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NMEA Buffer

NBF-2-A

User Manual

Issue 1.03



1 Galvanically opto-isolated NMEA 0183 “Listener” data input

for complete isolation of the input from ground, meeting all

the specifications of the latest NMEA 0183 / IEC61162-1&2

specifications.



6 ISO-Drive “Talker” outputs, compatible with both NMEA 0183

(RS422 / RS485) and RS232 listeners.



Compatible with NMEA 0183 standard and “HS” (AIS) baud rates,

and speeds well in excess of this for special applications.

Содержание NMEA Buffer NBF-2-A

Страница 1: ...ation of the input from ground meeting all the specifications of the latest NMEA 0183 IEC61162 1 2 specifications 6 ISO Drive Talker outputs compatible with both NMEA 0183 RS422 RS485 and RS232 listen...

Страница 2: ......

Страница 3: ...5 Electrical specifications 5 Technical features 5 Connecting devices together 6 The basics 6 The NMEA signals 6 The different NMEA standards 6 Connections 7 Input Connections 8 NMEA 0183 Input 8 Conn...

Страница 4: ...rights of a third party caused by the use of information or drawings described in this manual Active Research Limited will not be held responsible for any damage to the user that may result from acci...

Страница 5: ...ematic ground loops between the NMEA device connected to the NBF 2 input port and all the NMEA devices connected to the output ports The NBF 2 is equipped with 6 ISO Drive outputs ISO Drive output tec...

Страница 6: ...ground as the other line similar to the way a computer serial port works This connection method is referred to as single ended instead of the differential method used by NMEA 0183 v2 0 devices The da...

Страница 7: ...connection NMEA cables used should meet the two conductor shielded twisted pair configuration specification The shield connection of these wires should be connected at the instrument end only to preve...

Страница 8: ...A This device conforms in full to the NMEA 0183 standard and shares the same connection ID s as the Actisense NBF so connection is a simple matter of matching ID s refer to figure 2 NMEA Talker devic...

Страница 9: ...EA Listener device 5 This device does not conform in full to the NMEA 0183 standard and is a single ended device Connection of single ended devices to a differential output used to be done with cautio...

Страница 10: ...e is selecting the correct PC Comms port number and baud rate As a diagnostic you can use the standard Windows HyperTerminal utility to receive NMEA data By setting the input comms port to the one the...

Страница 11: ...t current note 4 50 55 mA Galvanic isolation Between output and ground 1500 V Other parameters Baud rate 115 2 Kbit sec Data propagation delay typical 1 7 2 1 us General Ambient temperature 20 70 C Ta...

Страница 12: ...International 44 1202 746682 Fax 01202 746683 International 44 1202 746683 Actisense on the Web For advice support and product details E mail support actisense com Website www actisense com Actisense...