Huawei B681 User Manual

1
B681 Quick Start
Note:
 Figures in this guide are only for your reference. For details about the
particular model you have chosen, contact your service provider.
 Check the information about the product and its accessories when you
purchase it. Some accessories are not provided in the product package. If
necessary, contact your local dealer to purchase them.
 This guide briefly describes the device functions. For details about how to
set the management parameters, see the help information on the web
management page.
1 Getting to Know Your Device
Application Scenarios
Scenario 1:
You can connect your computer to the device to access the Internet. The specific
connection steps depend on your computer's operating system. Follow the
displayed instructions to connect the device to your computer.
Scenario 2:
You can connect a telephone to the device's telephone port to make voice calls.

Huawei B681 Specifications

General

Model	Huawei B681
Voice Ports	1 x RJ11
Network Standards	GSM
Data Link Protocol	IEEE 802.11b/g
Frequency Bands	UMTS 900/2100 MHz, GSM 850/900/1800/1900 MHz
Max Download Speed	7.2 Mbps
Max Upload Speed	5.76 Mbps
Wi-Fi	802.11b/g/n
LAN Ports	1
USB Ports	1

Summary

Getting to Know Your Device

Application Scenarios

Describes how to connect computers and telephones to the device for internet and voice calls.

Device Appearance and Indicators

Indicator Status Explanations

Explains the status and meaning of various device indicators like Wi-Fi, Network, and Power.

Device Installation

SIM Card Installation

Step-by-step guide for inserting the SIM card into the device.

Table Stand Setup

Instructions on how to attach and use the table stand for upright placement.

External Antenna Installation

Guide for connecting an external antenna for better network coverage.

Telephone Connection

Steps to connect a telephone for making voice calls.

Computer Connectivity

Instructions on how to connect a computer to the device using an Ethernet cable.

Power Connection

Guide on connecting the device to a power source using the adapter.

Powering the Device On or Off

Setting Up Wireless Connection

Wi-Fi Enablement

How to manually turn the device's Wi-Fi feature on or off.

Wi-Fi Connection Methods

Describes two methods for setting up a Wi-Fi connection: standard and WPS.

Web Management Page Usage

Accessing the Management Interface

Steps to launch a web browser and log in to manage device settings.

Internet Access

Internet Connection Modes

Explains different modes (Auto, Manual, On Demand) for connecting to the internet.

Factory Default Restoration

Factory Reset Procedure

Instructions on how to reset the device to its original factory settings.

Troubleshooting and Support Tips

General Troubleshooting Advice

Provides tips for troubleshooting, restarting, and contacting support.

Safety Information

General Electronic Device Safety

General safety guidelines for using electronic devices, including medical and explosive environments.

Traffic and Aircraft Safety

Safety precautions for using the device while driving or on an aircraft.

Operating Environment and Care

Guidelines for device placement, operating temperature, cleaning, and maintenance.

Child Safety and Accessories

Precautions regarding children's safety and the use of approved accessories.

Device Handling and Cleaning

Instructions on proper handling, cleaning, and avoiding damage to the device and charger.