2.1 Before Installation2-2 InstallationPlease read the following notes concerning installation andconnection before installing the system and terminal equipment.Safety Installation InstructionsWhen installing telephone wiring, basic safety precautions shouldalways be followed to reduce the risk of fire, electric shock andinjury to persons, including the following:1. Never install telephone wiring during a lightning storm.2. Never install telephone jacks in wet locations unless the jack isspecifically designed for wet locations.3. Never touch uninsulated telephone wires or terminals unless thetelephone line has been disconnected at the network interface.4. Use caution when installing or modifying telephone lines.Installation Precautions This system is designed for wall mounting only. Avoid installing inthe following places. (Doing so may result in malfunction, noise, ordiscoloration.)1. In direct sunlight and hot, cold, or humid places. (Temperaturerange: 0 °C – 40 °C {32 °F – 104 °F})2. Sulfuric gases produced in areas where there are thermalsprings, etc. may damage the equipment or contacts.3. Places in which shocks or vibrations are frequent or strong.4. Dusty places, or places where water or oil may come intocontact with the system.5. Near high-frequency generating devices such as sewingmachines or electric welders.6. On or near computers, telexes, or other office equipment, aswell as microwave ovens or air conditioners. (It is preferablenot to install the system in the same room with the aboveequipment.)7. Install at least 1.8 m {6 feet} away from radios and televisions.(Both the system and Panasonic proprietary telephones)8. Do not obstruct area around the system (for reasons ofmaintenance and inspection — be especially careful to allowspace for cooling above and at the sides of the system).Wiring Precautions Be sure to follow these instructions when wiring the unit:1. Do not wire the telephone cable in parallel with an AC powersource, computer, telex, etc. If the cables are run near thosewires, shield the cables with metal tubing or use shielded cablesand ground the shields.