Huawei EM770W User Manual

Copyright © Huawei Technologies Co., Ltd. 2009. All rights reserved.

No part of this document may be reproduced or transmitted in any form or
by any means without prior written consent of Huawei Technologies Co. ,
Ltd.
The product described in this manual may include copyrighted software of
Huawei Technologies Co., Ltd and possible licensors. Customers shall not
in any manner reproduce, distribute, mod ify, decompile, disassemble,
decrypt, extract, reverse eng ineer, lease, assign, or sublicense the said
software, unless such restrictions are prohibited by applicable laws or such
actions are approved by respective copyright holders under licenses.

Trademarks and Permissions

, , and are trademarks or registered trademarks of
Huawei Technologies Co., Ltd.
Other trademarks, product, service and company names mentioned are
the property of their respective owners.

Notice

Some features of the product and its accessories described herein rely on
the software installed, capacities and settings of local network, and may
not be activated or may be limite d by local network operators or network
service providers, thus the descriptions herein may not exactly match the
product or its accessories you purchase.
Huawei Technologies Co., Ltd reserves the right to change or modify any
information o r spec ifica tion s con tain ed in t his ma nua l with out pr ior n otic e
or obligation.

NO WARRANTY

THE CONTENTS OF THIS MANUAL ARE PROVIDED “AS IS”. EXCEPT A S
REQUIRED BY APPLICABLE LAWS, NO W ARRANTIES OF ANY KIND, EITHER
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, ARE MADE IN RELATION TO THE ACCURACY, RELIABILITY OR
CONTENTS OF THIS MANUAL.
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW , IN NO CA SE
SHALL HUAWEI TECHNOLOGIES CO., LTD BE LIABLE FOR ANY SPECIAL,
INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, OR LOST
PROFITS, BUSINESS, REVENUE, DATA, GOODWILL OR ANTICIPATED
SAVINGS.

Import and Export Regulations

Customers shall comply with all applicable export or import laws and
regulations and will obtain all necessary governmental pe rmits and
licenses in order to export, re-export or import the product mentioned in
this manual including the software and technical data therein.

Warnings and Precautions

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

Electronic Device

Do not use your device if using the device is prohibited. Do not use the
device when using the device causes da nger or interference with elect ronic
devices.

Medical Device

z Follow rules and regulations set forth by hospitals and health care

facilities. Do not use your device when using the device is prohibited.

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

pacemakers. For any such prob lems, consult your service provider.

z If you are using an electronic medical device, consult the doctor or the

device manufacturer to confirm whether radio w aves affect the
operation of this device.

Potentially Explosive Atmosphere

Do not use your device in any area with a potentially explosiv e 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 serv ice 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 potent ially 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

z Observe local laws and regulations while using the device. To prevent

accidents, do not use your wireless device while driving.

z RF signals may affect electronic systems of motor vehicles. For more

information, consult the vehicle manufacturer.

z 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 ow ing to the
strong force when the air bag inflates.

z 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 aircraft and disrupt the wireless telephone network. It
may also be considered illega l.

Operating Environment

z Do not use the device in dusty, damp, and dirty places or places with

magnetic fields . Otherwise, it may result in malfunction of the circuit.

z On a stormy day with thunder, do not use your device when it is being

charged, to prevent any danger caused by lightning.

z While using the device, observe th e local laws and regulations, and

respect others' privacy and legal rights.

Safety of Children

Comply with all precautions with regard to children's safety. Letting the
child play with your device or its accessories, which may include parts that
can be detached from the device, may be dangerous, as it may present a
choking hazard. Ensure that small children are kept away from the device
and accessories.

Accessories

Use the accessories delivered only by the manufacturer. Using accessories
of other manufacturers or vendors with this device model may in validate
any approval or warranty app l ica ble to the device, result in the
non-operation of the device, and cause danger.

Cleaning and Maintenance

It is normal that your wireless device gets hot wh e n y ou use or cha rge it.
Before you clean or maintain the wireless device, stop all applications and
disconnect the wireless device from your PC.

z Use your wireless device and accessories with care and in a clean

environment. Keep the wire less device away from a fire or a lit cigarette.

z Protect your wireless device and accessories from water and v apor, and

keep them dry.

z Do not drop, throw, or bend your wireless device.
z Clean your wireless device with a piece of damp and soft antistatic cloth.

Do not use any chemical detergent, powder, or other chemical agents
(such as alcohol and benzene) to clean the device.

z Keep the ambient temperature between -10℃ to +55℃ for using the

device.

FCC Statement

* This device must be installed and operated with a minimum distance of
20 cm between the radiator and your body
.

15.19
NOTICE:
This device complies with Part 15 of the FCC Rules [and with ICES-003 of
Industry Canada].
Operation is subject to the following two conditions:

1) This device may not cause harmful interference.And

2) This device must accept any in terference received, including

interference that may cause undesired o peration.

15.21
NOTICE:
Changes or modifications made to this device not expressly approved by
Huawei Technologies Co., Ltd. may void the FCC authorization to operate
this device.

15.105
NOTE:
This device has been tested and found to comply with the limits for a Class
B digital device, pursuant to Part 15 of the FCC Ru les. These limits are
designed to provide reasonable protect ion against harmfu l interf erence in
a residential insta llation . This devi ce gener at es use s and ca n ra diate ra dio
frequency energy and, if not installed and used in accordance with the
instructions, m ay cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a
particular installation. If this device does cause harmful interference to
radio or television reception, which can be determined by connecting or
disconnecting the device to a PC, the user is encouraged to try to correct
the interference by adopting one or more of the following measures:

z Reorient or relocate the receiving antenna.
z Increase the distance between the device and the receiver.