Integrated Systems - Raymarine SL72 Owner's Handbook Manual

Chapter 8: Installation

8.11 Integrated Systems

The SL72 PLUS display can be linked to other equipment to transfer data as
either:
• SeaTalk input and output with NMEA input
or
• NMEA input and output
The SL72RC PLUS display can be linked to other equipment to transfer data
as follows:
• SeaTalk input/output
and
• NMEA input and output
Data received via SeaTalk or NMEA can be used to increase the functionality
of the display. Other data can be viewed on the display.
Data can be transmitted via SeaTalk and NMEA to enhance other equipment.
Some incoming data can be converted across the communication link and re-
transmitted - see Data Conversion on page 8-35.
Power for External Equipment
External equipment cannot be powered from the display's SeaTalk
interface. It must be powered from the ship's supply or via a SeaTalk bus.
Ensure correct polarity of the SeaTalk connection.
For systems where the ship's power source is 24 V only, you may need to
install a 24 V to 12 V DC converter. This is only necessary if the products
being connected to the display are:
• SeaTalk compatible (for example, compass, GPS and instruments), and
there is no existing SeaTalk bus
• NMEA compatible, but operate only from 12 V (for example, compass,
GPS and some navigators)
The DC~DC converter must conform to the following specification:
Table 8-6:
Input
Output
Load
DC-DC Converter for External Equipment
21 to 32 V DC
13.6 V DC, isolated
Continuous current rating, in excess of required load
8-29