Light sources and connectors, Computer Networking

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- Light source is LED (light-emitting diode) or a laser

- LEDs are cheaper however not as precise (unfocused) limited to short-distance use

- Lasers is able to have a narrow range and better control over angle

- Receiving device requires a photosensitive cell (photodiode) capable of receiving the signal

- Utilizes SC- Subscriber channel & ST-straight tip connectors


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