16.7 Configure Email ............................................................................................................ 177
16.9 Configure Ports ............................................................................................................. 179
17.2 Set Hot Spare Device .................................................................................................... 181
17.3 Set Working Device ...................................................................................................... 182
18.5 Upgrade System ........................................................................................................... 194
18.5.2 Upgrade by FTP ................................................................................................... 194
18.7 System Service.............................................................................................................. 196
19.4 Manage User Accounts................................................................................................. 202
19.4.1 Add a User ........................................................................................................... 202
Network Video Recorder User Manual
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