Everything needed for an Installation of Video Systems
The power supplies are providing with voltage and the current that they need. It is necessary to installer depend of the distance.
The Changers Video are use when we have few access in a building or in a residance, for example we have a main door and another secundary one.
The Decoders are used in systems wich have few plates VDS internal and plates in general entries MDS.
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Power Supplies and Decoders