Huawei EM775 User manual

Copyright © 2009 Huawei Technologies Co., Ltd.
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means without prior written consent of Huawei Technologies Co., Ltd.
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property of their respective holders.
Notice
The information in this document is subject to change without notice. Every effort
has been made in the preparation of this document to ensure accuracy of the
contents, but all statements, information, and recommendations in this document
do not constitute the warranty of any kind, express or implied.

i
Table of Contents
Getting to Know the EM775............................................................. 1
Requirements for the PC................................................................. 2
Preparing the EM775...................................................................... 3
Installation Guide .......................................................................... 4
Safety Information........................................................................10

1
Thank you for purchasing Huawei EM775 HSPA Module.
Note:
This manual briefly describes the preparation, the process for
installing/uninstalling, and safety precautions for using Huawei EM775 HSPA
Module (hereinafter referred to as the EM775).
You are recommended to read the manual before using the EM775.
The signal strength and the transmission rate are affected by the actual
environment.
Getting to Know the EM775
The following figure shows the appearance of the EM775. The actual product may
differ.
1
3
2
2
Mini PCI Express connector
It is used to connect the EM775 to the WWAN Mini PCI Express interface of the PC.

2
Screw holes
They are used to fix the EM775 on the main board of the PC with screws.
Antenna interfaces
They are used to connect antennas.
EM775 has an external antenna which connect with laptop.
The max gain which is allowed of external antenna is ：
900M<2.1dBi
850M<4.28dBi
1900M<3.6dBi
1800M<3.6dBi
2100M<4.3dBi
Requirements for the PC
To use the EM775, the PC must meet the following requirements:
WWAN Mini PCI Express interface.
Windows 2000 SP4, Windows XP SP2, Windows Vista and Linux 2.6.18 or
above
The hardware of your PC must meet or exceed the recommended system
requirements for the installed version of OS.
Display resolution: 800 × 600 or above.

3
Preparing the EM775
Locate the WWAN Mini PCI Express interface on the main board of the PC. Find the
main antenna and the auxiliary antenna.
If a USIM/SIM card is provided by your service provider, insert the USIM/SIM card
into the USIM/SIM card slot on the main board of the PC.
Note:
In certain cases, your PC may be disassembled only by the professionals.
Before you install the EM775 onto the main board of the PC, consult the PC
manufacturer or read the user manual of the PC.

4
Installation Guide
Installing the EM775 onto the Main Board of the PC
1. Insert the Mini PCI Express connector of the EM775 into the WWAN Mini PCI
Express interface on the main board of the PC.
2. Press downwards to fix the EM775 in the module slot.

5
3. Use a screwdriver to fix the EM775 onto the main board of the PC with two
screws provided in the EM775 packing box.
4. Insert the connector of the main antenna into the MAIN antenna interface (M)
of the EM775 according to the indication on the label of the EM775. Insert the
connector of the auxiliary antenna into the AUX antenna interface (A) of the
EM775 in the same way.
Note:
Insert the antenna connectors vertically into the antenna interfaces of the
EM775.

6
Do not pinch the antenna cable or damage the connectors. Otherwise, the
wireless performance of the EM775 may be reduced or the EM775 cannot
work normally.
Ensure that the antenna cables are routed through the channel in the frame of
the PC and do not lay across the raised edges of the frame.

7
Removing the EM775 from the Main Board of the PC
1. Disconnect the antenna cables from the EM775. You can lift the connectors
with a small screwdriver.
2. Remove the two screws with the screwdriver.

8
3. Slide backwards the two clips to release the EM775 from the slot. Then, lift up
the EM775.
Installing the EM775 Software
A disk is provided in the EM775 packing box. The disk contains the management
program and the driver of the EM775.
1. Insert the disk into the disk drive of the PC.
2. Find the AutoRun.exe file under the disk path. Then double-click
AutoRun.exe to run the program.
3. Follow the prompts of the installation wizard.
4. After the program is installed, the shortcut icon of the management program
is displayed on the desktop.
Uninstalling the Management Program
1. Choose Start > Control Panel.
2. Find the management program, and click Add/Remove Program to
uninstall the management program.