- Terminals & connetors
- Terminal block
- Cable tie
- Crimping tool
- Heat shrinkable tube
- Cable marker
- Junction box
- Cable gland
- Corrugated hose & spiral wrap band
- Wire duct
- Din rail
- Cable clips & mount
- Signal light
- Push button switch
- Standoff insulator
- Pet braided sleeve
- Industrial plug & socket
- Auto fuse
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Installing your own extension phone is almost essential because it costs a lot of money to have the phone company do the job.
Wiring is relatively easy to install and safe for amateurs as low voltage is involved.
Personal ownership and installation of telephone (
Many local companies encourage customers to buy their own.
And install and maintain the line of the extension phone.
The wires outside are always provided by telephone companies.
It enters the terminal or junction box called the network interface (
End of Company wiring, the point where your wiring starts).
There is no interface between many old houses and apartments;
In this case, the first Jack or junction box in the house is equivalent to the interface of the telephone company.
From this interface, the homeowner can install wires and telephones, provided they have the ring equivalent number or R. E. N.
Request of the Federal Communications Commission.
Use the wiring and equipment types required by local building regulations.
There is a limit on the number of calls that can be added to the line (
Each additional phone will reduce the volume and clarity of the signal, taking into account a maximum of about five;
Service deteriorated after).
Advertising all telephone devices installed in recent years, as well as all devices now sold, have modular jacks and connectors that allow telephone lines to be plugged into wall jacks.
The wires of some mobile phones are fixed;
Others have modular connections.
Any old advertisement
Accept four old wall jacksprong plugs -
And any permanent wired terminal blocks mounted on a base plate or wall-
When adding cabling for an extended Jack or phone, the modular jack should be replaced.
The easiest way is to buy a plug.
In the modular adapter, the existing four can be inserted
As shown in the figure, the hole jack.
The modular jack socket at the front accepts the modular plug or wire provided by the new phone.
More permanent and efficient conversion-
The only possible permanent wired terminal block-
Is to replace the terminal or four-
Pin jack with cheap modular adapter.
Some telephone companies offer them free of charge;
It can also be purchased from a phone company store or from a store that sells phones and supplies.
The installation is simple.
Remove the cover on the old terminal (
Hold it with a screw in the center).
Card the four terminal covers inside the adapter cover on the old terminal screws.
Hats and terminals are colored
Coding, which makes it quite easy to keep the line straight.
Switching to a modular jack makes it easy to unplug and move your phone.
To install two phones on the same wall, use the double-sided adapter or plug shown in the figure.
Plug it into a modular wall socket or Jack and insert each phone line into it.
These two phones can be used separately or at the same time.
If the wires in the house were originally installed by the telephone company and are still owned by the company, you will pay a monthly service fee for its use and maintenance;
The telephone company will repair this part of the line if necessary.
However, you can ask for the cost of this month to be reduced and responsible for the maintenance of the lines inside.
By first installing a special wiring junction box near the network interface, the task of adding wiring to the extra modular jack is reduced.
Some connectors have a short cable with a module plug that simply plugs into the existing Jack or network interface.
Others must \"study hard \"(
Terminal screws to the inside of the interface.
There are four sets of terminals inside the junction box, so that four cables can be extended from the box to different positions.
The terminal is colored. coded;
If you use special four
The conductor cable for the telephone line, the color on the wire will match the color on the terminal screw.
Although most phone connections can be made with two ordinary
Conductor cable or wire, only two of the four wires are used in most installations, preferably four
Conductor cables sold for this purpose.
There are only two colors.
Coding wires in cables are generally required (
One for ring tones and one for dial tone)
, Connect all four to keep the color code of the entire residence unchanged.
The other two wires are for special service.
For example, for a phone with a lighting dial or call-Wait or call
Another way to extend cabling to add modular jacks is to run cabling directly from one Jack to another.
Use long wires with modular plugs at each end (
Sold in many phone stores and e-stores)
, Or a \"hard line\" telephone line connected to an existing modular jack and a new Jack\'s internal terminal.
When using a wire with a plug at each end, add a duplex adapter to the original Jack so that the phone can be inserted there.
Do not run the wire under the carpet or where it can be stepped on or exposed to moisture.
If possible, run the wires inside the wall and behind the base plate or other decorations to protect them.
Do not run a telephone line through a pipe, pipe, or pipe with conventional wires.
When the wire is not long enough to reach the new position, do not splice the two ends directly to the other wire;
This can cause unhappiness and hardship. to-
Static or other interference is found.
Instead, as mentioned earlier, terminate the wire inside the junction box and run the extra cable from this box to the location of the new Jack.
Later on Thursday, the city\'s final version of individual customers should not permanently connect the home system to the network interface provided by the telephone company;
Modular plugs should be used for any such connection.
When installing the extra phone jack, hard
Only when the home has a network interface should it be routed to the existing Jack, and the home system is connected to the modular connector.
Many phone installations require only two colors
Coding line in four-Conductor cable;
The other two wires are usually used to provide a second phone number for the residence.
A version of this article appears on page C00004 of the National edition on May 21, 1987, with the title: Home improvement.