By Bill Woodward
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Extra resources for Cabling. Part 2, Fiber-optic cabling and components
In their demonstration, light from an arc lamp was used to illuminate a container of water. Near the bottom of the container was a hole through which the water could escape. As the water poured out of the hole, the light shining into the container followed the stream of water. Their use of this discovery, however, was limited to illuminating decorative fountains and special effects in operas. It took John Tyndall, a natural philosopher and physicist from Ireland, to bring the phenomenon to greater attention.
4705V. If the same binary sample were applied to a different voltage range, the result would be proportional to that range. 13. When reconstructing an encoded analog signal, the higher the sampling rate and the greater the number of bits in each sample, the more accurate the analog reconstruction can be. Next, the steps between each digital sample must be smoothed out to provide a transition from one voltage to another. No matter how many samples are used, the digital output will always produce a signal that jumps from one voltage to another, and then holds each voltage for the amount of time between samples.
1, is like any other link, except that it uses optical fiber instead of wire. 1 Connectors The fiber-optic link Transmitter Receiver Optical ﬁber Electrical signal in Electrical signal out Now let’s look at each component in a little more detail. 2, converts an electrical signal into light energy to be carried through the optical fiber. The signal can be generated by many sources, such as a computer, a voice over a telephone, or data from an industrial sensor. 3. The receiver typically consists of a photodiode to convert the received light into electricity, and circuitry to amplify and process the signal.