Onwa KS-200A User Manual

KS-200A/B

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OPERATOR`S MANUAL

AIS Class B Transponder KS-200A

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KS-200A/B

AIS Receiver KS-200B

SAFETY INSTRUCTIONS

Safety Instructions for the Operator

Safety Instructions for the Installer

WARNING

Do not open the equipment.

Only qualified personnel should work
inside the equipment.

Do not disassemble or modify the
equipment.

Fire,electrical shock or serious injury
can result.

Immediately turn off the power at
the switchboard if the equipment is
emitting smoke or fire.

Continued use of the equipment can
cause fire or electrical shock.Contact
a ONWA agent for service.

Use the proper fuse.

Use of a wrong fuse can damage the
equipment or cause fire.

Be sure the power supply is
compatible with the equipment.

Incorrect power supply may cause the
equipment to overheat.

WARNING

Do not open the cover unless totally
familiar with electrical circuits and
service manual.

Improper handling can result in
electrical shock.

Turn off the power at the switchboard
before beginning the installation.

Fire or electrical shock can result if the
power is left on.

Be sure that the power supply is
compatible with the voltage rating
of the equipment.

Connection of an incorrect power
supply can cause fire or equipment
damage.

Use the proper fuse.

Use of a wrong fuse can damage the
equipment or cause fire.

Table of Contents

FOREWORD 1

SYSTEM CONFIGURATION 6

KS-200A BASIC OPERATION 8

KS-200B BASIC OPERATION 9

INSTALLATION 10

1. Scope of Delivery 10

2. Power Connection 10

3. Antenna Installation 10

4. Installation of GPS Antenna 11

5. Installation of VHF Antenna 12

6. Connect to other navigational equipment 13

7. Connection to PC 14

8. Data Serial Port 14

MAINTENANCE and TROUBLESHOOTING 15

1. Maintenance 15

2. Troubleshooting 15

CONNECTION DIAGRAM 16

DIMENSIONS 17

FOREWORD

How AIS Works

1. What is AIS

AIS stands for Automatic Identification System. AIS increases

navigational safety and collision avoidance by transmitting vessel

identification, helping to reduce the difficulty of identifying ships when

not in sight (e.g. at night, in radar blind arcs or shadows or at distance)

by broadcasting navigational intentions to other vessels by providing ID,

position, course, speed and other ship data with all other nearby ships and

land based stations.

According to IALA regulations, AIS is defined as follows:

AIS is a broadcast Transponder system, operating in the VHF maritime

mobile band. It is capable of sending ship information such as

identification, position course, speed and more, to other ships and to shore.

It can handle multiple reports at rapid update rates and uses Carrier Sense

Time Division Multiple Access (CSTDMA) technology to meet these high

broadcast rates and ensure reliable and robust ship to ship operation.

The IMO defines the performance standards as follows:

Ship to ship working, ship to shore working, including long range

application, automatic and continuous operation, provision of information

messaging via PC and utilization of maritime VHF channels.

2. What AIS classes do exist?

There are two classes of AIS units fitted to vessels, Class A and Class B.

In addition AIS base stations may be employed by the Coastguard, port

authorities and other authorized bodies. AIS units acting as Aids to

Navigation (A to N) can also be fitted to fixed and floating navigation

markers such as channel markers and buoys.

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2.1 Class A

Class A units are a mandatory fit under the safety of life at sea (SOLAS)

convention to vessels above 300 gross tons or which carry more than 11

passengers in International waters. Many other commercial vessels and

some leisure craft also may be fitted Class A units.

The Class A operation consists of three different types of messages:

Dynamic information:

position of the ship (derived from GPS)

time, when the position was measured in UTC

course over ground (COG)

speed over ground (SOG)

heading (HOG)

ship status

rotational speed/turn rate

Static information:

MMSI number

call sign and name of the vessel

length and width of the vessel

IMO-number of the vessel, if existent

type of vehicle

position of the GPS sensor onboard

Journey-related information:

draught of the vessel

type of cargo

port of destination and estimated time of arrival (ETA)

route plan, optional compulsory way, depending on the vessels

movement.

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The following table shows the mandatory repetition rate of class A

transmissions linked to the ship`s movement:

anchored vessels 3 minutes

vessels at 0 14 kn 10 seconds

vessels at 0 14 kn, fast maneuver 3.3 seconds

vessels at 14 23 kn 6 seconds

vessels at 14 23 kn, fast maneuver 2 seconds

vessels at > 23kn 2 seconds

vessels at > 23 kn, fast maneuver 2 seconds

Static information as well as information belonging to the journey is

dispersed every 6 minutes.

The reporting intervals correspond to both radio channels (161.975 MHz,

162.025 MHz) together.

2.2 Class B

C

lass B: EN62287, 2005:

class B operation is described in the standard EN62287, published in

2005. This document is obligatory for class B.

Class B units are designed for fitting in vessels which do not fall into

the mandatory Class A fit category.

The KS-200A is a Class B AIS unit

Reporting intervals are:

Dynamic ship data:

boats at < 2 kn: 3 minutes

boats at > 2 kn: 30 seconds

Static ship data (similar to class A): 6 minutes

These intervals are the standard operation modes. Competent authorities,

like base stations, can have influence on the reporting intervals (as they

do with class A as well). Interval timing can be reduced down to 5

seconds in exceptional cases. There is no automatism to change the

30sec/3min dynamic intervals by the ship itself.

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