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NMEA 2000 Giving Customers What They Want:
Choices and Flexibility
They Deserve Today & Tomorrow
IBEX 2011 Louisville, KY
Property of NMEA Do not copy or redistributed with NMEA permission
“Open” Marine Networking Interface Standard
• NMEA 2000 Standards Committee established in 1994
• Multi-national marine electronics committee under NMEA guidance
• 5 years in development
• 2001 commercially viable in U.S.
• Adopted as the International Standard (IEC 61162-3)
NMEA 2000 is…
Property of NMEA Do not copy or redistributed with NMEA permission
Members • Academia - Kansas and Oklahoma State,
• Networking and Computer Industry
• Marine Electronic Companies,
• U.S. Coast Guard Research & Development
Beta tested 18 months under NMEA guidance • U.S. Coast Guard • Marine Electronics Manufacturers
• Furuno USA, JRC, Litton Marine, Navionics, Northstar, Raymarine, Simrad, Teleflex, Trimble, Wood Freeman
• CAN Manufacturers • Kvaser, Vector Can Tech
Brief History
Today more than 100 companies worldwide
Europe, Asia, Australia New Zealand, U.S.
All categories of electronics and electrical are represented
Property of NMEA Do not copy or redistributed with NMEA permission
• Main Document
• Appendix A (Application Layer)
• Appendix B (Database of Messages)
• Appendix C Certification Criteria and Test Methods)
• Appendix D (Application Notes)
• Appendix E ISO 11783-3 Data Link Layer
• Appendix F ISO 11783-5 Network Management
• Appendix G ISO 11898 Controller Area Network
8 Documents Comprise the Standard
Property of NMEA Do not copy or redistributed with NMEA permission
Some Key Requirements
• Proven, robust, safe
• Message prioritization (bit by bit arbitration)
• Scalable (252 addresses)
• Data creation simplified
• Certification testing
• Standard cables and connectors
• 250 Kbits/sec (50 times faster than 0183)
• Controller Area Network (CAN)
Property of NMEA Do not copy or redistributed with NMEA permission
Cables / Connectors Open Devicenet Vendor Association (ODVA)
• FT 4 flame rating specifications • Meets UL Class 2, UL 1677 oil resistance and NEC CL2 • IP67 rated, 65 lb pull strength • Key screw-on connectors • Accepted by Lloyd’s Register • Meets U.S.C.G. regulated vessel-wiring requirements • Meets U.S.C.G. regulated vessel safety concerns
Standardized Cables & Connectors
Property of NMEA Do not copy or redistributed with NMEA permission
Power Tees Tee Connectors
Terminating Resistors-2
Backbone & Drop Cables
Physical Network Parts
Property of NMEA Do not copy or redistributed with NMEA permission
Name Pair Color Shield Drain Bare NET-L Data Blue NET-H Data White NET-C Power - Black NET-S Power + Red
The Cabling
Property of NMEA Do not copy or redistributed with NMEA permission
Shield / Drain NET-S Power +
NET-C Power -
NET-H Data
NET-L Data
The Cabling
Foil Shield
Braid Shield
BLUE NET-L Data (24 AWG)
WHITE NET-H Data (24 AWG)
BLACK – NET-C (22 AWG)
RED+ NET-S (22 AWG)
Alignment Key
Shield / Drain (22 AWG)
Connector Cut Away
Property of NMEA Do not copy or redistributed with NMEA permission
• Connects each individual device to the backbone
TEE
MALE Backbone
Connection
FEMALE Backbone
Connection
Property of NMEA Do not copy or redistributed with NMEA permission
FEMALE Drop
Connection
• Required at each end of the network backbone • 120 Ohm ¼ watt resistor • Prevents and limits signal reflection
Terminating Resistors
Property of NMEA Do not copy or redistributed with NMEA permission
• Supplies Power to the NMEA 2000 backbone • 9-16 VDC
Power Adapters
Property of NMEA Do not copy or redistributed with NMEA permission
Property of NMEA Do not copy or redistributed with NMEA permission
A Simple System
• Add and subtract products without network interruption • NMEA 2000 single cable replaces wiring up to 50
NMEA 0183 interconnections • Boat builder testimony (26 meter pleasure craft)
• 1000 pounds less weight
• 2 weeks faster to market
Property of NMEA Do not copy or redistributed with NMEA permission
Some Key Benefits
In-Line Terminating
Resistor Location
• Long cable runs up the mast • Most masts are greater than 6
meters • In-Line terminating resistors
are used • Terminates the backbone at
the top of the mast
Property of NMEA Do not copy or redistributed with NMEA permission
In-Line Terminating
Resistor
Terminating Resistor is
molded into the manufacturer’s
connector
NMEA 2000
Property of NMEA Do not copy or redistributed with NMEA permission
• For use when cables need to be cut (snaking etc.) • Provides a waterproof connection with strain relief
Field Installable Connectors
Property of NMEA Do not copy or redistributed with NMEA permission
• All NMEA 2000 products are certified
• Behave in a known and predictable manner • Ensures safe and accurate communication
• Over a 100 tests validated by NMEA • Expose any flaws or weaknesses in the protocol
implementation • Listing of certified products – www.nmea.org
• Beware of “Compatible” or “Works With”
Property of NMEA Do not copy or redistributed with NMEA permission
Product Certification
NMEA 2000 Network Messages
Property of NMEA Do not copy or redistributed with NMEA permission
www.nmea.org
NMEA 2000 Network Messages
Property of NMEA Do not copy or redistributed with NMEA permission
NMEA 0183 Wind Data
NMEA 2000 Certified
0183 Gateway
Connecting to Other Data Sources
Property of NMEA Do not copy or redistributed with NMEA permission
NMEA 2000 Certified
USB Gateway
Property of NMEA Do not copy or redistributed with NMEA permission
Connecting to Other Data Sources
NMEA 2000 Certified
0183 Gateway
NMEA 2000 GPS information is sent to
VHF radio for DSC broadcast
NMEA 2000
Connecting to
Other Data Sources Property of NMEA Do not copy or redistributed with NMEA permission
Engine Controller 2 Engine
Controller 1
NMEA 2000
NMEA 2000 Cable/Connector
Property of NMEA Do not copy or redistributed with NMEA permission
Engine Interface Units
NMEA 2000
NMEA 2000 Cable/Connector
Property of NMEA Do not copy or redistributed with NMEA permission
Traditional
Property of NMEA Do not copy or redistributed with NMEA permission
NMEA 2000
Property of NMEA Do not copy or redistributed with NMEA permission
Traditional
Property of NMEA Do not copy or redistributed with NMEA permission
NMEA 2000
Property of NMEA Do not copy or redistributed with NMEA permission
Traditional NMEA 2000
Property of NMEA Do not copy or redistributed with NMEA permission
Traditional NMEA 2000
Property of NMEA Do not copy or redistributed with NMEA permission
LIGHTSTBD NAVIGATION
MAST NAVIGATIONLIGHT
MAIN DC CIRCUIT
LOWER HELM
UPPER HELM SWITCH PANEL
SWITCH PANEL
BREAKER PANEL
BATTERY BANKTRIM TABS
WINDLASS
Traditional
Property of NMEA Do not copy or redistributed with NMEA permission
NMEA 2000
SCI
SCI
OI MODULEF/BRIDGE
OI MODULEAFT
NMEA 2000 BACK BONE
OI
OI
TRIM TABS
WINDLASS
OI MODULEFWD CBN
BATTERY BANK
UPPER HELM
LOWER HELMSCI MODULE
SCI MODULE
MAST NAVIGATIONLIGHT
Property of NMEA Do not copy or redistributed with NMEA permission
LIGHTSTBD NAVIGATION
MAST NAVIGATIONLIGHT
MAIN DC CIRCUIT
LOWER HELM
UPPER HELM SWITCH PANEL
SWITCH PANEL
BREAKER PANEL
BATTERY BANKTRIM TABS
WINDLASS
Traditional
Property of NMEA Do not copy or redistributed with NMEA permission
NMEA 2000
SCI
SCI
OI MODULEF/BRIDGE
OI MODULEAFT
NMEA 2000 BACK BONE
OI
OI
TRIM TABS
WINDLASS
OI MODULEFWD CBN
BATTERY BANK
UPPER HELM
LOWER HELMSCI MODULE
SCI MODULE
MAST NAVIGATIONLIGHT
Property of NMEA Do not copy or redistributed with NMEA permission
NMEA 2000 Traditional
Property of NMEA Do not copy or redistributed with NMEA permission
NMEA 2000 Traditional
Property of NMEA Do not copy or redistributed with NMEA permission
• Future-Proof • Alarms and Faults – A set of tools for a suite of alarms and
faults. • Power Generation – Status and control of power generation
devices, such as generators, alternators, inverters, hybrids, and shore power on ships.
• Electrical Distribution – Delivery of power on vessels; identifying loads, load sharing, and virtual breakers
• Galileo • E-Navigation • AIS Updates
NMEA 2000
Property of NMEA Do not copy or redistributed with NMEA permission
• Increasing Your Profitability • Simple Installation • Less Weight • Boosts Employee Productivity
• Eliminates Hidden Costs / Employee Training /Error Reduction
• Faster to Market • One Backbone Replaces the “Old” Standard Harness • Reduction in Parts Inventory and Warehousing Costs
NMEA 2000
Property of NMEA Do not copy or redistributed with NMEA permission
• Customers Want Choices • Customization and Integration of Products
• NMEA 2000 Certified Products Provide Choices
• No Need to be Locked in with One Vendor
• One Manufacturer Does Not Need to “Own” the Boat
• Give Customers the Best of Class
Property of NMEA Do not copy or redistributed with NMEA permission
Give Customers What They Want
Questions?
Property of NMEA Do not copy or redistributed with NMEA permission
NMEA 2000 Gives Customers the Choice and the Flexibility They Deserve Today & Tomorrow