Vivotek NR9682-v2 64-Channel NVR (No HDD) - Manual (Page 124)

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124 - User's Manual
Configuring Google Map and GPS
Since Google Map changed its access policy, using the Google Maps feature requires user
entering a billing API key. Using Maps, Routes, and Places APIs requires an API key.
For applying a Google API key, https://cloud.google.com/maps-platform/maps/
Visit Settings > Emap > Google Map.
Enter the Google API key you previously registered.