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Heart and brain of the AcquaLink® system


The AcquaLink® NavBox is the heart of the AcquaLink® VDO Bus system. It acts as a CPU and signal interface. The NavBox provides a wide range of digital and analog input possibilities. It supports up to four electronic engines (J1939 or NMEA 2000®) or one analogue engine. It also features two VDO Sumlog® paddle wheel sensor and one analogue VDO Windsensor connections, so legacy VDO products can be used and brought to the digital age.

With a dedicated analogue input port it can support the following analogue signal from VDO sensor or from 3rd parties company:

  • Engine oil pressure
  • Engine oil temperature
  • Engine coolant temperature
  • Transmission oil pressure
  • Fresh water / waste water and fuel level
  • Ammeter status
  • Rudder angle
  • Engine frequency

It also features a NMEA 0183 input and output port as well as a buzzer output. All received data are converted and sent to the NMEA 2000® network and to the VDO Bus. This gateway function allows displaying engine, liquid level, pressure, temperature other vital information on any compatible display on the NMEA 2000® network or on designed VDO AcquaLink® gauges or TFT displays.

The configuration of the NavBox can be done by using an AcquaLink® TFT and NavControl or by using the intuitive VDO App (available in 2017).

  • NMEA 2000® certified
  • LED signal status indication
  • Aluminum base plate
  • Front & rear side protection rating IPX4
  • 3x VDO bus lines
  • 1x J1939 CAN bus
  • 1x NMEA 2000® bus
  • 1x VDO Analogue Wind Sensor Input
  • 2x VDO Sumlog® Inputs
  • AMP Super Seal power input
  • 26 pin AUX input (analog signals, NMEA 0183)
  • Operating temperature range -20 °C / +70 °C

Aftermarket package:
NavBox, Power cable & fuse, 26 pin auxillary harness with USB interface termination resistors (3pc.), Screws, Safety instructions, Installation and Operation Manual, Drilling Templates


Article number

12 – 24 V A2C59501979


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