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The NSR NND-300 is a marine NMEA distributor and data buffer designed to distribute navigation information from two input sources to eight output channels.
It supports flexible data distribution through two operating configurations: one input to eight outputs or two independent inputs to four outputs each.
The built-in optical-coupled isolator provides electrical isolation and helps protect connected navigation equipment from electrical interference and lightning-induced surges on communication lines.
2 NMEA input channels.
8 NMEA output channels.
Flexible 1×8 and 2×4 distribution modes.
Supports baud rates up to 115,200 bps.
RS-422 communication interface.
Built-in optical isolation.
24 V DC marine power supply.
Compact design for onboard installation.
| Specification | Details |
|---|---|
| Make | NSR (New Sunrise Co., Ltd.) |
| Model | NND-300 |
| Product Name | NMEA Distributor |
| Equipment Type | Marine Navigation Data Distribution Unit |
| Application | Distribution of NMEA navigation data |
| Interface Type | RS-422 |
| Communication Standards | IEC 61162-1, IEC 61162-2, NMEA 0183 |
| Number of Inputs | 2 |
| Number of Outputs | 8 |
| Distribution Mode | 1 Input / 8 Outputs or 2 Inputs / 4 Outputs |
| Baud Rate | 4,800–115,200 bps |
| Default Baud Rate | 4,800 bps |
| Power Supply | DC 24 V (18–36 V) |
| Power Consumption | ≤ 0.25 A @ 24 V DC |
| Power Consumption (Approx.) | ≤ 6 W |
| Isolation | Built-in Optical-Coupled Isolator |
| Protection | Lightning Surge Protection on Data Lines |
| Dimensions (H × W × D) | 41 × 208 × 143.5 mm |
| Operating Temperature | −45°C to +85°C |
| Protection Rating | IP22 |
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