Myto cz Billien OBU 5051, Basic User'S Manual, Page: 5 / 10

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Installing the OBU
1.
Choose the right spot to install the OBU on your vehicle’s windscreen so you do not restrict
your vision when driving. At this spot, the windscreen must not be metallized and there must
be no external parts of the vehicle such as windscreen wipers, spoilers, auxiliary headlamps
and the like on the spot from the outside of the windscreen. Also note that the power cord is
led from the OBU downward and it is not advisable to bend it by force. (Figure 1) The vehicle
driver shall be responsible for the correct placement of the OBU.
2.
Clean the selected installation spot on the vehicle windscreen and the suction cup on the OBU
holder provided with the disposable wet wipe (Figure 2). Be mindful of the environment and
after use dispose of the wipe as normal household waste.
3. Turn the OBU holder so that the two OBU insertion holes on the holder edges are down. Press
the holder with the suction cups firmly onto the windscreen. Pull the holder toward you to
make sure that all suction cups hold properly (Figure 3).
4.
Rotate the OBU so that the cord faces down. Insert the OBU into the holder by first inserting
the two tabs on the bottom of the OBU into the holder holes, and then, by moving the OBU
towards the windscreen, click on the top. Pull the OBU toward you to make sure that it is
properly fixed in the holder (Figure 4).
5.
If your vehicle has a cigarette lighter socket with a smaller diameter, twist the red element at
the end of the plug of the OBU power cord (Figure 5). Store the red element carefully as it will
be required to be returned with the OBU.
6. Plug the power cord plug into the cigarette lighter socket (Figure 6).
A) Main status indicator
The OBU main indicator (A) shows the overall OBU status and its readiness for operation.
If everything is fine and the OBU is ready to operate, this light is a steady green light. If the main
status indicator is flashing green, pay attention to the toll account status indicator. If the red light
comes on, stop driving, contact your SEM customer service line and follow the directions to the
nearest SEM POS.
B) Toll account status indicator
The green light indicates that everything is fine. If the indicator light turns yellow (at the same
time, the main status indicator (A) is flashing green), this indicates a warning about a possible
problem with your toll account. In prepay mode, this is a warning that your prepaid toll balance is
very low and you need to make a credit top up as soon as possible. In the postpay mode, this is
a warning that the amount of toll payable is already approaching the value of the bank guarantee
Using the OBU
The OBU control and signalling elements are illustrated on Figure 7.