Hardware Installation Guide - Access Control and Physical ...

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Hardware Installation GuideHardware Installation Guiderevision 1 3Table of ContentsHardware Installation Guidelines ....................................... 131. Inputs, Outputs and Interface Signals ........................................ .......... Power Inputs ........................................ ........................................ ....................... Alarm Inputs ........................................ ........................................ ....................... Reader Inputs/Outputs.

The interchange of the AC NEUTRAL and SAFETY GROUND may result in ground current flowing through the power supply chassis and other ground paths, causing unreliable/improper system operation. The AC LINE input to Hardware power supplies is appropriately fused and switched. Local safety

  Control, Ground