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 current||Supply voltage 12v (Min. load, Max. load)||44||100||mA|
|Supply voltage 24v (Min. load, Max. load)
|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 to ground
|Full Galvanic Opto-isolation protection
|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
|M12 gland clamping range||Cable diameters accommodated (NBF-2-GX)||3||6.5||mm|
|M16 gland clamping range||Cable diameters accommodated||4.5||10||