Huawei B681 quick start Safety Information, Electronic Device, Medical Device, Traffic Security

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9 Safety Information

This section contains important information pertaining to the operating instructions of your device. It also contains information about how to use the device safely. Read this information carefully before using your device.

Electronic Device

Do not use your device if using your device is prohibited. Do not use the device when using your device causes danger or interference with electronic devices.

Medical Device

Follow rules and regulations set forth by hospitals and health care facilities. Do not use your device when using the device is prohibited.

Some wireless devices may affect the performance of hearing aids or pacemakers. For any such problems, consult your service provider.

If you are using an electronic medical device, consult the doctor or the device manufacturer to confirm whether radio waves affect the operation of this device.

Potentially Explosive Atmosphere

Do not use your device in any area with a potentially explosive atmosphere, and comply with all signs and instructions. Areas that may have potentially explosive atmospheres include the areas where you would normally be advised to turn off your vehicle engine. Triggering of sparks in such areas could cause an explosion or a fire, resulting in bodily injuries or even deaths. Do not use your device at refueling points such as service stations. Comply with restrictions on the use of radio equipment in fuel depots, storage, and distribution areas, and chemical plants. In addition, adhere to restrictions in areas where blasting operations are in progress. Before using the device, watch out for areas that have potentially explosive atmospheres that are often, but not always, clearly marked. Such locations include areas below the deck on boats, chemical transfer or storage facilities, and areas where the air contains chemicals or particles such as grain, dust, or metal powders. Ask the manufacturers of vehicles using liquefied petroleum gas (such as propane or butane) whether this device can be safely used in their vicinity.

Traffic Security

Observe local laws and regulations while using the device. To prevent accidents, do not use your wireless device while driving.

RF signals may affect electronic systems of motor vehicles. For more information, consult the vehicle manufacturer.

In a motor vehicle, do not place the device over the air bag or in the air bag deployment area. Otherwise, the device may hurt you owing to the strong force when the air bag inflates.

Do not use your device while flying in an aircraft and before boarding an aircraft. Using wireless devices in an aircraft may cause danger to the operation of the

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Contents Getting to Know Your Device Application ScenariosScenario Indicators Indicator StatusAppearance Installation Installing the SIM CardOptional Using the Table Stand Optional Connecting to a Telephone Optional Installing an External AntennaPowering the Device On or Off Connecting to a ComputerConnecting to a Power Outlet Turning the Devices Wi-Fi On Setting Up a Wireless ConnectionSetting Up a Wi-Fi Connection Method 1 Set up a Wi-Fi connection StepUsing the Web Management Accessing the InternetMode Description Further Tips Restoring Factory DefaultsElectronic Device Safety InformationMedical Device Potentially Explosive AtmosphereAccessories Safety of ChildrenCleaning and Maintenance Operating EnvironmentPage Import and Export Regulations Trademarks and Permissions

B681 specifications

The Huawei B681 is a robust and versatile mobile broadband router designed for seamless internet connectivity, especially in areas where wired connections may be limited. Known for its reliability and performance, the B681 is ideal for personal and small business use, providing users with the capability to connect multiple devices simultaneously.

One of the standout features of the Huawei B681 is its support for 3G network connectivity. It is capable of receiving and transmitting data over HSPA+/HSPA/UMTS networks, ensuring users can enjoy high-speed internet access. With download speeds reaching up to 21.6 Mbps and upload speeds up to 5.76 Mbps, the B681 facilitates smooth streaming, efficient browsing, and stable communications.

The design of the B681 is both sleek and functional, featuring a compact form factor that allows for easy placement in any environment. Its user-friendly interface includes LED indicators for monitoring the status of power, wireless, and network connectivity, making it simple to manage and troubleshoot any connectivity issues.

Equipped with a built-in Wi-Fi access point, the Huawei B681 supports wireless connections for up to 32 devices. This makes it an excellent choice for households or small businesses with multiple users or devices needing internet access. The wireless standard supported is IEEE 802.11b/g, which ensures compatibility with most Wi-Fi-enabled devices, from laptops to smartphones.

The B681 also features advanced security protocols, including WPA/WPA2 encryption, ensuring that user data remains safe from potential threats. The router can be easily configured through its web-based management interface, allowing users to customize settings, manage connected devices, and monitor data usage effectively.

In terms of connectivity options, the Huawei B681 is equipped with Ethernet ports for wired connections, providing flexibility for devices that may require a more stable connection. The WAN/LAN port can also be used to connect to another network, acting as a bridge.

Overall, the Huawei B681 stands out as a reliable mobile broadband solution engineered to deliver high-speed internet access with ease of use and impressive connectivity options. Its blend of advanced technology, security features, and user-friendly design makes it a popular choice for users seeking a dependable mobile router.
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