The advantages of communication system Fiber Optic
the advantages of communication system, Fiber Optic
1) the signaling (Bandwidth) width
2), no electromagnetic induction from
3). Loss rate in low - signal
4). Increasing the distance of the station, repeater
.5) number of signal in transmission are very
6). There is no limit on the use of radio frequency
7) safety (Security)
8 high lifetime, Fiber system Optic last for up to 25 years
.1) the signaling (Bandwidth) wide, due to the frequency of light is very high, making use Bandwidth is wide and can transmit data with high output rate The theory may have to 1014 bps. Current fiber can be used to send information about 1.000 Mbps in 1 kilometers. This is because the response time of the photo diode to light takes 10-9 seconds. Normal fiber can be used to send the audio data simultaneously, 30000 channel and the data transmission rate so high is suitable for use to send data, voice, image, and digital data from the computer to the ready. . in the system ISDN (Integrated Services Digital Network)
.2), no induction of electromagnetic waves. Since late Fiber Optic made of glass the silica, which has properties not electric conductor. Therefore, no electromagnetic induction from the outside, such as lightning, thunder.Television, radio, etc., and the fiber is a nonmetal. The battle was not long from electromagnetic waves or radio signals, as well as sparks (electrical sparks), so the error is lower than in 10-9.10-6
.3) loss rate in low - signal loss in the current Fiber Optic lowest is 0.2 dB / Km (Coaxial Line. Or copper wire loss minimum 1 dB / Km)
.4) increase the distance of the station, repeater The distance between the repeater stations (Repeater) will increase because the loss rate in the Fiber Optic low, due to loss of sending of signals. (Signal loss).Therefore, it may use the repeater to repeat a new signal distance apart to 20-30 miles. While the copper wires must use the repeater every 2.8 miles in the digital signal cable.5) number of signal in transmission is much, because in Fiber Optic only one. Can contain a lot of communication channels is three car - signal image, voice and data (Computer Network) by separate clearly. Is the phone,Data (Computer Radar, Data), cable TV, video (Video Conference: a remote meeting to signal and image signal and noise. )
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