Huawei HG521 User Manual - Page 7

it off, remove all the cables connected to it, and then contact an authorized service center. z During thunderstorms, power off the device, and then remove all the cables connected to it to prevent it from getting damaged due to lightning strikes. Precautions for Using Wireless Devices z The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons. z Do not use the device where using wireless devices is prohibited or may cause interference or danger. z The radio waves generated by the device may interfere with the operation of electronic medical devices. If you are using any electrical medical device, contact its manufacturer for the restrictions on the use of the device. z Do not take the device into operating rooms, intensive care units (ICUs), or coronary care units (CCUs). Areas with Inflammables and Explosives z Do not use the device where inflammables or explosives are stored, for example, in a gas station, oil depot, or chemical plant. Otherwise, explosions or fires may occur. In addition, follow the instructions indicated in text or symbols. z Do not store or transport the device in the same box as inflammable liquids, gases, or explosives. Accessory Requirements z Use only the accessories supplied or authorized by the device manufacturer. Otherwise, the performance of the device may get affected, the warranty for the device or the laws and regulations related to telecommunications terminals may become null and void, or an injury may occur. z Do not use the power adapter if its cable is damaged. Otherwise, electric shocks or fires may occur. z Ensure that the power adapter meets the specifications indicated on the device nameplate. z Ensure that the power adapter meets the requirements of Clause 2.5 in IEC60950-1/EN60950-1 and it is tested and approved according to national or local standards. Safety of Children 2