Spectrum22• Safety symbols (English)• Symboles de sécurité (français)• Sicherheit symbole (Deutsch)Safety symbols & translated safety, warning & caution instructions(English)To avoid personal injury or property damage, before you begin installing or replacing the product, read,observe, and adhere to all the following safety instructions and information. Harmonic products and/orproduct packaging may be marked with the safety symbols used throughout this document, when it isnecessary to alert operators, users, and service providers to pertinent safety instructions in the manuals.Mark NotesWarningInstalling or replacing the product unit warning• Only trained and qualified service personnel should be allowed to install,replace, or service this unit (refer AS/NZS 3260 Clause 1.2.14.3 ServicePersonnel).• Read the installation instructions before connecting the system to the powersource.• When installing or replacing the unit, always make the ground connectionfirst and disconnect it last.• Installation of the unit must comply with local and national electrical codes.• This unit is intended for installation in restricted access areas. A restrictedaccess area can be accessed only through the use of special tool, lock andkey or other means of security.• Use only specified replacement parts.• Do not use this unit in or near water. Disconnect all AC power beforeinstalling any options or servicing the unit unless instructed to do so by thismanual.WarningRack mount warningTo prevent bodily injury when mounting or servicing this unit in a rack, specialprecautions must be taken to ensure your safety and stability of system:• Conform to local occupational health and safety requirements when movingand lifting the equipment.• Ensure that mounting of the unit by mechanical loading tools should notinduce hazardous conditions.• To avoid risk of potential electric shock, a proper safety ground must beimplemented for the rack and each piece of equipment installed on it.