![Actisense PRO NMEA 0183 Buffer - 2 OPTO Inputs, 12 ISO-Drive Outputs, Serial Port, Ethernet Port, Pluggable Screw Terminal [PRO-BUF-2]](https://cdn.shopify.com/s/files/1/0855/3916/0358/files/99820XL.jpg?v=1766097527)
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Description
Actisense PRO NMEA 0183 Buffer - 2 OPTO Inputs, 12 ISO-Drive Outputs, Serial Port, Ethernet Port, Pluggable Screw Terminal [PRO-BUF-2]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,
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)
- Input Protection - Continuous reverse polarity, transient overvoltage, and ESD protection
- Power Indicator - LED, Blue – indicates unit is functioning correctly
- Input Supply Connector - Pluggable 2-way screw terminal, 5.08mm pitch
NMEA 0183 Port – Listener & Talker
- Number of Listener / Input Ports - 2 isolated NMEA 0183 Listeners
- Number of Talker / Output Ports - 12 isolated NMEA 0183 Talkers
- Compatibility - Fully NMEA 0183, RS422 & RS232 compatible. RS-485 Listener compatible
- Speed/baud rate - 4800 to 38400 bps
- Talker Output Voltage Drive - >= 2.2V (differential) into 100 ohm
- Talker Output Current Drive - 20 mA maximum per output
- Talker Output Protection - Short circuit and ESD
- Talker Data Indicator - LED, Orange (Flashes at data rate)
- Listener Input Voltage Tolerance - -15 V to +15 V continuous, -35 V to +35 V short term (< 1 second)
- Listener Input Protection - Current limited, overdrive protection to 40 VDC, and ESD protection
- Listener Data Indicator - LED, Green (Flashes to indicate valid input)
- Connectors - Pluggable 2/3-way screw terminals, 5.08mm pitch
Serial Port
- Compatibility - RS422 & RS232 compatible. RS-485 Listener compatible
- Speed/baud rate - 4800 to 115200 bps
- Output Voltage Drive - >= 2.1V (differential) into 100 ohms
- Output Current Drive - 20 mA max.
- Output Protection - Short circuit and ESD
- Input Voltage Tolerance - -15 V to +15 V continuous, -35 V to +35 V short term (< 1 second)
- Input Protection - Current limited, overdrive protection to 40 VDC, and ESD protection
- Data Indicators - LED’s: Green = Receive, Orange = Transmit
- Connectors - Pluggable 3-way screw terminals, 5.08mm pitch
Ethernet Port
- Host Interface - 10/100BaseT, automatic polarity detection
- Supported Protocols - TCP/IP for configuration and firmware updating, TCP/IP and UDP for NMEA 0183 comms
- Indicators - Green = Link/Activity, Yellow = 100 Mbps
- Connector - RJ45
Isolation
- NMEA 0183 Listener - OPTO-Isolated, Hi-Pot tested to 1000V
- NMEA 0183 Talker - Uses IsoDriveTM, Hi-Pot tested to 1000V
- Serial Port - Uses IsoDriveTM, Hi-Pot tested to 1000V
- Alarm Relay - Hi-Pot tested to 1000V
- Ethernet Port - 2kV for 60s
Mode Inputs
- Input Voltage Range - 0 to 35V DC
- Protection - Transient overvoltage and ESD protection
- Connectors - Pluggable 2-way screw terminals, 5.08mm pitch
Alarm Output
- Contacts - Common, Normally Open and Normally Closed
- Alarm Indicator - LED, Red indicates a valid alarm condition
- Contact Ratings - 35VAC / 50VDC
- Connectors - Pluggable 3-way screw terminals, 5.08mm pitch
Mechanical
- Housing Material - 316 Stainless Steel
- Dimensions - 210mm (W) x 128mm (H) x 27mm (D)
- Weight - 530g
- Mounting - Bulkhead mount or DIN rail mount (DIN kit 1)
Approvals and Certifications
- EMC - IEC 60945:2002-08, DNVGL-CG-0339:2019 & IACS UR E10 Rev7
- Compass Safe Distance - 750mm
- Type Approval Certificate - RINA
- Operating Temperature - -25 to +70°C
- Storage Temperature - -40 to +85°C
- Relative Humidity (RH) - 95% @ 55°C
- Environmental Protection - IP40
- Guarantee - 5 Years
Specifications:
- Data Interface: NMEA 0183
- Box Dimensions: 2"H x 6"W x 10"L WT: 1.5 lbs
- UPC: 5060998710522
Quick Guide (pdf)
Owner's Manual (pdf)
Brochure (pdf)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 1672 reviews
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Product Reviews
★★★★★ 4
It's a good product but not quite a grand slam..
Color: Black, Style: Wireless, Pattern Name: Mouse
I've tried 15+ different mice in the last few years. It would be a bigger number if I wanted to collect them, but I mainly just try to buy the best small to medium-ish ultralight mice in search of my endgame. Won't buy a mouse without seeing reviews first anymore. However, I did main the old wired G502 for a long time before I became a snob. I still like the G502 shape, scroll wheel, and button layout very much despite the fact that it's not going to help me get high scores in aim trainers. The disadvantages caused by the weight and shape are somewhat, but not totally, made up for by the added functionality of the extra buttons, which are also fantastic for productivity. This is an overall solid product with only a few minor flaws that kept me from giving it a perfect score.
The good:
1. Weight is noticeably reduced compared to the wired version.
2. The button layout every G502 fan fawns over is now on a wireless mouse. And it's genuinely a great button layout.
3. It's wireless, obviously.
4. Top-tier sensor.
5. Excellent battery life.
6. Infinite scroll wheel go brrrrr
The bad:
1. Standard black teflon mouse feet. Not the worst I've seen, but Logitech does have a reputation for putting sh*tty feet on great mice. They at least improved this on the Superlight, but even those were still too thin. These aren't bad, but they could be better.
2. Click feel is substantially worse compared to the old G502. Switches are clearly not the same. Honestly would've been tempted to give this mouse 5 stars if it weren't for the clicks. They aren't heavy and ultra tactile like they were before. They're light and standard-feeling now, which isn't a deal-breaker by any stretch, but it's disappointing.
3. Price. You have to get this thing for less than $100 or it simply isn't worth it. It's a step up from the wired G502 but not to the point of it being worth 3 times as much. Even at a $95 sale price, that's still pushing it.
Summary: you're sacrificing click feel and money to improve weight, obtain a nicer scroll wheel, and rid yourself of the atrocity that is the original G502 cable. You're also getting great battery life and excellent, low-latency wireless tech. It's a good mouse, but it's hard to say it's worth triple the amount of its predecessor, especially if you can replace mouse cables. Do not pay more than $100 for this mouse.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 13, 2021
★★★★★ 5
The best mouse is the best mouse
Color: Black, Style: Wireless, Pattern Name: Mouse
I've used the wired in the past and it was my favorite mouse and after using an ASUS wireless mouse for the last 2 years I decided to go back to the Logi G502 only the wireless version this time. Connectivity is great. Disappointed that it doesn't use USB-C to charge the mouse itself, but whatever. This thing is so great and more comfortable than the last mouse I was using. That's a win
All I'm saying is it's great to have this mouse again because it's hard to argue that this is the best mouse for gaming. I can't comment on battery life as I just received it but from the rest of the reviews, its has great battery life.
But upon immediate use, I just can't recommend this mouse enough!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026
★★★★★ 5
Simply a good mouse.
Color: Black, Style: Wireless, Pattern Name: Mouse
Simply a great mouse, Love the layout of the buttons, it feels very natural is use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
★★★★★ 5
Works flawlessly for drafting use...
Color: Black, Style: Wireless, Pattern Name: Mouse
This mouse has been a great upgrade for my setup. The wireless connection is fast and reliable, and I honestly can’t tell the difference from a wired mouse. The sensor is very responsive, and everything feels smooth and precise, especially combined with the Logitech G mouse pad.
I actually use this all day at work for drafting, so precision and comfort really matter, and this mouse delivers on both. I’ve even purchased several more for my drafting team, and everyone has been really happy with it.
I also like the customizable weight system—you can adjust it to feel just right in your hand. Overall it feels solid, well made, and comfortable for long hours of use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
★★★★★ 5
This is the last mouse you will ever buy
Color: Black, Style: Wireless, Pattern Name: Mouse
Just buy it.
What can be said about this mouse that hasn't been said before? This is the perfect mouse, there is no contest. I know it is a bit on the pricier side, but if you need a mouse, just get the cheapest one you can get and start saving to get this one, IT'S THAT GOOD.
The mouse glides over any decent mouse pad, you don't need to get a Logitech one. The shape is perfect for all kinds of grips and the weight system is great for customization.
The led has different brightness levels, including turning it off completely to save more battery, and the keys are just silent and satisfying to press.
Again, this is the best mouse ever, no other mouse will offer a better value for your money than this one. A bit steep, yes, but worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2026
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