Finder 39x082309024 masterinterface solid state relay interface modules finder 392082309024 the finder 3920 masteroutput relay interface modules are aimed at correctly connecting the outputs from plcs to actuators several of the terminals are bridgeable to simplify panel wiring and there are connections for a 16 way jumper link this interface has an integral coil indicator led the relay is retained by a plastic clip which also serves as an easy eject mechanism finder 3920823