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NDC-4: NMEA Multiplexer
Multiplex or Autoswitch up to 5 NMEA devices to your PC, Chart-plotter, Radar, Autopilot and more, with NMEA 0183 HS compatibility and ISO-Drive.
Next generation Combiner / Multiplexer that has full isolation on all inputs and all outputs. Using the ISO-Drive Actisense technology, ground loops are now a thing of the past. Can Combine or Autoswitch up to 5 devices, plus filter out any problematic or unwanted NMEA sentences.
• Full galvanic Opto-isolation on NMEA 0183 inputs
This Actisense™NMEA Multiplexer / Combiner allows connection of up to five NMEA (National Marine Electronics Association) inputs, and multiplexes / combines or autoswitches them to its two fully isolated NMEA outputs. This approach offers these major advantages:
• Completely removes the need for isolated power supplies - as the NDC-4
creates a full 2500v isolation barrier between it's inputs and
each of it's ISO-Drive outputs
The NDC-4 has two ISO-Drive outputs which are fully compatible with all
standards: NMEA 0183 (RS422), RS485 and PC RS232 ports.
New feature: The autoswitching feature of the NSW-1 has now been added to the NDC-4, making it the single most feature rich Multiplexer available in the marine market. The NDC-4 can either operate in 'Combine mode' as before, or the new 'Autoswitch mode' to behave like the original Actisense NSW-1 Autoswitch product.
Electrical spike protection is provided as standard on all four input channels using opto-isolators. This protects any connected equipment from most system faults; a particularly valuable benefit as equipment requiring the most data, such as a PC or chart plotter, is often the most expensive to repair or replace.
The NDC-4 Data Multiplexer contains intelligent software that manages the multiplexing operation, allowing every input to have a chance of its data reaching the combined NMEA output. Tested up to and beyond a combined 400% loading of the four inputs.