What is a ZigBee Wireless Network?
ZigBee networks can be cluster, star or mesh networks as shown in the diagram. Each ZigBee network
has one device that is setup as a coordinator that controls and initialises the network.
Other devices can either be setup as routers that can pass data or as End Points, that can
only have one connection. End points or Reduced Function Devices can be set to sleep mode
so they use very little power and so can be battery operated.
Because of this very low power requirement, ZigBee is ideal for sensor networks or other
control applications, which require:
- Low to medium data rates
- Lots of nodes (up to 65,565)
- Easy addition or removal of nodes from network
- robust mesh network that doesn't fall over if one node fails
- very low power, battery operated equipment
- Long range
The management software that comes with all Sena ZigBee products makes it very easy
to setup the coordinator, routers and end points to create the network. Most users
use a ZigBee USB dongle as the Coordinator and either ZigBee serial adapters or embedded
modules as routers or end points but all can easily be configured by you to be different types.
Any ZigBee product from other manufacturers can be used with these Sena units providing they conform to
IEEE 802.15.4 standard. This means that a ZU-10 USB to ZigBee adapter can be used as a network coordinator
for a huge range of sensors and control units and provide a PC interface at the same time.
Instant ZigBee Network Control
The ZU10 series are USB to ZigBee products that can create a wireless network linked to
a PC. They are extremely flexible and can be set up very easily to be the ZigBee network coordinator
with other units forming the rest of the network. These can be
- ZS10 ZigBee serial adapters for wireless enabling units with serial ports
- ZE10 embedded modules for creating your own ZigBee sensors or control unit
- ZigBee sensors and units from other manufacturers
ZS10 serial adapters can also be set as a network coordinator if that suits your requirements better. All Sena units come with
easy to use control and setup software to create your network.
ZU10 USB to ZigBee Product
ZS10 Serial to ZigBee Product
The combination of these two ZigBee products gives you a ZigBee network with ranges up to 1.5KM.
You do not need to understand ZigBee or wireless and you don't need to modify your
existing equipment. With setup and management via Windows Management Software, Telnet or
a Terminal Program, you have all the flexibility you need.
Embedded ZigBee to Serial Modules
Sena embedded ZigBee modules are the best products on the market. They have built-in
RS232, ADC and General I/O interfaces. This means you can use them to create a wide range of ZigBee enabled sensors and
controllers. They are supplied with an on-board chip antenna or with external antenna connectors. Alternative antennas
are available to give up to 1.5Km range.
A Starter kit is available to get you going with the modules.
|Embedded ZigBee modules
|Starter Kit for Embedded ZigBee modules
Other Wireless Solutions
Kanda have alternatives to Bluetooth wireless. If you are not sure which wireless solution is best for your application, here is
a comparison chart giving the features of three wireless protocols, Bluetooth, ZigBee and WiFi
Monitoring and Control
Email, Web, Video
Physical/ MAC layers
11 & 54 Mbits/sec
Point to hub
Ad-hoc, very small networks
2.4 and 5 GHz
Complexity (Device and application impact)
Number of devices for Network
32 per access point
Network Latency New slave enumeration
Join an existing network in <30ms
Connection 3-5 seconds
Connection up to 10 seconds
Industrial control and monitoring, sensors
Wireless LAN connectivity
Wireless connectivity between devices