User's Guide

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Astus QC25 - Hardware user Guide 6 / 13
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and proprietary to Astus Inc. Any distribution or
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4 Installation
4.1 Safety and General Considerations
1. Do not connect the QC25 directly to the vehicle's OBD2 port or install the product in a
location if it interferes with the driving or safety of the driver and passengers.
2. The QC25 must be kept away from any source of heat, high humidity or possible liquid spills
(eg coffee). The ambient temperature should be in the range -20 Celsius to +60 Celsius
when the QC25 is equipped with a battery and -40 Celsius to +70 Celsius without the
battery.
3. Do not fix the QC25 on harnesses, hoses, pipes or heater ducts.
4. Do not fix the QC25 near radios or the vehicle’s audio system where it can create
interferences.
5. For optimal GPS reception, position the QC25 so that its GPS antenna (Figure 1) faces the
sky. Avoid metal surfaces above the antenna.
4.2 Connecting directly to the vehicle’s OBD2 port
1. Make sure the vehicle’s engine is turned OFF (vehicle’s key removed from the keyhole) for
at least 2 minutes.
2. Connect the QC25 to the vehicle’s OBD2 port.
Figure 3 - OBD2 from vehicle (example)