Technical requirements
You might have already registered for an SAP BTP trial account, as suggested in the Technical requirements section of Chapter 3, Establishing the Foundation for SAP Business Technology Platform. If not, check it out and register for a trial account.
In this chapter, we will talk about an on-premise component called SAP Cloud Connector. If you want to get your hands dirty with it, you can download it from https://tools.hana.ondemand.com/#cloud. Also, for trial purposes, you can install on-premise SAP systems using SAP CAL at https://cal.sap.com/. Just be careful as these systems could incur very high costs.