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
 
DVR-520 User’s Manual 2
Chapter 1 DVR-520 Introduction
The DVR-520 digital video recorder (DVR) is for recording/retrieving 
video streams from up to 4 channels at the same time. It adopts a digital 
image compression technology to compress the input channel video 
streams, and uses a HDD to record the compressed video stream.
This user manual explains how to install, operate, and manage the DVR 
in your home.
Hope you enjoy it and find it useful to protect your home or office.










