摘要 |
The invention relates to I/O devices for a data bus, which are configured as series terminals having an I/O electronic means installed therein (so-called bus terminals). The terminals are locatable on commercially available support rails and form there a terminal bus. Incorporated in the bus terminals are, power supply lines. A power supply electrically communicates with the power supply lines, the lines being automatically contacted or slipped therethrough upon location on the support rail.
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