8-20 hsb
2
PLUS Series LCD Display
EMC Conformance
EMC Conformance
Alwayscheck the installation before going to sea to make sure that it is not
affectedby radiotransmissions,engine startingetc.
8.8 Integrated Systems
The hsb
2
series displays can be linked to other equipmentto transfer data as
follows:
• Additional displays,either CRT or LCD, can be connected via
hsb
2
(and
SeaTalk) to repeat fishfinder, chart and/or radar information at a remote
location.
• Data can be received via SeaTalk or NMEA, some of which will increase
the functionalityof the display. Other datacan be viewed on the display.
• Data can be transmittedvia SeaTalk and NMEA to enhance other equip-
ment.
• Some incomingdata can be converted across the communicationlink and
re-transmitted - see Data Conversion on page 8-30.
Power for External Equipment
Externalequipment cannot be powered fromthe display’s SeaTalk
interface. Itmust be powered from the ship’s supply or via a SeaTalkbus.
Ensurecorrect polarity of the SeaTalk connection.
For systems where the ship’s power source is 24 V only, you may need to
installa 24 V to 12 V DC converter. This is only necessary if the products
beingconnected to the display are:
• SeaTalk compatible (for example, compass,GPS and instruments),and
thereis no existingSeaTalk bus
• NMEA compatible, but operate only from 12 V (for example, compass,
GPS and some navigators)
The DC~DC converter must conform to the following specification:
hsb
2
™ (High Speed Bus) Multiple Display Systems
You can connect several hsb
2
displays; the numberis dependent on cable
length - see hsb
2
Cable on page 8-8. The system can include existing HSB
Table 8-2: DC-DC Converter for External Equipment
Input 21 to 32 V DC
Output 13.6 V DC, isolated
Load Continuous current rating, in excess of required load
81186_3.book Page 20 Thursday, August 22, 2002 8:23 AM
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