Led Signals

SDO Searchlight: SDO three aspect led searchlight



Segnali LED: Alto SDO, Segnale alto a LED 3 aspetti tipo SDO

The three aspect LED searchlight has been designed to be used in railway signalling schemes where the interlocking circuitry has been designed in accordance with S.Se15, S.Se16, S.Se17 Italian railway standards. The product can be used for main signals (approach departure or warning signals), and is capable of providing three different coloured light beams from one aperture and can be used with the existing halogen lamp signal housing.

The SDO searchlight is very similar to existing systems in use and it consists of a power supply unit (GACS), and an Optical Unit (GOCS).

The overall system consists of three independent power supply and control circuits (fully compliant with EN 50124-1).

The GACS generates the voltage necessary to operate the signal. In addition to producing a light beam in accordance with the specific luminosity and chromaticity characteristics, the GOCS unit also checks integrity of the LED matrices. When more than two LEDs are detected as faulty an alarm is generated and sent to the interlocking system while the current is adapted to stay within the acceptable limits. There is no physical change in the appearance of the signal light aspect.

In terms of power supply and control circuits, the product is compatible with all types of standard relay interlocking currently in use on most signalling schemes, and can be used with static and electro-mechanical flasher units.

Signal power supply voltage 127.5Vac – 165Vac
Working temperature -25 ÷ 70 °C
Nominal absorption 1150mA±5mA adjustable during installation
through switchers
Signal composition GACS
Segnali LED: GACS

Segnali LED: GOCS
Weight of the comlete signal GOCS less than 4.5kg
GACS less than 6kg
MTBF > 200.000 h
Colour emitted RED: Class 1 standard UNI 9296
YELLOW: Class 1 standard UNI 9296
GREEN: Class 1 standard UNI 9296
Light intensity on axis (Diffuser O IS 265) RED: 600cd - 1200cd
YELLOW: 2000cd - 3600cd
GREEN: 1500cd - 2400cd
Diffuser Light requirements conform to RFI specifications with earthing rod to standard IS 265
Housing 825/460, 825/462. Attualmente in esercizio
Safety Dis FS 857-15/D. Currently in use
Safety SIL 4 in compliance with EN 50129