Both the Simrad GB40 and the Northstar 8000i systems interface to the Navico radar via a
ethernet network. The Ethernet network connectivity is the same for the two types of display
system. The two systems are different in the way they accept heading information for MARPA and
accurate chart overlay. The Northstar 8000i requires NMEA 0183 heading to be sent both the
Master NavComputer and also the radar processor module. The Simrad GB40 NavComputer gets
heading over SimNet. The radar processor module requires the use of a AT10HD (SimNet to NMEA
0183 converter) to feed simnet heading at 10 Hz
Note. Do not use a standard AT10 as this only passes heading at 4 Hz
The Navico Radar module connects to the GB40 / 8000i systems using an ethernet cable. An
Ethernet cable will connect between the radar modules network port and a free port on the Navico
8 Port Ethernet Linker (AA010009). the These are available in the following lengths. and need to
be ordered seperatly. They do not shop with any products
NS004810
Network Cable 1.6 ft (0.5 m)
NS004811
Network Cable 6.5 ft (2 m)
NS004812
Network Cable 16.5 ft (5 m)
NS004813
Network Cable 33 ft (10 m)
NS004816
Use network Connector Field Terminating kit
NS004817
Unterminated Cable 328 ft (100 m)
NS004818
Unterminated Cable (300 m)
If there are only 2 ethernet network devices that make up the network i.e the NavComputer and
the radar processor it is possible to use an ethernet crossover cable (NS004815)
7.1
Parts needed to connect radar to a GB40 or 8000i system
Ethernet Cables: (Simrad GB40 and Northstar 8000i)
The connection between the radar processor and the GB40/8000i system is via a
ethernet network. 1 ethernet cable is used to connect the radar to a Navico 8 port
network linker linker. Select the desired length.
If the is only one NavComputer with Radar, a crossover cable can be used
Part No
Description
NS004810
Ethernet cable 0.5 m (1.6 ft) male / male connectors
NS004811
Ethernet cable 2 m (6.5 ft) male / male connectors
NS004812
Ethernet cable 5 m (16.5 ft) male / male connectors
NS004813
Ethernet cable 0.5 m (1.6 ft) male / male connectors
NS004814
Ethernet cable joiner 0.5 m (1.6ft) female / female
NS004817
Ethernet cable bulk roll 100m (328 ft) un-terminated
NS004818
Ethernet cable bulk roll 300m (985 ft) un-terminated
NS004816
Ethernet Connector. Field terminating ethernet connector for bull
ethernet cable
Ethernet Crossover cable
Used to connect the radar processor directly to a NavComputer. Cable has Female
connectors on both ends and joins two of the above standard ethernet cables together
(see "Simrad GB40 connection using SimNet heading" page 32)
7
Connect Simrad GB40 or Northstar 8000i
