For Your SafetyTo reduce the risk of injury, loss of life, electric shock,fire, malfunction, and damage to equipment or property,always observe the following safety precautions.Explanation of symbolsThe following symbols are used to classify and describethe level of hazard and injury caused when thedenotation is disregarded and improper use isperformed.WARNINGDenotes a potential hazard that could result inserious injury or death.CAUTIONDenotes a hazard that could result in minorinjury or damage to the unit or other equipment.The following symbols are used to classify and describethe type of instructions to be observed.This symbol is used to alert users to a specificoperating procedure that must not beperformed.This symbol is used to alert users to a specificoperating procedure that must be followed inorder to operate the unit safely.WARNINGGeneral SafetyDo not disassemble this unit. Only qualifiedpersonnel should service this unit.Disassembling the unit may expose you todangerous voltages or other risks. Incorrectreassembly can cause electric shock.Do not insert foreign objects into the unit.Do not connect or disconnect the AC plug withwet hands.Disconnect the unit from the AC outlet,disconnect the LAN cable, and contact thedealer if:– The AC adaptor cord or AC plug becomesdamaged or frayed.– The unit is exposed to rain, water, or anyother liquid.– The unit is dropped or damaged.– Internal components are exposed due todamage.– The unit does not operate properly.– Performance deteriorates.Disconnect the unit from the AC outlet anddisconnect the LAN cable if the unit emitssmoke, an abnormal smell, or makes unusualnoise. These conditions can cause fire orelectric shock. Confirm that smoke hasstopped and contact an authorized servicecenter.Clean the AC plug periodically with a soft, drycloth to remove dust and other debris.InstallationDo not connect the unit to the AC outlet, ACextension cords, etc., in a way that exceedsthe power rating of, or does not comply withthe instructions provided with, the AC outlet,AC extension cords, etc.Do not touch the unit, AC adaptor, AC adaptorcord, or telephone cord during a lightningstorm.Do not install telephone jacks in wet locationsunless the jack is specifically designed for wetlocations.Document Version 2011/06 Operating Instructions 11Introduction