Distributor (communication technology)
Distributors are used in low-voltage technology to divide the wires from one cable to wires from other cables, for example in communication technology as telephone distributors, in safety technology for interconnecting hazard alarm systems , in intercom systems .
function
Fixed wiring
The wires to be connected can be placed on the same terminal and thus connected directly to one another. This design is z. B. used to extend or to connect different cables to a small extent in communication technology, but more often in low-voltage technology, z. B. Sub-distributors for proximity sensors in mechanical engineering or electrical installation technology .
Distribution board
In communication technology, however, each wire in a distributor usually has its own terminal. They are then connected to one another with a routing . One then speaks of a marshalling panel. Since the electrical distribution or bundling of communication or data lines is not as simple as for electricity or was not possible at all before the invention of shared telephone lines, the lines must be laid a longer distance separately from each other before they are in the telephone exchange or hub or the like can be bundled. In order to be able to react flexibly to disturbances and changing requirements, marshalling distributors are used.
technology
Different connection techniques are used to connect the wires in the distributor, depending on the distributor design. In older design distributors, the wires were soldered to metal pins or clamped with screw terminals . Cutting terminals are usually used in modern distributors .
example
In communications technology, Deutsche Telekom often used connection and distribution boxes (VVD) to interconnect telephone cables in subscriber installations .
literature
- Manfred Broy, Otto Spaniol (Hrsg.): VDI-Lexikon Informatik und Kommunikationstechnik. 2nd edition, Springer Verlag Berlin Heidelberg, Berlin Heidelberg 1999, ISBN 978-3-642-46846-9 .
- Werner Suss (ed.): Technology and future. New technologies and their significance for society, Westdeutscher Verlag, Berlin 1988, ISBN 978-3-531-12027-0 .
- Peter Fetzer, Bettina Schneider: Lexicon for IT professions. Technical and commercial terms for training, 1st edition, Friedrich Vieweg & Sohn Verlag, Wiesbaden 2005, ISBN 978-3-528-05867-8 .
- Harry Dittrich, Günther Krumm: Elektro-Werkkunde Volume 5 / Professional experience for telecommunications fitters and telecommunications mechanics. 4th edition, Winklers Verlag, Darmstadt, 1971.