• LonWorks Solutions for Open Systems Building Automation
• Applications Stories
• Standards Update
• White Papers
• LonWorks Comparative Analyses
• Network Integrators
• LonMark Interoperability
• LonWorks Technology At Work In Buildings Around The World
• Read about Echelon's New Headquarters in San Jose

Defining an Open System

In the past, building control systems were a loose collection of subsystems such as lighting and heating, ventilation, and air-conditioning (HVAC).

Echelon broke down the walls that separated these subsystems. Instead of treating a building as a collection of use-specific applications, we approached the market with a pioneering holistic approach: Treat every device in the building as a equal on a control network. Now, instead of needing three motion sensors -- one each for lighting, HVAC, and security -- building integrators can use a single motion sensor for all their systems.

We call this type of a building system an open, peer-to-peer network. The benefits?

• It costs less to install.
• It's more expandable and easier to manage.
• It's extremely flexible.
• You can easily integrate it with future building automation technologies such as XML and IP.
  

LonMark Open Systems

• Contain LonMark certified products from multiple manufacturers
• Use the LNS network operating system, which includes a database that holds the image of the building control system
• Don't require gateways, except to interact with legacy systems or as required by codes

Whenever possible, end users and consultants should specify the use of LonMark certified products, as well as LNS based network tools for design, installation, and commissioning. The combination of open products and standard services lets integrators easily build a complete open system with products from multiple manufacturers.