Embedded in the RM readers, the RM-4 provides the hardware interface between a magnetic or Wiegand read head and apC or iSTAR hardware.  The RM-4 also provides the inputs and outputs that communicate between door components and apC or iSTAR hardware.  Also available separately in any suitable enclosure, the RM-4 can be used to create the connectivity between other third party readers and the apC or iSTAR when used on a C•CURE 800/8000 system.