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Duress
If Duress is turned on adding 1 to the first digit of any user code will send a duress
signal to central station (e.g. normal code = 5678 the duress code for this would be
6678). Alternatively Duress 7 may be turned on, if this is done any code programmed
as User number 7 will be the duress code.
Zone Allocation to Areas
Whilst within the zone programming section zones may be allocated to areas. This
may be one single area or multiple (common) areas.
If a zone is allocated to more than one area it is then a common area zone
and the following logic is applied:-
If any area that is assigned to the zone is unset then the zone
is not
active.
If all areas that are assigned to a zone are set then the zone
is
active.
If any area that is assigned to the zone is in exit then the zone is also in exit
(zone type will still apply).
If any area that is assigned to the zone is in entry then the zone is also in
entry (zone type will still apply).
Zones
The control panel is supplied with 8 four wire zones (two wires for zone & two wires for
tamper).
If required this configuration may be programmed for 16 two wire zones. In this case,
two zones should be reserved for global tampers and the remaining 14 zones are then
programmable for the desired zone types.
The control panel zones may also be programmed as 16 EOL (End Of Line resistor)
zones. This configuration gives the highest possible zone wiring security and a
maximum of ten detectors may be wired on to each zone when this option is selected.
Resistors required for EOL operation are supplied with the control panel.
When using EOL zones each detector has a 6K8 resistor in parallel with the alarm
contacts and there is a 4K7 resistor in series with the two zone wires. This gives both
alarm and tamper protection from a single pair of wires. To make full use of this
security feature the 4K7 resistor must be fitted to the furthest most point in the loop.
Page
6
System Overview
GardTec
872
872.qxd 05/11/2003 15:01 Page 6
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