Comark RF500A - Manual (Page 36)

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Overview of RF500 Mesh Networking
The RF500 Wireless Monitoring System uses the IEEE 802.15.4 radio transmission standard to implement a radio
mesh network.
A mesh network is comprised of the following devices:
• Gateway
• Mesh Transmitter
• Transmitter
On installation each transmitter is associated with a particular Gateway by serial number. Messages are transferred
between transmitters and the Gateway using two-way communication with acknowledgement of successful message
reception.
Transmitters which are physically close to their associated Gateway such as transmitter A in Figure 18 below will
most likely transmit directly to it. Others such as transmitter B which are further away rely on meshing transmitters to
forward messages to and from the Gateway on their behalf.
The route taken by the message can vary depending on network load and link reliability. The ability to dynamically
reconfigure the network is termed self-healing. In the figure below the self-healing ability is shown.