# 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.&#x20;

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&#x20;
