Question

Write a note on co-axial cable and optical fiber cable with neat structural diagram.

Answer 1

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Coaxial cables are the guided media that carnes the signal of higher frequency range compared to twisted pair cable. Coaxial cables are also called coax. (short form). Two types of coaxial cables are widely used: 50 ohm cable and 75 ohm cable. 50 ohm cable is used for digital transmission and 75 ohm cable is used for analog transmission. Due to the shield provided, this cable has excellent noise immunity. It has a large bandwidth and low losses. Co-axial cables are easy to install. They are often installed either in a device to device daisy chain (Ethernet) or a star (ARC net).

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