©2001 Nokia Mobile Phones. All rights reserved. 22Important safety information8. Important safety informationThe Nokia 20 GSM Connectivity Terminal power supply ACW-3 converts line voltage of 110V/220V/230V ACto low voltage DC.Note: The power supply socket should be easily accessible and it must not be covered. The power supply isinsulation class 2 covered.WARNING! Dangerous voltage. Do not attempt to open the casing.Note! This power supply is for indoor use only! Do not expose the unit to water, rain or dust.The power supply should be disconnected from the socket when the terminal is not in use for a prolongedperiod of time or when the power supply is not connected to the terminal.When you disconnect the power cord of the power supply, grasp and pull the plug, not the cord.IMPORTANT! Use only the power supply approved by Nokia. The use of any other types will invalidate anyapproval or warranty applying to the terminal, and may be dangerous.Operating environmentRemember to follow any special regulations in force in any area and always switch off the terminalwhenever it is forbidden to use it, or when it may cause interference or danger.The Nokia 20 GSM Connectivity Terminal is switched on when the power supply is connected to the terminaland to an AC outlet. Do not connect the power supply whenever it is forbidden to use a wireless phone, orwhen it may cause interference or danger.When connecting the terminal or any accessory to another device, read its user’s guide for detailed safetyinstructions. Do not connect incompatible products.Do not cover the terminal.