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2-light R/G traffic lights
One outside and one inside. Chronos multi-voltage 24–230 V or Apollo at 230 V.
ChronosUse case · Logistics
A safe loading bay
Two traffic lights that talk to each other: one for the driver, one for the forklift operator. They are never green together. Try it yourself: turn the selector, open the bay, load the truck.
The 3D simulation requires WebGL. Below you'll find the sequence described step by step.
ASFSW230 · warehouse side
Emergency
Tap the knob
Green outsideGreen inside
How it works
One principle: never two greens.
Most dock accidents stem from a misunderstanding between the truck driver and the forklift driver. The Stagnoli system removes the misunderstanding: the bay has one status only, visible from both sides.
| Phase | Selector | External traffic light (driver) | Internal traffic light (forklift operator) | Lamp |
|---|---|---|---|---|
| 1 · Approach | Red | Green pull in | Red stay out | Off |
| 2 · Loading | Green | Red do not move the vehicle | Green enter the trailer | On |
| 3 · Closing | Red | Red until the door is closed | Red | Off |
| 4 · Departure | Red | Green drive off | Red | Off |
| Emergency | Mushroom button pressed | Red | Red | — |
Note: the demo shows the operating logic. Connections, interlocks with door and dock leveller and the function of the mushroom button depend on the installation: always refer to the ASFSW230 manual.
The kit
Four components, one supplier.
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ALPDC30 / 50 lamp
30 or 50 W LED, AC 100–277 V, IP65. Alternatively the flexible ALPDF20 (20 W).
Manual
Frequently asked questions
What warehouse managers ask us.
Why two traffic lights and not one?
One talks to the driver, the other to the forklift operator. They are always in opposite states: if the forklift can enter the trailer, the truck must not move, and vice versa. A single traffic light can't say two different things to two people.
What voltage is needed?
The ASFSW230 selector runs on 230 Vac. The traffic lights can be Chronos (24–230 V, detects the voltage by itself) or Apollo in the 230 V version. The dock lights accept 100 to 277 Vac.
Can it be integrated with the door and dock leveller?
Yes, that's the most common case. Interlocks depend on the door and leveller control panels: open a ticket with your system diagram and our technical department will show you the connections.
How much does a system like this consume?
Very little: two 230 V LED traffic lights draw about 5 W per lit light, the selector 4.6 W. The main item is the lamp, only on during loading. Do the maths with the energy impact calculator.
Let's make your bays safe
Tell us how many bays you have, whether the door is already automated and how you power the control panel: we'll send you the kit and the diagram.