A twisted pair is usually called a cable, the information wires of which are twisted in pairs (twisted) together. Initially, this type of cable was used exclusively for telephone communications, but later became widespread when building local networks: laying and connecting access points at the horizontal level of the SPS. Currently, the most popular are four- and eight-wire UTP cables. The first of them are designed for laying telephone lines inside an apartment or office, connecting analog and digital telephone exchanges, as well as connecting a PC to a local network. The second - exclusively for creating a LAN.
You will need
- - UTP cable;
- - knife;
- - crimping tool.
Instruction manual
1
UTP cutting is a fairly simple matter. Take a sharpened knife, a clerical one is best. Adjust the length of the blade (leave the tip) and make a longitudinal incision of the length you need.
2
Now carefully loosen the cores and cut off the outer sheath of the cable. As a rule, there is no additional protection in UTP cables. However, from time to time you can meet a plastic tape that separates one pair of cores from another. You can safely unwind it and cut it off.
3
After this, it is necessary to braid each pair of cores, align all cores in a single row according to the following color scheme: white-orange, orange, white-blue, blue. After that, if the length of the cores is uneven, you should cut them all at the same level.
4
Two types of connectors are used to crimp such cables: RJ-11 and RJ-45. The difference between them lies in the size and number of wires supplied to them. RJ-11 are designed for telephone exchanges - they include up to four cores. RJ-45 is used for LAN where eight-wire switching is possible.
5
If you need to connect the phone, then take the appropriate connector, insert the cable cores into it, according to the color scheme. And then squeeze the connector with a crimp. If you intend to connect the PC to the LAN using a four-wire circuit, you must use RJ-45. Since it is designed for eight wires, the wires of the cut UTP cable must be inserted into the guide rails in 3, 4, 5 and 6, respectively. After that, the connector should also be processed using a crimping tool.
