What are the two main types of alarm system configurations?

The two main types of alarm system configurations are indeed wired and wireless systems. Wired systems involve physical connections, typically using cables to link the components, which can offer reliable performance and power directly from the electrical wiring. They are often preferred for permanent installations where tampering can be minimized and power stability is assured. On the other hand, wireless systems use radio signals to communicate between the components, providing flexibility in installation and the ability to easily expand the system. This configuration is particularly advantageous when it comes to retrofitting systems into existing structures without the need for extensive wiring.

While options like analog and digital refer to the types of signal processing used within alarm systems, they don't categorize the configuration of the systems themselves. Similarly, indoor and outdoor systems describe the intended use cases rather than the fundamental setup of the alarm systems. The distinction of central and decentralized systems can be relevant in specific contexts, but it’s not as universally recognized as the wired versus wireless classification for alarm configurations. Thus, the classification into wired and wireless systems accurately reflects the primary methods of connecting and communicating within alarm systems.