Raymarine NMEA Multiplexer Specifications Page 1

NMEA MultiplexerOwner’s HandbookDocument Number: 81250-1Date: February 2005

4ConnectionsReal-time or buffered inputsBefore connecting NMEA inputs to your NMEA Multiplexer, consider whether they should be connected as real time

5 NMEA outConnect the a and b terminals of the NMEA Out connector to the listening ports of up to four devices to which you wish to transm

6are made depends on whether the device has a differential or single ended output, as follows: Power supplyThe NMEA Multiplexer operates f

7• 24 AWG single-strand wire.• 7/0.2 multi-strand wire, i.e. 7 strands, each of 0.2 mm diame-terCAUTION: Electrical SafetyBefore connecting power to

8partially received sentences will be discarded, to ensure that the NMEA Multiplexer only passes complete and valid sentences.You may be able to resol

9Specifications Supply voltage: 8 V to 30 V dc, protected against reversed polarity.Supply protection: 0.5 A fuseSupply connection: Minimu

10Raymarine UK Ltd,Quay Point,Northarbour RoadPortsmouth,Hampshire PO6 3TD,United Kingdom.Tel: +44 (0) 23 9269 3611Fax: +44 (0) 23 9269 4642www.raymar

© Copyright Raymarine (UK) Ltd 2005

iPrefaceCongratulations on having bought a Raymarine NMEA Multiplexer. This enables you to combine NMEA outputs from up to four devices, to provide a

iiFor optimum EMC performance, it is recommended that wherever possible:• Raymarine equipment and cables connected to it are:• At least 3 ft (1 m) fro

iiiContentsPreface ... iCAUTION: Electrical safety ...

iv

1IntroductionThe Raymarine NMEA Multiplexer combines data from up to four NMEA-0183 devices to provide a single, multiplexed NMEA output. Inputs &

2NMEA inputsEach NMEA in (listener) port is a differential pair across terminals a and b, and can receive NMEA data from one device. The speed of each

3InstallationMountingAs the NMEA Multiplexer is not waterproof, it must be fitted in a location where it will not come into contact with water.Secure