4Security Function and Reliability• User authentication function (registration of ID and password) allows users access to predetermined selection ofthe available functions. Up to 32 users can be registered.• Host authentication function restricts devices from operating this unit if their IP addresses are not registered.• If a hard disk crashes, the mirroring function prevents any recorded pictures loss by continuing recording on theanother hard disk. (when using 2 hard disks)About these operating instructionsThere are 3 sets of operating instructions for the WJ-ND200 as follows.• Installation Guide (book)• Operating Instructions (PDF)• Setup Instructions (PDF, these operating instructions)These "Setup Instructions" contain descriptions of how to perform the required settings to operate this unit using aPC via a network and descriptions for installations such as how to connect the unit to other devices.The network settings of the unit will be different depending on the settings of the LAN or the Internet service providerto which the unit is to be connected. Refer to an administrator of each network for further information about therespective network.Refer to the "Installation Guide" for descriptions about available functions by operating this unit using the buttons onthe front panel.Refer to the "Operating Instructions" on the provided CD-ROM for descriptions of how to operate this unit from a PC.Adobe ® Reader is required to read these operating instructions (PDF) on the provided CD-ROM. When the Adobe®Reader is not installed on the PC, download the latest Adobe® Reader from the Adobe web site and install it."ND200" shown in the illustrations used in these operating instructions indicate this unit or the WJ-ND200.Refer to "Readme.txt" on the provided CD-ROM about supported versions of dedicated software, etc.System requirements for a PCIt is recommended to operate this unit using a PC that meets the following system requirements. If using a PC thatdoes not meet the following system requirements, it may cause problems such as slow imaging or the browserbecomes inoperable.OS Microsoft ® Windows Vista ® 32-bitMicrosoft® Windows ® XP Professional SP2Microsoft® Windows ® XP Home Edition SP2OS Language English, French, Spanish, German, Italian, RussianCPU Pentium ® 4 3.0 GHz or fasterMemory 1 GB or more (512 MB or more for Windows XP)Monitor 1 024 x 768 pixels or more, 24-bit True color or betterAudio Sound card (When using the audio function)Network Interface 10/100 Mbps Network interface card must be installedWeb Browser Windows® Internet Explorer® 7.0Microsoft® Internet Explorer® 6.0 SP1, 6.0 SP2Other web browsers are not compatible with this unit.Other CD-ROM Drive: It is necessary to read the operating instructions and use the software onthe provided CD-ROM.DirectX® 9.0c or laterAdobe ® Reader®: It is necessary to read the operating instructions on the provided CD-ROM.