5ContentsLimitation of liability ........................................................... 3Disclaimer of warranty ....................................................... 3Important safety instructions............................................. 4Preface .............................................................................. 6About the user manuals .................................................... 6System requirements for a PC .......................................... 7Trademarks and registered trademarks............................. 7GPL/LGPL ......................................................................... 8Copyright ........................................................................... 8Network security ............................................................... 8Precautions ....................................................................... 9Precautions for installation ................................................ 11Major operating controls and their functions .................... 12■ Front view .................................................................... 12■ Inside the front cover................................................... 14■ Rear view ..................................................................... 16● Power cord plug brace.............................................. 16Outline of functions ........................................................... 17■ HDD (Hard disk drive) .................................................. 17● Mega-pixel camera compatibility/Large amountof storage .................................................................. 17● Replacement of the HDD units ................................. 17● HDD management .................................................... 17● HDD fault-tolerance system ...................................... 18■ Recording/Playback .................................................... 18● Stable image recording and playback ...................... 18● Schedules ................................................................. 19● How the event action is taken................................... 19● Major functions ......................................................... 20● Setup menu and its items ......................................... 20■ Network ....................................................................... 20● Remote operation ..................................................... 20● Network security function ......................................... 21● SD memory recording ............................................... 22● Maintenance (Software upgrade) .............................. 22Operations flow ................................................................. 23Install the recorder in a rack .............................................. 24■ Installation procedure .................................................. 24■ Position in the rack ...................................................... 25Connections ...................................................................... 26■ Connection between cameras and PCs...................... 26● 1-port operation ........................................................ 26● 2-port operation ........................................................ 27● Connection example for 1-port operation ................ 28● Connection example for 2-port operation ................ 30● Connecting the extension units ................................ 32About the connectors ........................................................ 33■ How to use the terminals of the ALARM/CONTROLconnector .................................................................... 33● Pin configuration ....................................................... 33● Connection for emergency recording ....................... 34● Connection for external recording switching ............ 34● Connection 1 for the auto adjustment timefunction ..................................................................... 35● Connection 2 for the auto adjustment timefunction ..................................................................... 35● Connection of the control output .............................. 36● Connection with the Uninterruptible Power System(UPS) ......................................................................... 36■ How to use the terminals of the ALARM connector .... 37● Pin configuration ....................................................... 37● Alarm connection ...................................................... 38■ Time and polarities of the ALARM/CONTROLterminal and the ALARM terminal ............................... 39Turn on/off the power of the recorder ............................... 40■ Turn on the power of the recorder ............................... 40■ Turn off the power of the recorder............................... 40● During recording ....................................................... 40● During playback ........................................................ 40Operations using the buttons on the front panel............... 41■ Basic operations.......................................................... 41■ Check the system information .................................... 42■ Check the IP address .................................................. 43■ Set the IP address ....................................................... 44● How to configure the settings for each item ............. 44■ Enable/disable the key lock ........................................ 44■ HDD unit ...................................................................... 45■ Handle the hard disk drives......................................... 46● Install the HDD units ................................................. 47● Install (link) all the HDD units in the extensionunit at the same time ................................................ 48● Remove the HDD units ............................................. 50● Remove all the HDD units in the extensionunit at the same time ................................................ 51● Determine the operational mode .............................. 52■ Data recovery (in the RAID 5/RAID 6 mode)................ 54● Replacement of a faulty hard disk drive in theRAID mode ................................................................ 55■ Reboot ......................................................................... 56Troubleshooting ................................................................. 57Specifications .................................................................... 60Standard accessories ........................................................ 61Index .................................................................................. 62