Testing operation
Power or Ignition test
Before testing the connection to power and to the ignition make sure you have properly carried out the in-
stallation.
1. Check all connections to your LINK 640 device (wires, fuses etc.).
2. Turn off the ignition.
The green LED should be off and then go on every 3 seconds.
3. Turn on the ignition.
The green LED should be on and then go off every 3 seconds. If the device is already activated, the
green LED should be on all the time.
If the LED does not perform as described, monitor the LEDs for diagnostics .
Mobile network reception test
For this test, you may need to move the vehicle to a location with a clear view of the sky, to make sure that
you have adequate GNSS and mobile network reception.
For this test put your LINK 640 device in the position where you want to fix it.
1. Turn on the ignition.
2. Look at the yellow LED. It should be on and then go off every 3 seconds.
As soon as the device has established a connection to WEBFLEET the yellow LED stays on all the time.
If the LED keeps flashing for longer than 10 minutes, monitor the LEDs for diagnostics .
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