Page 21 of 36    M-21-08 REV.B 
 
26. After the cellular connection is confirmed, verify the sensors are detecting local connectivity 
with the GPS and Charge Controller.  
a.  Tap the menu button, then select “Sensors” from the menu to start scanning for 
connections. 
b.  After approximately 2 minutes, the RS-485 port should highlight green and display 
“Detected EpSolar charge controller!” 
c.  Typically, GPS location lock may take 10 minutes or more.  The time may vary due to 
location, weather, and obstacles around you. (Note: GPS may not be detected when 
indoors.) 
       
27. When your Optio3 Waypoint is correctly connected to your hardware, it will look similar to the 
screenshot below.  The only ports that need to be highlighted green are GPS and RS-485, as 
shown below. 
Note: If your hardware is not detected, check the Optio3 WAYPOINT connections, blue and yellow wires, to 
the Charge Controller.  Also confirm the GPS antenna and 4G antenna connections are tight and attached to 
the correct antenna port as shown in steps 20 and 21.