Raymarine Pathfinder Radar RL70C PLUS User Manual

Page of 248
Chapter 8: Installation
8-27
Sea
Ta
lk
®
 an
d NME
A
 
In
SeaTalk Connection
This connection is necessary for full functionality between 
hsb
2
 series 
displays. SeaTalk data, if present, is the primary source for all navigational 
data except heading. 
The SeaTalk input/output should be connected at the rear SeaTalk 3-pin 
connector. This appears as follows, when viewed from outside:
            
Figure 8-16: SeaTalk Connector 
Note: 
1
. If you use the SeaTalk connector you must fit the supplied ferrite to the cable 
for EMC CE conformance. The ferrite must be clipped to the cable as close to 
the connector as possible.
2. The display does not supply 12 V via the SeaTalk connector, neither does the 
SeaTalk connector require 12 V to operate.
12 V is required for other SeaTalk units (except where SeaTalk is connected 
only between two 
hsb
2
 displays).
3. If you are connecting an active compass to the radar, the NMEA input has 
priority. You should, therefore use an NMEA input channel (see Power and 
NMEA Input Connection) rather than the SeaTalk interface, unless the com-
pass only has a SeaTalk output.
To connect the display unit to the SeaTalk bus, connect a standard SeaTalk 
cable between the SeaTalk connector on the rear of the display and a SeaTalk 
instrument or the SeaTalk bus. For multi-display systems, use a SeaTalk 
Junction 3-way block (part number D244) at each display.
Standard SeaTalk cables are available in a range of lengths (part numbers 
W284 to W287), and cables for connecting to SeaTalk units with round 
connectors are also available (part numbers D187 or D188), see Section 8.2 
for further details.
Table 8-5:
Sea Talk Connections
Pin No.
Function
Color
1
+12 V
Red
2
0  V
Shield
3
Data
Yellow
1. Red (No internal connection)
2. Screen (0V)
3. Yellow (Data)
SeaTalk In/Out
D3232-3