AIS AtoN Type 1
The smart, ruggedized and compact AIS AtoN
SKU Part Number：AMEC-N321-010
The N321 is an internationally type-approved AIS AtoN type 1 with the world’s lowest power consumption. Building on the success of the Mando AIS AtoN system, the N321 offers a full range of advanced features, including the broadcasting of virtual/synthetic AtoN targets, extended alarm functions and impact detection by built-in G sensor. It can integrate lanterns and racons, and a variety of sensors directly.
The ruggedized enclosure is designed for reliable operation in even the most extreme environments from the equator to the Antarctic. Its small form factor ensures easy installation in even the tightest of compartments.
The N321 incorporates 2*NMEA 0183 ports, 3*digital inputs and wake-up port to enable connectivity with lantern and sensors at minimum power consumption. N321 consumes <0.037 Ah/day under FATDMA mode to be the world's most power-saving AIS AtoN type 1.
Virtual/Synthetic AIS AtoN support and outstanding transmission performance with 12.5W.
The smart AIS transceiver performs self checking continuously.
The compact AIS transceiver comes with the world’s smallest form factor and an intuitive user-interface
Designed for marine environment: IP68 waterproof and shock and temperature robustness.
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APPLICABLE STANDARDS |
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ITU-R M.1371-5 (2014) |
EN 301 843-1 V2.2.1: 2017 |
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IALA A-126 Ed.1.5 (2011) |
EN 301 843-2 V2.2.1: 2017 |
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IEC 60945 Ed.4.0 (2002) |
EN 62311: 2020 |
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IEC 62320-2 Ed. 2.0 (2016) |
EN 301 489-1 V2.2.3: 2019 |
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IEC 61108-1 Ed. 2.0 (2003) |
EN 301 489-19 V2.1.1: 2019 |
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IEC 61162-1 Ed. 5.0: 2016 |
EN 303 413 V1.2.1: 2021 |
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IEC 61162-2 Ed. 1.0: 1998 |
EN 62368-1: 2020/A11: 2020 |
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GNSS RECEIVER |
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GNSS Antenna |
Active externa antenna (3.3 V) with gain >20 dB |
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Impedance |
50 ohms |
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Connector type |
TNC type (Female) |
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Receiving channels |
72 channels |
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GNSS receiver type |
GPS/QZSS L1C/A, GLONASS L1OF, BeiDou B1l, Galileo E1B/C, SBAS L1C/A: WAAS, EGNOS, MSAS, GAGAN |
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Horizontal position |
< 2.5 m (CEP, 50 %, 24 hours static, -130 dBm, > 6 SVs) |
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TRANSMITTER PERFORMANCE |
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Access scheme |
FATDMA |
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Tx frequency |
AIS1: 161.975 MHz AIS2: 162.025 MHz |
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Tx frequency range |
156.025 MHz ~ 162.025 MHz |
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Frequency accuracy |
± 500 Hz |
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Tx power |
2 or 5 or 12.5 watt selectable |
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Tx schedule interval |
1 to 1440 minutes |
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Tx message |
Message 6, 8, 12, 14, 21, 25 |
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| VHF | |||||||||||
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VHF Antenna |
External |
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Impedance |
50 ohms |
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Connector Type |
SO-239 (Female) |
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POWER SUPPLY |
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Supply Voltage |
12 V DC ~ 24 V DC nominal (at power connector) |
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Supply Voltage Range |
9.6 V DC ~ 31.2 V DC |
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Peak Current Draw |
3 A at 12 V DC 1.5 A at 24 V DC |
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* Must apply power output with < 100 W Switching adapter or DC power equipment. |
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POWER CONSUMPTION @ 12V DC |
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N321 |
FATDMA ＜ 0.037 Ah/day * |
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N323 |
RATDMA ＜ 0.764 Ah/day * |
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*At 12.5W; transmission scheduled every 3 min |
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| CONFIGURATION / COMMUNICATION INTERFACE | |||||||||||
| External Communication Port | Data Port (NMEA 0183 x 2) | ||||||||||
| External Configuration Port | USB (Configuration and Firmware upgrade) | ||||||||||
| Configuration by VDL | NO | Yes | |||||||||
| PHYSICAL CONNECTORS | |||||||||||
| Power/USB |
Proprietary 7-pin connector for external power supply (2 pins), and USB for configuration/firmware upgrade. |
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| VHF | SO-239 (Female) | ||||||||||
| GPS | TNC Type | ||||||||||
| DATA (18-pin) |
Proprietary 18-pin connector for: • NMEA 0183 #1 (Tx/Rx); (Default baud rate 115200) • NMEA 0183 #2 (Rx only); (Default baud rate 115200) • Isolated digital input x 3 • Wake up input • Wake up output |
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| ENVIRONMENTAL | |||||||||||
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Product Category |
IEC 60945 “Protected” |
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Operating Temperature |
-35℃ ~ +55℃ |
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Storage Temperature |
-35℃ ~ +70℃ |
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Humidity |
93% relative humidity at 40℃ |
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| PHYSICAL | |||||||||||
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Length |
156.6 mm (6.14 inch) |
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Width |
120 mm (4.72 inch) |
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Height |
54 mm (2.13 inch) |
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Weight |
<= 800 g (28 oz); main unit only |
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Case Material |
Aluminum alloy (ADC12) |
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Waterproof |
IP68 |
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| Software Tool | |||||||||||
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Windows-based PC configuration utility (Digital Download) |
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NOTE: The AIS AtoN Configuration Tool software works only when an AMEC AIS AtoN product is physically connected to a PC.
| DESCRIPTION | UPDATE |
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| Declaration of EU Conformity for N321 | 2024/08/30 |
| DESCRIPTION | UPDATE |
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| AIS AtoN Configuration Tool v3.73-T1 | 2025/04/25 |
