CORNELL D-113S Alarm offers immediate annunciation of any call on the system. Function Continuous Alarm for Single Status Systems. Call Indication Continuous tone. Terminations 2 screw lugs. Finish Satin stainless steel plate. Mounting Flush to fit standard outlet box with single gang plaster ring or surface to fit Wiremold box 5748 or equal. Engineers Specifications The duty station shall be CORNELL Model D-113S. Incoming emergency calls shall be indicated by a continuous tone. The station shall fit on a standard single gang plaster ring or Wiremold 5748 surface box or equal. Minimum depth shall be 1 ¾.