Quectel LTE-A Series Supplement

EM120R-GL&EM160R-GL
Hardware Design
LTE-A Module Series
Rev. EM120R-GL&EM160R-GL_Hardware_Design_V1.0
Date: 2020-07-02
Status: Preliminary
www.quectel.com

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About the Document
Revision History
Version
Date
Author
Description
1.0
2020-07-02
Jim HAN/
Charls SHENG
Initial

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Contents
About the Document...................................................................................................................................2
Contents.......................................................................................................................................................3
Table Index...................................................................................................................................................5
Figure Index.................................................................................................................................................7
1Introduction..........................................................................................................................................9
1.1. Safety Information.....................................................................................................................10
2Product Concept................................................................................................................................11
2.1. General Description ..................................................................................................................11
2.2. Key Features.............................................................................................................................12
2.3. Functional Diagram...................................................................................................................14
2.4. Evaluation Board.......................................................................................................................15
3Application Interfaces........................................................................................................................16
3.1. PinAssignment .........................................................................................................................17
3.2. Pin Description..........................................................................................................................18
3.3. Power Supply............................................................................................................................23
3.3.1. Decrease Voltage Drop..................................................................................................23
3.3.2. Reference Design for Power Supply..............................................................................24
3.4. Turn-on and Turn-off Scenarios................................................................................................25
3.4.1. Turn on the Module........................................................................................................25
3.4.1.1. Turn on the Module with a Host GPIO................................................................25
3.4.1.2. Turn on the ModuleAutomatically.......................................................................26
3.4.1.3. Turn on the Module with Compatible Design......................................................26
3.4.2. Turn off the Module........................................................................................................28
3.4.2.1. Turn off the Module through FULL_CARD_POWER_OFF#...............................28
3.4.2.2. Turn off the Module throughAT Command.........................................................28
3.5. Reset.........................................................................................................................................30
3.6. (U)SIM Interfaces......................................................................................................................32
3.7. USB Interface............................................................................................................................37
3.8. PCIe Interface...........................................................................................................................39
3.8.1. Endpoint Mode...............................................................................................................40
3.8.2. USB Version and PCIe Only Version.............................................................................42
3.9. PCM Interface*..........................................................................................................................43
3.10. Control and Indicator Signals* ..................................................................................................45
3.10.1. W_DISABLE1# Signal....................................................................................................45
3.10.2. W_DISABLE2# Signal....................................................................................................46
3.10.3. WWAN_LED# Signal......................................................................................................47
3.10.4. WAKE_ON_WAN# Signal..............................................................................................48
3.10.5. DPR................................................................................................................................49
3.10.6. ANT_CONFIG Signal.....................................................................................................50
3.11. COEX UART Interface*.............................................................................................................50

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3.12. Antenna Tuner Control Interfaces*............................................................................................51
3.12.1. Antenna Tuner Control Interface through GPIOs..........................................................51
3.12.2. Antenna Tuner Control Interface through RFFE............................................................51
3.13. Configuration Pins.....................................................................................................................52
3.13.1. EM160R-GLconfiguration pins......................................................................................52
3.13.2. EM120R-GLconfiguration pins......................................................................................53
4GNSS Receiver...................................................................................................................................55
4.1. General Description ..................................................................................................................55
5Antenna Connection..........................................................................................................................56
5.1. Antenna Connectors.................................................................................................................56
5.1.1. Operating Frequency.....................................................................................................57
5.2. GNSSAntenna Connector........................................................................................................59
5.3. Antenna Installation...................................................................................................................60
5.3.1. Antenna Requirements..................................................................................................60
5.3.2. Recommended RF ConnectorforAntenna Installation .................................................62
6Electrical, Reliability and Radio Characteristics............................................................................64
6.1. Absolute Maximum Ratings......................................................................................................64
6.2. Power Supply Requirements....................................................................................................64
6.3. I/O Requirements......................................................................................................................65
6.4. Operation and Storage Temperatures.......................................................................................65
6.5. Current Consumption................................................................................................................66
6.6. RF Output Power......................................................................................................................66
6.7. RF Receiving Sensitivity...........................................................................................................67
6.8. Characteristics...........................................................................................................................68
6.9. Thermal Dissipation ..................................................................................................................69
7Mechanical Dimensions and Packaging..........................................................................................71
7.1. Mechanical Dimensions of the Module.....................................................................................71
7.2. Standard Dimensions of M.2 PCI Express...............................................................................72
7.3. Design Effect Drawings of the Module......................................................................................73
7.3.1. Design Effect Drawings of EM160R-GLModule............................................................73
7.3.2. Design Renderings of EM120R-GL Module..................................................................74
7.4. M.2 Connector...........................................................................................................................75
7.5. Packaging..................................................................................................................................75
8Appendix References........................................................................................................................77

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Table Index
Table 1: Frequency Bands and GNSS Types of EM120R-GL&EM160R-GL.............................................11
Table 2: Definition of I/O Parameters.........................................................................................................18
Table 3: Pin Description..............................................................................................................................18
Table 4: Pin Definition of VCC and GND....................................................................................................23
Table 5: Pin Definition of FULL_CARD_POWER_OFF#........................................................................... 25
Table 6: Description of Turn-on Timing of the Module...............................................................................27
Table 7: Description of the Timing of Resetting the Module througn FULL_CARD_POWER_OFF#........ 28
Table 8: Pin Definition of RESET#.............................................................................................................30
Table 9: Timing of Resetting the Module....................................................................................................32
Table 10: Pin Definition of (U)SIM Interfaces.............................................................................................33
Table 11: Pin Definition of USB Interface...................................................................................................37
Table 12: Pin Definition of PCIe Interface..................................................................................................39
Table 13: Description of PCIe Power-on Timing Requirements of the Module .........................................42
Table 14: Pin Definition of PCM Interface..................................................................................................44
Table 15: Definition of Control and Indicator Signals.................................................................................45
Table 16: RF Function Status..................................................................................................................... 46
Table 17: GNSS Function Status...............................................................................................................46
Table 18: RF Status Indications of WWAN_LED# Signal..........................................................................48
Table 19: State of the WAKE_ON_WAN# Signal.......................................................................................48
Table 20: Function of the DPR Signal........................................................................................................49
Table 21: Pin Definition of ANT_COMNFIG of EM160R-GL......................................................................50
Table 22: Pin Definition of COEXUART Interface.....................................................................................50
Table 23: Pin Definition of Antenna Tuner Control Interface through GPIOs.............................................51
Table 24: Pin Definition of Antenna Tuner Control Interface through RFFE..............................................51
Table 25: List of EM160R-GLConfiguration Pins......................................................................................52
Table 26: List of EM160R-GLConfiguration Pins......................................................................................53
Table 27: List of EM120R-GLConfiguration Pins......................................................................................53
Table 28: List of EM120R-GLConfiguration Pins......................................................................................54
Table 29: Operating Frequencies of EM120R-GL&EM160R-GL...............................................................57
Table 30: GNSS Frequency........................................................................................................................59
Table 31: Antenna Requirements of EM160R-GL......................................................................................60
Table 32: Antenna Requirements of EM120R-GL......................................................................................61
Table 33: Major Specificationsof the RFConnector..................................................................................62
Table 34: Absolute Maximum Ratings........................................................................................................64
Table 35: Power Supply Requirements......................................................................................................64
Table 36: I/O Requirements........................................................................................................................65
Table 37: Operation and Storage Temperatures........................................................................................65
Table 38: EM120R-GL&EM160R-GLCurrent Consumption......................................................................66
Table 39: RF Output Power........................................................................................................................66
Table 40: EM120R-GL&EM160R-GLConducted RFMin. Receiving Sensitivity......................................67
Table 41: Electrostatic Discharge Characteristics (Temperature: 25 ºC,Humidity: 40%)......................... 69

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Table 42: Related Documents....................................................................................................................77
Table 43: Terms andAbbreviations............................................................................................................77

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Figure Index
Figure 1: Functional Diagram.....................................................................................................................14
Figure 2: PinAssignment...........................................................................................................................17
Figure 3: Power Supply Limits during Radio Transmission .......................................................................23
Figure 4: ReferenceCircuit of VCC............................................................................................................24
Figure 5: ReferenceDesign of Power Supply............................................................................................24
Figure 6: Turn on the Module with a Host GPIO........................................................................................25
Figure 7: Turn on the ModuleAutomatically...............................................................................................26
Figure 8: Turn on the Module with Compatible Design.............................................................................. 26
Figure 9: Turn-on Timing of the Module.....................................................................................................27
Figure 10: Timing of Turning off theModule through FULL_CARD_POWER_OFF#................................ 28
Figure 11: Timing of Turning off the Module throughAT Command and FULL_CARD_POWER_OFF#..29
Figure 12: Timing of Turning off theModule throughAT Command and Power Supply............................29
Figure 13: Reference Circuit of RESET_Nwith NPNDriving Circuit.........................................................30
Figure 14: Reference Circuit of RESET_Nwith NMOS Driving Circuit.....................................................31
Figure 15: Reference Circuit of RESET_Nwith Button .............................................................................31
Figure 16: Timing of Resetting the Module................................................................................................32
Figure 17: Reference Circuit of Normally Closed (U)SIM1Card Connector.............................................34
Figure 18: Reference Circuit of Normally Open (U)SIM1 CardConnector................................................34
Figure 19: Reference Circuit of a 6-Pin (U)SIM1 CardConnector............................................................35
Figure 20: Recommended Compatible Design of (U)SIM2 Interface........................................................36
Figure 21: Reference Circuit of USB 3.0/2.0 Interface.............................................................................. 38
Figure 22: PCIe InterfaceReference Circuit (EPMode)............................................................................40
Figure 23: PCIe Power-on Timing Requirements of M.2 Specification.....................................................41
Figure 24: PCIe Power-on Timing Requirementsof theModule...............................................................41
Figure 25: Primary Mode Timing................................................................................................................43
Figure 26:Auxiliary Mode Timing...............................................................................................................44
Figure 27: W_DISABLE1# and W_DISABLE2# ReferenceCircuit...........................................................47
Figure 28: WWAN_LED# Signal Reference Circuit...................................................................................47
Figure 29: WAKE_ON_WAN# Signal ReferenceCircuit Design...............................................................49
Figure 30: Recommended Circuit of EM160R-GLConfiguration Pins......................................................52
Figure 31: Recommended Circuit of EM120R-GLConfiguration Pins......................................................53
Figure 32:Antenna Connectors on the EM160R-GLModule....................................................................56
Figure 33:Antenna Connectors on the EM120R-GLModule.................................................................... 57
Figure 34: EM120R-GL&EM160R-GLRF ConnectorDimensions (Unit: mm)..........................................62
Figure 35: Specificationsof Mating Plugs Using Ø0.81 mm Coaxial Cables............................................63
Figure 36: Connection between RF Connector and Mating Plug Using Ø0.81 mm Coaxial Cable.......... 63
Figure 37: Connection between RF Connector and Mating Plug Using Ø1.13 mm Coaxial Cable.......... 63
Figure 38: Thermal Dissipation Area on Bottom Side of Module (Top View)............................................. 69
Figure 39: Mechanical Dimensions of EM120R-GL&EM160R-GL(Unit:mm)..........................................71
Figure 40: Standard Dimensions of M.2 Type 3042-S3 (Unit:mm)........................................................... 72
Figure 41: M.2 Nomenclature.....................................................................................................................72

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Figure 42: Top View of the Module.............................................................................................................73
Figure 43: Bottom View of the Module.......................................................................................................73
Figure 44: Top View of the Module.............................................................................................................74
Figure 45: Bottom View of the Module.......................................................................................................74
Figure 46: Tray Size (Unit: mm).................................................................................................................75
Figure 47: Tray Packaging Procedure.......................................................................................................76

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1Introduction
This document defines EM120R-GL&EM160R-GL and describes its air interfaces and hardware
interfaceswhich are connectedto customers’ applications.
This document is applicable to the followingmodules:
⚫EM120R-GL
⚫EM160R-GL
This document can help customers quickly understand the interface specifications, electrical and
mechanical details, as well as other related information of EM120R-GL&EM160R-GL. To facilitate its
application in different fields, reference design is also provided for customers’ reference. This document,
coupled with application notes and user guides, can help customersuse the module to design and set up
mobile applications easily.

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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 EM120R-GL&EM160R-GL modules.
Manufacturers of the cellular terminal should notify usersand operating personnel of the following safety
information by incorporating these guidelines into all manuals of the product. Otherwise, Quectel
assumes no liability for customers’ failure to comply with these precautions.
Full attention must be paid 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 there is an Airplane Mode, it should be enabled prior to
boarding an aircraft. Please consult the airline staff formore restrictions on the use
of wireless deviceson an aircraft.
Wireless devices may cause interference on sensitive medical equipment, so
please be aware of the restrictions on the use of wireless devices when in
hospitals, clinicsor 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 isneeded in such
conditions, use 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.
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, computeror other electric equipment.
In locations with potentially explosive atmospheres, obey all posted signs to turn
off wireless devices such as mobile phone or other cellular terminals. Areas with
potentially explosive atmospheres include fueling areas, below decks on boats,
fuel or chemical transfer or storage facilities, areas where the air contains
chemicalsor particles such as grain, dust or metalpowders.

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2Product Concept
2.1. General Description
EM120R-GL&EM160R-GL are LTE-A/UMTS/HSPA+ wireless communication modules with receive
diversity. It provides data connectivity on LTE-FDD, LTE-TDD, DC-HSDPA, HSPA+, HSDPA, HSUPA
and WCDMAnetworkswith standard PCI ExpressM.2 interface.
It supports embedded operating systems such as Windows, Linux and Android, and provides GNSS 1)
and voicefunctionality 2) to meet customers’ specific application demands.
The following table shows the frequency bands and GNSStypesof EM120R-GL&EM160R-GL.
Table1: Frequency Bands and GNSS Typesof EM120R-GL&EM160R-GL
Mode
EM120R-GL&EM160R-GL
LTE-FDD
(with Rx-diversity/MIMO 5))
B1 4)/B24)/B3 4)/B4 4)/B5/B74)/
B8/B12/B13/B14/B17/B18/B19/B20/B25 4)/B26/B28/
B29 3)/B30 4)/B323) 4)/B664)
LTE-TDD
(with Rx-diversity/MIMO 5))
B38 4)/B39 4)/B404)/B41 4)/B42/B43/B46 3)/B48
WCDMA
(with Rx-diversity)
B1/B2/B3/B4/B5/B6/B8/B19
GNSS1)
GPS;
GLONASS;
BeiDou/Compass;
Galileo
1. 1)GNSSfunctionis optional.
2. 2)EM120R-GL&EM160R-GLcontainTelematicsversion and Data-only version. Telematics
version supports voiceand data functions,while Data-onlyversion only supports data function.
3. 3) LTE-FDD B29/B32 and LTE-TDD B46 support Rx only and are only for secondary component
NOTES

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EM120R-GL&EM160R-GLcanbeapplied in the following fields:
⚫Tablet PCand Laptop
⚫RemoteMonitor System
⚫Vehicle System
⚫Wireless POS System
⚫SmartMetering System
⚫Wireless Router and Switch
⚫Other Wireless Terminal Devices
2.2. Key Features
The following table describes the detailed featuresof EM120R-GL&EM160R-GL.
Table2: Key Features of EM120R-GL&EM160R-GL
carrier.
4. 4)EM160R-GLsupports up to 4 ×4 MIMO in DLdirection.
5. 5)MIMO antennas only apply forEM160R-GL.
6. For details about CAcombinations, referto document [1].
Feature
Details
Function Interface
PCIExpress M.2Interface
PowerSupply
Supply voltage: 3.135–4.4 V
Typicalsupply voltage: 3.7 V
Transmitting Power
Class 3 (23 dBm ±2 dB) forLTE-FDD bands
Class 3 (23 dBm ±2 dB) forLTE-TDD bands
Class 3 (24 dBm +1/-3 dB)forWCDMA
LTE Features
EM160R-GL
Support up to LTECat 16
Support 1.4–100 MHz(5×CA)RF bandwidth
Support 4 ×4 MIMO inDLdirection
Up to 1000 Mbps (DL)/150 Mbps (UL)
EM120R-GL
Support up to LTECat 12
Support 1.4–60 MHz(3×CA)RF bandwidth
Support 2 ×2 MIMO inDLdirection
Up to 600 Mbps(DL)/150 Mbps(UL)

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UMTSFeatures
Support 3GPP R9 DC-HSDPA,HSPA+,HSDPA,HSUPAandWCDMA
Support QPSK, 16QAM and 64QAM modulation
⚫DC-HSDPA: Max 42Mbps(DL)
⚫HSUPA: Max 5.76Mbps (UL)
⚫WCDMA:Max 384Kbps (DL)/384 Kbps (UL)
Internet Protocol Features
⚫Support PPP/QMI/NTP*/TCP*/UDP*/FTP*/HTTP*/PING*/HTTPS*/
SMTP*/MMS*/FTPS*/SMTPS*/SSL* protocols
⚫Support the protocols PAP (Password Authentication Protocol) and
CHAP (Challenge Handshake Authentication Protocol) usually used
forPPPconnections
SMS
Textand PDU mode
Point to point MO and MT
SMScell broadcast
SMSstorage: MEby default
(U)SIM Interfaces
Support (U)SIM card: 1.8/3.0 V
Support Dual SIM Single Standby*
USBInterface
⚫Compliant with USB 3.0 and 2.0 specifications, with maximum
transmission rates up to 5 Gbps on USB 3.0 and 480 Mbps on USB
2.0.
⚫Used for AT command communication, data transmission, firmware
upgrade, software debugging, GNSS NMEA sentences output and
voiceover USB*
⚫Support USB serial drivers for:
Windows: 7/8/8.1/10
Linux: 2.6/3.x/4.1–4.15
Android: 4.x/5.x/6.x/7.x/8.x/9.x
PCIex1Interface
Comply with PCI Express Specification,Revision 2.1 and support 5 Gbps
per lane
Used forAT commandcommunication,datatransmission, firmware
upgrade, softwaredebugging, GNSSNMEAsentencesoutput
Antenna connectors
EM160R-GL
Provide Main,Rx-diversity/GNSS, MIMO1 and MIMO2 antenna connectors
EM120R-GL
ProvideMain and Rx-diversity/GNSS antennaconnectors
Rx-diversity
Support LTE/WCDMARx-diversity
GNSSFeatures
Gen9 Lite of Qualcomm
Protocol: NMEA-0183
AT Commands
Compliant with 3GPP TS 27.007, 27.005 and Quectel enhanced AT
commands
PhysicalCharacteristics
Size: 42.0 ±0.15 mm×30.0 ±0.15 mm ×2.3 ±0.1 mm
Weight: approx. 6 g
Temperature Range
Operation temperature range: -25 °C to +75 °C 1)

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2.3. Functional Diagram
The following figureshows a block diagram of EM120R-GL&EM160R-GL.
Baseband
PMIC
Transceiver
ANT_MAIN
ANT_DIV/GNSS
ET
VCC
RESET#
38.4M
XO
Control
IQ
Control
Tx
PRx
DRx
PCI Express M.2 Key-B Interface
FULL_CARD_POWER_OFF#
W_DISABLE1#
USB2.0&USB3.0
(U)SIM1&(U)SIM2
WWAN_LED#
WAKE_ON_WAN#
NAND Flash +
DDR4 SDRAM
RFFE
W_DISABLE2#
GPIOs
Tx/Rx Blocks
PCIe
PCM
MIMO1
MIMO2
MIMO1
MIMO2
Figure 1: FunctionalDiagram
Extended temperaturerange: -40 °C to +85 °C 2)
Storage temperature range: -40 °C to +90 °C
FirmwareUpgrade
USB 2.0 interface,PCIe interfaceand DFOTA
RoHS
All hardware components are fully compliantwith EU RoHSdirective
1. 1) Within operating temperature range, the module is 3GPP compliant. For those end deviceswith
bad thermal dissipation condition, a thermal pad or other thermal conductive components may be
required between the module and main PCBto achieve the full operating temperature range.
2. 2) Within extended temperature range, the module remains the ability to establish and maintain a
voice, SMS, data transmission, emergency call, etc. There is no unrecoverable malfunction. There
are also no effects on radio spectrum and no harm to radio network. Only one or more parameters
like Pout might reduce in their values and exceed the specified tolerances. When the temperature
returns to normaloperating temperature level, the module will meet 3GPP specificationsagain.
3. “*” means under development.
NOTES

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2.4. Evaluation Board
To help customers develop applications conveniently with EM120R-GL&EM160R-GL, Quectel supplies
the evaluation board (M.2 EVB), USB to RS-232 converter cable, USB type-C cable, earphone, antenna
and other peripherals to control or test the module. For moredetails, referto document [2].
MIMO1andMIMO2antennas are only applicable to the EM160R-GLmodule.
NOTE

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3Application Interfaces
The physical connections and signal levels of EM120R-GL&EM160R-GL comply with PCI Express M.2
specifications. This chapter mainly describes the definition and application of the following
interfaces/signals/pins of EM120R-GL&EM160R-GL:
⚫Powersupply
⚫(U)SIM interfaces
⚫USBinterface
⚫PCM interface*
⚫PCIeinterface
⚫Control and indicator signals*
⚫Antenna tuner controlinterfaces*
⚫Configuration pins
⚫COEXUART Interface*
“*” means under development.
NOTE

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3.1. Pin Assignment
The following figure shows the pin assignment of EM120R-GL&EM160R-GL. The top side contains
EM120R-GL&EM160R-GLandantenna connectors.
PIN2
PIN74
BOT
PIN1
PIN75
TOP
Pin Name No.
CONFIG_2 75
GND 73
GND 71
CONFIG_1 69
RESET# 67
ANTCTL3 65
ANTCTL2 63
ANTCTL1 61
ANTCTL0 59
GND 57
PCIE_REFCLK_P 55
PCIE_REFCLK_M 53
GND 51
PCIE_RX_P 49
PCIE_RX_M 47
GND 45
PCIE_TX_P 43
PCIE_TX_M 41
GND 39
USB_SS_RX_P 37
USB_SS_RX_M 35
GND 33
USB_SS_TX_P 31
USB_SS_TX_M 29
GND 27
DPR 25
WAKE_ON_WAN# 23
CONFIG_0 21
Notch
Notch
Notch
Notch
GND 11
USB_DM 9
USB_DP 7
GND 5
GND 3
CONFIG_3 1
PIN11
PIN10
No. Pin Name
74 VCC
72 VCC
70 VCC
68 ANT_CONFIG
66 USIM1_DET
64 COEX_TXD
62 COEX_RXD
60 COEX3
58 RFFE_DATA
56 RFFE_CLK
54 PCIE_WAKE_N
52 PCIE_CLKREQ_N
50 PCIE_RST_N
48 USIM2_VDD
46 USIM2_RST
44 USIM2_CLK
42 USIM2_DATA
40 USIM2_DET
38 NC
36 USIM1_VDD
34 USIM1_DATA
32 USIM1_CLK
30 USIM1_RST
28 PCM_SYNC
26 W_DISABLE2#
24 PCM_DOUT/VDDIO
22 PCM_DIN
20 PCM_CLK
Notch
Notch
Notch
Notch
10 WWAN_LED#
8 W_DISABLE1#
6
FULL_CARD_POWER_OFF#
4 VCC
2 VCC
Figure 2: PinAssignment

LTE-A Module Series
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EM120R-GL&EM160R-GL_Hardware_Design 18 / 79
3.2. Pin Description
The following tables show the pin definition and description of EM120R-GL&EM160R-GL.
Table2: Definitionof I/O Parameters
Table3: Pin Description
Type
Description
AI
Analog Input
AO
Analog Output
DI
Digital Input
DO
Digital Output
IO
Bidirectional
OD
Open Drain
PI
PowerInput
PO
PowerOutput
Pin
No.
M.2Socket 2
WWAN Module
Pinout
EM120R-GL&EM1
60R-GL
Pin Name
I/O
Description
Comment
1
CONFIG_3
CONFIG_3
NC
2
3.3V
VCC
PI
Powersupply
Vmin= 3.135 V
Vnorm = 3.7 V
Vmax = 4.4 V
3
GND
GND
Ground
4
3.3V
VCC
PI
Powersupply
Vmin= 3.135 V
Vnorm = 3.7 V
Vmax = 4.4 V
5
GND
GND
Ground
6
FULL_CARD_
POWER_OFF#(I)
(0/1.8V)
FULL_CARD_
POWER_OFF#
DI
Turn on/off the module.
When it is at low level,
the module is powered
Pulled down
internally.

LTE-A Module Series
EM120R-GL&EM160R-GL Hardware Design
EM120R-GL&EM160R-GL_Hardware_Design 19 / 79
off.
When it is at high level,
the module is powered
on.
7
USB_D+
USB_DP
AI/AO
USB2.0 differentialdata
bus (+)
8
W_DISABLE1#
W_DISABLE1#
DI
Airplane modecontrol.
Activelow.
1.8/3.3 Vpower
domain
9
USB_D-
USB_DM
AI/AO
USB2.0 differentialdata
bus (-)
10
GPIO_9
WWAN_LED#
OD
RFstatus indication.
Activelow.
11
GND
GND
Ground
12
Key
Notch
Notch
13
Key
Notch
Notch
14
Key
Notch
Notch
15
Key
Notch
Notch
16
Key
Notch
Notch
17
Key
Notch
Notch
18
Key
Notch
Notch
19
Key
Notch
Notch
20
GPIO_5
(AUDIO_0)
PCM_CLK
DI
PCM data bit clock.
In master mode,it is an
output signal.
In slave mode, it is an
input signal.
1.8 V power
domain.
If unused, keep it
open.
21
CONFIG_0
CONFIG_0
EM120R-GL:Connected
to GND internally;
EM160R-GL:NC
22
GPIO_6
(AUDIO_1)
PCM_DIN
PO
PCM data input
1.8 V power
domain
23
GPIO_11
(WOWWAN#)
WAKE_ON_
WAN#
OD
Wake up the host.
Activelow.
1.8/3.3 Vpower
domain
24
GPIO_7
(AUDIO_2)
PCM_DOUT
/VDDIO
DO/P
O
PCM data output;
Could be designed to be
compatible with 1.8 V
power supply.
1.8 V power
domain