The FWC-FSLC-PROG2 is a hand held programming tool; it is not a "device" that is wired to the GEMC-FWSLC. The FWC-FSLC-PROG2 is used to manually confirm or reset a 3-digit "internal device address" number programmed within each device. These three numbers (001-126) are used to identify the device to the system. The FWC-FSLC-PROG2 is powered by one 9V (PP3) battery.