Operation Manual

8120 Installation and Operation Manual79
NavBus is Navman’s system for connecting
instruments together to interchage data and
share transducers. When instruments are
connected by NavBus:
If the units, alarms or calibration are
changed in one instrument, then the
values will automatically change in all
other instruments of the same type.
Each instrument can be assigned to a
group of instruments. If the backlight is
changed in an instrument in group 1, 2, 3
or 4 then the backlight will automatically
change in the other instruments in the
same group.
If the backlight is changed in an
instrument in group 0 then no other
instruments are affected.
If an alarm sounds, mute it by clearing the
alarm on any instrument which can display
that alarm.
NavBus and the Instrument
The Instrument can:
Display wind speed and direction from an
optional Navman Wind instrument
Receive and display depth from an
optional Navman depth instrument.
Receive and display boat speed and water
temperature from a paddlewheel sensor
on an optional Speed instrument.
18-11 Installation: Other NavBus instruments
Receive barometric pressure from
an optional Navman VHF radio. The
Instrument can display:
Baro: barometric pressure
Baro history: barometer history
Weather: a predication, based on changes
in barometric pressure
Fish forecaster: a prediction based on
changes in barometric pressure
Receive data from an optional GPS or
GPS/DGPS source.
Send data to optional NAVMAN
instruments, for example to a repeater.
During setup for NavBus instruments, set
NavBus to and assign the instrument a
NavBus group number (see section 17-10)
Black
Power/data cable
Orange
Blue
NavBus wires to other
Navbus instruments