the wires on the middle pins Nos. 3 and 4, or even on Nos. 2 and 5.
The wires in the outlet must be connected to the telephone line in the appropriate way: red is connected to the minus, and green to the plus. Polarity when connecting is not of great importance, however, for some telephones it can be very important. The polarity in the telephone line is determined using a tester. If the connection is incorrect, the voltage readings on the device will be negative. If the tester is not available, you can use a cut raw potato, where the bare ends of the wire are stuck. Near the positive end, the color of the potato will be different.
After connection, the socket housing is fixed in the right place using double-sided tape. After that, the lid snaps on and the phone's performance is checked.
Hidden installation of a telephone socket
A more difficult option is to install a hidden telephone socket. To install it, you will need a hammer drill with a crown, fasteners, a stripping tool, screwdrivers and a tester.
Previously, a telephone wire is laid to the installation site, laid in a strobe, cable channel, or laid along a plinth. After that, the most suitable nozzle for the puncher is selected in order to make a hole for the mounting box to a sufficient depth. The box is installed in the finished hole and secured with dowels or self-tapping screws.
Then the telephone cable must be connected to the outlet in the same way as for the overhead product. The socket housing with the wire connected is placed in the junction box and fixed with spacer screws flush with the wall surface. Finally, the outer frame and overlay are installed, after which the operability of the outlet is checked.
Wiring diagrams for telephone sockets
Various schemes can be used to connect telephone sockets. The presented option covers all possible connections, up to a parallel phone. If necessary, especially in offices, the phone can be connected to a modem.
The scheme is complemented by other useful elements. For example, in order to turn off the parallel telephone, a special switch is provided. To equalize the signal on the line, special microfilters can be installed. In addition, one or another connection scheme depends on the parts and elements used. You should take into account the specifics of the house, apartment or office, their layout and other features.
