1

HDS system overview

2

Introduction

• There are 3 networks in the HDS system:– Ethernet – high speed point-to-point

– Multipoint connection requires use of NEP-1 type switch– NMEA2000 – medium speed bus– NMEA0183 – low speed point-to-point

• This presentation will explain how data is moved around the HDS system and how the 3 networks interact.

3

Limited Sonar data sharing

N2K N2K

Temp.Speed

STERN XDUCER

STERN DISPLAY BOW DISPLAY

4

Full Sonar data sharing

5

What sonar data is shared over Ethernet?

6

Dual sonar system

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Sonar Auto configuration• If I do an ‘Auto configure’ how does Sonar get

setup?– HDS will choose digital depth source as:

– Local sonar Xducer. If not available then…– HDS sonar Xducer. If not available then….– A NMEA2000 depth transducer.

– HDS will choose water temp. source as:– NMEA2000 device. If not available then…– HDS Sonar transducer. If not available then…– Local sonar transducer.

– HDS will choose water speed source as:– Local sonar Xducer. If not available then…– HDS sonar Xducer. If not available then….– A NMEA2000 depth transducer.

• Auto Configure does not setup the scroll source. This is done manually via the Sonar menu.

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Manual sonar source selection.

• Sonar scroll data source is selected under the SONAR MENU as ‘this unit’ or another HDS on Ethernet. This a global setting.– Digital Depth: From graph source in sonar

page follows the scroll data source.– Temp will change with sonar source as long

as it has not be configured to be used with a NMEA2k Temp.

• Temperature, depth and speed data source for data overlay is selected in the DATA SOURCES Menu. – If the source selected is SONAR then the

source will be the same as that in the SONAR MENU and the data obtained from Ethernet.

– If the source is not sonar then data will be obtained from NMEA2000.

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NMEA0183-NMEA2000 bridge

N2K N2K

All enabled 0183 Rx and Tx sentences

All enabled 0183 Rx and Tx sentences

TXRX

All(RS422)

TXRX

8" &10"(RS232)

(Selectable)

TXRX

10

NMEA0183-Ethernet bridge

Temp.Speed

Temp.Speed

TXRX

All(RS422)

TXRX

8" &10"(RS232)

(Selectable)

TXRX

Ethernet

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NMEA0183 data flow

• All supported NMEA0183 Receive sentences are bridged to NMEA2000.

• All enabled NMEA0183 Transmit sentences can be sourced from:– the local unit e.g. internal GPS– NMEA2000 – Ethernet (When SONAR is

source)

12

Limited waypoint sharing

13

Limited waypoint sharing over NMEA2000

• With limited waypoint sharing over NMEA2000 you can:

– Add a waypoint with name, icon, position and color to all other live HDS or LCX displays

• You CANNOT edit a waypoint on another display in any way. i.e. waypoint edits only effect your display.

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Full waypoint sharing

Ethernet

Full waypoint sychronisation

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Full waypoint sharing cont.

• When waypoints are shared over Ethernet all changes are synchronized with all other displays on the network:– Add a waypoint with name, icon, position and color– Edit all attributes– Delete– Move

• If I change a waypoint on one HDS display while the other is POWERED OFF, will the change be reflected on the other display next time both displays are POWERED ON?– YES. This will happen automatically.

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Other data shared over Ethernet

• A great new feature of HDS is that all data listed below shared over Ethernet is also automatically synchronized like waypoints.

• Routes– Not shared over NMEA2000 – Ethernet must be

connected

• Alarms– Limits and on/off settings apply to all displays.– An alarm can be acknowledged or cleared from any

display.– Alarm beeps can be turned on or off for each display.– A log of alarm events on the network is stored.

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Other data shared over Ethernet Cont.

• System settings e.g.– Language– Units

• Data sources selection– With global data source setting all displays can be pointed to

the same data source. Global is the factory setting for all datasources. Saves setup time.

– Individual data sources can also be made local. i.e. a display can be made to use a different data source to the other displays on the network.

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Data not shared over any network

• Trails– These are stored locally on each display while you are

underway. i.e. if a display is off the trail will not be stored on that display and will not be automatically transferred from another display when next powered on.

– Can be transferred via SD card.

• Backlighting– Next release

• All non-system settings– E.g text size

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HDS System with Radar and Weather

N2K

Ethernet

N2K

N2K

Ethernet

FC42 Rate Compass

LGC-4000 N2K GPS Antenna

BR24 Broadband Radar ScannerNEP-1 Ethernet

Linker

Ethernet

N2K

N2K Engine

N2K Engine

Interface

Ethernet

LWX-1 Weather Module

HDS Display HDS Display

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Radar and Weather

• Radar and Weather work over Ethernet

• Multiple displays can display/control Radar and Weather at once.

• The radar is a server i.e all radar settings are stored in the radar only. Likewise for LWX-1 weather.

• There can only be 1 radar and/or 1 weather antenna on the system.

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Going BIG!

• You can have up to 3 HDS displays on an Ethernet network.

• Can use more HDS units on the Ethernet network but speed may reduce depending Ethernet load (radar, weather, etc..)

• You can have up to 50 devices/HDS displays on a NMEA2000 network.

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Matrix of network functions

NETWORKNetwork sharing Function Ethernet NMEA2000 NMEA0183 Sonar temp, speed and depth

Sonar scroll data

Charts

Add waypoints

Full waypoint edit

Routes

Trails

Alarms

Data source settings

System settings

Non-system settings

Backlighting

Radar

Weather

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NETWORKNetwork sharing Function Ethernet NMEA2000 NMEA0183 Position

Heading

Speed over ground

Course over ground

AIS

DSC

Wind

Autopilot

Engine data

Matrix of network functions cont.