User`s manual

System integration 19
System integration
Introduction
This chapter provides an overview of system integration and the protocols that
interface with RayTech RNS.
You may find that your system does not use all the protocols or contain all the
instrumentation that is described in it. However it is hoped that the information
supplied will help in your understanding of how systems can be integrated and used
successfully.
What is System Integration?
System integration enables various instruments and displays to communicate with
each other and use the collected data to increase the functionality of the system.
This data exchange is only possible if the data gathering is accurate, and transfer
between instruments is fast and accurate.
Fast and accurate data transfer is achieved by using a combination of the following
data protocols:
•SeaTalk.
•SeaTalk
2
.
•hsb
2
.
• National Marine Electronics Association (NMEA)0183.
What is SeaTalk?
SeaTalk
The SeaTalk protocol was originally developed by Autohelm (part of Raymarine) and
enables compatible instruments to be connected by a single cable carrying power (12
volts, 150 mA) and data in/out, without a central processor, creating a simple network.
Additional instruments and functions can be added to a SeaTalk system, simply by
plugging them into the network. SeaTalk equipment can also communicate with other
non-SeaTalk equipment via the NMEA 0183 standard.
SeaTalk
2
SeaTalk
2
protocol was developed as the Controller Area Network (CAN) based version
of SeaTalk.
.