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Can a Fire Alarm Relay (FA) be added to a 900 series power supply (PS902, PS904, PS906, PS914) in the field?

A Fire alarm board can be added to all PS900 series power supplies in the field. 

Order the 900-FA board to install directly to the main board of a PS902. 

All other models require that the 900-FA be installed onto an option boards.  If the power supply in the field already has an option board, order the 900-FA board to install on that option board.  If the power supply in the field does not yet have an option board, order the 900-8F-FA.


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