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3 - 12 VC5090 Vehicle Computer Product Reference Guide
Methods of Suspension
VC5090 operation can be suspended in three ways:
•
Manual suspension: the operator presses the Power button when the vehicle computer is on.
•
API suspension: the application requests a suspend via an API call.
•
Time-out suspension: suspends after the vehicle computer is not used for a set amount of time. Tap
>
Settings > Control Panel > Power icon > Power Off tab to set the time-out value.
Critical Suspension
Critical suspension occurs when input power is not available and the UPS is either not installed or is
discharged to a very low state. During critical suspension all circuitry is shutdown except for memory retention
and the real-time clock. During critical suspension the VC5090 is receiving power from the backup battery or
residual power from the UPS. The backup battery retains data for at least 72 hours. Critical suspension occurs
when:
•
a VC5090 without a UPS is in suspend mode and external power is removed.
•
the VC5090 is receiving power from the UPS and the UPS discharges.
Waking the Vehicle Computer
The wakeup conditions define what actions wakeup the vehicle computer. Tap > Settings > Control Panel >
Power icon > Wakeup tab.
These settings are configurable and the factory default settings are subject to change/update.
NOTE Any data previously synchronized with a computer can be restored during the next ActiveSync operation.