To use the RSCM Server, you must select the server in System Tools in the Product Selection window during the installation process.
Only the machine you intend to host the RSCM Server must have the Remote Server Configuration Manager installed.
If the only purpose of the machine is to host the RSCM Server, then you do not need to install any other products besides the Remote Server Configuration Manager (although you should still install iCDB Server Manager utility to help with troubleshooting).
After installing the software, you must configure the RSCM Server.
Optionally, from the System Tools/Services section of the Product Selection window, you can install the Server Manager from which you manage and monitor the RSCM Servers on your network. See iCDB Server Manager.