KVH Industries tracvision tv8, Installation Manual

Page: 25 / 51

24
At the customer’s option, you can connect a
NMEA device to the TV-Hub, allowing the
antenna to use its GNSS position and heading
data to speed up satellite acquisition. The current
position and heading will also be displayed on
the Home page of the web interface.
NOTE: The antenna system can only use and display
true heading. If only magnetic heading is input, the
TV-Hub will use the current location data to convert
magnetic heading to true heading. Without a built-in
GPS or NMEA GNSS input, the user-entered
location will be used.
Follow these steps to connect a NMEA device to
the TV-Hub, if desired.
NMEA 0183
a. Wire and connect the 2-position terminal
strip connector ( supplied in kit ) as shown in
Figure 36.
b. Configure the NMEA device to transmit one
or more of the supported NMEA 0183
messages at 4800 baud (see Figure 37).
NMEA 2000
a. Connect the TV-Hub to the vessel‘s
NMEA 2000 CAN network backbone via a
“T” connector, as shown in Figure 36. Be sure
to use a standard drop cable: 5-wire
(4 cond shield) twisted pair with
micro-C connectors.
b. Configure the NMEA device to transmit one
or more of the supported NMEA 2000
messages (see Figure 38).
Later, you will select the NMEA source at the
TracVision Setup Wizard (see
“Set Up the
System” on page 31 ).
TV-Hub
OR
B A
1 2
NMEA 0183 Talker
NMEA
0183
NMEA 2000 Talker
CAN Network
Backbone
NMEA
2000
Figure 36: TV-Hub NMEA Connections
Figure 37: Supported NMEA 0183 Messages
NMEA 0183 $--xxx Description
HDG Heading, Deviation &
Variation
HDM Heading, Magnetic
HDT Heading, True
OSD Own Ship Data
THS True Heading & Status
VHW Water Speed and Heading
RMC GNSS Position Data
Figure 38: Supported NMEA 2000 Messages
PGN Description
127250 Vessel Heading
129029 GNSS Position Data
12
Connect a NMEA Device
Optional