Flash Technology VANGUARD FTS 370i-2, Справочное руководство

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12 Revision A – 05/17/2019 FTS 370i-2 IR
Section 4 - Beacon Operation
4.1 System Overview
The beacon wiring diagrams are shown in Figures 4-1 and 4-2. The standard five conductor
power & alarm cable, shown in figure 4-1, provides connection of the AC line (3 wires) and
alarm monitoring connections (2 wires). The optional ten-conductor cable, shown in Figure 4-2,
provides the same connections and adds connections for the auxiliary control input (2 wires).
The remaining 3 conductors and drain wire are connected to chassis ground.
The AC line may be 120-240VAC 50/60Hz. The dry contact alarm connections are closed when
the beacon is operating normally and no fault is detected. The voltage range for auxiliary control
input is 5 – 30 Volts AC/DC. The beacon flash will be inhibited when voltage within the
specified range is applied to the terminals labeled AUX + and AUX -.
The Controller Core PCB (370i-2 IR 2423800) senses ambient light focused by the light
collector onto the photodiodes and at night flashes the LED beacon.
A GPS antenna and
integrated receiver permit synchronization to other beacons. The Controller Core PCB detects
alarm conditions including beacon failure, photodiode alarm, and synchronization fault. A clear
polycarbonate cover provides access to view the status and alarm LEDs to permit easy
determination of proper operation and fault diagnosis.
The LED Engine assembly contains high-performance LEDs, which illuminate when powered by
the Controller Core PCB. The complete assembly (370i-2 IR 1370480) is easily replaced when
field service is required.
The Power Supply (5150501) and the Surge Suppressors (11000016050) are located in the base
of the beacon.
The power supply generates the proper DC current to the Controller Core PCB
when AC line voltage is applied at its input. The surge suppressors, wired in line with and
directly across the AC Line, provide protection from incoming lightning and transient voltage
induced surges.