4Security Function and Reliability• User authentication function (registration of user name and password) allows users access to predeterminedselection of the 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.About these Operating InstructionsThere are 3 sets of operating instructions for the WJ-ND200 as follows.• Installation Guide (book)• Operating Instructions (PDF, these operating instructions)• Setup Instructions (PDF)These "Operating Instructions" contain descriptions of how to operate this unit using a PC via a network.Refer to the "Setup Instructions (PDF)" for descriptions of how to perform the required settings to operate this unitusing a PC and how to connect to other devices. (The setup instructions are for system installers.)The settings of the unit will be different depending on the settings of the LAN or the Internet service provider to whichthe unit is to be connected. Refer to an administrator of each network for further information about the respectivenetwork.Refer to the provided "Installation Guide (book)" for descriptions of how to operate this unit using the buttons on thefront panel of the unit, installation and system configurations.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.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 ® 2000 Professional SP4*Microsoft® Windows ® XP Professional SP2Microsoft® Windows ® XP Home Edition SP2CPU Pentium® 4 3.0 GHz or fasterMemory 512 MB or moreMonitor 1 024 x 768 pixels or more, 24-bit True color or betterNetwork Interface 10/100 Mbps Network interface card must be installedWeb Browser Microsoft® 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.