Flash Technology
Revision A - 2/13/2020
19
PCB4 POWER SUPPLY
The power supply (PCB4), located in the FTC 270 unit, converts input power to the correct DC operating voltage for
the other components within the enclosure (12VDC). This does not provide power to any of the system lighting.
A backup battery is connected to PCB4. Under normal operations PCB4 will charge the battery, but in the event of
loss of input power, PCB4 will draw power from the battery. This backup power is not sustainable for an extended
period, but does allow the FTC 270 to send a notification to remote monitoring locations that a power loss event
has occurred. It also prevents the controller boards from power cycling in the event of a short duration power
failure event.
The battery backup does not power the Wi-Fi antenna, which requires 120 VAC to operate.
TB2 DC POWER ROUTING
TB2 is located in the bottom left-hand side of the enclosure and serves the purpose of routing the 12VDC power
from PCB4 to various other components within the controller enclosure. The following components have their
input power routed through TB2:
PCB2 (Tower Controller Board)
PCB6 (Alarm Relay Expansion Board)
Wireless Switch
Cellular Modem
Wi-Fi POE (Power Over Ethernet) Adapter
NOTE! While the display board (PCB1) is powered by the PCB4 power supply, it is wired directly to PCB4 and not
through TB2. PCB1 then routes power to PCB3, and PCB2 routes power to PCB5.
OPTIONAL - PCB6 ALARM RELAY EXPANSION BOARD
The display board (PCB1) comes factory equipped with six dry contact alarm relays (DAY ALARM, NIGHT ALARM,
MAKRER ALARM, PHOTODIODE ALARM, GPS SYNC ALARM and COMM ALARM). The Optional Relay Expansion
Boards (PCB6) allows up to 28 additional dry contact alarm points for greater insight into the cause of each alarm.
Each Relay Expansion Board comes equipped with 14 dry contacts. The FTC 270 controller can accept up to two of
the Relay Expansion Boards.
OPTIONAL – WIRELESS NETWORK CONNECTIONS
The FTC 270 may be supplied with a cellular modem option, which allows for remote access to the lighting system.
It may also be supplied with a Wi-Fi Antenna which creates a local Wi-Fi access point for onsite wireless access to
the lighting system. If either of these options are included in the FTC 270, then a 5-port gigabit Ethernet switch will
also be included to provide the needed networking hardware to allow PCB3 to communicate with multiple devices.
