1.2 Important Safety InstructionsWhen using your telephone equipment, basic safety precautions should always be followed to reduce therisk of fire, electric shock and injury to persons, including the following:• Do not use the unit near water, for example, near a bathtub, wash bowl, kitchen sink, or laundry tub, in awet basement, or near a swimming pool.• Avoid using wired telephones during an electrical storm. There is a remote risk of electric shock fromlightning.• Do not use a telephone in the vicinity of a gas leak to report the leak.• Rack Mount Instructions—The following or similar rack-mount instructions are included with theinstallation instructions:a. Elevated Operating Ambient—If installed in a closed or multi-unit rack assembly, the operatingambient temperature of the rack environment may be greater than room ambient. Therefore,consideration should be given to installing the equipment in an environment compatible with themaximum ambient temperature (Tma) specified by the manufacturer.b. Reliable Earthing—Reliable earthing of rack-mounted equipment should be maintained. Particularattention should be given to supply connections other than direct connections to the branch circuit(e.g., use of power strips).SAVE THESE INSTRUCTIONS1.2 Important Safety InstructionsInstallation Manual 13