Quectel UC20 Windows USB Driver User Guide V1.0
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UC20 Windows USB Driver
User Guide
UMTS/HSPA Module Series
Rev. UC20_Windows_USB_Driver_User_Guide_V1.0
Date: 2013-06-27
www.quectel.com
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Our aim is to provide customers with timely and comprehensive service. For any
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Quectel Wireless Solutions Co., Ltd.
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Mail:info@quectel.com
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http://www.quectel.com/support/salesupport.aspx
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GENERAL NOTES
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Copyright © Quectel Wireless Solutions Co., Ltd. 2013. All rights reserved.
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About the document
History
Revision
Date
Author
Description
1.0
2013-06-27
Clare CHEN
Initial
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Contents
About the document ................................................................................................................................... 2
Contents ....................................................................................................................................................... 3
Figure Index ................................................................................................................................................. 4
Table Index ................................................................................................................................................... 5
1 Introduction .......................................................................................................................................... 6
2 Product Overview ................................................................................................................................ 7
3 USB Interface Descriptor .................................................................................................................... 8
3.1. Composite Communication Device Enumeration ........................................................................ 8
3.1.1. Device Descriptor ............................................................................................................... 8
3.1.2. Configuration ...................................................................................................................... 9
3.1.3. Interface 0 (DM Port) .......................................................................................................... 9
3.1.4. Interface 1 (NMEA Port) ................................................................................................... 11
3.1.5. Interface 2 (AT Port) ......................................................................................................... 12
3.1.6. Interface 3 (Modem Port) ................................................................................................. 13
3.1.7. Interface 4 (NDIS Port) ..................................................................................................... 15
4 Driver Package ................................................................................................................................... 18
4.1. Driver Files Name ...................................................................................................................... 18
4.2. Driver Files Content ................................................................................................................... 18
5 Install USB Driver ............................................................................................................................... 19
5.1. Install the Driver of the Five Unknown Device ........................................................................... 19
6 Module Testing ................................................................................................................................... 25
6.1. Test Module by Sending AT commands ..................................................................................... 25
6.2. Create PPP Connection via Modem Port .................................................................................. 26
6.2.1. Set Parameters for UC20 Module’s USB Modem............................................................ 26
6.2.2. Setup a new Dial-up Connection via USB Modem .......................................................... 27
6.2.3. Dial-up or Disconnect via the Dial-up Connection ........................................................... 33
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Figure Index
FIGURE 1：UNKNOWN DEVICES SHOWN IN DEVICE MANAGER ............................................................. 20
FIGURE 2：INSTALLATION STEPS-1 ............................................................................................................. 21
FIGURE 3：INSTALLATION STEPS-2 ............................................................................................................. 22
FIGURE 4：INSTALLATION STEPS-3 ............................................................................................................. 22
FIGURE 6：INSTALLATION STEPS-5 ............................................................................................................. 23
FIGURE 8：CONFIRM THE SERIAL PORT NUMBER-2 ................................................................................. 26
FIGURE 9：MODEM SETTING ........................................................................................................................ 27
FIGURE 10：SETUP A DIAL-UP CONNECTION-1 .......................................................................................... 28
FIGURE 11：SETUP A DIAL-UP CONNECTION-2 .......................................................................................... 28
FIGURE 12：SETUP A DIAL-UP CONNECTION-3 .......................................................................................... 29
FIGURE 13：SETUP A DIAL-UP CONNECTION-4 .......................................................................................... 29
FIGURE 14：SETUP A DIAL-UP CONNECTION-5 .......................................................................................... 30
FIGURE 15：SETUP A DIAL-UP CONNECTION-6 .......................................................................................... 30
FIGURE 16：SETUP A DIAL-UP CONNECTION-7 .......................................................................................... 31
FIGURE 17：SETUP A DIAL-UP CONNECTION-8 .......................................................................................... 31
FIGURE 18：SETUP A DIAL-UP CONNECTION-9 .......................................................................................... 32
FIGURE 19：SETUP A DIAL-UP CONNECTION-10 ........................................................................................ 32
FIGURE 21：USE A CREATED DIAL-UP CONNECTION-2 ............................................................................ 34
FIGURE 22：USE A CREATED DIAL-UP CONNECTION-3 ............................................................................ 34
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Table Index
TABLE 1: INTERFACE DESCRIPTION ............................................................................................................... 7
TABLE 2: DEVICE DESCRIPTOR....................................................................................................................... 8
TABLE 3: CONFIGURATION DESCRIPTOR\CONFIGURATION ....................................................................... 9
TABLE 4: CONFIGURATION DESCRIPTOR\INTERFACE 0 .............................................................................. 9
TABLE 5: CONFIGURATION DESCRIPTOR\INTERFACE 0\ENDPOINT DESCRIPTOR ............................... 10
TABLE 6: CONFIGURATION DESCRIPTOR\INTERFACE 0\ENDPOINT DESCRIPTOR ............................... 10
TABLE 7: CONFIGURATION DESCRIPTOR\INTERFACE 1 ............................................................................. 11
TABLE 8: CONFIGURATION DESCRIPTOR\INTERFACE 1\ENDPOINT DESCRIPTOR ................................ 11
TABLE 9: CONFIGURATION DESCRIPTOR\INTERFACE 1\ENDPOINT DESCRIPTOR ............................... 12
TABLE 10: CONFIGURATION DESCRIPTOR\INTERFACE 2 ......................................................................... 12
TABLE 11: CONFIGURATION DESCRIPTOR\INTERFACE 2\ENDPOINT DESCRIPTOR ............................. 13
TABLE 12: CONFIGURATION DESCRIPTOR\INTERFACE 2\ENDPOINT DESCRIPTOR ............................. 13
TABLE 13: CONFIGURATION DESCRIPTOR\INTERFACE 3 ......................................................................... 13
TABLE 14: CONFIGURATION DESCRIPTOR\INTERFACE 3\ENDPOINT DESCRIPTOR ............................. 14
TABLE 15: CONFIGURATION DESCRIPTOR\INTERFACE 3\ENDPOINT DESCRIPTOR ............................. 14
TABLE 16: CONFIGURATION DESCRIPTOR\INTERFACE 3\ENDPOINT DESCRIPTOR ............................. 15
TABLE 17: CONFIGURATION DESCRIPTOR\INTERFACE 4 ......................................................................... 15
TABLE 18: CONFIGURATION DESCRIPTOR\INTERFACE 4\ENDPOINT DESCRIPTOR ............................. 16
TABLE 19: CONFIGURATION DESCRIPTOR\INTERFACE 4\ENDPOINT DESCRIPTOR ............................. 16
TABLE 20: CONFIGURATION DESCRIPTOR\INTERFACE 4\ENDPOINT DESCRIPTOR ............................. 16
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1 Introduction
This document mainly introduces how to install USB driver of UC20 module in Windows XP/Vista/7/8, and
how to test UC20 module in this operating system after the USB driver is loaded successfully.
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2 Product Overview
Quectel UC20 is a 3G wireless WCDMA module. You can use it to implement some functions such as
Voice Call and browsing the Internet and so on.
In general, the UC20 module will create five interfaces when you connect it with embedded equipments.
These five interfaces have different functionalities. The details are shown as below:
Table 1: Interface Description
DM interface
Diagnose port
NMEA interface
For GPS NMEA sentence output
AT interface
For AT commands
Modem interface
For PPP connections and AT commands
NDIS interface
Network driver interface
The NDIS interface is temporarily unavailable.
NOTE
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3 USB Interface Descriptor
U20 module is a composite communication device. After USB driver is installed in Windows, Windows will
automatically read the device descriptor and the configuration descriptor of the UC20 module, meanwhile
the interface devices will be created according to the interface descriptors of the configuration descriptor.
3.1. Composite Communication Device Enumeration
3.1.1. Device Descriptor
Table 2: Device Descriptor
Name
Value
Dec
Hex
bLength
18
18
0x12
bDescriptorType
DEVICE
1
0x01
bcdUSB
2.0
512
0x0200
bDeviceClass
Class defined at interface level
0
0x00
bDeviceSubClass
Subclass defined at interface level
0
0x00
bDeviceProtocol
None
0
0x00
bMaxPacketSize0
64
64
0x40
idVendor
0x05c6
1478
0x05c6
idProduct
0x9003
36867
0x9003
bcdDevice
0.0
0
0x0000
iManufacturer
3
3
0x03
iProduct
2
2
0x02
iSerialNumber
0
0
0x00
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bNumConfigurations
1
1
0x01
3.1.2. Configuration
Table 3: Configuration Descriptor\Configuration
Name
Value
Dec
Hex
bLength
Valid
9
0x09
bDescriptorType
CONFIGURATION
2
0x02
wTotalLength
138 bytes
138
0x008A
bNumInterfaxe
5
5
0x05
bConfigurationValue
1
1
0x01
iConfiguration
1
1
0x01
bmAttributes
0xE0
224
0xE0
bmAttributes.RemoteWakeup
Supported
1
0x01
bmAttributes.SelfPowered
Yes
1
0x01
bmAttributes.Reserved7
One
1
0x01
bMaxPower
500 mA
250
0xFA
3.1.3. Interface 0 (DM Port)
Table 4: Configuration Descriptor\Interface 0
Name
Value
Dec
Hex
bLength
Valid
9
0x09
bDescriptorType
INTERFACE
4
0x04
bInterfaceNumber
0
0
0x00
bAlternateSetting
0
0
0x00
bNumEndpoints
2
2
0x02
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bInterfaceClass
Vendor-specific
255
0xFF
bInterfaceSubClass
Vendor-specific
255
0xFF
bInterfaceProtocol
Vendor-specific
255
0xFF
iInterface
0
0
0x00
Endpoint Descriptor 1
Table 5: Configuration Descriptor\Interface 0\Endpoint Descriptor
Name
Value
Dec
Hex
bLength
Valid
7
0x07
bDescriptorType
ENDPOINT
5
0x05
bEndpointAddress
1 IN
129
0x81
bmAttributes
Transfer-Types: BULK
2
0x02
wMaxPacketSize
512 bytes
512
0x0200
bInterval
At most one NAK each 32
microframes
32
0x20
Endpoint Descriptor 2
Table 6: Configuration Descriptor\Interface 0\Endpoint Descriptor
Name
Value
Dec
Hex
bLength
Valid
7
0x07
bDescriptorType
ENDPOINT
5
0x05
bEndpointAddress
1 OUT
1
0x01
bmAttributes
Transfer-Types: BULK
2
0x02
wMaxPacketSize
512 bytes
512
0x0200
bInterval
At most one NAK each 32
microframes
32
0x20
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3.1.4. Interface 1 (NMEA Port)
Table 7: Configuration Descriptor\Interface 1
Name
Value
Dec
Hex
bLength
Valid
9
0x09
bDescriptorType
INTERFACE
4
0x04
bInterfaceNumber
1
1
0x01
bAlternateSetting
0
0
0x00
bNumEndpoints
2
2
0x02
bInterfaceClass
Vendor-specific
255
0xFF
bInterfaceSubClass
Vendor-specific
255
0xFF
bInterfaceProtocol
Vendor-specific
255
0xFF
iInterface
0
0
0x00
Endpoint Descriptor 1
Table 8: Configuration Descriptor\Interface 1\Endpoint Descriptor
Name
Value
Dec
Hex
bLength
Valid
7
0x07
bDescriptorType
ENDPOINT
5
0x05
bEndpointAddress
2 IN
130
0x82
bmAttributes
Transfer-Types: BULK
2
0x02
wMaxPacketSize
512 bytes
512
0x0200
bInterval
At most one NAK each 32
microframes
32
0x20
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Endpoint Descriptor 2
Table 9: Configuration Descriptor\Interface 1\Endpoint Descriptor
Name
Value
Dec
Hex
bLength
Valid
7
0x07
bDescriptorType
ENDPOINT
5
0x05
bEndpointAddress
2 OUT
2
0x02
bmAttributes
Transfer-Types: BULK
2
0x02
wMaxPacketSize
512 bytes
512
0x0200
bInterval
At most one NAK each 32
microframes
32
0x20
3.1.5. Interface 2 (AT Port)
Table 10: Configuration Descriptor\Interface 2
Name
Value
Dec
Hex
bLength
Valid
9
0x09
bDescriptorType
INTERFACE
4
0x04
bInterfaceNumber
2
2
0x02
bAlternateSetting
0
0
0x00
bNumEndpoints
2
2
0x02
bInterfaceClass
Vendor-specific
255
0xFF
bInterfaceSubClass
Vendor-specific
255
0xFF
bInterfaceProtocol
Vendor-specific
255
0xFF
iInterface
0
0
0x00
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Endpoint Descriptor 1
Table 11: Configuration Descriptor\Interface 2\Endpoint Descriptor
Name
Value
Dec
Hex
bLength
Valid
7
0x07
bDescriptorType
ENDPOINT
5
0x05
bEndpointAddress
3 IN
131
0x83
bmAttributes
Transfer-Types: BULK
2
0x02
wMaxPacketSize
512 bytes
512
0x0200
bInterval
At most one NAK each 32
microframes
32
0x20
Endpoint Descriptor 2
Table 12: Configuration Descriptor\Interface 2\Endpoint Descriptor
Name
Value
Dec
Hex
bLength
Valid
7
0x07
bDescriptorType
ENDPOINT
5
0x05
bEndpointAddress
3 OUT
3
0x03
bmAttributes
Transfer-Types: BULK
2
0x02
wMaxPacketSize
512 bytes
512
0x0200
bInterval
At most one NAK each 32
microframes
32
0x20
3.1.6. Interface 3 (Modem Port)
Table 13: Configuration Descriptor\Interface 3
Name
Value
Dec
Hex
bLength
Valid
9
0x09
bDescriptorType
INTERFACE
4
0x04
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bInterfaceNumber
3
3
0x03
bAlternateSetting
0
0
0x00
bNumEndpoints
3
3
0x03
bInterfaceClass
Vendor-specific
255
0xFF
bInterfaceSubClass
Vendor-specific
255
0xFF
bInterfaceProtocol
Vendor-specific
255
0xFF
iInterface
0
0
0x00
Endpoint Descriptor 1
Table 14: Configuration Descriptor\Interface 3\Endpoint Descriptor
Name
Value
Dec
Hex
bLength
Valid
7
0x07
bDescriptorType
ENDPOINT
5
0x05
bEndpointAddress
4 IN
132
0x84
bmAttributes
Transfer-Types: INTERRUPT
3
0x03
wMaxPacketSize
64 bytes
64
0x0040
bInterval
At most one NAK each 32
microframes
32
0x20
Endpoint Descriptor 2
Table 15: Configuration Descriptor\Interface 3\Endpoint Descriptor
Name
Value
Dec
Hex
BLength
Valid
7
0x07
BDescriptorType
ENDPOINT
5
0x05
BEndpointAddress
5 IN
133
0x85
bmAttributes
Transfer-Types: BULK
2
0x02
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wMaxPacketSize
512 bytes
512
0x0200
bInterval
At most one NAK each 32
microframes
32
0x20
Endpoint Descriptor 3
Table 16: Configuration Descriptor\Interface 3\Endpoint Descriptor
Name
Value
Dec
Hex
bLength
Valid
7
0x07
bDescriptorType
ENDPOINT
5
0x05
bEndpointAddress
4 OUT
4
0x04
bmAttributes
Transfer-Types: BULK
2
0x02
wMaxPacketSize
512 bytes
512
0x0200
bInterval
At most one NAK each 32
microframes
32
0x20
3.1.7. Interface 4 (NDIS Port)
Table 17: Configuration Descriptor\Interface 4
Name
Value
Dec
Hex
BLength
Valid
9
0x09
bDescriptorType
INTERFACE
4
0x04
bInterfaceNumber
4
4
0x04
bAlternateSetting
0
0
0x00
bNumEndpoints
3
3
0x03
bInterfaceClass
Vendor-specific
255
0xFF
bInterfaceSubClass
Vendor-specific
255
0xFF
bInterfaceProtocol
Vendor-specific
255
0xFF
iInterface
0
0
0x00
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Endpoint Descriptor 1
Table 18: Configuration Descriptor\Interface 4\Endpoint Descriptor
Name
Value
Dec
Hex
bLength
Valid
7
0x07
bDescriptorType
ENDPOINT
5
0x05
bEndpointAddress
6 IN
134
0x86
bmAttributes
Transfer-Types: INTERRUPT
3
0x03
wMaxPacketSize
64 bytes
64
0x0040
bInterval
At most one NAK each 32
microframes
32
0x20
Endpoint Descriptor 2
Table 19: Configuration Descriptor\Interface 4\Endpoint Descriptor
Name
Value
Dec
Hex
BLength
Valid
7
0x07
BDescriptorType
ENDPOINT
5
0x05
BEndpointAddress
7 IN
135
0x87
bmAttributes
Transfer-Types: BULK
2
0x02
wMaxPacketSize
512 bytes
512
0x0200
bInterval
At most one NAK each 32
microframes
32
0x20
Endpoint Descriptor 3
Table 20: Configuration Descriptor\Interface 4\Endpoint Descriptor
Name
Value
Dec
Hex
bLength
Valid
7
0x07
bDescriptorType
ENDPOINT
5
0x05
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bEndpointAddress
5 OUT
5
0x05
bmAttributes
Transfer-Types: BULK
2
0x02
wMaxPacketSize
512 bytes
512
0x0200
bInterval
At most one NAK each 32
microframes
32
0x20
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4 Driver Package
The released USB driver package in Windows XP/Vista/7/8 of UC20 module includes three driver files,
each of which is corresponding to the driver file of Windows XP/ Vista, Windows 7, and Windows 8
respectively.
4.1. Driver Files Name
The names of the driver files in Windows XP/Vista/7/8 are listed as the following:
1) UC20WINXPVISTAUSB_SR01A01_CR01A01
2) UC20WIN7USB_SR01A01_CR01A01
3) UC20WIN8USB_SR01A01_CR01A01
The substring before the first char ‘_’shows which OS the driver file uses, and the substring after the char
is the version of the USB driver file.
4.2. Driver Files Content
The content of the driver files includes many information files, driver files and so on. You need not care
about the use of each file, and just select the parent folder of these files when you install the USB driver.
NOTE
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5 Install USB Driver
UC20 module is a USB composite device, containing five interfaces. You need to install the driver
software of these interfaces one by one when you connect UC20 module with your PC for the first time.
All the illustrations in this document are based on Windows 7 operating system.
5.1. Install the Driver of the Five Unknown Device
When you connect UC20 module with PC for the first time, the Device Manager will list five unknown
devices, shown as follows:
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Figure 1：Unknown Devices Shown in Device Manager
Next, install the driver software of the unknown devices one by one. Take driver installation of one
unknown device as an example. The detailed steps are shown as follows:
Right click one of the five unknown devices, select and click the item "Update Driver software" in the
popup menu.
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Figure 2：Installation Steps-1
Click "Browse my computer for driver software" in the popup window.
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Figure 3：Installation Steps-2
Click the button "Browse" to set the search path for installation, then find the folder of UC20 driver files in
your disk or CD-ROM, click "Next" to enter next step.
Figure 4：Installation Steps-3
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Click "Install this driver software anyway" each time this screen appears.
Figure 5：Installation Steps-4
When Windows finished installing the driver software, click "Close" to end the installation.
Figure 6：Installation Steps-5
Then continue to install the driver software of the other four devices. When installation is successful, the
information of the devices in Device Manager is shown as follows:
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Figure 7：Information of All Devices in Device Manager
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6 Module Testing
After UC20 module is connected with your PC, you can test the module in two ways: one is to send AT
commands via AT port or Modem port using serial debugging tools, the other is to create PPP connection
via Modem port with the wizard of Windows OS.
6.1. Test Module by Sending AT commands
You can use serial debugging tools to send AT commands via the ports of USB AT Port and USB Modem
of the UC20 module. You can confirm the port number of the two devices by checking the content of
Device Manager, which is shown in Figure 7.
The port number of the USB Modem is shown in its property window, as follows:
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Figure 8：Confirm the Serial Port Number-2
You can refer to the UC20_AT_Commands_Manual to retrieve the syntax information of AT commands.
6.2. Create PPP Connection via Modem Port
When UC20 module is connected with your PC, USB Modem will be shown in the Device Manager,
through which you can create a PPP connection. The detailed steps are described as follows:
6.2.1. Set Parameters for UC20 Module’s USB Modem
Right click the "USB modem" in Device Manager and click "Properties" in the popup menu, then select
the "Advanced" tab, and input AT+CGDCONT=1,"IP","UNINET" under "Extra initialization commands"
label ("UNINET" is the APN of China UNICOM, user should change it according to the operator), as
follows:
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Figure 9：Modem Setting
Click "OK" button to complete the Modem’s setting.
6.2.2. Setup a new Dial-up Connection via USB Modem
After setting the modem properties above, follow the instructions in the installation wizard to setup a
Dial-up Connection, after that, you can execute the operations of "Connect" or "Disconnect" on the
Dial-up Connection. The detailed steps in Windows 7 OS are listed as follows:
Open Control Panel of OS, and select "Network and Internet".
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Figure 10：Setup a Dial-up Connection-1
Click "Network and Sharing Center".
Figure 11：Setup a Dial-up Connection-2
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Click "Set up a new connection or network".
Figure 12：Setup a Dial-up Connection-3
Select "Connect to the Internet" and click "Next".
Figure 13：Setup a Dial-up Connection-4
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Click "Set up a new connection anyway".
Figure 14：Setup a Dial-up Connection-5
Click "Dial-up".
Figure 15：Setup a Dial-up Connection-6
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Input the Dial-up phone number "*99#" in the textbox, and the User name and Password can be omitted,
then click "Connect".
Figure 16：Setup a Dial-up Connection-7
Start the connecting process.
Figure 17：Setup a Dial-up Connection-8
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Figure 18：Setup a Dial-up Connection-9
Figure 19：Setup a Dial-up Connection-10
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6.2.3. Dial-up or Disconnect via the Dial-up Connection
After the Dial-up Connection is created, you can connect to or disconnect from the Internet through it at
any time. Open Control Panel and browse the path below, and click "Change adapter settings", you will
see the Dial-up Connection you have created before:
Figure 20：Use a created Dial-up Connection-1
Select the Dial-up Connection of the USB modem, and right-click on it, and click "Connect" on the popup
menu.
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Figure 21：Use a created Dial-up Connection-2
Click "Dial" in the popup window to connect the Internet.
Figure 22：Use a created Dial-up Connection-3
When you want to disconnect from the Internet, select the Dial-up Connection of the USB modem, and
right-click on it, and click "Disconnect" on the popup menu.
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