20
Installer Manual
SATEL
5.8 Connecting the sirens
If high-current output is not used, the 2.2 k
Ω
resistor should be connected between the
output and common terminals.
Fig. 9. The way of connecting sirens. I – siren without own power supply – alarm signaling
triggered by high-current outputs. II - siren with own power supply – alarm signaling triggered
by low-current outputs, the high-current serving as power supply output. The value of
resistors R is 2.2 k
Ω
. In both cases, tamper circuit is connected to zone Z8.
5.9 Connecting power supply
Complete all wiring to the control panel before connecting AC power or the
battery.
Before connecting power supply, insert the clock and RAM backup battery into
its socket on the mainboard.
5.9.1 Main power supply
The control panel requires 18 V AC (±10%) power supply. Using a transformer of at least
40 VA power is recommended.
Do not connect two devices with power supply to one-section transformer.
Before connecting transformer to a circuit from which it will be powered, make
sure the circuit is de-energized.
The transformer should be permanently connected to the 230 V AC mains supply. Before you
make the cabling, familiarize yourself with the electrical installation of the facility. Make sure
that the circuit you choose for powering the control panel will be always alive. The power
supply circuit should be protected with a proper safety device. The owner or user of the alarm
