2.1 Before Installation2.1.1 Before InstallationPlease read the following notes concerning installation and connection before installing the PBX and terminalequipment.Be sure to comply with all applicable laws, regulations, and guidelines.Safety Installation InstructionsWARNINGWhen installing telephone wiring, basic safety precautions should always be followed to reducethe risk of fire, electric shock and injury to persons, including the following:• Never install telephone wiring during a lightning storm.• Never install telephone jacks in wet locations unless the jack is specifically designed for wetlocations.• Never touch uninsulated telephone wires or terminals unless the telephone line has beendisconnected at the network interface.• Use caution when installing or modifying telephone lines.Installation PrecautionsThis set is made for wall mounting and should be installed in a location where it is accessible for inspectionsand maintenance.To prevent malfunction, noise, or discolouration, follow the instructions below:WARNINGDo not install the system in the following locations:• Areas where shocks or vibrations are frequent or strong. Such activity may lead to the productfalling over and causing injury, or may impair the product’s performance.• Areas with high amounts of dust. High amounts of dust can lead to fire or electric shock, andimpair the performance of the product.CAUTIONDo not install the system in the following locations:• In direct sunlight and hot, cold, or humid places. (Temperature range: 0 °C to 40 °C)• Areas where sulfuric gases may be present, such as near thermal springs.• Near devices that generate high frequencies, such as sewing machines or electric welders.• Locations where other objects will obstruct the area around the PBX. Be especially careful to leave atleast 20 cm of space above and 10 cm to the sides of the PBX for ventilation.NoticeDo not install the system in the following locations:• On or near computers, telexes, or other office equipment, as well as microwave ovens or airconditioners. (It is preferable not to install the system in the same room as the above equipment.)• Within 1.8 m of radios and televisions. (Both the PBX and PTs should be at least 1.8 m away from suchdevices.)Do not perform the following:• Do not block the openings of the PBX.• Do not stack up the optional service cards.30 Installation Manual2.1.1 Before Installation