NBF-3 NMEA 0183 Buffer NMEA 0183 Buffer

Safely drive up to six NMEA Listeners, with power distribution for the connected Talker.

The NBF-3 NMEA Buffer isolates and buffers NMEA 0183 data, with the power to drive multiple devices. Able to distribute up to six identical, amplified streams of data from one source, the NMEA signals are buffered to ensure that each Listener receives the data at the required voltage levels, providing consistent data quality.

Where To Buy

NMEA Buffer

Isolation on the input and outputs ensures the protection of the source Talker device and Listening devices.

ISO-Drive™ technology on the outputs and OPTOisolation on the input enables you to connect the NBF-3 with complete peace of mind.

The NBF-3 has the addition of power distribution for the NMEA Talker. By having power and data from the same source, cabling requirements are reduced, and installation is made simpler.

Ordering Information

(Part number/s)

  • NBF-3

Looking for an even more powerful NMEA 0183 buffer? Discover the PRO-BUF-1

FEATURES

  • One OPTO-isolated input Six ISO-DriveTM outputs
  • Compatible with RS422, RS232 and RS485 connections
  • Pluggable screw terminals
  • Power and input indicator LEDs
  • Power feed (500 mA) for single cable installations to the NMEA Talker
  • Optional DIN rail mount Up to 115200 baud
  • Outputs automatically track the input baud rate
  • Protocol independent

BENEFITS

  • AIS compatible
  • Protects connected devices
  • Simple installation

 

Power Supply
Input Supply Voltage 10 to 35V DC
Input Supply Current (NBF-3 only) 100mA max @ 12V DC (all outputs @ full drive into 100Ω loads)
Input Supply Connector Pluggable 2 way screw terminal, 3.5mm pitch
Input Protection (NBF-3 only) Continuous reverse polarity and ESD protection
Power Indicator LED, blue (lit constantly indicates correct operation when input supply connected)
Listener Power Output Voltage 10 to 35V DC derived directly from the input supply voltage
Listener Power Output Current 500mA max @ <= 30°C (see note)* (PTC self-resettable fuse)
Listener Power Output Connector

 

Pluggable 2 way screw terminal, 3.5mm pitch

 

NMEA 0183 Port – Listener & Talkers
Number of Listener / Input Ports One isolated NMEA 0183 Listener
Number of Talker / Output Ports Six isolated NMEA 0183 Talkers
Compatibility Fully NMEA 0183, RS422 & RS232 compatible. RS485 Listener compatible
Galvanic Isolation 2500V input to ground 1500V output to ground using ISO-Drive
Speed / Baud Rate 4800 to 115200 bps
Talker Output Voltage Drive >= 2.1V (differential) into 100Ω
Talker Output Current Drive 20mA max.
Talker Output Protection Short circuit and ESD
Listener Input Voltage Tolerance -15V to +15V continuous, -35V to +35V short term (<1 second)
Listener Input Protection Current limited, overdrive protection to 40V DC and ESD protection
Listener Data Indicator LED, green (flashes at data rate)
Connectors

 

Pluggable 2-way screw terminals, 3.5mm pitch

 

Approvals and Certifications
EMC EN 60945 (sections 9 & 10)
Environmental Protection IP66
Operating Temperature -20°C to +70°C
Storage Temperature

 

-40°C to +85°C

 

Mechanical
Housing Material Polycarbonate
Protective Lid Material Polycarbonate
Sealing Materials Expanded silicone foam gasket, closed cell polyurethane splash guard and ePTFE waterproof vent
Dimensions 127mm (L) x 106mm (W) x 48mm (H)
Weight 210g
Mounting 4 x 3.5mm lugs to allow panel mount with self tapping screws (included), optional DIN rail mount available on request.
  • One OPTO-isolated input and Six ISO-Drive™ outputs for safe connections
  • Compatible with all NMEA 0183 devices
  • Pluggable screw terminals and DIN Rail mount provide quick and easy installation
  • Power and input indicator LEDs to aid network diagnosis
  • Power feed for single cable installations to the NMEA Talker helps reduce cabling requirements

 

NETWORK DIAGRAM

Here are some Frequently Asked Questions about the NBF-3.

Need more help? Visit our Support Centre here.

Actisense is dedicated to providing up-to-date software and resources for our products. Here are some useful tools and documentation to help you make the most of your product:

Isolation on the input and outputs ensures the protection of the source Talker device and Listening devices.

ISO-Drive™ technology on the outputs and OPTOisolation on the input enables you to connect the NBF-3 with complete peace of mind.

The NBF-3 has the addition of power distribution for the NMEA Talker. By having power and data from the same source, cabling requirements are reduced, and installation is made simpler.

Ordering Information

(Part number/s)

  • NBF-3

Looking for an even more powerful NMEA 0183 buffer? Discover the PRO-BUF-1

FEATURES

  • One OPTO-isolated input Six ISO-DriveTM outputs
  • Compatible with RS422, RS232 and RS485 connections
  • Pluggable screw terminals
  • Power and input indicator LEDs
  • Power feed (500 mA) for single cable installations to the NMEA Talker
  • Optional DIN rail mount Up to 115200 baud
  • Outputs automatically track the input baud rate
  • Protocol independent

BENEFITS

  • AIS compatible
  • Protects connected devices
  • Simple installation

 

Power Supply
Input Supply Voltage 10 to 35V DC
Input Supply Current (NBF-3 only) 100mA max @ 12V DC (all outputs @ full drive into 100Ω loads)
Input Supply Connector Pluggable 2 way screw terminal, 3.5mm pitch
Input Protection (NBF-3 only) Continuous reverse polarity and ESD protection
Power Indicator LED, blue (lit constantly indicates correct operation when input supply connected)
Listener Power Output Voltage 10 to 35V DC derived directly from the input supply voltage
Listener Power Output Current 500mA max @ <= 30°C (see note)* (PTC self-resettable fuse)
Listener Power Output Connector

 

Pluggable 2 way screw terminal, 3.5mm pitch

 

NMEA 0183 Port – Listener & Talkers
Number of Listener / Input Ports One isolated NMEA 0183 Listener
Number of Talker / Output Ports Six isolated NMEA 0183 Talkers
Compatibility Fully NMEA 0183, RS422 & RS232 compatible. RS485 Listener compatible
Galvanic Isolation 2500V input to ground 1500V output to ground using ISO-Drive
Speed / Baud Rate 4800 to 115200 bps
Talker Output Voltage Drive >= 2.1V (differential) into 100Ω
Talker Output Current Drive 20mA max.
Talker Output Protection Short circuit and ESD
Listener Input Voltage Tolerance -15V to +15V continuous, -35V to +35V short term (<1 second)
Listener Input Protection Current limited, overdrive protection to 40V DC and ESD protection
Listener Data Indicator LED, green (flashes at data rate)
Connectors

 

Pluggable 2-way screw terminals, 3.5mm pitch

 

Approvals and Certifications
EMC EN 60945 (sections 9 & 10)
Environmental Protection IP66
Operating Temperature -20°C to +70°C
Storage Temperature

 

-40°C to +85°C

 

Mechanical
Housing Material Polycarbonate
Protective Lid Material Polycarbonate
Sealing Materials Expanded silicone foam gasket, closed cell polyurethane splash guard and ePTFE waterproof vent
Dimensions 127mm (L) x 106mm (W) x 48mm (H)
Weight 210g
Mounting 4 x 3.5mm lugs to allow panel mount with self tapping screws (included), optional DIN rail mount available on request.
  • One OPTO-isolated input and Six ISO-Drive™ outputs for safe connections
  • Compatible with all NMEA 0183 devices
  • Pluggable screw terminals and DIN Rail mount provide quick and easy installation
  • Power and input indicator LEDs to aid network diagnosis
  • Power feed for single cable installations to the NMEA Talker helps reduce cabling requirements

 

NETWORK DIAGRAM

Here are some Frequently Asked Questions about the NBF-3.

Need more help? Visit our Support Centre here.

Actisense is dedicated to providing up-to-date software and resources for our products. Here are some useful tools and documentation to help you make the most of your product: