Huawei B681 54 User Manual

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.

1

Appearance

1.	Power button	6.	LAN indicators
2.	Wi-Fi/WPS button	7.	External antenna port
3.	Wi-Fi/WPS indicator	8.	Telephone port
4.	Network status indicator	9.	Power port
5.	Power indicator	10.	LAN ports

Indicators

	Indicator		Status
			 Steady on: Wi-Fi turned on or data transfer
			in progress.
	Wi-Fi/WPS indicator		 Blinking: WPS connection being set up.
			 Off: Wi-Fi turned off.
			 Blinking red fast: Subscriber Identity Module
			(SIM) card unavailable (SIM card not
			installed or malfunctioning, or PIN code not
			verified).
	Network status indicator		 Steady yellow: device registered with the
			network.

Steady green: device connected to the Internet.

Off: no signal received.

		 Steady on: device powered on.
	Power indicator	 Off: device powered off.
	/	 Steady on: Ethernet cable connected.
			Blinking: data transfer in progress.
	LAN indicators
			Off: Ethernet cable not connected.

2

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.

3

(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.

4

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.

5