2. LonWorks : Worldwide Open, Multi-vendor & Interoperable Accepted Standards
The LonTalk® Protocol: ANSI/EIA A-1999
Robust, field proven standardized protocol
Adopted by AAR, ANSI 709.1,ANSI 709.2,ANSI 709.3, EN 14908, ASHRAE, IEEE 1483, IFSF, SEMI E54, TC247 standards and LONMARK
The European prEN building control standard .
We standardize the “LONWORKS to UPnP bridge” within the UPnP Forum.
China Standard GB , &
LonTalk Protocol, Power Line Communication & Free Topolgy.
Open Data Communication in Building Automation, Controls and Building Management — Control Network Protocol
ISO/IEC  DIS : Part 1: Protocol Stack
ISO/IEC  DIS : Part 2: Twist Pair Communication
ISO/IEC DIS : Part 3: Power Line Channel Specification
ISO/IED  DIS : Part 4: IP Communication ISO/EIA Worldwide Standard EIA 852/IP 852
High performance, low cost transceivers for every application
Robust, flexible, and comprehensive network management architectures
End-to-end suite of development tools
A reliable source of supply and service
copy of power line & twisted pair standard.
AAR = American Association of Railroads
ANSI = American National Standards Institute
EIA = Electronic Industry Alliance
ASHRAE =American Society of Heating and Air Conditioning Engineers
IEEE = Institute of Electrical and Electronics Engineers
IFSF = International Forecourt Standards Forum
SEMI =Semiconductor Equipment and Materials International

3. LonWorks Open System Networks Architecture
Web Services
LNS Driver
DDE Server
OPC
Web Service
SOAP/XML
OpenLDV
LNS Server
with VNI
Enterprise System
TCP/IP
TCP/IP
WAN
i.Lon 10
LonWorks
over Internet
GSM/GPRS
i.Lon 600
IP Router
Smartserver
Power Line LonWorks
LonWorks
LonWorks
LPR router
M-Bus & Modbus other buses
HVAC Integrator
LON
LonPoint
Security Integrator

4. LonWorks Reference Control-Network Protocol Specification
ANSI/CEA (IHS, Inc.) – LonWorks networking-protocol specification.
BS EN  (IHS Inc.) – LonWorks networking-protocol specification.
GB/Z  (no link available) (SAC) – LonWorks networking-protocol specification.  
Transport Media (Transceiver Channels)
ANSI/CEA – LonMark PL-20 power-line channel specification.
BS EN  – LonMark PL-20 power-line channel specification.
GB/Z  (no link available) – LonMark PL-20 power-line channel specification.  
ANSI/CEA – LonMark TP/FT-10 free-topology and bus twisted-pair channel specification.
BS EN  – LonMark TP/FT-10 free-topology and bus twisted-pair channel specification.
GB/Z  (no link available) – LonMark TP/FT-10 free-topology and bus twisted-pair channel specification.  
ANSI/CEA – LonMark FO-20S and FO-20L fiber-optic (lightwave) channel specification.  
ANSI/CEA – Enhanced Internet-tunneling channel specification.  
ANSI/CEA-852 – LonMark IP-852 Internet-tunneling channel specification.
BS EN  – LonMark IP-852 Internet-tunneling channel specification.
GB/Z  (no link available) – LonMark IP-852 Internet-tunneling channel specification.  
Application- and Presentation-Layer Specifications (ISO OSI Layers 7 and 6)
BS EN  – “Implementation” LonMark Application-Layer Guidelines content.
pEN? ??“Application Elements” SNVTs, SCPTs, Enums, Profiles, XIF, and LW-FTP. (pEN? is not yet approved/standardised)