PRO NMEA 0183 Buffer - 2 OPTO Inputs, 12 ISO-Drive Outputs, Serial Port, Ethernet Port, Pluggable Screw Terminal
Two OPTO-isolated inputs and twelve ISO-Drive™ isolated outputs. Offering device protection and excellent flexibility, all in one product - the Actisense® PRO-BUF-2, the intelligent, type-approved PRO range buffer.
The PRO-BUF-2 is rugged, with a stainless steel housing, and provides isolation on all inputs and outputs. With two NMEA 0183 inputs, twelve NMEA 0183 outputs, a bi-directional serial port, and an Ethernet port, the PRO-BUF-2 is a perfect solution for larger leisure vessels, commercial shipping, and is a great addition for systems that require type-approved devices.
The PRO-BUF-2 is designed to suit the majority of NMEA 0183 systems and is ready to go ‘out of the box’ by simply hard-wiring the two-mode inputs as required.
The Intelligent NMEA 0183 Buffer's manually configurable basic modes of operation include variations of buffer modes, intelligent auto-switch, and combine modes.
For all other configurations, leaving the mode inputs floating selects the ‘User Configuration Mode’. The web-based configuration tool allows full customisation of the PRO-BUF-2, and is compatible across all popular Operating Systems. Using the web-based configuration tool allows for fine-tuning of the data available on each output.
To make installation quick and simple, the PRO-BUF-2 features 2-part pluggable connectors that allow the use of screw terminals*, and a professional DIN Rail mounting system (DIN Rail not included). The device can also be mounted directly to the bulkhead.
Helpful LEDs indicate power, data in, data out, and the alarm status to aid diagnostics.
Data statistics and load indication via the web tool provide a real-time view of data.
Features:
2 Opto-Isolated inputs
12 ISO-Drive NMEA 0183 outputs
Ethernet Port
Flexible operating modes
Automatic Baud Rate matching on inputs
Alarm output options
Web-based configuration tool
Diagnostic LEDs
Advanced Data Filtering and Routing
2 virtual Autoswitch modules
Data statistics and load indication via a web tool
Designed for a 12 / 24 Volt supply
Future-proofing with easily upgradable firmware
2-part pluggable connector system
Stainless Steel Housing with DIN rail mount option
Type Approved
Flexible configuration options to buffer autoswitch or combine NMEA data
ISO-Drive separates the Listener from the Talker to protect both the PRO-BUF and each connected device.
Fast bi-directional data connection to a monitor and control software application
PRO-BUF can be configured using any web browser on any Operating system
Works out-of-the-box without configuration for basic installations, or can be easily user-configured as required
Relay output is compatible with on-board alarm systems, and the NMEA Alarm sentence can be displayed and actioned on an MFD
Easy to access via network, doesn’t require the device to be moved or have a serial connection to the PC.
A quick visual check gives the user confidence that each input and output is passing data
Features can be utilised to fine-tune data, avoiding data overloads on the outputs and connected listeners
Allows automatic data priority selection between two devices of the same type of data (e.g., GPS)
Shows the NMEA 0183 on each I/O Port, and how frequently it arrives, great for low-level diagnostics
Allows use on large vessel 24V DC power supply systems
Additional features in future firmware revisions are accessed using a simple update process via Actisense Toolkit over Ethernet
Fast installations and supports both screw and screwless terminal types. Ideal for quick diagnostic swapping
Increased durability, ease of installation, and high performance
Can be installed on vessels governed by Class Society Rules
Type Approved (RINA)
Technical Specifications:
Power Supply
Input Supply Voltage - 9 to 35 V DC
Input Supply Current - 325mA max @ 12V DC (all outputs @ full drive into 100 ohm loads)
This product is backed by a 12-month limited warranty, covering defects in materials and workmanship under normal use.
Technical Assistance
Our dedicated support team is available to assist with product setup, operation guidance, and troubleshooting. Contact us via email or phone for prompt service.
Documentation & Downloads
Access essential resources including the user manual, technical specifications, and safety instructions in our online support center.
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FAQs
Find quick answers to common questions
Product & Usage
1. Are KRANK tools built for professional use?
Yes, all our tools are engineered for heavy-duty performance and long-term reliability.
2. Are KRANK tools safe to use for beginners?
Yes, our tools are designed with safety features and easy handling in mind.
3. Can KRANK tools be used in extreme conditions?
Yes, they are tested to perform reliably in demanding environments.
Maintenance & Accessories
1. What maintenance is required for the tools?
Regular cleaning and proper storage are usually enough to keep your tools in top condition.
2. Can replacement parts or accessories be purchased separately?
Yes, we provide compatible parts and add-ons to extend the life of your tools.
3. Do you provide instruction manuals or usage guides?
Every tool comes with a detailed user manual, and digital guides are available online.
Warranty & Guarantee
1. Do the tools come with a warranty?
Every KRANK tool includes a 1-year warranty, with extended options available on select products.
2. How do I register my KRANK tool for warranty coverage?
You can register online using your product serial number for faster support.
3. What does the warranty cover?
It includes defects in materials and workmanship under normal use conditions.
4. Is there an option to extend the warranty?
Yes, extended warranty plans are available for select tools at checkout.
Purchasing & Support
1. How fast is shipping and delivery?
Orders ship within 24 hours, and delivery typically takes 3–5 business days.
2. Do you offer bulk or corporate purchasing options?
Yes, KRANK provides special pricing and packages for business or team orders.
3. How can I contact customer support if I need help?
You can reach our support team by email or phone — we’re here to assist you.