Airport Systems
6.If you have a Dual (Red/White) System, the Red Lights should be OFF.
7.If you have a Catenary System, Verify Catenary flash timing.
(a)All Flashhead on Middle Level should flash together.
(b)All Flashheads on Top Level should flash together
(c)All Flashheads on Bottom Level should flash together.
(d)Middle Level Flashheads should flash first.
(e)Top Level Flashheads should flash second (1/13 second later)
(f)Bottom Level Flashheads should flash third (2/13 second after Top)
(g)Sequence should repeat every 1 second. (Time between Bottom and Middle flash is 10/13 seconds).
2.6.4.2Twilight Mode:
1.Set MODE Switch to TWILIGHT.
2.Verify Day and Night mode LEDs (DS25 and DS27 respectively Figure
3.After 6 seconds, Verify all Flashheads are flashing in sync and in Twilight mode (medium brightness).
4.Verify that the Flashhead Status LED for each Flashhead on the tower is lit green (including any AOL). Unused Flashhead status LEDs shall be off. (DS1 - DS24: Figure
5.Verify relay status LEDs DS29 - DS32 are lit green, and DS33 is off. (Figure
6.If you have a Dual (Red/White) System, the Red Lights should be OFF.
2.6.4.3Night Mode
1.Set MODE Switch to NIGHT.
2.Verify Day and Twilight mode LEDs (DS25 and DS26 respectively (Figure
3.Verify that the Flashhead Status LED for each Flashhead on the tower is lit green (including any AOL). Unused Flashhead status LEDs shall be off. (DS1 - DS24: Figure
4.Verify relay status LEDs
5.If you have a
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