# Planning the system

The first step is to define the [s2-node-types](https://help.boomerang3.com/s2-radio-system-manual/s2-system-description/s2-node/s2-node-types "mention") depending on the parameters and devices to be monitored. Then a list of all the nodes shall be created with their respective firmware versions, interfaces, sensor types and[radio-net-id-and-node-id](https://help.boomerang3.com/s2-radio-system-manual/s2-system-description/network-structure/radio-net-id-and-node-id "mention") parameters.

Then the map of the network shall be created taking into account the fact that the maximum distance of radio communication is about 30 m and it can be smaller in case of thick walls or other obstacles on the way of transmission. 

The PC node shall be located in the middle of the network.

For the nodes which are far away from the PC node [linking](https://help.boomerang3.com/s2-radio-system-manual/s2-system-description/s2-node/s2-communication-protocol/linking "mention")may be used. It is not recommended to use more than 2 linking nodes on the path especially in the networks with more than 20 measuring nodes because linking increases the time of communication with a node as it includes multiple radio communications. If linking is used, it may be necessary to increase the PC node timeout