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2-6 Installation
2.4.3 NMEA Data
The RAY230/E accepts NMEA 0183 data from a position determining device
(GPS, etc.) to provide the Latitude and Longitude position information
that is transmitted during a DSC Distress Call.
Connect the input(s) of the positioning device to the white (NMEA+) and
black (NMEA-) wires in the Power/Hailer/NMEA cable.
An example of how to connect the NMEA cables and power supply using
a suitable connector block is shown in the diagram below. For specific
instructions how to connect your particular GPS, please refer to the
handbook that came with that device.
Note: For non-differential GPS, all return connections (-) must be tied to a
common ground reference.
+12 V
0V
+ NMEA Data (white)
-- NMEA Data (black)
Red
Black
Yellow
2.4.4 Using the SeaTalk Auxiliary Junction Box
If installed, it may be convenient to connect the RAY230/E using the SeaTalk
auxiliary junction box. This junction box enables the SeaTalk bus, power,
and GPS to be connected.
If power is not already available (via another SeaTalk instrument), the
junction box can be used to apply power to the SeaTalk bus for other
applications. The junction box may also be used for connecting an NMEA
GPS system.
Figure 2-5 Sample GPS Connections to NMEA