| 摘要 |
A distributor is provided for selectively connecting with a plurality of voltage sources a plurality of electrical load devices, such as the sensors or actuators of an electrical and mechanical installation. A pair of voltage supply connectors mounted on a housing include first pins that are connected to continuously supply power from a first voltage source to the internal electronics circuitry of the distributor, and second pins that are connected via a jumper switch to selectively connect a second voltage source with the groups of electrical load devices.
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