ADB Safegate L-854, User Manual

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This section describes the L-854 Type I Radio Control system.
Figure 1: L-854 Radio Control Equipment
The L-854 Type I Radio Control system is used for air-to-ground control of airport lighting facilities. This equipment is
manufactured to FAA specification AC 150/5345-49.
The L-854 Radio Control, consisting of an AM receiver and a Style A decoder, is a completely self-contained system for
controlling lighting functions on an airport from a remote radio transmitter. The transmitter is usually the communications
transmitter in an aircraft.
The Radio Control has two sets of three output relays operated by keying the transmitter in specific sequences. Either set of
relays can operates in either a cumulative fashion, or in single output mode, where only one relay in the set is on at a time. To
power these relays, pilots can set their communications transmitters to the frequency to which the L-854 is tuned.
Three clicks of the mike button within five seconds powers the lighting system on the low (10) brightness setting. Five clicks of
the mike button within five seconds powers the lighting system on the medium (30) brightness setting. Seven clicks of the
mike button within five seconds powers the lighting system on the high (100) brightness setting. The L-854 Radio Control can
be field programmed for three, five, and seven clicks to change the light settings.
The contacts of the relays in the L-854 are for control purposes only. They are rated 3 amps (inductive) and are capable of
operating the coils or power relays. They are not intended to switch lighting-load currents.
2.3 Digital Radio Control
Compliance with Standards
FAA: L-854 AC 150/5345-49 (Current Edition). ETL Certified.
ICAO: Aerodrome Design Manual, Part 5 para. 3.4.6.
FCC: 47 CFR, Part 15:2007 (Class A).
T/C: Transport Canada TP 312 - Aerodromes Standards and Recommended Practices.
Uses
FAA L-854, ICAO, FCC & TP 312 Provides air-to-ground (Type I) radio control of airport lighting systems.
Features
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Unattended all-weather operation
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Simple installation, low cost
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Input power – 120 or 240 VAC, ±10%, 50/60 Hz or 12 or 48 VDC, ±20%
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Output – 3 A relay contact rating, optional 40 A rating available
L-854 Radio Control Equipment
L-854 Radio Control Equipment
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