Conrad Electronic FAZ 3000-PIR-2, Руководство по эксплуатации

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7. System description
a) Basic functions
The ‘FAZ 3000’ wireless alarm system is suitable for protecting against break-in and fire in
apartments and private homes, and is also suitable for attack and emergency alarms for en-
dangered persons and those requiring assistance. It was developed using the latest microproc-
essor and wireless technology and is relatively simple to install and operate despite its multitude
of features. Configuration is carried out on the ‘FAZ 3000-Z’ alarm base station itself or using
the separately available ‘FAZ 3000-PC’ PC interface.
A freely chosen name (max. 11 characters) can be allocated to each sensor of the wireless
alarm system. In the event of an alarm, the location and the sensor that triggered the alarm can
consequently be identified very quickly.
The wireless technology makes the system very simple to install, as the laborious laying of cables
is almost completely dispensed with.
A maximum of 100 wireless sensors can be operated. 4 additional wired alarm lines and a wired
sabotage line are also available, so that existing wired alarm systems can be replaced with the
modern system.
All sensors (except the smoke detectors), the peripheral devices and the alarm base station
itself are equipped with an integrated sabotage contact, which immediately sets off the alarm
when the casing is opened without authorisation.
The sensors are battery-operated. Due to the particularly low-current switching design, the
battery life of the sensors is up to 3 years.
The alarm base station itself is operated using the supplied power supply. To guarantee op-
eration during a power outage, there is also an integrated emergency power supply (8 AA
batteries).
To increase the accuracy of the alarm base station’s integrated clock, an external DCF receiver
is also available (not supplied).
b) 868 MHz wireless technology
The transmission of all the alarm and status signals from the sensors and the exchange of data
with the peripheral devices takes place over an exceptionally secure, bi-directional radio
connection that operates in the 868 MHz frequency band.
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Bi-directional means that the radio connection between the sensors and base station
operates in both directions. Unlike other systems, this means that the sensor signals
the alarm to the base station and the sensor then receives a form of ‘acknowledg-
ment’ from the base station, so that it knows that its alarm signal has arrived.
If the sensor does not receive a return signal (for example, in the case of short-term
radio interference), then it repeats its alarm signal until it receives an answer from
the base station. This considerably increases the security of the radio transmission,
compared with simple wireless systems.