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Division 3.3 Performance of operation controls

United Kingdom

Original text. Later amendments are not shown.

  1. (a)

    The operation of the system shall be simple, appropriate and conform to common human interface standards. The operational state of the system and the connected technical sub devices has to be clearly indicated.

  2. (b)

    The number of operational controls shall be as low as possible and restricted to the required number.

  3. (c)

    Wireless remote controls are not permitted.

  4. (d)

    The ON/OFF switch shall perform and shall be arranged in such a way that inadvertent operation is not possible.

  5. (e)

    The symbols of the operating controls shall have a minimum character height of 4 mm and shall be readable under all conditions that may exist in a wheelhouse.

  6. (f)

    The brilliance and the illumination of the operating controls shall be adjustable to the required value.