MOUNTING Page
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connector to the female 18 pin connector on the back of the R4 Navigation
Sensor. Wire the open end of the cable as described in section 5.1 and
Appendix [A.8].
Connect the antenna to the R4 Navigation Sensor, following the instructions
in section 4.3.
Note: The power and data cable for connecting to the R4 Navigation Sensor
and the signal cable for connecting to the R4 Display both use 18 pin
connectors. Make sure they are not interchanged! The R4 Sensor power and
data cable is marked with “7000 109-011” and can also be identified by the
fact that all 18 pins are mounted in the male connector.
Note: The R4 Navigation Sensor provides 5 VDC across its antenna port.
The antenna shield as well as the R4 Navigation Sensor power and data
cable shield and Signal GND lines are connected to the negative terminal of
the 24V DC power supply. Connecting to the ship’s structure or
incompatible devices may result in damage to equipment.
Note: The Chassis of the R4 Navigation Sensor is not connected to any
internal ground and may thus be connected to the ship’s structure if desired.
4.2.5
Power Supply
The R4 Navigation Sensor can be connected to an emergency power source.
If connected to an emergency battery, a re-calculation must be made for the
battery capacity. For power consumption, see section 8.2.
The R4 Navigation Sensor is designed to operate on 24 VDC. The nominal
power used is 2.7 W. The R4 Navigation Sensor shall be externally fused
(slow blow fuse) with a 1 A fuse.
Install according to section 5.1 and Appendix [A.8].
4.3
Mount the GPS or DGPS Navigation Antenna
The R4 Navigation Sensor should be connected to the included antenna,
which in the GPS configuration is a MGA-2 GPS antenna and in the DGPS
configuration is a MGL-4 combined GPS/Beacon antenna.
Attention should be paid to the location and installation of the different
antennas on the ship in order to obtain the best possible signal reception.
Installation of the Navigation Sensor’s antenna is a crucial part of the
system installation. How and where you install your antenna and cable will
greatly affect its sensing efficiency.
4.3.1
Antenna Location
Mount the MGA-2 or MGL-4 antenna at a location with a clear,
unobstructed view of the sky. For best beacon reception performance,
mount the MGL-4 antenna so that the center of the black gasket is at least 8
cm (3 in) above any metal surface.
Local noise generated by your vessel or surroundings may affect your
navigation system performance. To minimize this impact, you should locate
the antenna outside the path of any radar beam, away from any transmitting
antennas, and away from any other sources of interference such as motors,
solenoids and other electronics. Do not, however, mount the antenna in the
top of a mast or tower, as this may degrade the COG and SOG readings.
Summary of Contents for 1000 R4
Page 18: ...MOUNTING Page 12 Figure 4 7 Panel mounting R4 Display Figure 4 8 R4 Display panel mounted ...
Page 79: ...TECHNICAL SPECIFICATIONS Page 11 ...
Page 80: ...TECHNICAL SPECIFICATIONS Page 12 APPENDIX A J4N SCHEMATIC ...
Page 81: ...TECHNICAL SPECIFICATIONS Page 13 APPENDIX B J4N PCA LAYOUT ...
