NAPCO Gemini GEM-X255 Installation Instructions Manual page 51

WI1093A 12/01
Zone ANDing, Groups 1–2 (Not for UL installations)
Enable Local Alarm on First Zone "AND" Trip (Not for UL installations)
Up to eight groups of at least two zones each can be "AND"ed, wherein the system will go into alarm only if any two zones of the
group are tripped within a prescribed time. This feature is designed to afford redundant protection for devices, such as glassbreak
detectors, PIRs, etc., that may show a tendency to false under certain conditions. Program each group for any number of Zones 1–96.
All zones in any group must be within the same area. Do not mix 24-Hour Zones and non-24-Hour Zones within the same group. Do
not include a Panic Zone as part of any group.
Note: Any zone that is bypassed or goes into swinger shutdown will automatically disable Zone Anding for the entire group.
If Enable Local Alarm on First Zone "AND" Trip is programmed, a trip on any zone of the group will cause an alarm indication at
the keypad only; there will be no communication to the central station.
Zone Area 1–Zone Area 8 See Areas
Zone Number on Pulse Alarm See Data Formats: Two-Digit Format
Zone Type See Data Formats: Modem Formats
2-Wire, 4-Wire Smoke Detectors See Smoke Detectors
4-Wire Bus Failure See Bus Failure
24-Hour Zone
A zone that provides protection at all times, whether or not the system is armed. If programmed for silent alarm (no Audible
Outputs: Burg Output, Aux. Output, Fire Output or Keypad Sounder on Alarm programmed), the green LED will go out if the zone is
tripped and it will display as a faulted Zone. The zone description will display on the LCD, therefore do not program a "panic" message
for Panic Zones.
If an Audible output is programmed, the keypad will flash the red Armed LED and display "ALARM" followed by the zone
description.
Note: Do not program a Day Zone as a 24-Hour Zone.
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GEM-X255 Installation Instructions
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Page 51