The access control system is divided into 2 parts; access controller (DS-K2704X) and 2 access modules (DS-K2M002X). The access controller can communicate with web client, card reader and access modules by RS-485 interface. The access module supports the card reader's single-point fault detection and redundant processing functions to ensure the stability of the system. It is suitable for the scenarios of subways, airports, banks, large groups and other industry projects.
