Industrial Communication Guide

Glossary

Topology Communication networks are made of devices or components which are connected to each other via lines. The topology of this communi- cation network describes how the devices and lines are arranged in relation to each other. Trunk/drop line Trunk/drop line topology is a mixture of trunk line and drop line topo- logy. By way of comparison: imagine a main road (trunk line) with lots of dead-end streets branching off to the right and left (drop lines), each of which has a few houses along it. Twisted Pair A twisted pair generally refers to two copper wires twisted together to form a pair. A twisted pair has electromagnetic advantages over two individual wires.

UV radiation Ultraviolet radiation

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