NBF-2 NMEA Buffer
The NBF-2 has now been replaced with our new NBF-3 buffer.
The Actisense NBF-2 galvanically opto-isolates and buffers NMEA 0183 data to drive multiple NMEA devices, such as chart plotters and radars. It is ideal for safely interfacing an on-board PC to NMEA 0183 equipment on a vessel.
The Actisense NBF-2 galvanically opto-isolates and buffers NMEA 0183 data to drive multiple NMEA devices, such as chart plotters and radars. It is ideal for safely interfacing an on-board PC to NMEA 0183 equipment on a vessel.

Designed for use with all NMEA 0183 input and output types (RS422, RS485 and RS232), the NBF-2 produces an amplified copy on each of its isolated outputs.

Galvanic isolation on the OPTO input and the ISO-Drive outputs ensures protection for both the source talker device and all listening devices, exceeding the NMEA 0183 specifications.

The NBF-2-GX version has seven glands which offer's the option to easily seal more connections.

The NBF-2 and NBF-2-GX are invaluable in creating a safe and flexible NMEA data network.

Benefits of the NBF-2:

Note: The NBF-2 and NBF-2-GX are being phased out of production and are likely to be unavailable from mid-2014.

The NBF-3 is the latest and enhanced version of the Actisense NMEA Buffer.
Geek Mode
  • AIS compatible
  • Protects connected devices
  • Simple installation
  • Seal more connections with the NBF-2-GX
  • Can be used to isolated between two systems

 

Technical Specification

Supply voltage

 

10

35

V

Supply current

Supply voltage 12v (Min. load, Max. load)

44

100

mA

 

Supply voltage 24v (Min. load, Max. load)

25

49

mA

Opto-isolated in

 

 

 

 

Input voltage tolerance

Continuous operation

-15

+15

V

 

Short term operation (< 1 sec)

-35

+35

V

Differential input voltage

Required level for data to be detected

1.8

-

V

Input current

 

-

2

mA

Input to ground

Full Galvanic Opto-isolation protection

-

2500

V

ISO-Drive out

NMEA 0183 version 1-3 & PC Serial

 

 

 

Output current

RS485 / RS422 / RS232 compatible

-

22

mA

Differential output voltage

100 ohm load

2.1

-

V

Output to Ground

Full Galvanic isolation protection

-

1500

V

Output to Output

Full Galvanic isolation protection

-

1500

V

General

 

 

 

 

Baud rate

 

-

115200

bps

Ambient temperature

 

-20

+70

°C

Guarantee

Actisense guarantee

-

3

Years

M12 gland clamping range

Cable diameters accommodated (NBF-2-GX) 

6.5 

mm 

M16 gland clamping range

Cable diameters accommodated 

4.5 

10 

mm 

NBF-2 NMEA Buffer
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Testimonial
"With a staff of some of the sharpest engineering minds in the industry and a relentless drive to innovate, Actisense has achieved a standard of quality and reliability most companies only hope for. Their innovative designs and top-quality manufacturing result in a broad range of solutions infused with durability and value. We are proud to share in their success and without hesitation, recommend Actisense solutions to all of our customers."
Peter Braffitt, General Manager, GEMECO Marine Accessories
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