4.2.6 Alarm ControlPlease find the details of it at Chapter III 3.6.5 (Alarm Setting and Alarm Linkage Recording).4.2.7 Advanced OptionsThe Advanced Options including menu: hard disk drive management, user account, system maintenance, output regulation, Revert Default.4.2.7.1 User AccountManagement user account propertiesThe user name max character size is 8 character, the beginning and the end of the string is bland invalid, it can not be blank in the middle. Thelegal character: letter, numeral, not allowed to use the other character symbol.The user quantity max is 20pcs, the user can be added in user-defined, but the name of user can not be same repeat, the everyone user name can57