The Complementary Devices; Remote Control; Power Supply - Urmet 1068 Série Mode D'emploi

1.3.4

The complementary devices

The complementary devices complete the alarm system by adding functions and simplifying its use.
The main devices of this type are listed below.
1.3.4.1 Keypad
The keypad is a device with multiple functions, including:

authenticating the users on several levels;

totally or partially arming and disarming the alarm system;

signalling alarms saved and potential malfunctions;

activating alarms;

programming the alarm system;

enabling and disabling functions.
The keypad has the advantage, compared to other systems used to arm and disarm the alarm system, of separating the
physical objects that acts (the keypad) from the enabling to do it (the authentication code that the user memorizes),
contributing to a higher level of security. Some keypads have other functions, like the possibility to conduct ambient
listening or establish a remote vocal communication.
Not all the keypads are separate objects. In some cases, the keypad is an integral part of the control panel.
1.3.4.2 Reader
The readers are devices for totally or partially arming and disarming the alarm system. They are typically located outside
of the space protected. The reader has LEDs to signal the status from the signal (armed/disarmed) and potential alarms
or anomalies present.
The two most common types of readers are those with electronic keys and a transponder. In the first, a device with
surface contacts that resembles a key (hence the name) is introduced into the reader, while in the second, a proximity
key is put near the reader. In both cases the reader reads a code which, if recognized, enables the status to be changed
from the system.
They are easier to use than a keypad, but the electronic and proximity keys should be stored carefully and kept separate
from the other security keys (it is the same time of precaution taken with a debit card and its PIN).
1.3.4.3

Remote control

The remote control is a radio device that allows the arming and disarming of the alarm system from a distance. The latest
models have the possibility to personalise the use of some keys, for example to activate or deactivate a commandable
output.
For this type of device, the warnings indicated for the reader are also valid.
1.3.4.4

Power supply

The power supply is used to provide electricity to the system devices, drawing it from the electrical network and
transforming it into low voltage.
The supplementary power supplies are used when those already present, like the one of the control panel, are not
capable of distributing all the electricity necessary or when, due to long connection wires, the correct voltage may not be
reaching the remote device.
The more advanced power supplies make it possible to also connect a local back-up battery.
1.3.4.5 Expansion
The generic term of expansion is used to identify an entire series of devices that can increase the dimension of the
system or add new functions or capacities to it.
DS1068-017 10 LBT20717