JSC FORTEZA
FORTEZA-50, 100, 200
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Page 16
Table 8.1
Rx
Tx
Colour
Purpose
Colour
Purpose
white
«+» supply voltage
white
«+» supply
voltage
brown
«-» supply voltage
brown
«-» supply
voltage
yellow
actuating relay contacts
«NC»
green
remote control
«RC»+5…30 V
pink
green
blocking button contacts
«TAMPER»
grey
8.3.2.
The type and rating of the terminator of the security system loop (resistor, condenser and
diode) are determined by the type of the receiving-control device, with which the sensor is
connected. Usually it is a resistor. The rated resistance of this resistor should take into account
the resistance of the actuating relay contacts (≈10 Ohm), the lightning guard circuit (this
resistor - 100 Ohm) and the resistance of the security system loop (depends on the chosen
cable type and its length).
8.3.3
.
The contacts of the Rx blocking button («TAMPER») can be connected to the receiving-
control device with a separate loop. In this case the separate signal indicates the
opening of
the Rx cover. The second variant is to connect the blocking contacts in series with the
actuating relay contacts. In this case an alarm will be registered by one channel of the
receiving-control device at the relay actuation
or
at the opening of the Rx cover.
8.3.4
.
The scheme of the sensor connection using the junction box «JB-15» is shown in Figure 8.4.
The contacts of the blocking button are connected in series with the actuating relay contacts.
The sensor receives a signal from the remote control (RC) when an additional button is
installed at the post. It is possible to install one button for several sensors. In this case the
button pressing checks the operation of all sensors.
The scheme of the sensor connection using the lightning guard unit «LGU-4» is shown in
Figure 8.5.
The scheme of the sensor connection to the supply unit «PSU-24-0,7» is shown in Figure 8.6.
8.3.5.
On the lengthy perimeters it is recommended to use junction boxes «JB-30» (with 30
circuits), «JB-48» (with 48 circuits) and «JB-84» (with 84 circuits) for cable switching.