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The ONWA KC-2W is a specialized bi-directional gateway designed to bridge the gap between two different generations of marine data protocols: NMEA 0183 and NMEA 2000 (N2K). This allows older legacy sensors to communicate with modern multi-function displays (MFDs) and vice versa.
The KC-2W serves as a “translator” for your vessel’s network. It is particularly useful if you have a newer NMEA 2000 chartplotter but want to keep your existing NMEA 0183 sensors (like a depth sounder, wind sensor, or older GPS antenna).
Bi-Directional Conversion: It can take NMEA 0183 sentences and convert them into NMEA 2000 PGNs, or take NMEA 2000 data and output it as NMEA 0183 sentences.
Plug-and-Play N2K: It features a standard NMEA 2000 “Micro-C” drop cable for easy connection to your backbone.
Galvanic Isolation: The unit provides electrical isolation between the two networks, preventing ground loops and protecting your expensive electronics from power surges.
| Feature | KC-2W Technical Data |
| NMEA 0183 Baud Rate | Adjustable: 4800 (Standard) or 38400 (High-Speed/AIS) |
| NMEA 2000 Interface | Standard DeviceNet Micro-C male connector |
| Input Voltage | 9V to 30V DC (via NMEA 2000 backbone or external) |
| LEN (Load Equiv. Number) | 1 (Draws very little power from the N2K network) |
| NMEA 0183 Port | 1 x Input / 1 x Output (Opto-isolated) |
| Waterproofing | IP67 (Fully sealed for engine room or bilge areas) |
| Firmware Updates | Supported via micro-USB or N2K network |
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