I.CONTROLS
1. Front Panel
1)POWER 
: Press this button to turn the power on; press again to turn the power off. The POWER LED (red) lights/goes off when the power is on/off.
2)Playback / Record Control : Used to Start and Stop Recording or Playback.
3)Numeric [0~16] : These buttons have a number of functions to enter data and to make selections. They are used to enter numerical data when prompted for the password, to make channel/camera selection, to choose the day in schedule option, and to enter alphabets to label each channel.
4)BACKUP: Press this button to begin making a backup copy of the hard drive. If there is no peripheral recording device connected, this button cannot be used.
5)USB 
: USB compliant port allows use of memory sticks to backup video files or S/W upgrade.
6)LOCK: Press this button to lock all units’ key buttons including the remote controller. The LOCK LED (green) lights/goes off when the lock is on/off. To release press it again and enter the administer password.
7)LOG IN/OUT : Toggles log in and out.
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