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10. Explanation of ‘Internal/external
sensor’ and ‘closure group’
a) Internal/external sensor
By assigning a sensor as an internal or an external sensor, you
can determine how each sensor responds:
Intern: N
Intern: N
Intern: N
Intern: N
Intern: N
External sensor; alarm is set off for
‘internally armed’ and
‘externally armed’
Intern: Y
Intern: Y
Intern: Y
Intern: Y
Intern: Y
Internal sensor; alarm is only set off for
‘externally armed’
The alarm base station has two activation options:
1. ‘Internally armed’
The ‘internally armed’ function provides protection to the exterior of a building,
such as, when you are in your house at night, for instance.
Only sensors that are involved in protecting the exterior of the building are
allowed to respond. These include door/window detectors in an apartment
or PIR motion detectors that are mounted externally.
PIR motion detectors located inside the apartment are not allowed to respond
and must therefore be set to ‘
Intern: Y
Intern: Y
Intern: Y
Intern: Y
Intern: Y
’.
2. ‘Externally armed’
The ‘externally armed’ function is used to monitor an unoccupied building
such as a house, when no one is at home, for instance.
The exterior shell of the building is monitored (using door/window detectors,
for example) as well as the indoor areas (provided that internal PIR motion
detectors are installed).
All the sensors set off the alarm, irrespective of how they are assigned.
