Three channel optical fibre receiver for real time remote lightning impacts notification in wind turbines.

For use with the DL EOLOS K15FO High bandwidth lightning strike counter.

DL EOLOS FO-RCVR-3CH optical fibre receivers can receive the event notification signals generated by up to three DL EOLOS K15FO high bandwidth lightning strike counters. DL EOLOS FO-RCVR-3CH optical fibre receivers have a compac design for direct 35mm DIN rail installation in the wind turbine's electrical cabinet. These devices provide three independent channels with one optical fibre input and one normally open galvanically isolated relay output per channel. The output configuration allows connections to a wide range of models and formats of programmable logic controllers (PLC).


The DL EOLOS FO-RCVR-3CH receives, analyses and decodes the event notification signals generated by the DL EOLOS K15FO counters in real-time. The fast signals received from the DL EOLOS K15FO counters are processed to produce slower event notification pulses at the outputs. DL EOLOS FO-RCVR-3CH receivers operate from a standard 24V power supply.

  • Three independent channels comprising one optical fibre input and one isolated contact output per channel.
  • Isolated contact outputs with one contact in common for easier interface to other modules and systems.
  • Highly robust to electromagnetic interferences.
  • Vibration resistant optical fibre and output contact connectors.
  • Direct insertion into standard 35mm DIN rails.
  • Visual indication of activity and current state.
  • Wide temperature range of -20ºC to 60ºC
Download data sheet

Tested in combination with the DL EOLOS K15FO counter for current impulse immunity at LABELEC, Laboratorio de Ensayos Electrotécnicos (ENAC accreditation number 307/LE681).

The DL EOLOS FO-RCVR-3CH receiver has been tested according to standard UNE-EN 61000-6-2:2006 + ERR:2009 and standard UNE-EN 61000-6-3:2007 + A1:2012.

Designed to comply with RoHS-2 (Diretive 2011/65/EN) regarding the restriction of the use of certain hazardous substances.

Technical specifications
Name Value
DC power input 18V to 28V, 24V recommended 
Supported counters 3 x DL EOLOS K15FO
Optical fibre type POF, SMA connector
Number of outputs 3 normally open relay outputs
Output pulses format Proprietary (**)
Maximum contact current 0,5A
Maximum switched voltage 200V
Maximum switched power 10W
Switch breakdown voltage 250V
Terminals protection IP20
Enclosure material UL94-VO (flame retardant)
Temperature range -20ºC to 60ºC