Huawei MMC255u Quick Start Guide - Page 1

1Warnings and Precautions To use the device properly and safely, read these warnings and precautions carefully and strictly observe them during operation. Note Unless otherwise specified, the device described in this chapter also involves its accessories. Basic Requirements • During storage, transportation, and operation of the device, keep it dry and prevent it from colliding with other objects. • Do not dismantle the device. In case of any fault, contact an authorized service center for assistance or repair. • Without authorization, no organization or individual can change the mechanical, safety, or performance design of the device. • When using the device, observe all applicable laws and regulations and respect the legal rights of other people. Other Requirements Environmental Requirements for Using the Device • Before connecting and disconnecting cables, stop using the device, and then disconnect the device from the power supply. Ensure that your hands are dry during operation. • Keep the device far from sources of heat and fire, such as a heater or a candle. • Keep the device far from electronic appliances that generate strong magnetic or electric fields, such as a microwave oven or a refrigerator. 1 Warnings and Precautions • Place the device on a stable surface. • Place the device in a cool and well-ventilated indoor area. Do not expose the device to direct sunlight. Use the device in an area with a temperature ranging from 0ºC to 40ºC. • Do not block the openings on the device with any object. Reserve a minimum space of 10 cm around the device for heat dissipation. • Do not place any object (such as a candle or a water container) on the device. If any foreign object or liquid enters the device, stop using the device immediately, power it off, remove all the cables connected to it, and then contact an authorized service center. • 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 • When using the device, ensure that the antenna of the device is at least 20cm from all parts of your body. • Do not use the device where using wireless devices is prohibited or may cause interference or danger. • 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. • Do not take the device into operating rooms, intensive care units (ICUs), or coronary care units (CCUs). 1