Pin Signal Voltage (V)
2 CAN_H +5V
3 CAN_L +5V
4 GND
GND
{% hint style="warning" %} WARNING: Internal Long Range RF CAN is 12V VCC, do not use!
{% endhint %}
I2C Ports - GH-4 Pin
I2C bus for future expansion
Pin Signal
Voltage (V)
1
VCC
+5V
2 I2C1 SCL +3V
3 I2C1 SDA +3V
4 GND
GND
Power Expansion
The power expansion port is located between booms 1 and 2 on the ALTA; it contains three
externally-facing and two internally-facing direct battery connected power expansion
connectors with female socket pin XT-30 type connectors. Each external output is protected
by a 10A automotive mini blade type fuse. The replacement fuse part number is
0297010.WXNV.
The system and fuses are sized to supply 10A or less continuously on each external port
simultaneously; the internal connectors share the same fuse with the external connector J1.
Please note that the output voltage will vary with system battery voltage as the battery
discharges.
{% hint style="warning" %} Use of any other size fuse could cause the aircraft to crash if
shorted. {% endhint %}