Fibre-optic I/O system ELW

  • Interference-free point-to-point data transmission, optionally with loop-through (max. 32 devices with addressing or unlimited number without addressing)
  • Addressing of receiving stations in series (max. 16 addresses)
  • Address selection internal (DIP switch) or external (terminals) as an option
  • Optionally with error monitoring at the receiver (including fibre breakage, transmitter failure)
  • Low propagation delay and therefore almost simultaneous availability of signals at all receiving points
  • Easy installation (pluggable screw terminals)
  • Easy commissioning without adjustment, calibration or programming work
  • Our new ELC-4 series is available as an alternative for singlemode fibre
Transmission Unidirectional
Fibre optic connection F-ST | F-SMA
Fibre type Multimode | POF
Optical budget (typ.) 9...15 dB
Optical range ≤ 40 km (dep. on fibre type)
Digital signals (24V DC) 4
Signal delay (latency) ca. 200 ms
Addressing Optional
Error monitoring LED, outputs, relay (opt.)
Power supply 12 V DC | 24 V DC
Dimensions (W x H x D) 22.5 x 100 x 127 mm

The ELW fibre optic I/O system transmits switching, control, clock and synchronisation signals via fibre optic cables. Up to 4 digital signals (24 V DC) can be transmitted unidirectionally via fibre optic cables in a point-to-point connection.

The ELW I/O system ensures interference-free and fast data transmission in harsh industrial environments or in the field. Absolute potential separation fundamentally prevents problems that can arise from potential carryover, interference voltages, etc.

The I/O system components are available with various fibre optic connectors (F-ST, F-SMA) and different fibre types: multimode (G50/125 μm, G62.5/125 μm), POF (990/1000 μm).

No software is required, and no settings or adjustments are necessary. Installation and commissioning are therefore extremely simple.

The digital signals are transmitted by the transmitter as a protocol via fibre optic cables to a receiver. The receiver converts the data and outputs it again as a switching signal.

An optional device variant is available in which the receiver outputs drop out in the event of a fault. Faulty conditions (including fibre breakage, excessive attenuation, transmitter failure) are not indicated visually (no LED).

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