Installation Instructions

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NMEA 2000 / SimNet | NSS Installation Manual
NMEA 2000 / SimNet setup
Setup is required on initial start up of the system, or if any part of the NMEA 2000 network has
been changed or replaced.
From ‘Network’ in the main system settings menu you can:
• select NMEA 2000 data sources - either automatically or manually
• con gure instance numbers for NMEA 2000 devices (where multiple sources of same data
exist)
• control how device parameters backlighting, units, damping, and alarms are grouped on the
network
• select to share waypoints via NMEA 2000
• monitor NMEA 2000 network bus state and reliability
• control data damping
• calibrate water speed derived from a NMEA 2000 source
Auto Select (Source Selection)
The Auto Select option will look for all sources connected to the NSS system. If more than
one source is available for each data type, the NSS will automatically select from an internal
priority list.
Make sure all devices are connected and are turned on before selecting the Auto Select
option.
Manual source selection
Manual selection is generally only required where there is more than one source for the same
data, and the automatically selected source is not the one desired.
Group source selection
Simrad products such as NSS, NSE, and IS40, have the ability to;
• use data sources (eg position, wind direction, etc) that all other products on the network use,
or alternatively use a data source independently from other units.
• globally change all displays over to a di erent source from any display. (This will only include
products set to a Group mode.)
In order to enable group selection, the display must be set to ‘Default’ group.
In some cases it may be desired that an NSS on a network receives the same type of data, but
from di erent sources to that of the rest of the network devices. To do this set the data Group
setting to None, and select a source for the data
Advanced source selection
This allows the most  exible and precise manual control over which devices provide data to
the NSS
Some data sources, such as those for fuel level, or engine RPM, can only be changed via the
Advanced menu. Occassionally Auto Select may assign sources incorrectly, which may be
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