The GEMC-NAC7S NAC Extender is used with the Gemini C-Series small enclosures. The Notification Appliance Circuit (NAC's) is a circuit or path directly connected to a notification appliance, i.e. any audible, tactile or visual signal, or any combination thereof, employed to indicate a fire, supervisory or trouble conditions. When used with a Gemini C-Series control panel, the GEMC-NAC7S functions as if it were two separate modules, an External Output ("Fire NAC Extender" board) with 7 of the 8 outputs utilized (the first 4 supervised) and a 4-Zone EZM (Expansion Zone Module) used to send the status of a device (AC ON/OFF, BATTERY GOOD/TBL, GROUND FAULT and TAMPER) to the C-Series control panel.
Features:
- 4-Supervised Outputs suitable as 24V, maximum 2A
- 3-Unsupervised Form-C Dry relay outputs activated by a programmed event generated by the Gemini C-Series control panel (the 8th output is not used)
- One supervised, isolated GEMC-Remote Bus interface
- One normally-closed (N/C) housing tamper input, identified by trouble on dedicated integral EZM zone
- Isolated integral ground-fault detection circuit (detects 1.25KΩ to ground or less)
- One isolated input (terminals 1-2) to synchronize "Smart" outputs (Listed Wheelock or System Sensor horns/strobes) with other outputs from the C-Series motherboard or other GEMC-NACXX devices
- Power supply contains integral battery charger capable of charging up to 4 pairs of 7AH / 7.5AH / 8AH sealed lead acid or gel type 12V batteries. Note: All batteries must be of the same AH rating.
- The system monitors for low battery, no battery, brownout and monitors battery charging circuit voltage, identified by battery trouble on dedicated integral EZM zone
- Remote bus interface and two Inputs are isolated, thus allowing for separate ground fault detection and annunciation
- Allows audible notification appliances (horns) to be silenced while visual notification appliances (strobes) continue to operate
- Input allows synchronized Wheelock/System Sensor operation between the motherboard or other C-Series
- NAC circuits, allowing for multiple NAC circuits to be used within the same area
- Each of the 4 NAC circuits are individually supervised for opens or shorts, and will annunciate and report separately
- Solid State over-current protection on the four NAC's
