Actisense NMEA 0183 Bedienungsanleitung PDF herunterladen (Seite 4)

Important Notices

Actisense and the Actisense logo are registered

trademarks of Active Research Limited. All rights are

reserved. The contents of this manual may not be

transferred or copied without the express written

permission of Active Research Limited. All other

trademarks are the property of their respective owners.

The Actisense NMEA Data Multiplexer / Combiner /

Autoswitch (NDC-4) is intended for use in a marine

environment,primarilyforbelowdeckuse.Iftheunitisto

beusedinamoresevereenvironment,suchusemaybe

considered misuse under the seller’s guarantee.

The ActisenseNDC-4 hasbeencertied tocomplywith

the European directive for Electromagnetic Compatibility

(EN60945), and is appropriately CE marked. Operation of

the unit should be in conjunction with appropriate CE

approved shielded connectors and cabling used in

accordance with the CE directive EN60945. Any EMC

related issues should be reported to Active Research

Limited immediately to allow the company to rectify or

resolve EMC related problems in accordance with its

obligationsunderEN60945.

If the unit is connected such that compliance failure occurs

beyondthecompany’scontrol,thecompanyshallnotbe

heldresponsibleforcompliancefailureuntilsuitableEMC

guidelinesforconnectionareseentohavebeentaken.

Notices

The products and specications described in this guide

maybechangedwithoutpriornotice.Toobtainthelatest

information visit www.actisense.com.

Active Research Limitedwillnotbeliableforinfringement

of copyright, industrial property right, or other rights of a

thirdpartycaused bytheuse of informationordrawings

describedinthismanual.

The NGW-1-USB must be used in accordance with the

manufacturers instructions. Active Research Limited will

notbeheldresponsibleforanydamageorinjury,director

otherwise, as a result of failure to adhere to these

instructions.

The NDC-4 does not validate the NMEA data it receives in

any way. Neither the NMEA sentence checksum, nor the

data contained within the NMEA sentence is validated.

Therefore, the electronic device(s) supplying the NDC-4

with NMEA data retain(s) the sole responsibility for the

NMEA data’s validity.

Foreword

Actisense recognises that instructions are often skipped,

so we have aimed to write this document in an informative,

yet direct manner that will aid the user. We have tried to

cover all the points a typical user may need to know.

Please read all sections before installing and using the

Actisense NMEA Data Multiplexer product and any

related software programs.

Introduction

The Actisense NDC product range developed out of the

requirementtosolvetwofundamentalproblems with the

existing marine industry NMEA 0183 communications

standard.

In theory, the NMEA 0183 standard allows any suitably

designed marine electronic device to share its gathered

information with any other device on a vessel.

Unfortunately, thereisoneverylarge drawbackwiththis

standard - only one device on a connected network can

actually send data (a single talker), with multiple devices

(determined by the current limit of the sending unit)

listening to that data (multiple listeners).

If the vessel owner has an instrument that ideally requires

the data output of two or more devices, for example a

chart-plotter, then the owner has no alternative but to

settle on connecting only the most important device (that

which supplies the most used information), normally that is

theGPSunit.Allotherdevicescannotbeused.

What happens if the owner prefers the vessels gyro

compass heading output to that of the GPS, or requires

thatthecurrentdepthbedisplayedontheplottedchartto

helpavoidthepossiblecaseofrunningthevesselaground

onashiftingsandbank?TheNMEA0183standardcannot

supply an answer to those questions as it can handle only

one transmitting device.

Thesetwoelementaryproblemscanbesolvedsimplyand

easily with the Actisense NMEA Data Multiplexer’s very

exibledesignapproach.

Alternately, if the vessel has two or more identical NMEA

devices (e.g. GPS’s or depth sounders) the system

solutioncouldbetousetheNDC-4asanNMEAAutoswitch

to select the highest priority source.

Full information on the complete Actisense product range

canbefoundonthe Actisense website (www.actisense.

com).

1 2 3 4 5 6 7 8 9 ... 19 20

Kommentare zu diesen Handbüchern

Keine Kommentare

Actisense NMEA 0183 Bedienungsanleitung Seite 4

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Gateways / Controller Actisense NMEA 0183