DA 42 AFM Airplane Description
Doc. No. 7.01.05-E Rev. 8 15-Dec-2017 Page 7 - 59
External Power Socket
The DA 42 has an external 28 Volt DC power socket located on the lower surface of the
fuselage nose section. When external power is connected, the control relay is energized
and the external power comes online.
The socket itself has three pins:
• A large negative pin
• A large positive pin
• A small positive pin
A diode protects the system from reverse polarity.