Quectel M.2 EVB User manual

M.2 EVB User Guide
LTE Module Series
Rev: M.2_EVB_User_Guide_V1.0
Date: 2018-07-13
Status: Released
www.quectel.com

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QUECTEL OFFERS THE INFORMATION AS A SERVICE TO ITS CUSTOMERS. THE INFORMATION
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MODEL OR DESIGN.
Copyright © Quectel Wireless Solutions Co., Ltd. 2018. All rights reserved.

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About the Document
History
Revision
Date
Author
Description
1.0
2018-07-13
Storm BAO/
Claude WEI
Initial

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Contents
About the Document.................................................................................................................................. 1
Contents...................................................................................................................................................... 3
Table Index.................................................................................................................................................. 4
Figure Index................................................................................................................................................ 5
1Introduction......................................................................................................................................... 6
1.1. Safety Information...................................................................................................................... 6
2General Overview................................................................................................................................ 8
2.1. Key Features.............................................................................................................................. 8
2.2. Interface Overview ..................................................................................................................... 9
2.3. Top and Bottom Views of M.2 EVB...........................................................................................11
2.4. EVB Kit Accessories ................................................................................................................ 12
3EVB Kit Accessories Assembly ...................................................................................................... 15
4Application Interfaces ...................................................................................................................... 16
4.1. Power Interface (J101/J701).................................................................................................... 16
4.2. M.2 Interface (J501)................................................................................................................. 17
4.3. USB Interface (J701) ............................................................................................................... 18
4.4. Audio Interfaces (J301/J302/J303) .......................................................................................... 19
4.4.1. Digital Audio Codec Board Interface (J301) ................................................................. 19
4.4.2. Earphone Interface (J302) ............................................................................................ 20
4.4.3. Handset Interface (J303) .............................................................................................. 22
4.5. (U)SIM Interfaces (J401/J402)................................................................................................. 23
4.6. Switches and Button ................................................................................................................ 25
4.7. Status Indication LEDs............................................................................................................. 25
4.8. Test Points................................................................................................................................ 26
5Operation Procedures Illustration................................................................................................... 32
5.1. Power on the Module ............................................................................................................... 32
5.2. Communication via USB Type-C Interface .............................................................................. 33
5.3. Firmware Upgrade ................................................................................................................... 33
5.4. Reset the Module..................................................................................................................... 34
5.5. Power off the Module ............................................................................................................... 35
5.6. Test Current Consumption ....................................................................................................... 35
6Appendix A References.................................................................................................................... 37

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Table Index
TABLE 1: KEY FEATURES OF M.2 EVB ............................................................................................................ 8
TABLE 2: INTERFACES OF M.2 EVB................................................................................................................. 9
TABLE 3: ACCESSORIES LIST ........................................................................................................................ 13
TABLE 4: PIN ASSIGNMENT OF J701 ............................................................................................................. 18
TABLE 5: PIN DEFINITION OF J302 ................................................................................................................ 21
TABLE 6: PIN DEFINITION OF J303 ................................................................................................................ 23
TABLE 7: PIN ASSIGNMENTS OF J401/J402.................................................................................................. 24
TABLE 8: DESCRIPTION OF THE SWITCHES AND BUTTON ....................................................................... 25
TABLE 9: DESCRIPTION OF STATUS INDICATORS ...................................................................................... 26
TABLE 10: PIN DEFINITION OF J502 .............................................................................................................. 27
TABLE 11: PIN DEFINITION OF J503 .............................................................................................................. 28
TABLE 12: PIN DEFINITION OF J504 .............................................................................................................. 29
TABLE 13: PIN DEFINITION OF J505 .............................................................................................................. 29
TABLE 14: PIN DEFINITION OF J202 .............................................................................................................. 30
TABLE 15: PIN DEFINITION OF J601 .............................................................................................................. 30
TABLE 16: PIN DEFINITION OF J602 .............................................................................................................. 31
TABLE 17: PIN DEFINITION OF J603 .............................................................................................................. 31
TABLE 18: PIN DEFINITION OF J604 .............................................................................................................. 31
TABLE 19: INDICATION OF D101, D102 AND D103........................................................................................ 32
TABLE 20: RELATED DOCUMENTS ................................................................................................................ 37
TABLE 21: TERMS AND ABBREVIATIONS ...................................................................................................... 37

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Figure Index
FIGURE 1: M.2 EVB INTERFACE OVERVIEW .................................................................................................. 9
FIGURE 2: M.2 EVB TOP VIEW ........................................................................................................................11
FIGURE 3: M.2 EVB BOTTOM VIEW ............................................................................................................... 12
FIGURE 4: M.2 EVB KIT ACCESSORIES ........................................................................................................ 13
FIGURE 5: M.2 EVB KIT ACCESSORIES ASSEMBLY .................................................................................... 15
FIGURE 6: POWER SUPPLY FOR M.2 EVB.................................................................................................... 16
FIGURE 7: POWER INTERFACE ..................................................................................................................... 17
FIGURE 8: POWER PLUG DESIGN................................................................................................................. 17
FIGURE 9: CONNECTION BETWEEN THE MODULE AND EVB.................................................................... 18
FIGURE 10: USB TYPE-C INTERFACE CIRCUIT ........................................................................................... 19
FIGURE 11: REFERENCE DESIGN FOR CONNECTION BETWEEN CODEC BOARD AND EVB................ 20
FIGURE 12: CONNECTION BETWEEN CODEC BOARD AND EVB .............................................................. 20
FIGURE 13: REFERENCE CIRCUIT DESIGN FOR EARPHONE INTERFACE J302 ..................................... 21
FIGURE 14: PIN ASSIGNMENT OF J302......................................................................................................... 21
FIGURE 15: SKETCH OF AUDIO PLUG .......................................................................................................... 22
FIGURE 16: REFERENCE CIRCUIT DESIGN FOR HANDSET INTERFACE J303 ........................................ 22
FIGURE 17: PIN ASSIGNMENT OF J303......................................................................................................... 23
FIGURE 18: PIN ASSIGNMENTS OF J401/J402 ............................................................................................. 24
FIGURE 19: SWITCHES AND BUTTON........................................................................................................... 25
FIGURE 20: STATUS INDICATORS ................................................................................................................. 26
FIGURE 21: TEST POINT J502 ........................................................................................................................ 27
FIGURE 22: TEST POINTS J503, J504 AND J505........................................................................................... 28
FIGURE 23: TEST POINTS J202, J601, J602, J603 AND J604....................................................................... 30
FIGURE 24: USB PORTS ................................................................................................................................. 33
FIGURE 25: COM PORT SETTING FIELD ON QCOM (USB AT PORT CONNECTION)................................ 33
FIGURE 26: CONFIGURATIONS FOR FIRMWARE UPGRADE ..................................................................... 34
FIGURE 27: LOCATION OF R607 .................................................................................................................... 35
FIGURE 28: LOCATION OF J603 AND J604.................................................................................................... 36

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1Introduction
This document describes how to use the M.2 EVB (Evaluation Board). It is an assistant tool for engineers
to develop and test Quectel EM05 and EM06 modules, which are designed in M.2 form factor.
1.1. Safety Information
The following safety precautions must be observed during all phases of operation, such as usage, service
or repair of any cellular terminal or mobile incorporating EM05 and EM06 modules. Manufacturers of the
cellular terminal should send the following safety information to users and operating personnel, and
incorporate these guidelines into allmanuals supplied with the product. If not so, Quectel assumes no liability
for customers’ failure to comply with these precautions.
Full attention must be given to driving at all times in order to reduce the risk of an
accident. Using a mobile while driving (even with a handsfree kit) causes distraction
and can lead to an accident. Please comply with laws and regulations restricting the
use of wireless devices while driving.
Switch off the cellular terminal or mobile before boarding an aircraft. The operation
of wireless appliances in an aircraft is forbidden to prevent interference with
communication systems. If the device offers an Airplane Mode, then it should be
enabled prior to boarding an aircraft. Please consult the airline staff for more
restrictions on the use of wireless devices on boarding the aircraft.
Wireless devices may cause interference on sensitive medical equipment, so
please be awareof the restrictions on the use of wireless devices when in hospitals,
clinics or other healthcare facilities.
Cellular terminals or mobiles operating over radio signals and cellular network
cannot be guaranteed to connect in all possible conditions (for example, with unpaid
bills or with an invalid (U)SIM card). When emergent help is needed in such
conditions, please remember using emergency call. In order to make or receive a
call, the cellular terminal or mobile must be switched on in a service area with
adequate cellular signal strength.

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The cellular terminal or mobile contains a transmitter and receiver. When it is ON,
it receives and transmits radio frequency signals. RF interference can occur if it is
used close to TV set, radio, computer or other electric equipment.
In locations with potentiallyexplosive atmospheres, obey all posted signs to turn off
wireless devices such as your phone or other cellular terminals. Areas with
potentiallyexplosive atmospheres include fuelling areas, below decks on boats, fuel
or chemical transfer or storage facilities, areas where the air contains chemicals or
particles such as grain, dust or metal powders, etc.

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2General Overview
Quectel supplies M.2 EVB for designers to develop applications based on Quectel EM05 and EM06
modules. The EVB can test all functionalities of these modules.
2.1. Key Features
The following table describes the detailed features of M.2 EVB.
Table 1: Key Features of M.2 EVB
Features
Implementation
Power Supply
DC power supply: 4.5V~5.5V, typically: 5.0V
VBAT: 3.7V
M.2 Interface
Standard PCI Express M.2 interface
USB Interfaces
USB Type-C
Support USB 2.0 & USB 3.0
Audio Interface
⚫One digital audio codec board interface
Support TI TLV320AIC3104 codec board
⚫Two analog interfaces used for earphone and handset
(U)SIM Interfaces
Support (U)SIM card: 3.0V and 1.8V
Include USIM1 and USIM2 interfaces
Support Dual SIM Single Standby*
Switches and Button
Switches: Power Switch (S101), PWRKEY (S103) and Switch between
EM05 and EM06 modules (S701)
Button: RESET (S102)
Signal Indication
3 LEDs are available for signal indication
Physical Characteristics
Size: 122.0mm ×100.0mm

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2.2. Interface Overview
EM05/EM06 Module
J701 S103 S102
USB Type-C
J801
J303
USIM2
Audio Interface
Power
Supply Power
Switch RESET
D103
WAKEUP_HOST
J302
D101
PWRKEY
S101
J501
D102
J101
J603
J301
USIM1
COM Port
1 5
6 9
S701
J802
WWAN_LEDPOWER J602 J601
J604
Reserved
J202
J502 J503
J505
J504 Codec Board
Interface
J401
J402
J201
Figure 1: M.2 EVB Interface Overview
Table 2: Interfaces of M.2 EVB
Interface
Reference No.
Description
Power Supply
J101 (bottom side)
The power jack on the EVB.
Typical supply voltage: +5V
J701
USB Type-C interface
Typical supply voltage: +5V
Power Switch
S101
Power ON/OFF control
PWRKEY
S103
Turn on/off the module
RESET
S102
Reset button (push button)
Used to reset the module
USB Type-C
J701
USB device interface
Can also be used to supply power for the EVB

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Audio
J302
Used for earphone
Used to test the analog audio function of the module
J303 (bottom side)
Used for handset
Used to test the analog audio function of the module
J301
Codec board interface
(U)SIM
J401 (bottom side)
(U)SIM card connector 1
J402 (bottom side)
(U)SIM card connector 2
(Not applicable to EM05 module)
COM Port
J201 (bottom side)
Debug UART port (only for internal debugging by Quectel)
Status Indication
LEDs
D101,
D102,
D103
D101 (Power ON/OFF indicator) is used to indicate power
ON/OFF status of the EVB
D102 is used to indicate whether RF is capable of
transmitting
D103 is used to indicate a URC reporting which could wake
up the module
M.2
J501
M.2 standard connector for the module
Switches
S701
Switch for controlling EM05 or EM06 module
Connectors
J501
J801, J802
J501 is M.2 module connector
J801 and J802 are reserved for future use
Test points
J202, J502-J505,
J601-J604
Test pins

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2.3. Top and Bottom Views of M.2 EVB
The top and bottom views of the M.2 EVB are shown as following figures.
Figure 2: M.2 EVB Top View

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Figure 3: M.2 EVB Bottom View
2.4. EVB Kit Accessories
All accessories of the M.2 EVB kit are listed as below.

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USB to RS-232 Converter
Cable
USB Type-C Cable
RF Cables
GNSS Antenna
Main Antennas
Earphone
USB Driver Disk
Bolts and Nuts
Codec Board
Instruction Sheet
USB to RS-232 Driver Disk
Figure 4: M.2 EVB Kit Accessories
Table 3: Accessories List
Items
Description
Quantity
Cables
USB type-C cable
1
USB to UART converter cable
1
RF cables
3
Antennas
Main antennas
2
GNSS antenna (passive)
1
Audio
Earphone
1
Disks
USB 2.0 to RS-232 driver and USB driver disk
2
Codec Board
TLV320AIC3104 codec board
1
Others
Bolts and coupling nuts for assembling EVB
4 for each type

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The main antenna can also be used for diversity reception.
Instruction Sheet
A sheet of paper giving instructions for EVB
connection, details of EVB accessories, etc.
1
NOTE

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3EVB Kit Accessories Assembly
The following figure shows the EVB kit accessories assembly.
Figure 5: M.2 EVB Kit Accessories Assembly

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4Application Interfaces
This chapter describes the hardware interfaces of M.2 EVB, shown as follows:
⚫Power interface
⚫M.2 interface
⚫USB interface
⚫Audio interfaces
⚫(U)SIM interface
It also provides information about button, switches, status indication LEDs and test points to help
customers use the M.2 EVB.
4.1. Power Interface (J101/J701)
The M.2 EVB can be powered by an external power adapter through connecting with the power jack (J101)
or USB receptacle (J701) on the EVB. The power adapter connects to a step-down converter which can
provide the supply voltage (VBAT) required for operating the EVB and the module.
The following two figures show the simplified power supply schematic and the power interface of the M.2
EVB.
J101
S101
Power supply
Power
switch
Step-down converter
U101 Power supply
for the module
1.8V
3.3V
U103
U102
USB Type-C interface
J701
VBAT
Figure 6: Power Supply for M.2 EVB

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5V DC power supply
Figure 7: Power Interface
Before connecting the power supply,customers have to select a proper DC power adapter to supply power
for the M.2 EVB, and the power plug design of the adapter is shown as below.
Inner contact
Outer contact
Figure 8: Power Plug Design
4.2. M.2 Interface (J501)
The M.2 interface is designed to accommodate the EM05 and EM06 modules. The module is connected
to the EVB via BTB connectors J501. The interface allows customers to easily test the functionalities of
EM05 and EM06 modules or develop applications based on the module.
The following figure shows the connection between the module and the EVB

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Figure 9: Connection between the Module and EVB
4.3. USB Interface (J701)
The USB interface of EM05 complies with USB 2.0 specification, and that of EM06 complies with USB 2.0
and USB 3.0 specifications. USB 3.0 supports super speed (5Gbps) mode, and USB 2.0 supports high
speed (480 Mbps) and full speed (12 Mbps) modes. The USB interface is used for AT command
communication, data transmission, GNSS NMEA output, software debugging, firmware upgrade and voice
over USB*1).
The M.2 EVB provides a USB Type-C interface J701 for connection with a host device. The USB data lines
D+ and D- are connected directly to the EM06 module. The CC1 and CC2 lines can be used for Type-C
configuration channel signals. The VBUS lines can be used for USB connection detection and EVB power
supply.
Table 4: Pin Assignment of J701
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
GND
TX1+
TX1-
VBUS
CC1
D+
D-
SBU1
VBUS
RX2-
RX2+
GND
GND
RX1+
RX1-
VBUS
SBU2
D-
D+
CC2
VBUS
TX2-
TX2+
GND
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1

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The following figure is a reference circuit design for the USB Type-C device interface.
USB_SS_TX_M
USB_SS_TX_P
USB_SS_RX_M
USB_SS_RX_P
USB_DP
USB_DM
HS3SS3220Module
R1 0R
R2 0R
C3 100nF
C2 100nF
C1 100nF
C4 100nF
C5 100nF
C6 100nF
C7 100nF
C8 100nF
TXN
TXP
RXN
RXP
USB_D+
USB_D-
CC1
CC2
RX2+
RX2-
TX2+
TX2-
RX1+
RX1-
TX1+
TX1-
CC1
CC2
RX2+
RX2-
TX2+
TX2-
RX1+
RX1-
TX1+
TX1-
USB Type-C
U301 U701
ESD
Figure 10: USB Type-C Interface Circuit
1. “*” means under development.
2. 1) The USB interface of EM05 does not support voice over USB function.
4.4. Audio Interfaces (J301/J302/J303)
Quectel M.2 EVB provides one digital audio codec board interface (PCM) J301 and two analog audio
interfaces J302 and J303. This chapter gives a detailed introduction on these audio interfaces.
4.4.1. Digital Audio Codec Board Interface (J301)
The M.2 EVB supports the external digital audio codec of TLV320AIC3104.The codec circuit is assembled
on an independent small board which can be interconnected with EVB by the BTB connector J301.
The following figures show a reference design for the connection between digital audio codec board and
the EVB.
NOTE