User Manual
©2014 DJI. All Rights Reserved.                    11 
1.2 Ground System 
Front View 
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[1]  Power Adapter Port (11V~26V) 
Connect to power adapter or 3S~6S battery to charge built-in battery. When ground system is connected 
with an external power adapter or battery, the built-in battery will disable. Ensure the input voltage range 
does not exceed the operating range of 12~24V. Use supplied charger to charge the battery. 
[2]  UPGRADE Port 
Connect to PC to upgrade firmware through DJI LIGHTBRIDGE Assistant. 
[3]  CONTROL IN Port 
Connect to training port on remote control using remote control cable and rectangle headed training port 
cable. Connect gimbal and aircraft controllers to control both simultaneously. 2.4GHz remote controls 
must be connected to this port with RF switched off to avoid interference. Remote controls working at 
other frequencies cannot be connected to the Control In port using the remote control link.   
[4]  HDMI OUT Port 
Connect to HDMI supported monitor for video viewing. Maximum output rate is 1080i60.  
[5]  USB Port 
Connect to smart device to view video and flight control system OSD using DJI LIGHTBRIDGE App.   
Top View 
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