5ContentsSafety Information ................................................................................................................... 2Important safety instructions .................................................................................................................................................... 4Introduction.............................................................................................................................. 6Preface ...................................................................................................................................................................................... 6Standard accessories ............................................................................................................................................................... 7About the user manuals ............................................................................................................................................................ 7System requirements for a PC .................................................................................................................................................. 8Trademarks and registered trademarks .................................................................................................................................... 8Abbreviations ............................................................................................................................................................................ 8GPL/LGPL ................................................................................................................................................................................. 9Copyright .................................................................................................................................................................................. 9Disclaimer of warranty .............................................................................................................................................................. 9Warranty for U.S........................................................................................................................................................................ 9Network security ..................................................................................................................................................................... 10Limitation of liability ................................................................................................................................................................ 10About HDD Unit ...................................................................................................................................................................... 10About Additional Camera Kit (option) ..................................................................................................................................... 10About Secure Communication Kit (option).............................................................................................................................. 11Precautions ............................................................................................................................ 12Major operating controls and their functions ..................................................................... 15Front view................................................................................................................................................................................ 15Inside the front cover .............................................................................................................................................................. 17Rear view ................................................................................................................................................................................ 18User/Host management........................................................................................................ 20When operating from a PC via a network ............................................................................................................................... 20HDD unit ................................................................................................................................. 21Handle the HDD units ............................................................................................................................................................. 21HDD unit holding bracket ........................................................................................................................................................ 21When you transport the recorder ............................................................................................................................................ 22Install the HDD unit in recorder ............................................................................................................................................... 23Remove the HDD units from recorder ..................................................................................................................................... 24Remove the extension unit from recorder ............................................................................................................................... 24Troubleshooting ..................................................................................................................... 25Specifications 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