ILS Strobe Lighting Systems
DOC-3400-MNL Rev23.doc
(9/22/2021)
Copyright 2007-2021 ITL, LLC Page 52
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A. LEDs and Caution Neon Light
An array of LEDs provides visual feedback relating to the boards current function and
alarm status. Red LEDs are utilized for alarm functions only. Any red LED which is lit
indicates an active alarm condition.
LED
Color
Function
XFR PWR ON
Green ON if primary power is OK
FH SWITCH CLOSED
Green ON if all flash head switches are closed
HIGH VOLTS OK
Green ON if high voltage is detected
DAY MODE
Green ON if board is operating in Day Mode
BLINKING if PEC alarm, or override Mode
WHITE NIGHT MODE
Green ON if board is operating in White Night Mode
BLINKING if PEC alarm, or override Mode
RED NIGHT MODE
Green ON if board is operating in Red Night Mode
BLINKING if PEC alarm, or override Mode
SIDE LIGHT
Green ON if board is in Night Mode and Sidelights are
enabled (see SW5 for configuration)
SYNC PULSE
Yellow ON every time a sync mode pulse is sent, every
1.5-3s
BATTERY MODE
Red
ON if board is operating in battery mode, alarm
indicator
Figure 46: ITL-3400 LEDs Location Detail
Figure 47: ITL-3400 LEDs Table