7PrefaceFeaturesThe network disk recorders WJ-NV300K and WJ-NV300K/G (hereinafter, recorders) are designed for use within a surveillancesystem, and record images/audio from up to 32 network cameras (hereinafter, cameras) on the hard disk drives. Number ofcameras to be used in the system (9 cameras in basic system) can be increased to 16, 24 and 32 (maximum) by purchasing theAdditional Camera Kit (WJ-NVE30, WJ-NVE30W).Model No. HDD slot(s) Number of initial CHs/Maximum number of CHs RAID functionWJ-NV300K 2 16CH/32CH Available (*)WJ-NV300K/G 2 9CH/32CH Available (*)(*) RAID5 or RAID6 mode is available when the Extension Unit (WJ-HDE400) is connected.(When the Extension Unit is connected, the HDD of the recorder is disabled.)If the Extension Unit is not connected, the mirroring mode can be used with two HDDs of the recorder.(But the HDD of the Extension Unit is not available for the mirroring mode.)This recorder supports connection with a monitor equipped with the HDMI (High-Definition Multimedia Interface) connector.Connection using an HDMI cable (optional) offers display of playback/live images with superior quality.It is possible to operate cameras from this recorder to display images from multiple cameras or switch cameras from whichimages are to be displayed, etc.The optional parts described in this installation guide are based on information as of May, 2014. Contact your dealer for furtherinformation.High-definition image monitoring is availableImages from up to 32 cameras with the image capture size of Full HD (1920 x 1080) can be saved as video data. Recording ofimages with the image capture size of QXGA (2048 x 1536) and of images with the frame rate of 60fps are also available. Thisrecorder also supports the HDMI output to 2 monitors that can display recorded images and live images from the cameras inhigh definition.Quick setup and operationsBy connecting the mouse (accessory) to this recorder, quick operations are available while viewing a monitor.By using "Easy Start", the cameras are automatically recognized without operations from the PC.Recorded images can easily be searched using calender or time line.Real-time face matching function (option)By matching registered face images with a face displayed on live images in real time and by notifying the matching result, it willbe possible to check guests or discover suspicious people. That can be an aid to crime prevention.HDD extension unitBy connecting 2 extension units (WJ-HDE400), operation using up to 20 hard disk drives in the single mode, up to 18 hard diskdrives in the RAID5 or RAID6 mode will become available.SDHC/SD memory card slot and the copy port equippedIt is possible to copy images recorded onto a SDHC/SD memory card (optional) or onto a commercially available external harddisk drive/USB memory. The copied images can be played, printed or saved using the dedicated viewer software.(Recommended SDHC/SD memory card ☞ page 46)