Raymarine ST60+ - Procedure; NMEA in and out Connectors; Connecting

Chapter 3: Installation 29
Procedure
Connect your ST60+ Graphic Display as follows:
1. Ensure that:
• Power to the existing SeaTalk system is switched off.
• The conditions described under
Power requirements are fulfilled.
2. Plug the SeaTalk cable(s) from the rear of the display into a vacant SeaTalk
connector on an adjacent instrument. You can either break an existing
SeaTalk chain, or connect to the end of the SeaTalk bus.
NMEA IN and OUT connectors
The NMEA IN and NMEA OUT connectors can be used to receive NMEA data
from and transmit NMEA data to external equipment, respectively. When the
Auxiliary Alarm option is fitted (see above), the
NMEA OUT connector is used to
connect alarm signals to an Auxiliary Alarm instead of providing an NMEA
connection.
Note: If you connect the NMEA OUT connector to an Auxiliary Alarm, you can still use
the
NMEA IN connector to receive data from NMEA.
Connecting
Although the NMEA connectors provide a useful means of interfacing with
external systems, you do not HAVE to connect to NMEA if you will receive all the
data you want from SeaTalk.
To to ensure EMC compliance when connecting the
NMEA OUT connector to an
external NMEA product, always use a shielded cable to make the connection and
connect the shield to an RF ground point at each end of the cable.
NMEA connectors
D6436-1
N
M
E
A
I
N
N
M
E
A
O
U
T
To either
NMEA 0183 system
or
Auxiliary Alarm Buzzer
From NMEA 0183
system
81268_3.book Page 29 Tuesday, August 1, 2006 8:05 AM