Raymarine L1250D, Owner'S Handbook Manual

Page: 61 / 246

Chapter 2: Installation 2-29
Sea
Ta
lk
an
d N
M
EA
In
Figure 2-17: Integrated System with Repeater Display and NMEA Instruments
SeaTalk
The SeaTalk standard was originally developed by Autohelm (part of the
Raymarine group) and enables compatible instruments to be connected by a
single cable carrying power and data in/out. This means that additional
instruments and functions can be added to a SeaTalk system, simply by
plugging them into the network.
SeaTalk is a precise, high-speed, bi-directional protocol which is flexible
enough to adapt to any number of instruments, without a central processor.
SeaTalk equipment can also communicate with non-SeaTalk equipment via
the NMEA standard.
SeaTalk Connection
SeaTalk data, if present, is the primary source for all navigational data except
heading.
This connection is necessary for full functionality between HD Series and
hsb
2
Plus Series displays.
The SeaTalk input/output should be connected at the rear SeaTalk 3-pin
connector. This appears as follows, when viewed from outside:
GPS
DSM250 Digital Sounder
Non SeaTalk
Pilot
12/24V Supply
PLUS Repeater Display PLUS Fishfinder Display
12V Supply
SeaTalk
Distribution
Panel
D6218-2
NMEA
NMEA Out
12/24V Supply
NMEA
Compass
Transducer
hsb
2
hsb
2
81213_1.book Page 29 Monday, March 17, 2003 1:14 PM