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Communications through universal asynchronous receiver/transmitter (UART) serial ports is convenient and reliable. UART serial ports are widely adopted in Huawei modules. This design guide describes the serial port specifications of Huawei modules and provides recommended design schemes for peripheral circuits. When designing UART serial ports for Huawei modules, customers can refer to this document.

Most of Huawei modules provide 8-wire serial ports with flow control. These 8-wire serial ports can also be used as 2-wire or 4-wire serial ports.

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This document briefly describes the power management related connection hardware
between the host and module.

This document is only applicable to the Windows XP/Android system; and is not
applicable to the Windows 7/8/blue system and later systems released by Microsoft
because of their feature (they defines their own sleep, wakeup and remote wakeup
standards).

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Data sheet for ME909u-523 (US).

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Uploaded at
2013-09-23 11:20:57
Last updated
2015-09-24 19:17:12
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Huawei ME909u-523D Mini PCI Express - US - AT&T
Huawei ME909u-523D - US - AT&T

This document describes the hardware application interfaces and air interfaces provided by HUAWEI ME909u-521 Mini PCIe module.

This document helps hardware engineer to understand the interface specifications, electrical features and related product information of the ME909u-521 module.

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Uploaded at
2014-03-14 12:28:53
Last updated
2015-09-24 19:00:17
Version
1
Related products
Huawei ME909u-523D Mini PCI Express - US - AT&T
Huawei ME909u-521 Mini PCI Express - EU/ASIA

This document is intended to provide references for customers to choose appropriate
command sequences to start using the ME909u-523 module in a faster manner. This
document also contains examples and relevant description.

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Uploaded at
2015-03-17 10:57:55
Last updated
2015-09-24 18:11:45
Version
04
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Huawei ME909u-523D Mini PCI Express - US - AT&T
Huawei ME909u-523D - US - AT&T

This document describes AT command interface specification that is supported by
Huawei mobile broadband product ME909u-523 module.

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Uploaded at
2015-03-17 11:04:27
Last updated
2015-09-24 18:11:33
Version
02
Related products
Huawei ME909u-523D Mini PCI Express - US - AT&T
Huawei ME909u-523D - US - AT&T

This document describes the hardware application interfaces and air interfaces
provided by HUAWEI ME909u-523 LTE LGA module .

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Uploaded at
2015-03-17 11:07:15
Last updated
2015-09-24 18:11:23
Version
1
Related products
Huawei ME909u-523D Mini PCI Express - US - AT&T
Huawei ME909u-523D - US - AT&T

This document describes the hardware application interfaces and air interfaces provided by HUAWEI ME909u-523 Mini PCIe module.

Download

Uploaded at
2015-03-17 11:09:05
Last updated
2015-09-24 18:11:13
Version
02
Related products
Huawei ME909u-523D Mini PCI Express - US - AT&T

This is the datasheet for the Huawei module ME909u-523 Mini PCI Express.

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Uploaded at
2015-06-16 18:11:47
Last updated
2015-09-24 17:43:01
Version
01
Related products
Huawei ME909u-523D Mini PCI Express - US - AT&T