EAO introduces Series 57 Tri-Color Version

14th July 2022
Sheryl Miles

EAO, Human Machine Interfaces (HMIs) specialist, has extended its Series 57 with a tri-colour illumination version for door opening pushbuttons in public transport that allows for multi-visual feedback indications.

With the tri-colour version of the Series 57 door opening pushbutton, a third colour can now be displayed in the outer feedback ring by the addition of two new LEDs.

These new indicators, along with the standard two feedback rings of individual illumination, make it possible to indicate additional warnings such as ‘door fault’ or a ‘door closing and opening’ by means of independent, flashing LEDs.

Advantages of the Tri-Colour Version:

  • Tri-colour, individual LED illumination of the feedback rings
  • Extra-large Ø 74mm operating area
  • Raised symbols conform to TSI PRM & ADA
  • Consistent look & feel of Series 57 product family

User-friendly features include an extra-large Ø 74mm operating area and two independently illuminated feedback rings that fully comply with EN 14752.

The additional user benefits of the raised symbols (conform to TSI PRM & ADA) make this an ‘all-in-one’ door opening pushbutton. Furthermore, the optical, tactile and acoustic feedback is reliable and intuitive for end users.

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