18.5 Upgrade System ........................................................................................................... 178
18.5.2 Upgrade by FTP ................................................................................................... 178
18.7 System Service.............................................................................................................. 180
19.4 Manage User Accounts................................................................................................. 186
19.4.1 Add a User ........................................................................................................... 186
19.4.6 Delete a User ....................................................................................................... 193
Chapter 20 Appendix .......................................................................................................... 194
20.1 Glossary ........................................................................................................................ 194
20.2 Troubleshooting ........................................................................................................... 196
Network Video Recorder User Manual
15