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Low-Voltage Harness

 Low-Voltage Harness

  • The low-voltage harness connects all essential components of the FADEC system. 
  •  This harness acts as a signal transfer bus interconnecting the electronic control units (ECUs) with aircraft power sources, the ignition switch,
  • speed sensor assembly (SSA), temperature and pressure sensors. 
  • The fuel injector coils and all sensors, except the SSA and fuel pressure and manifold pressure sensors or aircraft mechanic, are hardwired to the low-voltage harness.
  •  This harness transmits sensor inputs to the ECUs through a 50-pin connector. The harness connects to the engine-mounted pressure sensors via cannon plug connectors.

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