8-26 hsb
2
PLUS Series LCD Display
SeaTalk® and NMEA
In
SeaTalk Connection
Thisconnectionis necessaryfor full functionalitybetween hsb
2
series
displays.SeaTalk data, if present,is the primary source for all navigational
dataexcept heading.
The SeaTalk input/output should be connectedat the rear SeaTalk 3-pin
connector. This appearsas follows, when viewed from outside:
Figure 8-15: SeaTalk Connector
Note:
1.Ifyouuse theSeaTalkconnectoryoumustfitthesuppliedferritetothecable
for EMC CE conformance. The ferrite must be clipped to the cable as close to
the connector as possible.
2.Thedisplaydoesnot supply12V viatheSeaTalkconnector,neitherdoesthe
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 thedisplay unit to the SeaTalk bus, connect a standardSeaTalk
cablebetween the SeaTalk connector on the rear of the displayand a SeaTalk
instrumentor the SeaTalk bus. For multi-display systems, use a SeaTalk
Junction3-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 arealso available(part numbers D187 or D188), see Section 8.2
forfurther details.
Table 8-5: Sea Talk Connections
Pin No. Function Color
1 +12 V Red
20 VShield
3 Data Yellow
1. Red (No internal connection)
2. Screen (0V)
3. Yellow (Data)
SeaTalk In/Out
D3232-3
81186_3.book Page 26 Thursday, August 22, 2002 8:23 AM
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