Series 57 – Indicator

Series 57 – Indicator
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EAO Group

Series 57 – Indicator

To achieve maximum safety in public transport, you need intuitive signage and a high level of reliability. EAO has expanded the successful Series 57 range with a new indicator.

As a pioneer in illuminated pushbuttons and an expert in Human Machine Interfaces (HMIs), EAO continues to set new standards in public transportation. The Series 57 indicators impress with their intuitive visual feedback and high quality. Their modular construction enables them to be easily mounted as status indicators in exterior and interior doors, passenger compartments and toilets in public transportation, as well as public buildings.

The modern design and extra-large illuminated surface ensure that ‘secret-til-lit’ symbols or text are clearly visible even from far away. The Series 57 indicator is available with single or dual-colour illumination in red, yellow, green, blue and white. Flashing and dimming effects are also available.

It shares the same design as other Series 57 products, and therefore offers the same high IP69K front protection.

Mounting is quick and requires no tools, thus saving time and money. This makes the Series 57 indicators the perfect choice for all train, tram or bus manufacturers and operators.

Typical applications

  • Public transportation: rail, tram, bus
  • Access control
  • Emergency call and help points


The materials used comply with the high EAO standards relating to quality, functional safety, service life and design. They are resistant to cleaning agents and are also highly resistant to UV radiation.

Mechanical characteristics

  • Cable, 2-wire with core-end sleeves for the standard single-colour version (wire cross section 0.5 mm²)
  • Cable, 4-wire with core-end sleeves for the dual-colour version and for versions with light effect functions(wire cross section 0.5 mm²)
  • Cable length: 200 mm; 1000 mm; 2000 mm (other lengths upon request)
  • Resistant to impact shocks and vibrations
  • Plug connectors upon request


  • Extra-large illuminated surface
  • Illumination in one or two colours
  • Bright and homogenous illumination
  • High IP69K front protection
  • Optional flashing or dimming effects

Download the full PDF here.

Other EAO Group Documents

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