Dahua NVR21-4KS3 Series User Manual page 20

5.19.4.3.1 Restoring Defaults on the Local Page ..................................................................................... 430
5.19.4.3.2 Resetting Device through the Reset Button ........................................................................ 431
5.19.4.4 System Update .............................................................................................................................................. 432
5.19.4.4.1 Upgrading File .................................................................................................................................... 432
5.19.4.4.2 Online Upgrade .................................................................................................................................. 433
5.19.4.4.3 Uboot Upgrading .............................................................................................................................. 434
5.19.4.5 Intelligent Diagnosis .................................................................................................................................. 434
5.20 USB Device Auto Pop-up ................................................................................................................................................ 434
5.21 Shutdown ............................................................................................................................................................................... 435
6 Web Operation .................................................................................................................................................................................. 438
6.1 Network Connection ........................................................................................................................................................... 438
6.2 Web Login ................................................................................................................................................................................. 438
6.3 Web Main Menu ..................................................................................................................................................................... 439
6.4 Cluster Service ........................................................................................................................................................................ 441
6.4.1 Configuring Cluster IP ............................................................................................................................................. 441
6.4.2 Main Device .................................................................................................................................................................. 442
6.4.3 Sub Device ..................................................................................................................................................................... 443
6.4.4 Transferring Videos .................................................................................................................................................. 443
6.4.5 Configuring Cluster Control ................................................................................................................................. 444
6.4.5.1 Cluster Control ................................................................................................................................................. 444
6.4.5.2 Arbitrage IP ........................................................................................................................................................ 444
6.4.6 Cluster Log .................................................................................................................................................................... 445
7 Glossary ................................................................................................................................................................................................ 446
8 FAQ ......................................................................................................................................................................................................... 447
Appendix 1 HDD Capacity Calculation ..................................................................................................................................... 451
Appendix 2 Mouse Operation ....................................................................................................................................................... 452
Appendix 3 Remote Control .......................................................................................................................................................... 453
Appendix 4 Compatible Network Camera List ..................................................................................................................... 456
Appendix 5 Cybersecurity Recommendations ..................................................................................................................... 462
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User's Manual