ACTISENSE NBF2 NMEA BUFFER

The Actisense® NMEA Buffer module is the best solution for buffering weak NMEA sources, allowing NMEA devices to be driven, such as chart plotters, radars, and/or an on-board PC / Laptop.

The very latest Actisense® ISO-Drive technology has been added to the NBF-2 so that now each output is separately isolated from each other and from the power supply, making this a world first at this price point and the safest buffer on the market.

The NBF-2 Buffer is required wherever an NMEA source cannot provide sufficient power to drive all the equipment that requires the NMEA data it supplies. It is also ideal for safely interfacing an on board PC to all the NMEA equipment on board a vessel, while providing total Opto-isolation between every device.

Due to the ISO-Drive output, the buffer may also be used where a ground loop problem needs solving, and means that it is not necessary to use supply isolators to achieve isolation between two data sources.

Designed for buffering data from all NMEA source types (RS422, RS485 and RS232), including direct connection to a PC RS232 output, this buffer produces an amplified copy on each of its 6 ISO-Drive outputs

Electrical spike protection is provided as standard on the buffer's input using full galvanic Opto-isolation to provide superior protection to the NMEA source device. The NBF-2 input exceeds all the requirements of the latest NMEA 0183 specification.

Simple to use, high quality screw connectors that are angled to allow easy access, make wiring up the NMEA Buffer a simple task.

 

Parameter	Description	Min.	Max.	Unit
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	Extended 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