Group Layouts The following pictures show the layout of the PMC-R power connections and the electrical hardware involved. There is a chart to show where the isolators are to be placed as well as all the power supplies. Generally the power groups across the face are the same size; the two groups at each end may be different.. The Server must be powered by its own power supply; there must be an isolation adapter located on the first face shield between the shield PMC-R and the Server PMC-R. To ensure compliance with the MSHA Intrinsically Safe approval, power supplies and isolators should be installed as shown in the print.
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