Glossary
D300529 0115 - BL67 I/O modules16-6
Shield
Conductive screen of cables, enclosures and cabinets.
Shielding
Description of all measures and devices used to join installation components to the shield.
Short-circuit proof
Characteristic of electrical components. A short-circuit proof part withstands thermal and dynamic loads which
can occur at its place of installation due to a short circuit.
Station
A functional unit or I/O components consisting of a number of elements.
Terminating resistance
Resistor on both ends of a bus cable used to prevent interfering signal reflections and which provides bus cable
matching. Terminating resistors must always be the last component at the end of a bus segment.
To ground
Connection of a conductive component with the grounding connection via a grounding installation.
Topology
Geometrical structure of a network or the circuitry arrangement.
UART
Universal Asynchronous Receiver/Transmitter. UART is a logic circuit which is used to convert an asynchronous
serial data sequence to a parallel bit sequence or vice versa.
Unidirectional
Working in one direction.
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