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.
- AIS compatible
- Protects connected devices
- Simple installation
- Seal more connections with the NBF-2-GX
- Can be used to isolated between two systems
| 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) | 3 | 6.5 | mm |
| M16 gland clamping range | Cable diameters accommodated | 4.5 | 10 | mm |
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.
- AIS compatible
- Protects connected devices
- Simple installation
- Seal more connections with the NBF-2-GX
- Can be used to isolated between two systems
| 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) | 3 | 6.5 | mm |
| M16 gland clamping range | Cable diameters accommodated | 4.5 | 10 | mm |
