5Introduction (continued)About Additional Camera Kit (option)Number of cameras to be used in the system (64 cameras in basic system) can be increased to 96 and 128 (maximum) bypurchasing the Additional Camera Kit (WJ-NXE40, WJ-NXE40W: option). Refer to following table regarding camera numbers.Additional Camera KitWJ-NXE40, WJ-NXE40W(license for 32 cameras)NX400 only(No additional license)one Additional Camera Kit(one additional license)two Additional Camera Kit(two additional licenses)up to 64 cameras up to 96 cameras up to 128 camerasImportant:• The following functions are not available when registering the additional camera kit license.∙ Display of the camera image on the main and the sub monitors connected to the recorder* Camera images will be displayed on the web browser of the personal computer (hereinafter, PC), but not on the main orsub monitor.∙ Display, search, playback and copy of the recorded image on the main monitor connected to the recorder∙ Sub-stream recording∙ Re-encoding transmission∙ A part of setup menu operation* The main monitor displays not a camera image but a special menu. The sub monitors turn black.About HDD UnitTo install a hard disk drive in the recorder, it is necessary to assemble an HDD unit (encase the hard disk drive in the HDD canis-ter). The HDD unit is designed to easily install/remove the hard disk drive in/from the recorder. Contact your dealer about pur-chasing, installing, and replacing the hard disk drives.This product is designed to be used indoors.Panasonic assumes no responsibility for injuries orproperty damage resulting from failures arising out ofimproper installation or operation inconsistent withthis documentation.Do not place this product in the following places:• Locations exposed to direct sunlight• Locations subject to having strong vibration or impact• Locations near magnetic field sources such as a televi-sion or speakers• Locations near the devices that emit large sound andgenerate vibration by sound pressurePrecautions for installationRegistering a license of a secure communication kit (option) to the recorder enables secure communication with cameras. Eachsecure communication kit differs in the number of cameras that can be registered as shown in the table below. Use severallicenses as necessary.WJ-NXS01, WJ-NXS01W WJ-NXS04, WJ-NXS04W WJ-NXS16, WJ-NXS16W WJ-NXS32, WJ-NXS32W1 camera 4 cameras 16 cameras 32 camerasAbout Secure Communication Kit (option)