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The 900-2RS option board is used with PS914 power supply to isolate the inputs such as key pads or card readers from the outputs for EL electric exit devices.  The EL draws 16 amp inrush that needs...
Allegion does provides professional support to Architects and Design Professionals.   For information related to specification development and support, Website for Architects and Desig...
When the new PS900 series power supplies were created we did not pursue a version of these option boards.  Need to discuss the specific hardware they are using and requirements to determine the app...