Description
PRO NMEA 0183 Multiplexer - 5 Inputs & 2 ISO-Drive Outputs, Ethernet & Serial Connections
The PRO-NDC-1E is more than just an NMEA 0183 Multiplexer…
Rugged, Robust, type-approved multiplexer with powerful, advanced features enables baud rate adjustments, auto-switching, and sentence-level filtering.
Features:
- Auto-switching between inputs to allow for a primary, secondary, and 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 LEDs allow for ‘quick glance’ diagnostics to ensure everything is operating correctly.
- NMEA 0183 data streaming over Ethernet enables connectivity to existing Ethernet devices and systems.
- 5 OPTO-Isolated NMEA 0183 inputs and 2 ISO-Drive NMEA 0183 outputs provide protection for all connected instruments.
- Dedicated bi-directional Serial port (fully isolated utilising ISO-Drive technology)
- A serial port can be used as an additional input/output
- Ethernet port supports direct and network connections
- NMEA 0183 streaming via Ethernet
- Configurable input and output baud rates
- Allows Data combining and rate conversion
- 2 independent Autoswitch virtual inputs with priority
- Isolation from battery supply
- Diagnostic LED’s
- Optional DIN rail mount
- Type Approved
- Quick and easy to install
- Configuration using a 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
Technical Specifications:
Power Supply
- Input supply voltage - 9 to 35 V DC
- Input supply current - 150mA max @ 12V DC (all outputs @ full drive into 100 ohm loads)
- Input protection - Continuous reverse polarity, transient overvoltage, and ESD protection
- Power indicator - LED, Blue – indicates unit is functioning correctly
- Input Supply connector - Pluggable 2-way screw terminal, 5.08mm pitch (12 to 30 AWG)
NMEA 0183 Port – Listener & Talker
- Number of Listener / Input Ports - 5 isolated NMEA 0183 Listeners
- Number of Talker / Output Ports - 2 isolated NMEA 0183 Talkers
- Compatibility - Fully NMEA 0183, RS422 & RS232 compatible. RS-485 Listener compatible
- Speed/baud rate - 4800 to 38400 bps
- Talker Output Voltage Drive - >= 2.2V (differential) into 100 ohm
- Talker Output Current Drive - 20 mA maximum per output
- Talker Output Protection - Short circuit and ESD
- Talker Data Indicator - LED, Orange (Flashes with data rate)
- Listener Input Voltage Tolerance - -15 V to +15 V continuous, -35 V to +35 V short term (< 1 second)
- Listener Input Protection - Current limited, overdrive protection to 40 VDC, and ESD protection
- Listener Data Indicator - LED, Green (Flashes with data rate)
- Connectors - Pluggable 2/3 way screw terminals, 5.08mm pitch (12 to 30 AWG)
Serial Port
- Compatibility - RS422 & RS232 compatible. RS-485 Listener compatible
- Speed/baud rate - 115200 bps
- Output voltage drive - >= 2.1V (differential) into 100 ohms
- Output current drive - 20 mA max
- Output protection - Short circuit and ESD
- Input voltage tolerance - -15 V to +15 V continuous, -35 V to +35 V short term (< 1 second)
- Input protection - Current limited, overdrive protection to 40 VDC, and ESD protection
- Data Indicators - LED’s: Green = Receive, Orange = Transmit
- Connectors - Pluggable 3-way screw terminals, 5.08mm pitch (12 to 30 AWG)
Ethernet Port
- Host interface - 10/100BaseT, automatic polarity detection
- Supported protocols - TCP/IP for configuration and firmware updating, TCP/IP and UDP for NMEA 0183 comms
- Connector - RJ45
- Indicators - Green – Link, Yellow – 100 Mbps
Isolation
- NMEA 0183 Listener - Uses IsoDriveTM, Hi-Pot tested to 1000V
- NMEA 0183 Talker - Uses IsoDriveTM, Hi-Pot tested to 1000V
- Serial Port - Uses IsoDriveTM, Hi-Pot tested to 1000V
- Ethernet Port - 2kv for 60s
Mechanical
- Housing Material - 316 Stainless Steel
- Dimensions - 139mm (W) x 98mm (H) x 26mm (D)
- Weight - 360g
- Mounting - Bulkhead mount or DIN rail mount (DIN kit 1)
Approvals and Certifications
- EMC - IEC 60945:2002-08, DNVGL-CG-0339:2019 & IACS UR E10 Rev7
- Compass Safe Distance - 300mm
- Type Approval Certificate - RINA
- Operating Temperature - -25 to +70°C
- Storage Temperature - -40 to +85°C
- Relative Humidity (RH) - 95% @ 55°C
- Environmental Protection - IP40
- Guarantee - 3 years (5 Years if registered)
Specifications:
- Cable Length (Feet): N/A
- Data Interface: NMEA 0183
- Box Dimensions: 2"H x 6"W x 10"L WT: 1 lbs
- UPC: 5060998710577
Quick Guide (pdf)
Owner's Manual (pdf)
Brochure (pdf)
Estimate shipping
Refund Policy
Easy Returns
We've taken out the hassle of returning an item so you can shop with confidence. If you need to return an item, we'll provide you with a pre-paid UPS return label that you can print at home. The cost for using the label will be calculated and deducted from your refund.
To start a return, please contact us at sales@theyachtrigger.com Items sent back to us without first requesting a return will not be accepted.
30-Day Return Policy
We have a 30-day return policy, meaning you have 30 days after receiving your item to request a return or exchange.
Eligibility for Returns
To be eligible for a return, your item must be in the same condition that you received it—unworn or unused, including tags, instruction manuals, warranty cards, and in its original packaging. You’ll also need the receipt or proof of purchase.
We reserve the right to refuse returns or assess additional fees at our discretion if:
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The merchandise is missing parts
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The item is not in new condition
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The return is beyond the accepted return dates
Return Shipping & Restocking Fees
Customers are responsible for return shipping.
If you request The Yacht Rigger to provide a shipping tag, the shipping cost will be deducted from your refund. No international return shipping labels will be provided.
A 3% restocking fee will apply.
No returns on final sale items.
Damages and Warranties
Please inspect your order upon receipt and contact us immediately if the item is defective, damaged, or if you received the wrong item.
Most items we sell are covered by manufacturers' warranties. If you experience difficulty with a product, please contact the appropriate manufacturer for assistance and troubleshooting help, or email us at sales@theyachtrigger.com . If your order was received via freight truck, you must notify us within 5 days.
Exceptions / Non-Returnable Items
Certain types of items cannot be returned, such as custom products and special orders. This includes cut line, wire, rope, and similar items that are customized to length. We also do not accept returns for hazardous materials, flammable liquids, or gases. Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to request a return of the item you have. Once the return is accepted, you can make a separate purchase for the new item to ensure it is in stock.
European Union 14-Day Cooling Off Period
If the merchandise is being shipped to the European Union, you have the right to cancel or return your order within 14 days, for any reason and without justification. As above, your item must be in the same condition that you received it—unworn or unused, with tags, instruction manuals, warranty cards, and in its original packaging. You’ll also need the receipt or proof of purchase.
Refunds
We will notify you once we’ve received and inspected your return and inform you if the refund was approved. When processing a refund, no additional transaction fee is incurred; however, the original credit card transaction fee is not refunded.
If approved, you’ll automatically be refunded to your original payment method within 10 business days. Please allow some time for your bank or credit card company to process and post the refund. If more than 15 business days have passed since we’ve approved your return, please contact us at sales@theyachtrigger.com
Return Policy Abuse
We reserve the right to refuse service to anyone suspected of abusing any policy of The Yacht Rigger.





