JSC FORTEZA FORTEZA-50, 100, 200
Please visit our internet sites: www.forteza.com www.forteza.eu Page 6
5.2.2. The input signal is controlled with the tester on the socket that is marked "TEST" (test
jack).The more TEST the more Rx input signal and vise versa. The detector keeps its operation with
the range of the voltage values too: TEST 0,1-4,8 V.
5.2.3. The light indicator “PROTECTION” provides the indication of the mode operation of the
detector:
-Continuous luminescence means the standby state of the detector;
- The indicator’s switching off for 3 sec means the alarm generation.
5.2.4. During Rx and Tx adjustment on the maximums of the antennas directional diagrams, the
amplifier is transferring from the mode of the adjustment with a big time constant to the mode with a
small time constant by pressing the button “AGC” (automatic gain control) on Rx. In this case an
express setup of the amplifier takes place on the standby state.
5.2.5. A “normally closed” tamper loop is provided to prevent unauthorized opening of the
back panel of the Rx unit. In the operating condition the tamper circuit’s contacts are closed, during
the back panel opening they are broken. The circuits of alarm cables marked “TAMPER”; “TAMPER”
(green and grey wires) are broken too.
5.3. Detector Operation
5.3.1. The detector operation provides the following suite:
-Preparation of the sector
-Signal cables and power supply laying
-Tx and Rx installation
-Detector’s connection (connection of power supply and loops of intruder alarms)
-Alignment of Tx and Rx antennas
-Setup of Rx thresholds.
The principles and the methods of the operations’ performance are given in items 8-10.
5.3.2. The detector has the following operating regimes:
-Standby state (contact breaking)
-Alarm signal (open condition)
-Tamper state of Rx (the contacts of the tamper circuit are opened).
5.3.3. The receiver control device realizes the receipt and the indication of alarms. The detector
operates with the receiver control devices providing the check of the relay contacts.
5.3.4. During the operation the remote control checks the detector efficiency.
The constant voltage 5…30 V for 1…3 sec is realized on the Tx green wire marked “RC”. The
beaming of Tx is interrupted for the time of the signal “RC” operation. Then Rx generates an alarm. In
such a way the signal generation after the signal “RC” confirms the detector’s operation and the
running order of the loop.
The user determines the control periodicity.
5.3.5. Besides there it is necessary to check periodically the technical state of the detector and
its servicing. Periodicity of the checks is given in item 11.
6. DETECTOR CONSTRUCTION
6.1. Rx Construction
6.1.1. The detector consists of separate units (Rx, Tx) placed in dust-, splash-proof enclosures.
6.1.2. Rx Construction and its fastening elements to the support are given in fig. 6.1. The
carrier of the unit is base 4. Radio transparent enclosure 5 is glued to the base with sealing material. In
the heel of the enclosure there are two holes preventing condensed fluid accumulation within the unit.
The access to the controls, adjustment, indication elements and clamps for the connection of the
terminal element is open when the cover 6 is removed. Rx is connected to the receiver control device
with six wires cable 8. Rx is mounted on the support 1 using the bracket 2 and two bucles13. Mounting
provides the rotation of the unit horizontally at angle +65minimum; vertically: upward - at angle 30
minimum, downward –at angle 45minimum (if the bolt 12 is eased). Location and marking of the
clamps, controls, and adjustment and indication elements located under the cover 6 are shown in fig.
6.2.
