Comar Systems NMEA-2-WIFI Manuel de l'utilisateur - Page 3

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1 CONTENTS

● The NMEA-2-WIFI Unit

● WIFI Antenna

● This Manual

2 INSTALLATION

The NMEA-2-WIFI unit is not waterproof and should be installed in a dry location.

The unit can be secured by the 4 mounting holes in the end flanges. It should ideally

be installed in a location suitable for connection to power and NMEA cables,

observing a compass safe distance of 0.5 m.

Choose the best location for WIFI transmission, ideally within sight of the device you

wish to connect to.

Screw on the supplied antenna and set the orientation vertically.

2.1

Power Connection

Operation is from the boats DC supply of 12-24 Volts, connect power to the two

terminals marked 12/24V Power, observing correct polarity. A switched fused

supply is recommended with a fuse value of 1 Amp.

2.2

NMEA Connections

The NMEA-2-WIFI has two NMEA 0183 Inputs, one at 4800 baud, and one at

38,400 baud.

Any 4800 baud NMEA data such as from a GPS, Chart Plotter or Instruments can

be connected to the NMEA INPUT 4800 terminals, observing the correct polarity.

The unit can only be connected to one piece of equipment so choose the unit that

has the most information that you require. If you have several pieces of equipment

that you wish to receive data from then you may need to purchase a NMEA

Multiplexer to combine all this data into one before connecting to the WIFI unit.

The 38,400 baud NMEA data input would normally be connected to an external AIS

Receiver or Transponder, however it will also accept any other NMEA data at

38,400.

The NMEA Output is set to 38,400 baud and can be connected to a suitable Chart

Plotter or AIS Transponder that will accept data in.

If the equipment that you are connecting to has a pair of NMEA cables, normally

marked NMEA Output Positive and Negative these should go to the respective

NMEA input on the WIFI unit.

If the equipment has only one Positive NMEA output wire this should go to the

+NMEA Input and a wire from the -NMEA Input should then be taken to the

common ground/negative of the other equipment.

NMEA-2-WIFI