Lan Cable Suppliers introduced that communication cables are cables that transmit telephone, telegraph, television, radio, fax, data and other telecommunication information. Its uses are divided into:

(1) Local communication cable. It is used in telephone lines in urban, suburban and local areas.

(2) Long-distance communication cables. Carrier multi-channel communication line; long-distance high-frequency carrier communication and low-frequency communication; long-distance communication trunk line.

(3) Communication cables for telecommunication equipment. Interconnection of switches and other transmission equipment, telephone and telegraph equipment, and data processing equipment; first-level wiring, second-level wiring and connection with distribution equipment; Audio connections, also used for audio connections between other communication equipment; digital switching equipment internal or digital A short segment connection between devices.

(4) Symmetrical cable for digital communication. Digital communication systems such as integrated services digital networks, local area networks and data communication systems.

(5) RF cable. Transmission of radio frequency signals in radio communication equipment and related radio electronic equipment; closed-circuit television, shared antenna television systems as branch lines and subscriber lines, and other electronic devices; In special environment, it has dual functions of signal transmission and wireless. The frequency of use is 1GHz the following.

(6) Submarine communication cables. The communication between the mainland and the offshore islands, the carrier communication line connecting the mainland and the islands and between the islands, the 120-way submarine trunk line communication system, as the communication line between the coastal cities and the islands.

(7) General communication lines. The user communication line between the communication user terminal equipment and the cable distribution box (box); the indoor line for the telephone; the connection between the telephone and the microphone or the junction box, and the connection between the switch and the plug.

(8) Optical cable. It is a kind of communication cable at present, the use band is within the near-infrared light, and the wavelength range is 0.8 ~ 1.6μm. Since the communication capacity increases in direct proportion to the frequency of electromagnetic waves, and the optical cable communication frequency is 1014 to 1015 orders of magnitude higher than the commonly used microwave frequency, it is 104 to 105 times higher, so the characteristics of optical cable communication frequency bandwidth and large capacity are obvious.

Through the above introduction, Distribution Cable Suppliers hopes that you can simply refer to the content of this article in future use.