Wegmatt dAISy Owner's Manual - page 9
5 Using the NMEA 0183 adapter
If you purchased dAISy with the optional NMEA 0183 adapter, the receiver can be connected to
chartplotters and other marine equipment.
dAISy NMEA adapter
Chartplotter / boat
Comment
NMEA+
NMEA positive input
NMEA-
NMEA negative input
If your device only has one RX wire per port,
leave NMEA- unconnected
GND
Ground
If your device has only one RX wire or you
connect external power, ground must be
connected.
9-24V
Boat 12-24V power
system
External power for dAISy if you are not using
USB.
Below is an illustration on how to connect the dAISy NMEA adapter with a compatible device using
single-wire or two-wire NMEA 0183 connection. Note that the colors may be different. Check the
installation instructions of your chartplotter to identify the proper connections.
single-wire NMEA connection
two-wire NMEA connection
By default, dAISy is configured to output at 38400 Baud (NMEA high speed). This can be changed to
other baud rates in the configuration and debug menu. You also need to check the configuration of your
chartplotter. In many models, the NMEA port needs to be enabled in the settings menu and set to the
correct protocol, like for example NMEA high speed).
NMEA 0183 is compatible with RS-422, which means that the NMEA adapter can also be used to
connect dAISy with RS-422 to serial, RS-422 to Ethernet and other RS-422 compatible equipment. You
may need to swap the NMEA+ and NMEA- leads.