NKE 90-60-495 User manual

Z.I. Kerandré – Rue Gutenberg – 56700 HENNEBONT- FRANCE
http://www.nke.fr – After-sales service 0 33 297 365 685.
A.I.S RECEIVER-COMPUTER
Product part number: 90-60-495
USER MANUAL

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CONTENT
1 OPERATION.........................................................................................................................3
1.1. INTRODUCTION ............................................................................................................3
1.2. A.I.S. RECEIVER / PROCESSOR DESCRIPTION .........................................................................4
1.3. OPERATION...................................................................................................................5
1.3.1. Collision avoidance data processing........................................................................5
1.3.2. How is collision avoidance data displayed on the Gyrographic ?.............................6
1.3.3. Fault states...............................................................................................................7
1.3.3.1. No GPS signal (no-fix or out of order)................................................................7
1.3.3.2. Lost connection between the Gyrographic and the A.I.S Receiver/Processor...7
1.4. TECHNICAL SPECIFICATION.......................................................................................8
2 FIRST-LEVEL TROUBLESHOOTING..................................................................................8
3 INSTALLATION....................................................................................................................8
3.1. L IST OF ACCESSOR I ES ......................................................................................................8
3.2. INSTALLATION CAUTION...................................................................................................8
3.3. MOUNTING THE A.I.S. RECEIVER/PROCESSOR UNIT...............................................8
3.4. CONNECTING THE A.I.S. RECEIVER/PROCESSOR UNIT ..........................................9
4 GLOSSARY ........................................................................................................................11

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1 OPERATION
1.1.INTRODUCTION
Thank you for purchasing the nke A.I.S. receiver-processor.
A.I.S. (Automatic Identification System) is a worldwide system for exchanging information
between ships and stations ashore. A.I.S uses dedicated VHF frequencies to automatically
broadcast information such as ship’s identification, status, position and route. This information is
available to any ship or traffic control station within the signal reception area.
This data, combined with information coming from the GPS, allows the nke AIS Receiver-
Processor to calculate collision risks and to send an alarm to the nke Gyrographic (version
3.20 and up) out in the cockpit.
DISCLAIMER
Data provided by the nke A.I.S. receiver-processor provides an indication only. The
users acknowledge that they are aware that data received can be partial and / or incorrect and
that they are solely responsible for any risks related to the use of this instrument. In no event
shall nke be liable for any direct, indirect, incidental, or consequential damage related to the use
of this instrument.
IMPORTANT
Please take time to read this manual carefully before you start installation
Any connection to the TOPLINE bus must be performed through the specific interface box #
90-60-417 and only with the TOPLINE bus cable # 20-61-001
System configuration
BLANC
GND NOIR
BLANC
GND
NOIR
12V
GND
NMEA-
NMEA+
NMEA-
NMEA+
init
connetion box
90-60-417
Figure 3 : Connection AIS Receiver to the Gyrographic
BLANC
GND
NOIR
Green
Yellow
GPS
11
Aut
o
Sto
p
Pag
eEnt
AIS - Collision Danger
Ship MMSI 923456789
Bearing: 69° Dist: 9.0Mn
Colision data:
Time: 35min Dist: 2.0Mn
Ship MMSI 785234468
Bearing:23° Dist: 6.4Mn
Collision data:
Time: 19min Dist: 1.2Mn

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1.2.A.I.S. RECEIVER/PROCESSOR DESCRIPTION
The nke A.I.S. Receiver/Processor combines a highly sensitive receiver working on the 2 VHF
frequencies dedicated to A.I.S. with an internal programmable processor to calculate the range
and bearing of the alarm target, its CPA (Closest Point of Approach) and TCPA (Time Closest
Point of Approach).
A rotating button allows the selection between 4 alarm ranges:
1. Off
2. Alarm if CPA < 6 nautical miles and TCPA < 30 minutes
3. Alarm if CPA < 4 nautical miles and TCPA < 20 minutes
4. Alarm if CPA < 2 nautical miles and TCPA < 15 minutes
The LED indicator will flash green when the unit receives a valid signal from the GPS, and red
when receiving A.I.S. messages.
The GPS input uses a 2 wire connection. NMEA output sentence « RMC » must be selected on
the GPS unit.
A VHF antenna for A.I.S. reception is connected to the BNC socket.
A 2 wire connection (NMEA+ and NMEA-) outputs the signal to the RS232 port of a PC. All
A.I.S data received by the Receiver/Processor can be used by a dedicated software.
A 5 wire cable connects the Receiver/Processor to the Topline system. The Gyrographic
display will receive the alarm messages. The Topline bus also supplies power to the A.I.S
Receiver/Processor .
VHF antenna
To the Gyrographic
Rotating
button
LED
Output to
PC
GPS signal
input

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1.3.OPERATION
1.3.1. Collision avoidance data processing
The A.I.S Receiver/Processor continually processes the signals received on the 2 A.I.S.
frequencies. For each A.I.S. message received, it will check the safety zone and generate
alarms according to the level activated:
Alarm if CPA < 6 nautical miles and TCPA < 30 minutes
Alarm if CPA < 4 nautical miles and TCPA < 20 minutes
Alarm if CPA < 2 nautical miles and TCPA < 15 minutes
CPA, TCPA, bearing and distance of the target are calculated and sent to the Gyrographic.
Alarm principle
The CPA and TCPA values are chosen with the rotating button to define the safety range. The
unit will generate an alarm if a target is detected and its CPA and TCPA are both below the
level defined.
In the example (figure 2) the alarm level selected is « CPA < 4 Nm and TCPA < 20 minutes ».
When the value of the CPA calculated is below 4 nautical miles and the TCPA calculated is
less than 20 minutes, an alarm message will be sent to the Gyrographic. For CPA below 4
nautical miles with a TCPA greater than 20 minutes, no alarm will be sent.
Target
TCPA 20 mn
TCPA 10 mn
TCPA
4 nauticals milles
Relative course
CPA
Bearing / distance
Figure 2: Alarm range CPA 4 Mn and TCPA 15 minutes

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1.3.2. How is collision avoidance data displayed on the Gyrographic ?
When receiving the first collision avoidance message from the A.I.S Receiver/Processor the
system sounds an alarm and displays a Collision Alert page on the Gyrographic.
Press the
Page
button once to quit the alarm and display the collision avoidance data.
WARNING
Pressing the
Page
button quits the COLLISION ALERT page as long as the unit
receives collision avoidance messages. It will be active again in standby mode 30 seconds after
the reception of the last collision avoidance message.
Collision avoidance data:
Target’s MMSI number
Bearing and distance to the target
TCPA
CPA
11
Auto
Stop
Page
Ent
AIS
COLLISION
DANGER
!
11
Auto
Stop
Page
Ent
AIS - Collision Danger
SHIP MMSI 923456789
BEARING:69° Dist: 9.0Mn
Collision data:
Time: 35min Dist: 2.0Mn

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The collision avoidance page can display data for two targets simultaneously. The target with
the lowest CPA value will display on the top.
You can scroll through the pages “Pilot”, “Multifunction”, “Main Menu” and back to « A.I.S » at
any time by pressing the
Page
button.
1.3.3. Fault states
1.3.3.1. No GPS signal (no-fix or out of order)
If the system receives invalid GPS sentences (GPS no-fix) the collision avoidance data will be
processed with the last valid GPS position data received within the last 4 minutes. If GPS
position data has been invalid for longer than 4 minutes, the A.I.S. page will be frozen and will
no longer be available once the user displays another page (i.e. “Pilot”…).
1.3.3.2. Lost connection between the Gyrographic and the A.I.S
Receiver/Processor
If the Gyrographic and the A.I.S Receiver/Processor are not able to communicate, the
Gyrographic will display an alarm message.
11
Auto
Stop
Page
Ent
AIS - Collision Danger
Ship MMSI 923456789
Bearing: 69° Dist: 9.0Mn
Colision data:
Time: 35min Dist: 2.0Mn
Ship MMSI 785234468
Bearing:23° Dist: 6.4Mn
Collision data:
Time: 19min Dist: 1.2Mn
11
Auto
Stop
Page
Ent
AIS
CONNECTION
LOST
!

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1.4.TECHNICAL SPECIFICATION
•Dual frequencies (161.975 MHz – 162.025 MHz simultaneously)
•Sensitivity <-106dbm
•Processes both AIS class (A and B) messages
•Power supply: 12 volts
•Power consumption: ~ 100mA
•GPS input NMEA0183 (4800 bauds). Uses « RMC » NMEA sentence
•PC output NMEA0183 (38400 bauds). « RMC » sentences are multiplexed with A.I.S.
messages.
•Protection IP20 (not waterproof)
•Weight 250g
•Dimensions: 145mm x 65 mm x 40 mm
2 FIRST-LEVEL TROUBLESHOOTING
In this section you will find information to help you handle small problems yourself. Please take
time to read the table for solutions before calling technical support.
Issue
Possible Causes and solutions
GPS is powered on but the LED indicator does not
flash green
The LED indicator does not flash red, while a vessel
transmitting A.I.S. is in range
The PC navigation software does not read any
A.I.S nor GPS data
Check the GPS output. NMEA 4800 bauds and « RMC »
sentence outputs are required.
Check wiring for VHF antenna or splitter
Check the serial port parameters. The RS232 input must
be 38400 bauds
In the event that you cannot solve the problem by yourself, please contact you dealer.
3 INSTALLATION
3.1.LIST OF ACCESSORIES
- 90-60-417: Topline connection kit. Junction box and cables .
3.2.INSTALLATION CAUTION
The A.I.S Receiver/Processor is not waterproof. It must be installed in a protected
environment.
3.3.MOUNTING THE A.I.S. RECEIVER/PROCESSOR UNIT
The unit is fastened with Ø 4mm screws.

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Figure 3
3.4.CONNECTING THE A.I.S. RECEIVER/PROCESSOR UNIT
WARNING
All Topline bus connections must be performed while the system is powered off.
The Gyrographic chosen to display A.I.S data must be exclusively dedicated and not receive
any other NMEA data.
Run the cable from the junction box situated near the dedicated Gyrographic to the A.I.S.
display.
- Connect the white wires and the shield in the junction box
- Connect the green wire to NMEA – position, and the yellow wire to NMEA+ position
- Use the BNC socket to connect either the VHF antenna that you dedicate to A.I.S., or the
splitter box if you use the existing VHF antenna.
- Connect the GPS to the GPS input. Check that the GPS unit outputs « RMC ».
- Connect the 9 pin plug to the serial port of the PC running navigation software with A.I.S.
features. Use either a serial RS232 port or a USB/RS232 adaptor.
Dimensions in mm

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Should you need to reduce cables lengths, we recommend tinning the ends before connecting.
•Gyrographic cable wires color codes
Gyrographic cable wires Function
White + 12 volts
Shield GND
Black NC
Red NC
Yellow + NMEA
Green - NMEA
•GPS connection cable wires color codes
GPS cable Function
Brown + NMEA
White - NMEA
BLANC
GND NOIR
BLANC
GND NOIR
12V
GND
NMEA-
NMEA+
NMEA-
NMEA+
init
connetion box
90-60-417
Figure 4 : Connection AIS Receiver to the Gyrographic
BLANC
GND
NOIR
Green
Yellow
GPS
11
Aut
o
Sto
p
Pag
eEnt
AIS - Collision Danger
Ship MMSI 923456789
Bearing: 69° Dist: 9.0Mn
Colision data:
Time: 35min Dist: 2.0Mn
Ship MMSI 785234468
Bearing:23° Dist: 6.4Mn
Collision data:
Time: 19min Dist: 1.2Mn

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•PC connection cable wires color codes
PC cable Function
Brown + NMEA (pin 2 bD)
White - NMEA (pin 5 bD)
4 GLOSSARY
AIS
(Automatic Identification System) is a worldwide navigation information exchange system. It is
automated and permits vessels and shore stations to exchange information such as identity,
status, position and route using the VHF radio signal.
MMSI
(Maritime Mobile Service Identity), is a unique 9 digit code which identifies each vessel.
CPA
(Closest Point of Approach) is the shortest distance to the meeting point of two vessels in
approach.
TCPA
(Time Closest Point of Approach) is the time remaining until CPA .