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             News            

Interested in WirelessHART? Stay tuned for an announcement about a WiHART protocol stack from STG.

 

STG products among First ZigBee™ Certified Products Now Available

 

STG Announces 802.15.4 MAC Software Availability

 

Other News

 

 

       Technologies       

 

ZigBee & 802.15.4 Wireless

 

Universal Serial Bus (USB)

 

 

        White Papers      

 

Supporting Semiconductor Manufacturers with Improved Software 

 

Creating Market Opportunities for Network Equipment OEMs

 

 

Wireless Products

 

802.15.4 MAC and Core RTOS

 

Sensor Network Infrastructure

 

 

Coming Soon

 

802.15.4 Bridge

 

Router for ZigBee Networks

 

 

Information on ZigBee

 

What is ZigBee?

 

ZigBee Terminology

 

ZigBee Network Types

 

ZigBee versus other standards

 

 

 

 

 

Common ZigBee terminology

 

 

PAN

 

Personal Area Network; a collection of cooperating devices which are associated and share the same address space.

 

PAN ID

 

The 16-bit value which is used to uniquely define a PAN.  Devices make the decision on what radio networks to join based on their PAN ID.

 

PAN Coordinator

 

The ZigBee device which is responsible for starting the formation of a ZigBee network.  The ZigBee PAN coordinator chooses the PAN ID.  There is only one ZigBee PAN Coordinator in any ZigBee network; it’s ZigBee address is always 0.

 

Full Function Device

 

A device which can route ZigBee packets as part of it’s normal operation; also called a ZigBee “Router”.  FFDs form the meshed network topology by establishing communications links to other devices (both FFDs and RFDs).  FFDs can act as a sensor or actuator or other type of node.

 

Reduced Function Device

 

An RFD is a device which cannot route ZigBee packets.  They are always associated with a single FFD and can only participate in the network as an end, or leaf, node.

 

Mesh

 

A network with multiple possible routes between nodes over which a packet can be routed.  FFDs form the mesh and discover routes between nodes using a variety of routing algorithms (tree routing or AODV for example).