3PrefaceThis unit (WJ-GXD400) is an IP-network-ready decoder.This unit receives video and audio data through the IP network and provides the data to external devices such asmonitors and speakers.Images from up to 6 cameras can be simultaneously displayed with this unit. For major functions, refer to theInstallation Guide.Refer to "Readme.txt" on the provided CD-ROM for supported devices.About the User ManualsThere are 2 sets of operating instructions for the WJ-GXD400 as follows.• Installation Guide: Explains how to install and connect devices.• Setup Instructions (PDF): Explains how to perform the settings of this unit using a PC via a network.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 siteand install it."GXD400" shown in the illustrations used in these operating instructions indicate this unit or the WJ-GXD400.Refer to "Readme.txt" on the provided CD-ROM for further information including the dedicated software, its version,and compatible cameras.System Requirements for a PCIt is recommended to perform the settings of this unit using a PC that meets the following system requirements.OS: Microsoft® Windows Vista ® 32-bitMicrosoft® Windows ® XP Professional SP2*Microsoft® Windows ® XP Home Edition SP2*CPU: Pentium® 4 3.0 GHz or fasterMemory: 1 GB or more (A minimum of 512 MB memory is required when using Microsoft® Windows ®XP.)Monitor: Resolution: 1 024 x 768 pixels or moreColor: 24-bit True color or betterNetwork interface: A 100/1 000 Mbps network interface card must be installed.Web browser: Windows® Internet Explorer® 7.0Microsoft® Internet Explorer® 6.0 SP2*Other: It is necessary to read the operating instructions and use the software on the provided CD-ROM.Adobe ® Reader®: It is necessary to read the operating instructions on the provided CD-ROM.* Microsoft® Internet Explorer® 6.0 SP2 is required when using Microsoft® Windows ® XP Home Edition SP2 orMicrosoft® Windows ® XP Professional SP2.