Embedded Access, David Chin electronics, embedded access control provided by Hung Chin electrons. Embedded Access | Hung Chin Electronics | Embedded access one machine is hung Chin Guangzhou Electronic Technology Co., Ltd. (www.ch-m2m.com) 2014 年 new upgrade launch controller built-in hardware watchdog, to prevent crashes; controller With power detection function, even unexpected power system can ensure data intact; controller power input overcurrent, overvoltage, reverse voltage protection embedded access controller, accidental wiring errors will not damage the controller; provided power locks power has overcurrent protection; All input / output ports have instant overvoltage protection; communication port has instant overvoltage protection, effectively prevent static and pulse interference. Identification: Card password card + password card or password controllers work: safe way normally open mode (support the first card to open the door) Event Log: Event abnormal normal credit card swipe event input multiple output devices event alarm events: the door opened out illegal door input and output settings: a set of input and output terminals of a door sensor switch status input terminals of a group of open button input output terminal group dynamic voltage electric lock to protect all input and output terminals are all with dynamic voltage protection with instantaneous relay output terminals are too Delay pressure protection door, the door opened overtime alarm from 1 to 255 seconds, you can set up a network to communicate via software: an RS-485 communication port, connect the controller and control host communication rate: 9600bps Controller Capacity: Each controller supports up to 5000 cardholders (At this event record number of 500) each controller can store up to 3000 out of the event record (in this case the number of users to 500) the number of cardholders and event records can be dynamically configured power management software application products through: unmanned substations; telecommunications, postal: unmanned station; residential, schools, hospitals, hotels, warehouses and other management units; safety requirements of high places, such as financial institutions, government agencies and other enterprises.