HIKVISION DS-8004HCI-S User Manual page 66

Note: A message will display indicating "Power Off in Process." Do not press any additional keys
while the shutdown is taking place.
Abnormal Shutdown:
Warning: Do not power off the unit by switching off the power supply power switch or by
pulling the power plug!
Removing the power unexpectedly while the DVR is accessing the disk drives will cause damage
to the data and possibly to the drive.
Note: Maintaining constant regulated power to the DVR is essential for normal operation and to
preserve the data stored on the disk drives. A UPS (Uninterruptible Power Supply) is
recommended for all installations and essential in mission critical applications.
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