Instruction/ maintenance manual of the product NMEA Multiplexer Raymarine
Go to page of 16
NMEA Mult iplex er Owner’ s Handbook Docum ent Nu mber: 81 250- 1 Date: F ebrua ry 20 05.
© Copy right Ray marine (UK ) Ltd 2005.
i Prefac e Congra tula tions on havin g boug ht a Ra ymarine N MEA Multip lexer . T his e nables you to co mbine NMEA ou tputs f rom up to f our dev ices , to provi de a comb ined output to four other devices. CAUTION : Elec trical safety Make sur e you have swi tched off the po wer supply before you start installi ng this product.
ii Fo r opt imum EMC pe rforma nce , it is recomm ended that wherever possible : • Raymarine e quipment and ca bles connected to it are: • At leas t 3 ft (1 m) from any eq uipment tra nsmittin g or cables car rying radio s ignals e .g. VHF ra dios, cable s and anten nas.
iii Contents Preface . ..... ....... ........ ........ ..... ....... ........ ........ ..... ....... ........ ....... .... i CAUTION: Elect rical safety ................. .............. ......... i Impor tant i nforma tion .. ........ ....... ..... ..
iv.
1 Introduc tion T he R aymar ine NMEA Multip lexe r combi nes dat a from up to four NMEA -018 3 devi ces to prov ide a s ingle , mul tipl exed NMEA outp ut. Inputs & outputs The NMEA Mult iplexer h as: • Fo ur NMEA inputs ( listen er -ports) , NM EA In 1, 2, 3 & 4 .
2 NMEA i nputs Each NMEA in (liste ner) po rt is a diffe renti al pair acro ss terminal s a and b , an d can r ecei ve NME A dat a from on e dev ice . The speed of ea ch listener port is fixed at 48 00 baud. NMEA da ta on li stener po rts 1 and 2 is mult ipl exed in real time (i.
3 Installation Mounting As the NMEA Mu ltipl exer is no t wa terproo f , it mu st be fi tted in a locati on where it will not come i nto con tact wit h water . Sec ure t he NME A Mult iplex er to a sui table s urfac e , as s hown in the fol lowing illustr ation.
4 Connectio ns Real-tim e or buffer ed inputs B e f or e c o n n e c t i n g N M E A i n p u t s t o yo u r N M E A M u l t ip le x e r , c o n si de r w h e t he r t he y s h o ul d b e c o n n e c t.
5 NMEA ou t Connect th e a and b terminals of the NMEA Out connec tor to t h e l i s t e n i n g p o r t s o f u p to f o u r d e v i c e s t o w h i c h y ou wi s h t o tra nsmit mult iplexe d da ta.
6 are m ade de pends on w hethe r the devic e has a dif fer entia l or singl e end ed outp ut, as follow s: Pow er s up pl y The NMEA Mu ltiplexer o perates f rom a dc supply volt age in t he range 8 V to 30 V and pro vides pro tecti on again st reve rsed polari ty .
7 • 24 AWG single-st rand wire . • 7/0 .2 mul ti-stran d wire, i.e. 7 stran ds, each of 0.2 mm diame- ter CA UTIO N: Ele ctri cal Sa fet y Befor e connecting po wer to the N MEA Multiplex er , turn off the power s upply . Connect either a 24 V or 12 V power su pply , via a 0.
8 partia lly rec eived sen tences wil l be disc arded, t o ensure th at the NMEA Multip lexer only pass es co mplet e and val id sent enc es . Y ou may be ab le to re solve this o verflo w situati on if you : • Set up the devices on the l istener ports to send less data or data at greater i nterv als .
9 Specifications Supply voltag e: 8 V to 30 V d c, protec ted again st revers ed pola rity . Supply protection: 0.5 A fuse Supply connec tion: Minimu m requi rement either: 24 AWG single-s trand wire. or 7/0.2 mu lti-st rand wire . Current cons umption: 70 mA maximum , wit h fully load ed talk er ports .
10 Raymari ne UK Ltd , Quay Point, Northa rbour Road Por ts m ou th , Hamp shire P O6 3TD , United Kingdom. T el: +44 (0 ) 23 926 9 3611 F ax: +4 4 (0) 2 3 9269 464 2 www .r aymarine .com Raym arin e Inc , 22 Cotton Road, Unit D , Na shua, New Ham pshi re 0306 3-421 9, USA.
An important point after buying a device Raymarine NMEA Multiplexer (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Raymarine NMEA Multiplexer yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Raymarine NMEA Multiplexer - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Raymarine NMEA Multiplexer you will learn all the available features of the product, as well as information on its operation. The information that you get Raymarine NMEA Multiplexer will certainly help you make a decision on the purchase.
If you already are a holder of Raymarine NMEA Multiplexer, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Raymarine NMEA Multiplexer.
However, one of the most important roles played by the user manual is to help in solving problems with Raymarine NMEA Multiplexer. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Raymarine NMEA Multiplexer along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
