User`s manual
Table Of Contents
- Contents
 - Chapter 1 DVR-520 Introduction
 - Chapter 2 Remote DVR Installation
 - Chapter 3 Powering Up the Unit
 - Chapter 4 Operation Guide
 - Appendix A Networking
 - Appendix B PC Viewer
 - Appendix C Video Quality Settings Table
 
xi
General Safety Guidelines
• Keep the area around the DVR series clean and free of clutter.
• To avoid injuries to the back, be sure to use your leg muscles, keep your 
back straight, and bend your knees, when lifting the system.
• Avoid wearing loose clothing to preventing it from coming into contact 
with electrical circuits or being pulled into a cooling fan.
• After removing the components or chassis covers from the system, 
place them on a table for safeguard.
• Be sure to remove any jewelry or metal objects before working on the 
chassis to avoid short circuits should these objects come into contact 
with power circuits.
• After accessing the interior of the chassis, be sure to close the chassis 
with chassis covers and secure the chassis to the racks with screws.
Warning!: Follow these rules to ensure general safety:










