What is the primary function of a "reader keypad" in access control?

A reader keypad serves a crucial role in access control systems primarily by allowing users to input codes or personal identification numbers (PINs) for authentication purposes. This mechanism is foundational to the operation of many electronic access control systems, where access to a secured area is granted only when the correct code or PIN is entered.

The user approaches the reader keypad, inputs their unique code, and if it matches the system's records, access is granted. This method provides a straightforward yet effective means of security, relying on something the user knows (the code or PIN) to verify their identity.

While there are other functions such as enhancing surveillance, monitoring access history, or biometric scanning—these pertain to different components of an access control system or offer additional security methods—they are not the primary function of a reader keypad. The focus of the reader keypad is specifically on the input and verification process of access codes.