Myto cz Billien OBU 5051, Basic User'S Manual, Page: 6 / 10

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C) Power status light
A permanent green light indicates that the battery is fully charged and the OBU is properly
connected to the power supply. A permanent yellow light indicates that the battery is charging;
after charging, the colour turns green. If the light is a permanent red, there is a problem with the
battery - visit the nearest SEM POS to resolve the problem. The power status light flashes to indi-
cate that the OBU is not receiving power. Check that the cigarette lighter socket provides power
and that the power cord is properly connected to the cigarette lighter socket. If everything is fine
and the indicator is still flashing, please visit the nearest SEM POS to solve the problem.
D) Axle number indicators
They permanently show the set number of axles of the vehicle/vehicle combination. The meaning
of the indicators is as follows:
E) Axle setting buttons
They are used to set the current number of axles of the vehicle/vehicle combination.
F) Button to invoke OBU communication
It is intended to invoke OBU communication. Use the button if requested by the SEM POS staff or
the SEM customer service line operator. To initiate a communication, press and hold the button
until all of the axle number indicators (D) flash green and the power status indicator (C) and
the toll account indicator light (B) go out; the OBU will sound an alarm. When communication
is complete, the OBU issues an audible alert and the power status light (C) and the toll account
status indicator (B) displays the result of the communication for 10 seconds - green light in
case of completion of successful communication or red light in case of a communication error.
Subsequently, all the indicators light up according to the current situation.
Two axles
Three axles
Four axles
Five and more axles
8.
provided and its increase should be considered. If the red light comes on, stop driving, contact
your SEM customer service line and follow the directions to the nearest SEM POS.