Raytheon HSB L755, Owner'S Handbook Manual

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2-40 HSB Series L755 and L760 Fishfinder
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The SeaTalk input/output should be connected at the rear SeaTalk 3-pin
connector. This appears as follows, when viewed from outside:
Figure 2-29: SeaTalk Connector
Note:
1. The display does not supply 12 V via the SeaTalk connector, nor does the
SeaTalk connector require 12 V to operate.
12 V is required for other SeaTalk units (except where SeaTalk is con-
nected only between two HSB displays).
2. 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
compass 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.
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 2.2
for further details.
Table 2-5: 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