The Gemini GEMC-RECV RF Receiver is the hardwired interface to Napco's Wireless-Ready FIREWOLF C-Series control panels (see WI1653 for installation instructions). The wireless system is comprised of a compatible GEMC-Series control panel, at least one GEMCRECV receiver, and one or more companion GEMCSeries (Commercial) or GEM-Series (Residential Fire or Burglary only) transmitters. The transmitters may be wireless smoke detectors, space-protection devices, window/door sensors, or other listed devices that report zone status and supervision information to the receiver without the use of wires. There are three differences between the GEM-RECV and GEMC-RECV-Series wireless receivers: 1. The Signal Strength level 5 is adjusted to 3dB greater than the Signal Strength level 4. 2. The green Signal Strength LED is activated at SS3 on the GEMC-RECV instead of SS4 on the GEM-RECV Series. 3. An additional back tamper has been added to the GEMC-RECV to detect removal from the mounting location. The GEMC-RECV can accommodate up to 200 wireless zones. The number of transmitters is limited by the associated Gemini C-Series control panel selected, because only the number of zones supported by the panel can be mapped to transmitters. The receiver is connected to the Gemini C-Series control panel 4-wire Fire bus (or Burglary bus for Burg-only applications). For Fire-only applications or Fire-Burg combination applications, the GEMC-RECV must be connected to the Gemini C-Series control panel Fire bus (see the Gemini C-Series installation instructions WI1653). The receiver monitors each transmitter, updating transmitter status as reports are received, and conveys this information to the control panel. Also monitored is the elapsed time since the last report from each transmitter. If no report of sufficient signal strength is received within a programmed time, a Supervision Failure will result.