Designing An Alarm System - Nice HSCU2 Instructions Et Avertissements Pour L'installation Et L'utilisation

MATERIAL
In open spaces (outdoors)
Plasterboard/wooden walls
Brick or concrete walls
Reinforced concrete walls or ceilings
Metal walls
DEVICES
Radio and television transmitters
Variable speed motors
UPS units
Switching power supply units
Other devices on the same frequency, used < 1%
Other devices on the same frequency, used 100%
3

DESIGNING AN ALARM SYSTEM

In order to obtain an alarm system which is perfectly functional and suited to
the task in question, the installation must be designed in advance, before pro-
ceeding with the operations described in this manual . In particular, one must
determine the number, type and location of the sensors in relation to their vari-
ous functions . We advise drawing a plane diagram of the building, specifying
the name and position of each device to be installed . This diagram will be a
great help during system configuration, for instance when one has to memorize
the names of the various devices .
3.1 - How to divide up the home and zones to be protected.
The control panel can be programmed to monitor the entire living area, or only
parts thereof . For this reason, it is important to first divide up the entire area
covered by the system into a maximum of six "intervention zones" (zones A - B
- C - D - E - F), assigning each environment to one of the 6 zones, according
to a suitable and functional logic .
In the case of single buildings, "uniform blocks" is a logic to subdivide the area
to be protected (fig. 1) . Using this logic, a certain zone can be assigned to
individual rooms . This subdivision enables, for example, the alarm to be armed
in the garage (zone E) and in the garden (zone F) while performing activities in
the other rooms at the same time .
Another logic used to subdivide the area to be protected is the one of "con-
centric circles" (fig. 2) where the home can be divided into Internal zones (A, B,
C) and external zones, also called perimeter zones (D, E, F) . With this solution,
for example, possible intrusion attempts in area F can be deterred before they
even start, through voice messages emitted by the sirens, or the siren alarm
can be triggered at the first break-in attempt in zones D-E . Furthermore, the 6
areas available make it possible to subdivide the inhabited rooms by arming the
perimeter alarm (zones D, E, F) the garage (zone C) while performing normal
activities in the other rooms at the same time (zones A, B) .
3.2 - Where to position the alarm system components
To determine the locations of the system components, we recommend refer-
ring to fig. 3 and checking the following conditions:
• Control panel
- Control panels transmit and receive lower power radio signals (within regula-
tory limits), and must therefore be located in such a way as to enable effective
signal propagation . The following are therefore excluded: niches, metal cabi-
nets, reinforced concrete columns and walls; furthermore, the control panel
should not be installed in the vicinity of large metal surfaces or grilles, includ-
ing any such features as are built into the walls .
- The control panel is best located at the centre of the other devices (see par .
2 .1 "Radio transmission inside buildings") .
- The quality of the received signal can be seen on the touchscreen display (see
par . 6 .10 .3 "FIELD METER") and if in doubt, we recommend running this test
before mounting the unit to the wall . With radio devices, even moving them
just a few tens of centimetres can significantly improve their transmission and
reception .
- The keypad must be placed in an accessible position to arm and disarm the
alarm .
- If you wish to use the landline connection, make sure that it is possible to
hook the unit up .
- Mains powered control panels must be located so as to make the mains
hookup possible .
4 – English
TABLE 1
ESTIMATED MAXIMUM RANGE
approx . 100 m
approx . 50 metres, through a maximum of 5 walls
approx . 30 metres, through a maximum of 3 walls
approx . 20 metres, through a maximum of 1 wall or ceiling
not admitted; metal walls constitute virtual total shielding
TABLE 2
TYPE OF DISTURBANCE
continuous
continuous
continuous during phase of use
continuous during phase of use
occasional
continuous (use prohibited)
• Keypads
If there are other entrance points to the home, multiple keypads should be
installed . The keypads may be wall-mounted or handheld, like a normal trans-
mitter .
• Sirens
In isolated houses, we strongly recommend installing at least one outdoors
siren . This should be located in good view (even the sight of it is an effective
deterrent) but in such a way that it cannot be tampered with . Although the
sirens are properly protected for outdoors installation, it is best to install them
out of direct rainfall; the best location is under the gutter line or a terrace/bal-
cony .
The control panel has its own siren, but in large or multi-storey houses, we
recommend adding one or more indoors sirens in the main rooms .
In small apartments or in densely inhabited areas, an outdoors siren may not
be suitable; if so, you can use multiple indoors sirens to increase the deterrent
effect .
• Sensors
Choosing the right type of sensor and positioning them correctly is essential:
the wrong type of sensor, or an incorrectly positioned sensor may fail to detect
an intrusion or generate incorrect alarm signals . Each type of sensor operates
differently, Table 3 explains which sensors to choose .
PROBABILITY OF DISTURBANCE
high, if close
low, only during use
medium, only during use
medium, only during use
very low
very high