Important safety information8Important safety informationExplanation of symbolsThe following symbols are used in this manual and on thedevice:Symbol Signal word MeaningWarning Indicates a risk of injury orhealth hazards.Warning Indicates a risk of injury orhealth hazards caused by elec-trical voltage.Important Indicates possible damage tothe device/accessories.Note Indicates important information.The following labels are used in the text:Meaning1. …2. …Set of tasks or instructions with a definedsequence in the text• …• …Set of points or warnings without a definedsequence in the textProper useOnly use the device for the purpose which it was de-signed and built for. Any other use is considered inap-propriate.This device may only be used for the following pur-pose(s):• This 4-channel video storage is used in combinationwith connected video signal sources (IP cameras) forobject surveillance.NoteData storage is subject to national data-protectionguidelines.During installation, inform your customers regard-ing the existence of these guidelines.General informationBefore using the device for the first time, read the follow-ing instructions carefully and pay attention to all warn-ings, even if you are already familiar with electronicdevices.WarningAll guarantee claims become invalid for damagescaused by non-compliance with these operatinginstructions.We cannot be held liable for resulting damages.WarningWe cannot be held liable in the event of materialor personal damage caused by improper opera-tion or non-compliance with the safety information.All guarantee claims are invalid in such cases.Keep this manual in a safe place for future reference.If you pass on or sell the device, you must also includethis user manual.This device has been manufactured in accordance withinternational safety standards.Power supply• Only operate this device through a power sourcewhich supplies the mains power specified on the typeplate.• If you are unsure of the power supply at the installa-tion location, contact your power supply company.WarningAvoid data loss!Always use an uninterruptible power supply (UPS)with overvoltage protection.• Disconnect the device from the mains power supplybefore carrying out maintenance or installation work.• To disconnect the device completely from the mainspower supply, the plug must be disconnected fromthe mains socket. Therefore, the device should bepositioned so that direct and unobstructed access tothe mains socket is guaranteed at all times and theplug can be disconnected immediately in an emer-gency.• To avoid the possibility of fires, the plug should al-ways be disconnected from the network socket if thedevice is not used for long periods. Disconnect thedevice from the mains power supply before impend-ing electrical storms, or use an uninterruptible powersupply.