Which component is essential for enabling remote access control in a system?

To enable remote access control in a system, Wi-Fi connectivity is essential. This is because Wi-Fi allows devices to communicate over distances without the need for physical connections. In a remote access control system, components such as servers, user interfaces, and access control devices can interact through a wireless network. This connectivity facilitates features such as monitoring, accessing security systems remotely, receiving real-time alerts, and managing access permissions from anywhere with an internet connection.

While physical keys, card readers, and manual locks are all critical components of traditional access control systems, they do not inherently provide the capability for remote access. Physical keys require a person to be present to operate the lock, card readers generally need proximity to function, and manual locks are operated physically by hand. In contrast, Wi-Fi connectivity fundamentally transforms how access control systems function by enabling a networked environment that supports remote management and real-time data exchange.