Conventions Used in This DocumentExpress5800/R120g-2E User's Guide6Conventions Used in This DocumentSigns and symbols for safetyWARNING and CAUTION are used in this guide as following meaning.W ARNING Indicates there is a risk of death or serious personal injuryCAUTION Indicates there is a risk of burns, other personal injury, or property damagePrecautions and notices against hazards are presented with one of the following three symbols. The individualsymbols are defined as follows:Attention This symbol indicates the presence of a hazard ifthe instruction is ignored.An image in the symbol illustrates the hazard type.ProhibitedActionThis symbol indicates prohibited actions. An imagein the symbol illustrates a particular prohibitedaction.MandatoryActionThis symbol indicates mandatory actions. Animage in the symbol illustrates a mandatory actionto avoid a particular hazard.(Example in this guide)W ARNINGUse only the specified outletUse a grounded outlet with the specified voltage. Use of an improper power sourcemay cause a fire or a power leak.(Do not disassemble)(Electric shock risk)(Example)(Example)(Example)(Disconnect a plug)Symbol to drawattentionDescription of a warning Term indicating a degree of danger