JX2300 / JX2360 Airfield Flash Control Box

The JX2300 and JX2360 are the control cabinet pair at the heart of Flashelek's runway and heliport Sequential Flash Lamp Systems. They are the electronics that translate an ATC tower command into a precisely timed sequence of flash pulses across an array of approach light heads, and the selection between them is purely an interface question. The JX2300 uses a 4–20 mA current-loop signal at 24 V or 48 V DC — the hardwired protocol native to analogue airfield control systems and still the majority installation at general aviation aerodromes and smaller regional airports. It is managed via the JX5300 Monitor Controller. The JX2360 is the digital-era variant: it accepts either simple dry-contact closure or an RS485 J-Bus (Modbus) bus command, and communicates back to the JX5600 Monitor Controller over a UDP Ethernet link. The JX5600 exposes an intranet web interface and individual lamp-hour counters across every position in the array, shifting maintenance from calendar-based lamp replacement to data-driven scheduling — directly reducing AOG risk from SFLS outages. Both boxes support the same flash-period configurations (0.5 s, 1 s, 1.5 s, or 2 s), inter-flash delays (14 ms, 67 ms, 267 ms), and three-level brightness control (100% day, 10% dusk, 3% night) via the JX5600 panel, which draws under 100 W from a standard 230 V AC supply. J-Bus line length extends to 1,000 m before amplification is required. The system ships with three J-Bus line terminator loads per controller. French STNA approval, ICAO Annex 14 compliance, and FAA certification make these units acceptable to virtually every civil aviation authority filing.