Frequently Asked Questions：

If you have any questions, please call the Advisory：86-755-83769996

First, the components

1, the EU electronic products, "two orders" background?

February 13, 2003, the European Commission issued a "Directive on Waste Electrical and Electronic Equipment" (WEEE) and "on the electrical and electronic equipment

Restriction of Hazardous Substances Directive "(RoHs) (hereinafter referred to two orders), Directive, since August 13, 2005, the EU market

Electrical and electronic products manufacturer must take up their end of life product recycling, disposal and recycling costs. July 1, 2006, the access to EU market

The six categories of electrical and electronic products to disable harmful substances. Both pieces of legislation will give our electrical and electronic products exports to Europe have a significant impact. For in-depth

Understand the EU countries and key enterprises in order progress and implementation, May 12 ~ 27, the Ministry of Commerce delegation to visit the Electrical and Mechanical Division

European countries and the countries concerned government departments, associations and multinational companies for the exchange. Legislative background of recent decades, the global electronic power

Gas industry showed expansive development. Electrical and electronic industry in the field of technology updates more quickly, shortening the product upgrade cycle. With

, The electronic structure of the product presents increasingly complex momentum. Electrical and electronic industry in the convenience and benefits to mankind but also to the community with

Mountains of electronic waste to countries in the world to dispose of scrap electrical and electronic products increasingly heavy burden. Electrical and electronic waste to the global environment

Negative impact is increasingly grim. 2001 to 2002, the EU, the only German state spending for handling e-waste as much as

3-500000000 euros. In view of this, the EU WEEE and ROHS hopes to develop two "sister" environmental laws to control the pollution of the environment

To ensure sustainable development of EU industry, while highlighting its European, and global environmental pioneer in establishing the image. The EU believes that too

To the product packaging, old batteries, beverage packaging and scrap cars and other products recycling system established to ensure the successful experience of WEEE and ROHS refers to the

Order to achieve the desired effect. These two laws after a 10-year gestation period.

2, What is I2C BUS?

In serial 2-wire 400kHz conditions (in full compliance with the world standard I2C BUS).
Is the most common interface is a digital home appliances, Bluetooth module, the main white goods are widely used.

3, What is EEPROM?

Electrically Erasable Programable ROM (electrically erasable programmable non-volatile memory).
Mounted on a board input signal, the data can be rewritten for each address.
ROHM's EEPROM can rewrite the industry's highest level of the number of 100 million times, data can be stored for 40 years. All models in the series,

The memory cells are used ROHM original W-CELL (double unit) technology, unmatched reliability and proud (data "with

Machine failure "is zero).

Second, Huawei MI module

1, on the product specifications for EM660 spec, detailed product datasheet, upgrade package, drive

Program, background software, AT command set documentation requirements.

Re: EM660 currently have detailed product specifications (EXCEL form), datasheet (PDF format,

More pages), China Telecom standard AT command set documentation, upgrade China Telecom, China Telecom, the background process

Sequence, Huawei generic version of daemon, driver installation package, but all our staff by the market of document attachments

Outward, if necessary, can be made ​​to the personnel needs of our market.

2, EM660 and EM770 driver is shared?

Re: Yes, the driver installation process temporarily EM660 2.88 as a compressed package, version 2.88.

If there are updates will promptly notify.

3, the module supports what operating system? Whether to support the linux operating system?

Re: EM660 supports Windows 2000/Windows XP / Windows Vista / Linux

Only supports kernel version 2.6.18 and above versions, and Linux currently only supports the drive, do not provide

Background software other operating system version, not supported.

4, EVDO module and W is the module (EM770) share the AT command set commands?

Reply: EVDO module and W module, there are some differences. Suggested AT command set reference their documents.

5, EM660 module support WIN7? Is already certified by the WQHL?

Reply: EM660 as a modem products, Huawei internal inspection has been tested with WIN7

6, I installed the background, why the module still does not work?

Re: When you get a module on windows operating system, you need to install two software modules

To work.

First, install the driver.

Second, install the Background

For the background you can drive and our marketing staff to make demands.

If you have other questions can refer to the following description of the problem 11.

7, EVDO standards and specifications known to support your download 3.1Mbps, 1.8Mbps upload the

Rate, but why the actual test time is less than the rate it?

Answer: First, you need to make sure when the test is whether the use of the EVDO network you need to make sure this

The card is EVDO card.

You then need to download the statement is 3.1Mbps, 1.8Mbps upload data refers to the theory, the rate and network

Network environment, the signal strength is closely related to the use of resources in the network properly, antenna design, under normal circumstances

EM660 is currently the test data can achieve this rate of addition rate of more than one thread

The rate will be faster thread.