Flash Technology
Revision A - 2/13/2020
34
FH 372 WIRING AND GROUNDING
The following procedure describes FH 372 wiring and grounding. Ensure you following the color coded guide on
the terminal block for proper FH operation.
With the flashhead securely mounted to the tower, unfasten the two latches that secure the light engine
(top assembly) to the base.
Lift the light engine assembly to expose the flashhead terminal blocks.
Install the provided ¾” flex conduit & connector on the FH 372 and insert the wires.
Prepare the flashhead power wires (input DC voltage):
o
Remove 6 inches of the outer jacket from each conductor.
Connect the provided FH cable to the terminal strip using a non-flared flat tip screwdriver as follows:
Wire Color (Power/Voltage)
TB Position
Red
DC+
Black
DC-
Green
GND
Wire Color (Communication)
TB Position
Orange
485A
White/Orange
485B
Blue
COM
Bare
SHLD
Ensure all wiring is tucked inside the flashhead base to avoid pinching and ensure the flexible conduit
connector is properly sealed.
Close the flashhead and secure the two latches.
Connect a minimum 8 AWG grounding wire to the pre-installed grounding lug on the Beacon base
exterior. Connect the other end of the wire directly to tower steel, collective buss bar, or customer
preferred location. Ensure the use of an anti-corrosive agent is used on all terminal ends.
NOTE!! Avoid sharp bends in the ground wire and ensure the wire is routed down and away from the flashhead.
