Huawei B681-54 Manual de usuario

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.

Appearance

1. Power button

2. Wi-Fi/WPS button

3. Wi-Fi/WPS indicator

4. Network status indicator

5. Power indicator

6. LAN indicators

7. External antenna port

8. Telephone port

9. Power port

10. LAN ports

Indicators

Indicator Status

Wi-Fi/WPS indicator

Steady on: Wi-Fi turned on or data transfer

in progress.

Blinking: WPS connection being set up.

Off: Wi-Fi turned off.

Network status indicator

Blinking red fast: Subscriber Identity Module

(SIM) card unavailable (SIM card not

installed or malfunctioning, or PIN code not

verified).

Steady yellow: device registered with the

network.

Steady green: device connected to the

Internet.

Off: no signal received.

Power indicator

Steady on: device powered on.

Off: device powered off.

LAN indicators

Steady on: Ethernet cable connected.

Blinking: data transfer in progress.

Off: Ethernet cable not connected.

2 Installation

Installing the SIM Card

Step 1 Slide the card cover off.

Step 2 Insert the SIM card into the card slot. Ensure that the gold contact area

faces down and that the beveled edge of the SIM card aligns with that of

the card slot.

Step 3 Slide the card cover back onto the device.

Attention:

Before removing the SIM card, ensure that the device is powered off and

disconnected from the power outlet.

(Optional) Using the Table Stand

You can place the device on a flat surface such as a table or a desk, or hang it on

a wall. You can also use the table stand on the device to place it upright.

To use the table stand, insert its latches into the device's table stand slots, as

shown in the following figure.

Note:

To ensure good signal reception, place the device in a high place or near a

window.

To prevent interference caused by radio signals, place the device at least 1

meter (3.28 feet) away from other electrical devices.

(Optional) Installing an External Antenna

In areas with poor network coverage, connect an external antenna to the device's

external antenna port. Screw the external antenna in fully, as shown in the

following figure.

Note:

Skip this section if you do not need to connect an external antenna to the

device.

Before using an external antenna, log in to the web management page

(http://192.168.1.1) and set antenna mode to external. For details, see the

help information on the web management page.

Only use the external antenna indoors.

You cannot switch between the internal antenna and the external antenna

while using a voice or data service.

(Optional) Connecting to a Telephone

If you want to use the device to make voice calls, connect the device to a

telephone, as shown in the following figure.

Note:

Skip this section if you do not plan to use the device's voice services.

Radio signals can interfere with telephone call connection and quality. To

eliminate the risk of possible interference, place the telephone at least 1

meter (3.28 feet) away from the device.

Do not connect the device to the telephone wall outlet (or any Public

Switched Telephone Network), which will cause excessive heat or even

damage the device.

Connecting to a Computer

Use an Ethernet cable to connect a computer to one of the device's LAN ports, as

shown in the following figure.

When the connection between the device and the computer is set up, the device's

corresponding LAN indicator turns on.

Ensure that the Ethernet cable is no longer than 100 meters (328 feet).

Connecting to a Power Outlet

Connect a compatible power adapter to the device's power port, and then plug the

power adapter into a power outlet.

Note:

Using an incompatible power adapter may damage the device.

3 Powering the Device On or Off

After connecting to a power outlet, the device will power on automatically.

To manually power the device off, press and hold until all indicators turn

off.

To manually power the device on, press and hold until all indicators turn

on.

4 Setting Up a Wireless Connection

Turning the Device's Wi-Fi On

By default, the device's Wi-Fi automatically turns on when the device is powered

on.

To manually turn Wi-Fi off, press and hold for 2 seconds, and then

release your finger. turns off.

To manually turn Wi-Fi on, press and hold until turns steady on.

Setting Up a Wi-Fi Connection

Note:

Before setting up a Wi-Fi connection, ensure that a wireless network adapter

has been installed on your computer. If the wireless network adapter is

functioning correctly, you will be able to find a wireless network connection in

your computer's connection manager application.

Method 1: Set up a Wi-Fi connection.

Step 1 Ensure that is steady on.

Step 2 Scan for available wireless network connections using your computer's

connection manager application.

Step 3 Connect to the wireless network that has the same service set

identification (SSID) as the device.

Note:

If a security mechanism has been enabled for the wireless network

connection, enter the correct Wi-Fi key.

The SSID and the Wi-Fi key are printed on the device label.

To protect your wireless network from unauthorized access, change the

SSID and Wi-Fi key a regular intervals. For details, see the help information

on the web management page.

Method 2: Set up a WPS connection.

If the client to which your device connects supports WPS, a Wi-Fi key is generated

automatically. For details about the client's operations, see its user guide.

To set up a WPS connection:

Step 1 Ensure that is steady on.

Step 2 Press and hold until blinks to activate the WPS

connection on your device.

Step 3 Activate the WPS connection on the client.

5 Using the Web Management Page

You can configure and manage the device settings using the web management

page.

Step 1 Launch a web browser, and enter http://192.168.1.1 in the address bar.

Step 2 Enter the password, and log in to the web management page. The

default password is admin.

Note:

To protect your device, only one user can log in to the web management

page at a time.

To protect your account, change the password promptly. For details, see

the help information on the web management page.

6 Accessing the Internet

After a connection between your device and the client is set up, you can access

the Internet using the modes listed in the following table.

Select an appropriate mode according to your data service charging plan. For

example, if you are charged according to the length of time you are connected to

the Internet, it is recommended that you select manual mode. For details about

your data service charging plan, contact your service provider.

Mode Description

Auto After being powered on, the device will automatically connect to the

Internet. Once connected, the device will not automatically disconnect

from the Internet.

Manual Log in to the web management page, and then connect to or

disconnect from the Internet as prompted.

Demand

After being powered on, if there is data being transferred, the device

will automatically connect to the Internet. If no data is transferred

within a pre-defined period, the device will automatically disconnect

from the Internet.

7 Restoring Factory Defaults

If you are uncertain of which settings you have configured or changed, you can restore

the factory defaults that the device came with, and then reconfigure the device.

To restore the factory defaults, Use a sharp-pointed object to press and hold the RESET

button until all indicators ( , and ) blink.

After the factory defaults are restored, the device will restart automatically.

Attention:

Restoring factory defaults will delete all the device's user-defined settings and

restore all settings on the web management page to their defaults.

8 Further Tips

If the device does not work properly:

See the help information on the web management page.

Restart the device.

Restore the device to its factory defaults.

Contact your service provider.

9 Safety Information

This section contains important information about the operation 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 the device is prohibited. Do not use the device if

doing so causes danger or interference with other electronic devices.

Interference with medical equipment

Follow rules and regulations set forth by hospitals and health care facilities. Do

not use your device where prohibited.

Some wireless devices may affect the performance of hearing aids or

pacemakers. Consult your service provider for more information.

Pacemaker manufacturers recommend that a minimum distance of 15 cm be

maintained between a device and a pacemaker to prevent potential

interference with the pacemaker. If using a pacemaker, hold the device on the

side opposite the pacemaker and do not carry the device in your front pocket.

Areas with flammables and explosives

Do not use the device where flammables or explosives are stored (in a gas

station, oil depot, or chemical plant, for example). Using your device in these

environments increases the risk of explosion or fire. In addition, follow the

instructions indicated in text or symbols.

Do not store or transport the device in containers with flammable liquids, gases,

or explosives.

Operating environment

Avoid dusty, damp, or dirty environments. Avoid magnetic fields. Using the

device in these environments may result in circuit malfunctions.

Before connecting and disconnecting cables, stop using the device and

disconnect it from the power supply. Ensure that your hands are dry during

operation.

Place the device on a stable surface.

Keep the device away from electronic appliances that generate strong magnetic

or electric fields, such as a microwave oven or refrigerator.

During thunderstorms, power off your device and remove all cables connected

to it to protect against lightning strikes.

Do not use your device during thunderstorms to protect your device against any

danger caused by lightning.

Ideal operating temperatures are 0℃to 45℃. Ideal storage temperatures are

-30℃to 60℃.Extreme heat or cold may damage your device or accessories.

Keep the device and accessories in a well-ventilated and cool area away from

direct sunlight. Do not enclose or cover your device with towels or other objects.

Do not place the device in a container with poor heat dissipation, such as a box

or bag.

To protect your device or accessories from fire or electrical shock hazards,

avoid rain and moisture.

Keep the device away from sources of heat and fire, such as a heater,

microwave oven, stove, water heater, radiator, or candle.

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, immediately stop using it, power it

off, and remove all cables connected to it. Then, contact an authorized service

center.

Do not block device openings. Reserve a minimum of 10 cm around the device

to dissipate heat.

Stop using your device or applications for a while if the device is overheated. If

skin is exposed to an overheated device for an extended period, low

temperature burn symptoms, such as red spots and darker pigmentation, may

occur.

Do not touch the device's antenna. Otherwise, communication quality may be

reduced.

Do not allow children or pets to bite or suck the device or accessories. Doing so

may result in damage or explosion.

Observe local laws and regulations, and respect the privacy and legal rights of

others.

The device should be installed and operated with a minimum distance of 20 cm

between the radiator and your body.

Keep the device in a place with good reception. The distance between the

device and other metal materials (such as metal brackets or metal doors and

windows) should be greater than 25 cm and the distance between the device

should be greater than 30 cm.

Child's safety

Comply with all precautions with regard to child's safety. Letting children play

with the device or its accessories may be dangerous. The device includes

detachable parts that may present a choking hazard. Keep away from children.

The device and its accessories are not intended for use by children. Children

should only use the device with adult supervision.

Accessories

Using an unapproved or incompatible power adapter, charger or battery may

cause fire, explosion or other hazards.

Choose only accessories approved for use with this model by the device

manufacturer. The use of any other types of accessories may void the warranty,

may violate local regulations and laws, and may be dangerous. Please contact

your retailer for information about the availability of approved accessories in

your area.

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