DJI Naza-M - Manual (Page 27)

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V1 Port Description
Please remember the function of each port, which may help you to use the Naza-M efficiently.
Main Controller
A For roll control (left/right)
E For pitch control (front/back)
T For throttle control
R For rudder control
U For Control Mode Switch
X1 For gimbal pitch control Or for gain tuning
X2 For D-Bus (S-Bus/ S-Bus2 compatible) Or for gain tuning Or for IOC switch
X3 For voltage monitor (Connect with VU V-SEN port)
M1 To #1 rotor
M2 To #2 rotor
M3 To #3 rotor
M4 To #4 rotor
M5 To #5 rotor
M6 To #6 rotor
F1 To gimbal roll servo Or to #7 rotor (Upgrade the MC Firmware to V3.10 or above)
F2 To gimbal pitch servo Or to #8 rotor (Upgrade the MC Firmware to V3.10 or above)
LED LED port, for LED wire connection from Versatile Unit
EXP. GPS port, for GPS module wire connection.
(In three-pin ports, pins near the nicks are signal pins.)
Versatile Unit
V-SEN V-SEN port: To the X3 port of the main controller, for monitoring battery voltage and supplying
power
 Orange wire (signal wire) output: ± ±3.3V
 Red wire (power wire) output: 3A@5V
LED LED wire, to LED port of the main controller.
USB port: PC connection for configuration and firmware upgrades.
Optional GPS & Compass
Connect to the EXP. port.