Telephone line is mostly a single strand solid core copper wire. As the electrical signals in the transmission of the carrier, its transmission characteristics, is closely related to the electrical signal frequency range. The frequency range is wide, the higher the frequency, the less transmission characteristics. Because the analog electrical signal frequency range is very narrow, the highest frequency in the copper conductor can also within the range of normal transport, so the analog signals are not affected by copper stranded wire telephone smoothly voice clear and stable.
Areas of application: communication engineering wiring, wiring connection between indoor telephone communication cable system, voice communication system between the main line, program-controlled switches, telephone.
Common materials (conductor) are: the entire copper.
This line of soft, can be buried in the wall, can also be wall off line. Can be used for long distance transmission.
Meet the national standard of only using copper phone line.
Special said HSYV x2x0. 2, 5, and “S” represents the twisted-pair, 2 x2 represent 2 of twisted-pair core (4), 0.5 on behalf of the single conductor of 0.5 mm diameter.
Twisted-pair telephone contrast ordinary parallel lines, the main function lies in the improvement of transmission speed and power of lower consumption.Copper Communication Cable Free Sample
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