Question:
Consult the communications industry: Master line, twisted pair, five lines, telephone lines, cable, cable, cable between what is the relationship?
Consult the communications industry: Master line, twisted pair, five lines, telephone lines, cable, cable, cable between what is the relationship?
Answer:
In addition, the cable is divided into the power line (for the purpose of transmission of power) and the signal line (for the purpose of transmitting signals), twisted pair, telephone line and other communication cables are signal lines. In a word, the communication industry, whether cable or optical cable, aims to transmit signals. Analog signal transmission line, data signal transmission cable (cable can really simulate signal transmission over telephone lines through the modulation demodulation devices can signal transmission network, ADSL is the application of optical fiber transmission is), pulse signal can be converted to analog signal through data and equipment.
You say that is a flex cable. Flexer light for transmitting data on the rate of demand is not high, has the advantages of low cost, easy termination. The disadvantage is due to the large attenuation rate is limited, generally also about 100m. OM4 multimode fiber than Gigabit (500 meters million megabytes) there is a big gap.
The five kind of line belongs to a kind of network cable, which is a kind of twisted pair. In addition to the five types of network cable, there are three categories, over five categories, 6 categories, 6A class, the seven category, the greater the number in front of the class, the speed of the network can reach faster, of course, this requires the support of network service providers.
Network cable is a kind of twisted pair, the network is generally 4 pairs, but twisted pair can be divided into single pair, 2 pairs, generally used as telephone jumper. There are 5 pairs, 10 pairs, 25 pairs, until 288 pairs of twisted pair, generally used to transmit voice signals.
Broadly speaking, as long as the current through the metal wires are called cables, telephone lines and cables are no exception, belong to the cable.
