Raymarine NMEA Multiplexer Owner's Handbook Manual
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Raymarine NMEA Multiplexer Owner's Handbook Manual

Raymarine NMEA Multiplexer Owner's Handbook Manual

Raymarine nmea multiplexer owner's handbook
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NMEA Multiplexer
Owner's Handbook
Document Number: 81250-1
Date: February 2005

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Summary of Contents for Raymarine NMEA Multiplexer

  • Page 1 NMEA Multiplexer Owner’s Handbook Document Number: 81250-1 Date: February 2005...
  • Page 2 © Copyright Raymarine (UK) Ltd 2005...

  • Page 3: Caution: Electrical Safety

    Important information To the best of our knowledge, the information in this handbook was correct when it went to press. However, Raymarine cannot accept liability for any inaccuracies or omissions it may contain. In addition, our policy of continuous product improvement may change specifications without notice.

  • Page 4: Suppression Ferrites

    Raymarine equipment. Always use the ferrites supplied by Raymarine. Connections to Other Equipment If your Raymarine equipment is to be connected to other equipment using a cable not supplied by Raymarine, a suppression ferrite MUST always be attached to the cable near the Raymarine unit.

  • Page 5: Table Of Contents

    Contents Preface ... i CAUTION: Electrical safety ... i Important information ... i EMC Installation Guidelines ... i Suppression Ferrites ... ii Connections to Other Equipment ... ii Introduction ... 1 Inputs & outputs ... 1 NMEA inputs ... 2 Input priorities ...

  • Page 7: Introduction

    Introduction The Raymarine NMEA Multiplexer combines data from up to four NMEA-0183 devices to provide a single, multiplexed NMEA output. Inputs & outputs The NMEA Multiplexer has: • Four NMEA inputs (listener-ports), NMEA In 1, 2, 3 & 4. • One NMEA output (talker-port), NMEA Out •...

  • Page 8: Nmea Inputs

    NMEA inputs Each 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 listener port is fixed at 4800 baud. NMEA data on listener ports 1 and 2 is multiplexed in real time (i.e.

  • Page 9: Installation

    Installation Mounting As the NMEA Multiplexer is not waterproof, it must be fitted in a location where it will not come into contact with water. Secure the NMEA Multiplexer to a suitable surface, as shown in the following illustration. Place the NMEA Multiplexer at Drill two 1/8"(3.4 mm) pilot...

  • Page 10: Connections

    NMEA in Connect an unused pair of NMEA In a and b terminals on the NMEA Multiplexer to the NMEA output port of each device from which you wish to receive NMEA data. The manner in which the connections are made depends on whether the device has a...

  • Page 11: Nmea Out

    NMEA out + NMEA In a NMEA In b NMEA out - Shld Note: NMEA outputs from Raymarine products are differential. Cable Device with shield single-ended NMEA output NMEA Multiplexer NMEA out + NMEA In a...

  • Page 12: Power Supply

    Ground Shld Power supply The NMEA Multiplexer operates from a dc supply voltage in the range 8 V to 30 V and provides protection against reversed polarity. It is recommended to connect the NMEA Multiplexer to the same power source or circuit breaker as the ships instruments and/or computer.

  • Page 13: Caution: Electrical Safety

    • 7/0.2 multi-strand wire, i.e. 7 strands, each of 0.2 mm diame- CAUTION: Electrical Safety Before connecting power to the NMEA Multiplexer, turn off the power supply. Connect either a 24 V or 12 V power supply, via a 0.5 A fuse, as...

  • Page 14: Both Indicators Lit

    NMEA Multiplexer only passes complete and valid sentences. You may be able to resolve this overflow situation if you: • Set up the devices on the listener ports to send less data or data at greater intervals.

  • Page 15: Specifications

    Specifications Supply voltage: 8 V to 30 V dc, protected against reversed polarity. Supply protection: 0.5 A fuse Supply connection: Minimum requirement either: 24 AWG single-strand wire. 7/0.2 multi-strand wire. Current consumption: 70 mA maximum, with fully loaded talker ports. Inputs: 4 x NMEA-183, galvanically isolated.
  • Page 16 Raymarine UK Ltd, Raymarine Inc, Quay Point, 22 Cotton Road, Northarbour Road Unit D, Nashua, Portsmouth, New Hampshire 03063-4219, Hampshire PO6 3TD, USA. United Kingdom. Tel: +1 603.881.5200 Tel: +44 (0) 23 9269 3611 Fax: +1 603.864.4756 Fax: +44 (0) 23 9269 4642 www.raymarine.com...

This manual is also suitable for:

Nmea 0183Nmea-018

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