18.5 Upgrade System ........................................................................................................... 170
18.5.2 Upgrade by FTP ................................................................................................... 170
18.7 System Service.............................................................................................................. 172
19.4 Manage User Accounts................................................................................................. 178
19.4.1 Add a User ........................................................................................................... 178
19.4.6 Delete a User ....................................................................................................... 185
Chapter 20 Appendix .................................................................................................................................. 186
20.1 Specification ................................................................................................................. 186
20.2 Glossary ........................................................................................................................ 188
20.3 Troubleshooting ........................................................................................................... 189
Network Video Recorder User Manual
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