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15
Connect an NMEA Talker
TracPhone V30 Installation Guide
Connect an NMEA Talker
The antenna
requires
a vessel heading input from a
customer-supplied NMEA 0183 or NMEA 2000 talker.
Optionally, you can also provide a vessel position input to
serve as a backup to the antenna’s built-in GPS.
NMEA 0183
1.
Connect the NMEA 0183 talker to the 2-position
terminal strip connector (
supplied in kit
), as shown in
Figure 22. Then plug the connector into the rear panel
of the VSAT-Hub.
2.
Configure the NMEA device to transmit one or more of
the supported NMEA 0183 messages at 4800 baud.
3.
Make sure the data message(s) includes the
checksum, identifiable by a *xx field at the end of the
data sentence (e.g., $HEHDT,123.4, T*1F). Do not
exceed a 10 Hz input rate.
Note:
To supply both the required heading and the
optional position to the VSAT-Hub, you can either connect
an NMEA 0183 talker that transmits both messages, or
connect two devices using an NMEA data multiplexer, such
as Actisense
®
model NDC-4.
Figure 20: Supported NMEA 0183 Messages
NMEA 2000
1.
Connect the VSAT-Hub to the vessel’s NMEA 2000
CAN network backbone via a “T” connector. Be sure
to use a standard drop cable: 5-wire (4 cond
shield) twisted pair with micro-C connectors.
2.
Configure the NMEA device to transmit one or more of
the supported NMEA 2000 messages.
Figure 21: Supported NMEA 2000 Messages
Figure 22: NMEA Talker Wiring
NMEA 0183 $--XXX
Description
Heading Messages
HDG
Heading, Deviation & Variation
HDM
Heading, Magnetic
HDT
Heading, True
OSD
Own Ship Data
THS
True Heading & Status
VHW
Water Speed and Heading
Position Message (Optional)
RMC
Position (Optional)
PGN
Description
Heading Messages
127250
Vessel Heading
Position Message (Optional)
129029
GNSS Position Data (Optional)