Data Conversion - Raymarine SL72 Owner's Handbook Manual

Chapter 8: Installation
SL72RC PLUS Combined Radar/Chartplotter Display
On the SL72RC PLUS Combined Radar/Chartplotter, the NMEA output
connector is a 4-pin connector as illustrated below. The 1.5 m NMEA OUT
cable has a ferrite clamp attached to ensure EMC conformance.
Figure 8-21: NMEA Output Connector

Data Conversion

The SL72 and SL72RC PLUS displays convert some information across the
communications links as follows:
This enables data received by the display to be passed to other instruments. For
example, if you have a master and a repeater display, you only need to connect
NMEA In to the master display, which will pass the data to the repeater via
SeaTalk.
You can prevent NMEA heading data being bridged onto the Seatalk bus -
refer to Bridge NMEA Heading on page 7-9.
Note: To transfer NMEA data, or to convert the data, the display must be pow-
ered On.
NMEA OUT connector
Pin 2, white
Pin 5, screen
3
Rear of display
4
NMEA In to NMEA Out and SeaTalk
SeaTalk to NMEA Out
NMEA OUT connector
Pin
2
3
4
Pin 3, blue 5
Pin 4, not connected
*Pin 1 does not exist on this connector
2
NMEA out
5
Pin name Function
NMEA_GND NMEA ground
NMEA_SIG NMEA data output
N/C N/C
CGND Screen
8-35
D4254_1