Supports 4 door control. It can extend up to 62 DS-K2M002X access modules, and up to 128 doors can be controlled Downstream RS-485 redundancy wiring design to ensure communication stability. 5-ch downlink RS-485 interface supports two applications: 1. When 4-ch RS-485 communication, the 5th RS-485 can be used as a redundant application; 2. 4-ch RS-485 forms 2 groups of dual-bus loops with physical isolation. It is recommended that you do not have more than 16 access modules attached to each loop bus. Web configuration management. All configurations can be realized via web without software application Supports professional access control applications such as multi-door interlocking and anti-passback Supports backup battery access. Charging and discharging are available It has status indicators such as power supply, communication and operation, which is convenient for equipment health detection
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