Actisense PRO-NDC-1E2K Professional NMEA Multiplexer & Gateway

The Actisense PRO-NDC-1E2K is a RINA Type Approved, intelligent NMEA multiplexer and integrated NMEA 2000 gateway designed for commercial vessels, superyachts, and complex marine refits. Engineered to solve protocol interoperability challenges, the Actisense PRO-NDC-1E2K seamlessly filters, routes, and converts navigation data across NMEA 0183, NMEA 2000, and high-speed Ethernet networks.

Featuring 5 opto-isolated NMEA 0183 inputs, 2 ISO-Drive outputs, a bi-directional serial port, and a dedicated NMEA 2000 port, the Actisense PRO-NDC-1E2K provides robust isolation against ground loops and electrical spikes. With auto-switching redundancy and web-browser configuration, it manages complex onboard telemetry with minimal setup effort.

Managing and routing your NMEA data is straight forward, hassle free using the PRO-NDC-1E2K;

• Auto-switching between inputs to allow for a primary, secondary, tertiary priority input.
• Configurable baud rates to allow 38400 and 4800 baud devices to operate through the same multiplexer.
• Sentence filtering to block unwanted sentences from specific outputs helps to limit bandwidth consumption.
• Easy to configure using the web based UI, no need to manually enter and edit strings of text.
• RINA type approved device means the multiplexer is fit for leisure, commercial and class / type installations.
• Multiple LED’s allow for ‘quick glance’ diagnostics to ensure everything is operating correctly.
• Certified NMEA 2000 device connectivity allows for conversion and output of data onto NMEA 2000 network.
• Bi-directional conversion to and from N2K Network allows for seamless integration between legacy and new equipment.
• NMEA 0183 data streaming over Ethernet enables connectivity to existing Ethernet devices and systems.
• NMEA 2000 data streaming over Ethernet.
• 5 OPTO-Isolated NMEA 0183 inputs and 2 ISO-Drive NMEA 0183 outputs provide protection for all connected instruments.

Key Features of the Actisense PRO-NDC-1E2K

• Multi-Protocol Integration: Combines NMEA 0183 data streams, translates NMEA 2000 PGNs, and streams data via 10/100Base-T Ethernet

• RINA Type Approved: Certified for commercial ships, class-registered vessels, and demanding industrial marine applications

• Opto-Isolation & ISO-Drive: Protects connected instruments against hazardous ground loops with 1500V isolation across all serial interfaces

• Advanced Sentence Filtering & Routing: Limits bandwidth consumption by selectively passing or blocking specific NMEA 0183 sentences per output

• AutoSwitch Redundancy: Automatically failover from primary to backup sensor sources (GPS, heading, wind) if the main signal drops

• Browser-Based Interface: No dedicated software needed—configure baud rates, routing, and network profiles through standard web browsers

BENEFITS

• Quick and easy to install
• Configuration using standard web browser, no PC operating system compatibility issues
• Advanced features solve NMEA 0183 data routing problems
• Fully isolated with ISO-Drive technology for peace of mind
• Easy firmware updates make the device future-proof
• Type Approved (RINA)

Use Case

Multiplexers are typically used to combine multiple instruments’ data output into a smaller number of outputs. As you can’t connect two talkers to one listener directly, a multiplexer allows for the data to be output through one talker connection.

An example of this could be on a commercial vessel with multiple NMEA 0183 GPS, wind, AIS and depth instruments. To get all of this data combined and sent to an NMEA 0183 display, the multiple talker inputs can be combined into one output on the PRO-NDC-1E2K. If the data is needed on an NMEA 2000 network, the 1E2K can convert and output this data onto a connected N2K network thanks to the conversion matrix within the product and the incorporated NMEA2000 connectivity.  

With the PRO-NDC-1E2K, the data can be filtered, passed or blocked and monitored, giving greater flexibility and control over all instrument data. 

The device also carries the ability to stream NMEA data in various formats over Ethernet, meaning it can connect to other existing Ethernet Systems and share vessel data to connected applications or third-party devices.

Technical Specifications