AMETEK 1085-291 is a Common Service Module (CSM) card for AMETEK’s AN3100D Series 90B annunciator systems. Cataloged as 1085-291 / AN3100D / REV L, this 24 VDC spare module is designed to replace or maintain the CSM function within the Series 90B AN3100D annunciator lineup. It’s used as a spare/common service module in AMETEK’s AN3100D configurations to support the control electronics of the annunciator system.
