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12. States and Indications
The OBU has different statuses defined. The buzzer, the technical status LED and the contractual status LED
will be used for signaling status transition. A message on the display gives additional information to the
user. If a severe issue is detected, a support contact information will be displayed.
12.1.
States and Indications: Driver's Guidance
INFORMATION
• WHITE „Message" LED please check display or menu "latest msg" to read the message
• RED "Contractual Status & Technical Status" LED If one of these LEDs turns red, please STOP driving and
call your local service provider to investigate the error
• The images below show the indication with the Message LED being active (White)
12.2.
OK State
The OBU is fully operational. Driving is allowed. Buzzer sound upon transition to OK state: OK beep (1x
medium) LED Indications:
• Technical: OK (Green)
• Contractual: OK (Green)
Messages: only active for incoming generic messages (WHITE)
INFORMATION
For some toll domains the Contractual LED might not be activated. However, this is not an error. It can
indeed mean that you must get to a location with GPS coverage.
ABAB12
CO2 : 0
32t
Euro : 6
0=0 : 5+
If a generic message (zone or service
message) is received, the Message
LED turns White and a message
is displayed. After 15 seconds the
message disappears and can be
retrieved via the submenu "Latest
Msg.".
12.3.
WARNING State
The OBU is ready to be used for the moment, however there is an issue. A message is displayed as an
indication of what might be the root cause. Unless the issue is resolved, the issue might escalate. Buzzer:
Warning Beep (2x long)
LED indications:
• Technical: WARNING (Flashing Green)
• Contractual: OK (Green)
Messages: Status message about root cause (WHITE)
ABAB12
CO2 : 0
32t
Euro : 6
0=0 : 5+
ABAB12
CO2 : 0
32t
Euro : 6
0=0 : 5+
OK
Incoming
message in OK
state
OK
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