5.Connect the end of the IDE cable and the power connector to the hard disk
7. Push the cover forward
6.Secure the hard disk inside the unit then replace unit cover
8.Secure the cover
9.You may now connect all the cables. When the power is connected, the Power
LED light 
turns on
1.5.2 Connecting Devices
The back panel of the DVR unit, user can connect up to 4 video cameras, 4 sensor devices, 1 alarm device and output video to a TV or CRT/LCD monitor. Connecting the unit to a pen drive or external hard disk through USB connection for backup, then use the bundled software enables user to transfer, playback and segment the video. Follow the illustration below to make the connection:
5