HUAWEI EM820W HSPA+ PC Embedded Module

 

 

 

Hardware Guide

 

 

 

Description of the Application Interfaces

 

 

 

 

 

 

 

 

 

Definition of the EM820W Mini PCI Express pins

 

 

 

 

 

 

 

 

 

 

 

Pin

 

 

Mini PCI

HUAWEI Pin

 

Additional

Direction to

 

No.

 

 

Express

Description

 

Description

Module

 

 

 

 

Standard

 

 

 

 

 

 

 

 

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

3.3Vaux

VCC_3V3

 

3.3 V DC supply rails

Input

 

 

 

 

 

from the PC side.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

COEX1

NC

 

Not connected.

-

 

 

 

 

 

 

 

 

 

 

4

 

 

GND

GND

 

Mini Card ground.

-

 

 

 

 

 

 

 

 

 

 

5

 

 

COEX2

NC

 

Not connected.

-

 

 

 

 

 

 

 

 

 

 

6

 

 

1.5 V

NC

 

Not connected.

-

 

 

 

 

 

 

 

 

 

 

7

 

 

CLKREQ#

NC

 

Not connected.

-

 

 

 

 

 

 

 

 

 

8

 

 

UIM_PWR

UIM_PWR

Power source for the

Output

 

 

 

 

 

external UIM/SIM

 

 

 

 

 

 

 

card.

 

 

 

 

 

 

 

 

 

 

 

9

 

 

GND

GND

 

Mini Card ground.

-

 

 

 

 

 

 

 

 

 

10

 

 

UIM_DATA

UIM_DATA

External UIM/SIM

Input/output

 

 

 

 

 

data signal.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

 

 

REFCLK-

NC

 

Not connected.

-

 

 

 

 

 

 

 

 

 

 

12

 

 

UIM_CLK

UIM_CLK

 

External UIM/SIM

Output

 

 

 

 

 

clock signal.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

 

 

REFCLK+

NC

 

Not connected.

-

 

 

 

 

 

 

 

 

 

 

14

 

 

UIM_RESET

UIM_RESET

 

External UIM/SIM

Output

 

 

 

 

 

reset signal.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

GND

GND

 

Mini Card ground.

-

 

 

 

 

 

 

 

 

 

 

16

 

 

UIM_Vpp

NC

 

Not connected.

-

 

 

 

 

 

 

 

 

 

 

17

 

 

Reserved

NC

 

Not connected.

-

 

 

 

 

 

 

 

 

 

 

18

 

 

GND

GND

 

Mini Card ground.

-

 

 

 

 

 

 

 

 

 

 

19

 

 

Reserved

NC

 

Not connected.

-

 

 

 

 

 

 

 

 

 

20

 

 

W_DISABLE#

W_DISABLE_N

For ending the

Input

 

 

 

 

 

wireless

 

 

 

 

 

 

 

communications.

 

 

 

 

 

 

 

 

 

 

 

21

 

 

GND

GND

 

Mini Card ground.

-

 

 

 

 

 

 

 

 

 

 

22

 

 

PERST#

NC

 

Not connected.

-

 

 

 

 

 

 

 

 

 

 

23

 

 

PERn0

NC

 

Not connected.

-

 

 

 

 

 

 

 

 

 

 

24

 

 

3.3Vaux

VCC_3V3

 

3.3V DC supply rail

Input

 

 

 

 

 

 

from the PC side.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Issue 01 (2010-12-31)

Huawei Proprietary and Confidential

6

Copyright © Huawei Technologies Co., Ltd.

 

 

 

 

 

Page 13
Image 13
Huawei EM820W VCC3V3, COEX1, Gnd, COEX2, Clkreq#, Uimpwr, Uimdata, Uimclk, Refclk+, Uimreset, WDISABLE# Wdisablen

EM820W specifications

The Huawei EM820W is a cutting-edge mobile broadband device that exemplifies Huawei's commitment to innovation and excellence in the telecommunications sector. Designed for seamless connectivity, the EM820W caters primarily to users who demand high-speed data access while on the move.

One of the standout features of the Huawei EM820W is its support for high-speed 4G LTE connectivity. With download speeds that can reach up to 150 Mbps and upload speeds of up to 50 Mbps, users can enjoy smooth streaming, rapid downloads, and responsive online gaming experiences. This capability makes the device an ideal choice for both individual users and business professionals who rely on robust internet access.

The EM820W is equipped with a compact and lightweight design, making it highly portable. This device can be easily carried in a pocket or bag, allowing users to stay connected wherever they go. Its plug-and-play feature simplifies the setup process, ensuring that even those who are not tech-savvy can easily get online.

Another notable aspect of the Huawei EM820W is its compatibility with a wide range of operating systems, including Windows, macOS, and various distributions of Linux. This versatility means that users can connect the device to their preferred platforms without facing compatibility issues, enhancing the overall user experience.

The device also incorporates advanced security features to safeguard user data, including built-in encryption protocols. This is particularly important for business users who require secure connections for sensitive transactions and communications.

In addition to its connectivity capabilities, the EM820W showcases energy-efficient technologies that optimize battery performance. The device is designed to consume minimal power, allowing users to prolong usage times without frequently recharging.

The Huawei EM820W comes with a user-friendly interface, enabling users to easily manage their connections and monitor data usage. This feature is valuable for those who need to track their internet consumption to avoid exceeding data limits imposed by service providers.

With its blend of speed, portability, and user-oriented features, the Huawei EM820W stands out as a reliable solution for those seeking robust mobile broadband capabilities. Whether for personal use or professional needs, this device ensures that users remain connected in an increasingly digital world.