OBU Manual
Version 3.0 August 27, 2020 16
documentation of your vehicle. Some windshield coating might hinder the communication
between the OBU and the GPS and GPRS systems.
Position the OBU on the inside of the windshield in a way that:
Figure 8: Right OBU position on windshield
• The driver‘s field of vision is not impaired while
driving,
• the chosen position is not be close any moving
parts e.g. air bag covers,
• the OBU is visible from the outside and is not
hidden by other elements such as windshield
wipers while these are switched off,
• the OBU does not constrain the function of the
dashboard vents,
• the OBU is not positioned on metalized
windscreens section but only on non-metalized
segments of the windshield,
• local laws and regulations as well as
recommendations of the vehicle manufacturer are
complied with.
4.2 Mounting the OBU on the windshield
Attach the adhesive pads to the windscreen at temperatures above 20 °C. The glue of the
adhesive pads reaches its final strength
only after 72 h and if applied at temperatures of 20 °C
applicable, heat the windscreen and the holder’s adherend to appropriate
Clean the selected location on the windshield
carefully with a cleaning
Wait until the surface is dry.
protection films from the adhesive pads.
Attach the holder at the chosen position with the adhesive pads.