PLANET NVR-420 - Manual (Page 57)

6.2.5 Local Map Setting
E-Map monitor is a function that alerts users whenever there is an event
triggered (e.g. motion detected) from a camera with a geographical perspective.
With this function, users can quickly identify which camera has detected an
unusual event and where this event is happening. This function works by
incorporating the event detection function as well as the recording function,
which, as a result, helps users take all the necessary actions when an unusual
event occurs.
To replace the map, click “Browse” button to locate the new map image file from
the local PC and then click “Upload”.
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4-CH H.264 Network Video Recorder with HDMI
User’s Manual of NVR-420