Bedienungsanleitung Satel PERFECTA 32-WRL (Seite 9 von 27) (Englisch)

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SATEL PERFECTA 7

6.1 Installation plan

The installation must be preceded by preparation of a plan of the security alarm system. It is

advisable to draw up a sketch of the premises and mark on it all the devices that are to be

included in the alarm system: control panel, keypads, detectors, sirens, expansion modules

etc. Thick walls, metal partitions, etc. decrease the range of GSM signal. Keep this in mind

when choosing the installation place for control panel. The control panel and other alarm

system components should be installed within the protected area.

6.2 Estimation of the system current consumption

At the security system planning stage you should sum up the currents consumed by all

devices included in the system (control panel mainboard, keypads, expansion modules,

detectors, sirens, etc.). The calculation should take into account the battery charging current.

If the sum of currents exceeds the maximum output current of the control panel power

supply, expander with power supply or an additional power supply unit should be used.

The sum of currents consumed by the devices connected to the power supply unit (expander

with power supply) must not exceed the power supply output current.

If you plan to connect devices to particular power outputs (of the control panel, expander with

power supply, etc.), remember that the sum of currents consumed by these devices must not

exceed the maximum current carrying capacity of those outputs.

6.3 Cabling

It is recommended that an unshielded non-twisted cable be used for making electric

connections between devices included in the system.

If you use the twisted-pair type of cable, remember that CLK (clock) and DTA (data)

signals must not be sent through one pair of twisted conductors.

Select cross-section of the power supply wires so that the supply voltage drop between the

power supply and the supplied device should not exceed 1 V as against the output voltage.

In order to guarantee correct functioning of the system components it is important that

resistance and capacitance of the signal wires be as low as possible. When the distances

between the devices are greater, several wires connected in parallel may have to be used for

each signal, in order to reduce conductor resistance. This, however, may lead in

consequence to an increase in conductor capacitance. Too high resistance or capacitance of

the cables connecting the control panel to keypads or expansion modules can prevent the

devices from working correctly (e.g. the control panel will be unable to identify devices,

absence of devices will be reported, etc.). When selecting the length of cables, follow

recommendations set out in sections on connection of particular types of devices.

Avoid running the cables in parallel to or in close vicinity of the 230 V AC wires, as this may

result in malfunctioning of the system.

6.4 Installation of control panel

The control panel mainboard contains electronic components sensitive to

electric charges.

Before connecting the mainboard to power supply source (battery, alternating

voltage from transformer), you must first complete all the installation work with

hardwired devices (connection of keypads, expansion modules, detectors etc.).

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