Matrix Ais+ 38400 Baud Connections - Standard Horizon GX2150 Owner's Manual

6.6.2 MATRIX AIS+ 38400 Baud Connections

Use the image and table below when connecting to a GPS Chart plotter which
has one NMEA 0813 ComPort.
Wire Color/Description
WHITE - External Speaker ( + )
SHIELD - External Speaker (–)
RED - PA Speaker ( + )
SHIELD - PA Speaker (–)
GREEN - NMEA Ground
BLUE - NMEA GPS Input ( + )
GRAY - NMEA DSC Output ( + )
BROWN - AIS DATA Output ( + )
1: The GPS Chart plotter ComPort must be setup to 38400 baud (HS) to send GPS coordinates to the GX2150 (Blue
wire) and to receive DSC and AIS sentences from the GX2150 (Gray wire).
2 The MATRIX AIS+ always outputs NMEA 0183 VDM sentence at 38400. This wire could be connected to another
GPS Chart Plotter or to a PC.
When connecting the external speaker or GPS navigation receiver, strip off
about 1 inch (2.5 cm) of the specified wire's insulation, then splice the ends
together.
Note: In some areas powerful AM broadcast stations may be heard when in
listen-back mode. In this case change the speaker wire to 2-conductor shielded
audio cable. See the illustration below for connections.
GX2000/GX2150
Red
PA Speaker
Shield
Radio Wires
Gray: NMEA Output ( )
Blue: NMEA Input ( )
Green: NMEA Common
Brown: No Connection
White
External Speaker
Shield
Connection Examples
Positive wire of an 4 Ohm external speaker
Negative wire of an 4 Ohm external speaker
Positive wire of an 4 Ohm PA speaker ( horn )
Negative wire of an 4 Ohm PA speaker ( horn )
GPS Chart Plotter NMEA 0183 common
GPS Chart Plotter NMEA 0183 output positive wire
GPS Chart Plotter NMEA 0183 input positive ( A ) wire
2
No Connection
Red
Bare
Connect the bare wire from the GX2000/GX2150
to one wire and to the shielded.
Make Red and bare connections short as possible
GPS Receiver
Plotter Connection
NMEA-HS IN ( )
NMEA HS OUT ( )
NMEA COMMON ( )
Shield of cable is not
attached on PA Speaker end
1
1
PA Speaker
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