DV 3 SERIES DVR12DIGITAL VIDEO RECORDER LAYOUT1. FRONT PANEL LAYOUT1. POWER BUTTONThis button turns the unit on or off.2. RECORDThis button starts recording.3. STOPThis button stops recording.4. PLAYThis button is used to start the playback of recorded data.5. NUMERIC BUTTONS (1~16, 10/0)These buttons have a number of functions to enter data and to make selections. They are used to enternumerical data when prompted for the password, to make channel/camera selection, to choose the day inschedule option, and to enter alphabets to label each channel.6. BACKUPThis button allows backing up onto a blank CD, blank DVD, or external hard drive and memory stick.7. USB 2.0 PORTThe USB port is to connect external backup devices such as CD-RW, DVD-RW, external hard disk driveand flash memory stick.8. CD-ROM or DVD-ROM TRAYThe tray to insert the blank media for backup or recorded media for playback.9. READ / WRITE STATUS INDICATORThis LED lights up whenever the media inserted is accessed or written to.10. EJECT / CLOSEThis button opens and closes the CD-ROM or DVD-ROM tray.