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MP500/4N-8-16 Installation
3.3.4 The subdivision into partitions
There are cases in which it is not necessary to install the alarm system everywhere or, examining the problem from another point of
view, there may be occasions in which it may be preferable to be able to move freely in certain areas while leaving other protect ed. In
other words, being able to partition the existing system, without having to plan two independent ones. The purpose is obviou sly to
increase both security and convenience.
This result can be obtained by configuring the system in
partitions
. The partitions are logical, not physical, groups of detectors, sirens,
keypads, readers etc., each of which can be associated with more than one partition if desired. It is better the remember that when the
system is enables, the detectors are not activated, but rather the control panel is commanded to consider the information received by
them as attempted intrusion if they reflect specific parameters.
Here is a simple example. The magnetic detector always sends a signal to the control panel every time the door is opened. So why
doesn't the alarm go off with the system disabled? This happens because the control panel, during processing, also knows that the
system is disabled and so ignores the signal received. The control panel can be even more intelligent. If a "bell" function was activated
for a specific detector during the system configuration phase (the name used by the MP500 control panels may differ, for example use
the term “gong”, but what matters is what the function does), then when the system is disarmed every time that detector is activated,
opening the door or walking in front of if will cause the control panel to activate a sound. The signal from the magnetic contact is
physically the same, but the way the control panel interprets it changes, producing different results.
Here is how and where partitions can be conveniently used.
A first opportunity was illustrated in
How to protect areas and people
. In that case it was best to make at least two partitions: one for
perimeter protection and the other for trap protection. In this way, at night it is possible to move freely about the house while being
protected from attempted night-time intrusions. When there is no one at home, both the partitions can be armed to raise the level of
security.
Other examples of how the system can be divided into partitions are:
Home with separate garage. In this case three partitions can be configured: perimeter, trap, and garage.
Residence and professional office or shop located in the same building and formally separated from each other. In this case, three
partitions may be configured: residence perimeter, residence and perimeter trap, and office/shop trap.
Office and warehouses: In this care even more partitions can be configured for the offices as well as the warehouses in order to
provide the utmost flexibility in protection without hampering work activities.
As a general rule, when in doubt, lean toward creating one partition more rather than having one less.
Figure 7 - Subdivision into partitions
In the example above, the apartment is a single partition, while the rooms on the ground floor, which are used for other activities,
belong to different partitions. In this way it will be possible to protect the warehouse and offices with the alarm system even when the
store is open.
IMPORTANT!
Be careful about protecting the same areas by detectors belonging to different partitions, because there may be
a risk of false alarms caused by a detector left armed when the user thought all of them had been disarmed.
The coexistence of any partition with the perimeter protection partition is at low risk because of the very nature of its use.
