Transmission Channels Digital Literacy.pptx

Transmission channels

1. Transmission Channels

2. Transmission Media This is the physical path that the signal travels on. Examples include cables (twisted pair, coaxial, Fibre optic) and wireless signals (radio waves, microwaves).

3. Coaxial Cable Coaxial cable, or coax, is a type of electrical cable consisting of an inner conductor surrounded by a concentric conducting shield, with the two separated by a dielectric; many coaxial cables also have a protective outer sheath or jacket.

4. Twisted Pair Cable Twisted pair cabling is a type of communications cable in which two conductors of a single circuit are twisted together for the purposes of improving electromagnetic compatibility.

5. Fibre Optics Fibre optics, or optical fibre, refers to the technology that transmits information as light pulses along a glass or plastic fibre. A fibre optic cable can contain a varying number of glass fibres, from a few up to a couple hundred. Another glass layer called cladding surrounds the glass fibre core.