◆ Built-in Web Server user-friendly front-end to achieve real-time monitoring standard IE browser and setting management ◆ support two-way voice, one-way or two-way intercom pickup (Q-type products) ◆ IP access can be set to establish IP black and white list access ◆ Backup factory installed dual-core monitoring system, the system is stable and reliable ◆ abnormal automatic recovery, network outages automatic connection function ◆ OSD OSD ◆ date and time can be set manually or automatically synchronized with the server time (NTP) ◆ Support PPPOE features, support ADSL direct dial ◆ automatically obtain IP (DHCP) ◆ support many DNS (DDNS), the domain name server to avoid the problems caused connection abort analog output ◆ Local installation of monitoring systems, easy installation ◆ Support dual-stream transmission, are set to install monitoring systems manufacturers, good clarity main stream fluency, Vice stream bandwidth small convenience narrowband transmission ◆ ◆ Support remote upgrade support network camera POE power supply, convenient wiring and installation of access control systems deal with common problems Symptom 5: The valid card near the reader, the buzzer sounds, LED light turns green, but the door did not open. Possible causes: (1) the connection between the controller and electric control lock is incorrect; (2) to the power locks power supply is normal (power locks require a separate power supply); (3) electric lock failure; (4 ) bolt and locking occurs mechanically stuck; Symptom 6: A valid card near the reader, the buzzer sounds, the door is open, but the reader light off. Possible causes: (1) controller and electric locks share a power supply, reverse power locks work when potential interference, causing the controller to reset; (2) Power is not enough, resulting in the controller, the reader does not work. Install monitoring systems company, Gongyi installation of monitoring systems, source maintenance provided by Zhengzhou source maintenance Electronic Technology Co., Zhengzhou source maintenance Electronic Technology Co., Ltd. (www.hnxywb.com) strong, credible, in Zhengzhou integrated monitoring systems and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead source maintenance and you work into the brilliant, for a better future!