DAHUA DHI-ASC2204C-H Access Control Box Master Controller RS-485 Interface

The DAHUA DHI-ASC2204C-H serves as a master controller designed to manage elevator control modules and access systems. This unit supports the RS-485 interface, facilitating flexible reader integrations and allowing for sub-controller configuration via web services. The system monitors events such as tampering, intrusion, timeout, duress, and invalid card attempts, issuing alarms when necessary. Constructed with a robust metal housing, this device provides secure storage for access control electronics in commercial and residential environments. It functions as a central hub for coordinating multiple inputs and outputs within a security infrastructure.