FTS 371 USER MANUAL
Flash Technology, LLC
Revision 4 – 9/7/2021
37
Flashhead/Beacon Switch Bank
When the FTS 371 FH is not connected to an FTS 371 FTC controller, the switch bank will be
used to program the beacon for a variety of installation situations.
However when an FTS 371
controller is connected, the flash head switch bank settings will be ignored.
FLASHHEAD/BEACON SWI TCH DEFINITIONS
(When an FTS 371 FTC controller is not connected.)
Table 4.5 – Beacon Switch Position Descriptions
Flash Head Mode
Switch Position
Left
Right
EFF / LEG
EFF - shorter flash duration that uses
less energy
LEG - longer flash duration to resemble an
incandescent flash
ICAO / FAA
ICAO - international air navigation
standards
FAA - domestic air navigation standards
20 FPM / 30 FPM
20FPM - 20 flashes per minute
30FPM - 30 flashes per minute
STEADY
N/A
LEG and 30FPM - When LEG and 30FPM are
moved to the right (ON) position, the flash
head LEDs will be on steady.
MAJOR TROUBLESHOOTING SYMPTOMS
Table 4.6 – Troubleshooting Symptoms and Resolutions
Symptom
Possible Cause in order of Likelihood
All lights fail
1.
Main power failure
2.
External circuit breaker
3.
Blown fuse on the controller’s PCB1
4.
PCB1 Failure
Single light fails
1.
Wiring to beacon is open or short
2.
Individual lighting fixture has failed
Erratic operation
1.
Loose connections
2.
PCB1 Failure
Beacon/marker alarm
1.
Normal if a light fixture is out
2.
PCB1 is configured incorrectly for the connected lighting equipment
