Document UT-MT-0778_EN
Page 8 of 39
Edition 11/03/2014
Supersedes edition 02/03/2014
LED INSET THRESHOLD/END LIGHT L
THE04
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
1
GENERAL
L
THE04
inset LED threshold/end light is high intensity, bidirectional or
unidirectional, 12” steady burning type.
These fixtures are intended for use as threshold/end, in order to provide a visual aid
to the moving aircraft.
L
THE04
lights are in compliance with ICAO Annex 14 Vol.1, FAA AC 150/5345-46
(Style 3), IEC TS 61827 (Style 4) and NATO-STANAG 3316.
The fixtures described in this manual are designed to be connected to series circuit,
replacing those equipped with incandescent lamps, fed through standard isolation
transformers connected to CCR with variable current from 2.8 A to 6.6 A.
Location of these fittings shall be in compliance with ICAO - Annex 14, STANAG 3316
and FAA
2
MAIN FEATURES
Each light assembly consists of a removable fixture and a shallow base receptacle.
The fixture is waterproof and designed to withstand aircraft impact and roll-over
loads without damage.
The fixture can be bidirectional type (bidirectional dome equipped with two (FAA) or
three (ICAO) LED modules, operating at the same time or independently) or
unidirectional type (unidirectional dome (FAA) equipped with only one green LED
module).
It is also possible to obtain an unidirectional light from a bidirectional dome choosing
the “S – Screened” option; this configuration includes a bidirectional dome mounting
only one LED module.
Power consumption for ICAO bidirectional fixture is 54 VA (1 or 2 plugs).
Power consumption for FAA bidirectional fixture is 40 VA (1 or 2 plugs), unidirectional
fixture is 22 VA (1 plug).
2.1
REMOVABLE LIGHT UNIT
The removable fixture mainly consists of a dome, an optical assembly, a power
supply/control board, and a lower cover.
