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Actisense PRO-BUF-2 – Professional NMEA buffer

Actisense PRO-BUF-2 – Professional NMEA buffer

PRO-BUF-2

€732,82 EUR
€916,02 EUR €732,82 EUR
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Actisense PRO-BUF-2 – Intelligent, type-approved NMEA 0183 Buffer

The Actisense PRO-BUF-2 is a smart solution for securely and reliably distributing NMEA 0183 data to multiple onboard devices. This ensures your navigation, communication, and safety systems always receive the correct information – without interference or data loss. The result: more reliable sailing, fewer error messages, and a more peaceful experience on the bridge.

Who is this system made for?

  • Sailing and motor yachts with multiple displays/sensors that need to receive the same data.
  • Work and fishing vessels where robustness and type approval (IEC 60945, IACS E10) are required.
  • Refit projects that combine old and new equipment and require reliable distribution.

Key Features

  • 12 ISO-Drive™ outputs & 2 opto-isolated inputs – powerful distribution with full isolation.
  • Ethernet interface – configuration, diagnostics and UDP/TCP data streaming via web tool.
  • Flexible operating modes – buffer, intelligent autoswitch and combiner; automatic baud rate matching.
  • Diagnostics – LEDs for power/in/out/alarm + real-time statistics and load per port.
  • 316 stainless steel housing – bulkhead or DIN rail mounting; suitable for 12/24 V on-board systems.
  • Type-approved – including IEC 60945 and IACS E10; RINA certificate.

What's in it for you?

  • Reliable distribution: stable data without ground loops or overload.
  • Easy setup: Web-based tool in any browser; no extra software or hassle.
  • Fast troubleshooting: clear LEDs and web statistics per port.
  • Flexibility: Advanced filtering/routing and virtual autoswitch modules.
  • Future-proof: firmware updates via Actisense Toolkit (Ethernet).
Technical specifications

Power supply

Input voltage 9–35 V DC
Current (max.) 325 mA @ 12 V (all outputs @ 100 Ω)
Protection Reverse polarity, transient overvoltage, ESD
Power indicator Blue LED (unit functioning)
Connector 2-pole pluggable screw terminal, 5.08 mm

NMEA 0183 ports

Listeners (entrances) 2x opto-isolated
Talkers (outputs) 12× ISO-Drive™ (isolated)
Compatibility NMEA 0183, RS-422 & RS-232; RS-485 listener compatible
Speed 4800–38400 bps
Talker drive ≥ 2.2 V diff. @ 100 Ω; 20 mA max; short-circuit/ESD protected
Listener tolerance −15..+15 V continuous, −35..+35 V <1 s
Listener protection Current limited; overdrive up to 40 V DC + ESD
LEDs Orange (talker/out), green (listener/in)
Connectors Pluggable 2/3-way screw terminals, 5.08 mm

Serial port

Compatibility RS-422 & RS-232; RS-485 listener compatible
Speed 4800–115200 bps
Output drive ≥ 2.1 V diff. @ 100 Ω; 20 mA max; short-circuit/ESD protected
Input tolerance −15..+15 V continuous, −35..+35 V short-term
LEDs Green (RX), orange (TX)
Connector Pluggable 3-way screw terminal, 5.08 mm

Ethernet

Interface 10/100Base-T, auto-polarity
Protocols TCP/IP (config & firmware), TCP/IP & UDP (NMEA 0183 comms)
LEDs Green (link/activity), yellow (100 Mbps)
Connector RJ45

Insulation

Listener Opto-isolated, Hi-Pot 1000 V
Talker & serial port ISO-Drive™, Hi-Pot 1000 V
Alarm relay Hi-Pot 1000 V
Ethernet 2 kV for 60 s

Control & alarm

Mode inputs 0–35 V DC; transient/ESD protection; 2-way terminal
Alarm output NO/NC + common; 35 VAC / 50 VDC; red LED on alarm
Connector alarm 3-way pluggable screw terminal, 5.08 mm

Mechanical & environmental

Housing Stainless steel 316
Dimensions 210 × 128 × 27 mm
Weight 530 g
Assembly Bulkhead or DIN rail (DIN kit 1)
EMC IEC 60945:2002-08, DNVGL-CG-0339:2019, IACS UR E10 Rev7
Compass distance 750 mm
Type Approval RINA
Temperatures Operation −25 to +70 °C; Storage −40 to +85 °C
Relative humidity 95% @ 55 °C
Protection IP40
Warranty 5 years
Additional features

Configuration & modes

Working modes Buffer, intelligent autoswitch, combine
User Configuration Mode Full fine-tuning per output via web tool
Baud rate matching Automatically on inputs
Virtual auto switch 2 modules; priority between two similar sources (e.g. GPS)

Diagnostics & management

Web diagnostics Statistics & load indication per port (real-time)
LED indicators Power, data-in, data-out, alarm
Alarm integration Relay NO/NC; NMEA alarm sentences visible/actionable on MFD

Installation & hardware

Connectors 2-piece pluggable (screw & screwless) for quick mounting
Power range 12/24 V on-board systems
Housing Stainless steel with DIN rail option; increased durability & performance

Firmware & Future

Firmware updates Via Actisense Toolkit over Ethernet
Downloads
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