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User manual
Project Name: M14Q2SG
Author: Wistron NeWeb Corporation
Revision: 1.0
Revision Date: 2019/02/21
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Contact Information
Sale and Technical Support
SupportIoT.MBA@wnc.com.tw
Website
www.wnc.com.tw
Rev. #
Author
Summary of Changes
Date
1.0
WNC MBU
Draft release
2019/2/21
Revision History
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© Wistron NeWeb Corporation
THIS DOCUMENT AND THE INFORMATION CONTAINED HEREIN IS PROPRIETARY AND IS THE EXCLUSIVE
PROPERTY OF WNC AND SHALL NOT BE DISTRIBUTED, REPRODUCED, OR DISCLOSED IN WHOLE OR IN
PART WITHOUT PRIOR WRITTEN PERMISSION FROM WNC.
LIMITATION OF LIABILITY
THIS DOCUMENT AND THE INFORMATION CONTAINED HEREIN IS PURELY FOR DESIGN REFERENCE AND
SUBJECT TO REVISION BY WNC AT ANY TIME. NOTHING IN THIS DOCUMENT SHALL BE CONSTRUED AS
GRANTING ANY WARRANTY OR RIGHT TO USE THE MATERIAL CONTAINED HEREIN WITHOUT WNC’S
PRIOR EXPRESS WRITTEN CONSENT. WNC SHALL NOT BE LIABLE FOR ANY USE, APPLICATION OR
DEVELOPMENT DERIVED FROM THE MATERIAL WITHOUT SUCH PRIOR EXPRESS WRITTEN CONSENT.
FEDERAL COMMUNICATION COMMISSION INTERFERENCE STATEMENT
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that
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to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
FCC Caution:
Any changes or modifications not expressly approved by the party responsible for compliance could
void the user's authority to operate this equipment.
This transmitter must not be co-located or operating in conjunction with any other antenna or
transmitter.
Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance 20cm
between the radiator & your body.
This device is intended only for OEM integrators under the following conditions:
1) The antenna must be installed such that 20 cm is maintained between the antenna and users,
and
2) The transmitter module may not be co-located with any other transmitter or antenna.
As long as 2 conditions above are met, further transmitter test will not be required. However, the
OEM integrator is still responsible for testing their end-product for any additional compliance
requirements required with this module installed
IMPORTANT NOTE: In the event that these conditions can not be met (for example certain laptop
configurations or co-location with another transmitter), then the FCC authorization is no longer
considered valid and the FCC ID can not be used on the final product. In these circumstances, the
OEM integrator will be responsible for re-evaluating the end product (including the transmitter)
and obtaining a separate FCC authorization.
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End Product Labeling
This transmitter module is authorized only for use in device where the antenna may be installed
such that 20 cm may be maintained between the antenna and users. The final end product must
be labeled in a visible area with the following: “Contains FCC ID: NKRM14Q2SG”. The grantee's
FCC ID can be used only when all FCC compliance requirements are met.
Manual Information To the End User
The OEM integrator has to be aware not to provide information to the end user regarding how to
install or remove this RF module in the user’s manual of the end product which integrates this
module.
The end user manual shall include all required regulatory information/warning as show in this
manual.
INDUSTRY CANADA STATEMENT
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to
the following two conditions:
1) this device may not cause interference, and
2) this device must accept any interference, including interference that may cause undesired
operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio
exempts de licence. L'exploitation est autorisée aux deux conditions suivantes:
1) l'appareil ne doit pas produire de brouillage, et
2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d'en compromettre le fonctionnement.
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CAN ICES-3(B)/ NMB-3(B)
List of antenna information
Components
Frequency (MHz)
Antenna type
Brand
Antenna gain (dBi)
WWAN
700 ~ 960
Dipole
Cortec
-3.5
1710 ~2700
0.6
This device and its antenna(s) must not be co-located or operating in conjunction with any other
antenna or transmitter, except tested built-in radios.
Cet appareil et son antenne ne doivent pas être situés ou fonctionner en conjonction avec une
autre antenne ou un autre émetteur, exception faites des radios intégrées qui ont été testées.
The County Code Selection feature is disabled for products marketed in the US/ Canada.
La fonction de sélection de l'indicatif du pays est désactivée pour les produits commercialisés aux
États-Unis et au Canada.
This radio transmitter (IC ID : 4441A-M14Q2SG/model: M14Q2SG) has been approved by Industry
Canada to operate with the antenna types listed below with the maximum permissible gain indicated.
Antenna types not included in this list, having a gain greater than the maximum gain indicated for that
type, are strictly prohibited for use with this device.
Cet émetteur radio (IC ID : 4441A-M14Q2SG/model: M14Q2SG) a été approuvé par l'industrie
Canada pour fonctionner avec les types d'antenne énumérés ci-dessous avec le gain maximum
admissible indiqué. Types d'antennes non inclus dans cette liste, ayant un gain supérieur au gain
maximum indiqué pour cette type, sont strictement interdits pour une utilisation avec cet appareil.
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Radiation Exposure Statement:
This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment.
This equipment should be installed and operated with minimum distance 20cm between the radiator &
your body.
Déclaration d'exposition aux radiations:
Cet équipement est conforme aux limites d'exposition aux rayonnements IC établies pour un
environnement non contrôlé. Cet équipement doit être installé et utilisé avec un minimum de 20 cm de
distance entre la source de rayonnement et votre corps.
This device is intended only for OEM integrators under the following conditions: (For module device use)
1) The antenna must be installed such that 20 cm is maintained between the antenna and users, and
2) The transmitter module may not be co-located with any other transmitter or antenna.
As long as 2 conditions above are met, further transmitter test will not be required. However, the OEM
integrator is still responsible for testing their end-product for any additional compliance requirements
required with this module installed.
Cet appareil est conçu uniquement pour les intégrateurs OEM dans les conditions suivantes: (Pour utilisation de
dispositif module)
1) L'antenne doit être installée de telle sorte qu'une distance de 20 cm est respectée entre l'antenne et
les utilisateurs, et
2) Le module émetteur peut ne pas être coïmplanté avec un autre émetteur ou antenne.
Tant que les 2 conditions ci-dessus sont remplies, des essais supplémentaires sur l'émetteur ne seront
pas nécessaires. Toutefois, l'intégrateur OEM est toujours responsable des essais sur son produit final
pour toutes exigences de conformité supplémentaires requis pour ce module installé.
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IMPORTANT NOTE:
In the event that these conditions can not be met (for example certain laptop configurations or
co-location with another transmitter), then the Canada authorization is no longer considered valid and
the IC ID can not be used on the final product. In these circumstances, the OEM integrator will be
responsible for re-evaluating the end product (including the transmitter) and obtaining a separate
Canada authorization.
NOTE IMPORTANTE:
Dans le cas où ces conditions ne peuvent être satisfaites (par exemple pour certaines configurations
d'ordinateur portable ou de certaines co-localisation avec un autre émetteur), l'autorisation du Canada
n'est plus considéré comme valide et l'ID IC ne peut pas être utilisé sur le produit final. Dans ces
circonstances, l'intégrateur OEM sera chargé de réévaluer le produit final (y compris l'émetteur) et
l'obtention d'une autorisation distincte au Canada.
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End Product Labeling FOR MOBILE DEVICE USAGE (>20cm/low power)
This transmitter module is authorized only for use in device where the antenna may be installed such
that 20 cm may be maintained between the antenna and users. The final end product must be labeled in
a visible area with the following: “Contains IC: 4441A-M14Q2SG”.
Plaque signalétique du produit final
Ce module émetteur est autorisé uniquement pour une utilisation dans un dispositif où l'antenne peut
être installée de telle sorte qu'une distance de 20cm peut être maintenue entre l'antenne et les
utilisateurs. Le produit final doit être étiqueté dans un endroit visible avec l'inscription suivante:
"Contient des IC: 4441A-M14Q2SG ".
Manual Information To the End User
The OEM integrator has to be aware not to provide information to the end user regarding how to install
or remove this RF module in the user’s manual of the end product which integrates this module.
The end user manual shall include all required regulatory information/warning as show in this manual.
Manuel d'information à l'utilisateur final
L'intégrateur OEM doit être conscient de ne pas fournir des informations à l'utilisateur final quant à la
façon d'installer ou de supprimer ce module RF dans le manuel de l'utilisateur du produit final qui
intègre ce module.
Le manuel de l'utilisateur final doit inclure toutes les informations réglementaires requises et
avertissements comme indiqué dans ce manuel.
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Contents
Contact Information
Revision History
Contents
1. Introduction
2. Electrical Specifications
....................................................................................................................................................
1.1. Features
2.1. Host interface pin assignments
2.1.1. LGA Pad Diagram
2.1.2. Pin Assignments
2.2. Power supply
2.3. USB interface
2.4. SGMII interface
2.5. HSIC interface
2.6. SIM interface
2.7. Control interface (wakeup)
2.8. Digital interface
2.8.1. JTAG Interface
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2
10
12
12
13
13
13
14
16
18
19
20
21
21
22
22
2.8.2. SPI Master Interface
2.8.3. PCM Interface
2.8.4. I2S Interface
2.8.5. I2C Interface
2.8.6. UART Interface
2.8.7. ADC Interface
3. RF Specifications
3.1. RF connections
3.2. RF Layout guidance
3.3. Antenna Guidance
3.4. Interference and sensitivity
3.5. Radiated sensitivity measurement
3.6. GNSS external circuit design
3.7. Supported frequencies
4. Software Interface
4.1. Support tools
4.2. USB interface
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23
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24
24
25
26
26
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28
28
29
29
29
31
31
31
5. Mechanical and Environmental Certifications
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5.1. PCBA Form Factor
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32
5.2. Labeling
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6. Regulatory Compliance and Certification
6.1. Certification testing
7. Safety Recommendation
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36
36
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1. Introduction
The M14Q2SG is a Cat. 1 LTE modem which incorporates an application CPU subsystem and a host of
peripheral interfaces and functions uniquely designed to address the power/performance/cost
requirements of IoT and M2M applications. The chip is based on Qualcomm’s MDM architecture which
offers OFDMA-related software based signal processing capabilities that significantly exceed traditional
communications ARM cores.
The CPU subsystem features a high performance Cortex A7 microprocessor running a Linux OS with a
variety of host interfaces including USB 2.0, SGMII, SPI, UART, PCM, I2C, HSIC, USIM & SDC. The module
supports integrated VoLTE functionality, with a variety of narrow- and wide-band CODECs and full IMS
signaling.
1.1. Features
3GPP category support: LTE Cat. 1 with 10/5 Mbps for DL/UL
Supports LTE B2/4/5/12/25/26
Supports WCDMA B2/5
Supports GPS/GLONASS
Ultra-high-performance Cortex A7 microprocessor
Modem subsystem (MSS)
Integrated support for VoLTE
Resource and power management (RPM) subsystem
Optimized for M2M and IoT markets
Interfaces
–
HS USB 2.0 with integrated PHY
–
SGMII interface
–
HSIC interface
–
Dual UART interfaces (4 bit and 2 bit) for data transfer and diagnostic tools
–
SDC1: First SPI interface
–
I2C: Second SPI interface
–
USIM interface
–
GPIOs
–
ADC
–
PCM/I2S
–
JTAG interface
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2. Electrical Specifications
2.1. Host interface pin assignments
2.1.1. LGA Pad Diagram
Figure 1. LGA pad diagram (top view)
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2.1.2. Pin Assignments
Interface Family
Signal
Description
I/O
RF Interfaces
ANT1_DRX
Diversity antenna
I
ANT_GNSS
Reserved for GNSS receiver
I
ANT0_TRX
Main Antenna
I/O
User Identity Module
VREG_L6_UIM1
Power source for UIM
O
UIM1_DATA
Data in/out
I/O
UIM1_CLK
Clock signal
O
UIM1_RESET
Reset signal
O
UIM1_DETECT
UIM Detect signal
I/O
Data
Interfaces
USB 2.0
USB_HS_DP
USB Data Positive
I/O
USB Detect
USB Detect
I
USB_HS_DM
USB Data Negative
I/O
HSIC
HSIC USB_STROBE
HSIC USB Strobe
I/O
HSIC USB_DATA
HSIC USB Data
I/O
SGMII
SGMII_RX_P
SGMII receive - plus
I
SGMII_RX_M
SGMII receive - minus
I
SGMII_TX_P
SGMII transmit - plus
O
SGMII_TX_M
SGMII transmit - minus
O
SGMII_MDIO
SGMII Management data
I/O
SGMII_MDC
SGMIIManagement data clock
I/O
UART1
UART1_CTS_N
Clear To Send for UART 1
I
UART1_RFR_N
UART ready for frame
O
UART1_RX
Receive for UART 1
I
UART1_TX
Transmit for UART 1
O
UART2
MDM_DBG_UART_RX
Receive for UART 2
I
MDM_DBG_UART_TX
Transmit for UART 2
O
I2C/2nd_ SPI
I2C_SDA
Data in/out
I/O
2nd_SPI_EN_1
2nd_SPI chip select
O
I2C_SCL
Clock signal
O
2nd_SPI_CLK
2nd_SPI serial clock
O
NC
NC
SPI_MOSI
2nd_SPI master out slave in
O
NC
NC
Table 1. Pin interface family
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SPI_MISO
2nd_SPI master in slave out
I
SDC1/1st_SPI
SDC1_DATA_3
SDC1_DATA_3
I/O
1st_SPIM_MOSI
1st_SPI master out slave in
O
SDC1_DATA_2
SDC1_DATA_2
I/O
1st_SPIM_MISO
1st_SPI master in slave out
I
SDC1_DATA_1
SDC1_DATA_1
I/O
1st_SPIM_EN_1
1st_SPI chip select
O
SDC1_DATA_0
SDC1_DATA_0
I/O
1st_SPIM_CLK
1st_SPI serial clock
O
SDC1_CMD
SDC1_CMD
I/O
SDC1_CLK
SDC1_CLK
O
Module Control and
State Interfaces
WWAN_STATE
Wireless WAN Radio State
O
POWER_ON
Power On the module
I
WAKEUP_OUT
Modulewakes up hostOR GPIO
O
WAKEUP_IN
Hostwakes upmodule ORGPIO.
I
RESET
Reset the module
I
Power and Ground
VREF
Voltage Reference Output
O
VCC
Main Power
I
GND
GND
I
General Purpose
GPIO
Digital I/O
I/O
ADC_CONVENTOR
ADC_CONVENTOR
I
AUDIO
PCM/I2S
PCM_DIN
PCM_DIN
IO
AUX_BT_I2S_DATA0
AUX_BT_I2S_DATA0
IO
PCM_DOUT
PCM_DOUT
IO
AUX_BT_I2S_DATA1
AUX_BT_I2S_DATA1
IO
PCM_CLK
PCM_CLK
O
AUX_BT_I2S_SCK
AUX_BT_I2S_SCK
O
PCM_SYNC
PCM_SYNC
O
AUX_BT_I2S_WS
AUX_BT_I2S_WS
O
RFU
RFU
RFU
Reserved For Future Use
I
Debug
JTAG
MDM_JTAG_SRST_N
JTAG reset for debug
I
MDM_JTAG_TCK
JTAG clock input
I
MDM_JTAG_TDI
JTAG data input
I
MDM_JTAG_TDO
JTAG data output
O
MDM_JTAG_TMS
JTAG mode select input
I
MDM_JTAG_TRST_N
JTAG reset
O
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MDM_PS_HOLD
PS_HOLD
I
Force_USB_BOOT
Force_USB_BOOT_CONFIG
Force USB BOOT CONFIG
I
Table 2. Digital I/O characteristics
Power
Pin Name
Pads
Description
Voltage Level (V)
Min.
Typ.
Max.
VCC
VCC1 to VCC6
Nos. 37 to 42
Main Power Supply
3.3
3.8
4.2
Note: This is preliminary data for reference and will be updated according to the final version of the
MDM9207 datasheet.
2.2. Power supply
LTE module power input is VCC. The internal power chipset will transfer VCC to other power level.
Table 3. Power supply specifications
The M14Q2SG includes an integrated power manager enabling single and direct voltage supply from the
battery, reducing the overall bill of materials.
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Figure 2. M14Q2SG internal power path
Net Name
Current Value
VCC(1–6) total
2A
UIM_VCC
150 mA
VREF
300 mA
Layout Suggestion: Each power trace should possess sufficient line width to withstand its respective
current listed in the table below:
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2.3. USB interface
Function
Net
Length (mil)
USB
USB_Dp
545.54
USB_Dn
503.04
Name
Description
Input/Output
(Direction to module)
Voltage Level (V)
Min.
Typ.
Max.
D+
USB data positive
(low-/full-speed)
Input High
2
3.3
3.6
Input Low
0
0.8
Output High
2.8
3.3
3.6
Output Low
0.3
USB data positive
(high-speed)
Input High
0.3
0.44
Input Low
0
0.01
Output High
0.36
0.38
0.44
Output Low
0
0.01
D–
USB data negative
(low-/full-speed)
Input High
2
3.3
3.6
Input Low
0
0.8
Output High
2.8
3.3
3.6
Output Low
0.3
USB data negative
(high-speed)
Input High
0.3
0.44
Input Low
0
0.01
Output High
0.36
0.38
0.44
Output Low
0
0.01
The M14Q2SG module complies with USB 2.0 high-speed protocol. The USB input/output lines follow
USB 2.0 specifications.
Table 4. Signals of the USB interface
The layout design of this circuit on the host board should comply with the USB 2.0 high-speed protocol.
Layout suggestion:
Differential impedance: 90 Ω
Space to other signals should be at least 20 mils
Intra-lane length difference should be less than 150 mils
Maximum length for each trace:150 mm
Signals lengths on M14Q2SG are tuned as below:
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2.4. SGMII interface
The M14Q2SG includes integrated Ethernet MAC with SGMII interfaces with the following key features:
IEEE 802.3 compliance
Full duplex at 1 Gbps
Half/full duplex for 10/100 Mbps
Supports VLAN tagging
Supports IEEE 1588, Precision Time Protocol (PTP)
Can be used to connect to external Ethernet PHYs such as AR8033 or to an external switch
The following figures describe an example of the additional logic connection between the M14Q2SG and
the Ethernet chip.
Layout suggestion:
Differential impedance:100 Ω
Space to other signals: > 3x line width
Lane-to-lane space: > 3x line width
Intra-lane mismatch: < 0.7 mm
Figure 3. SGMII circuit example
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Signals lengths on the M14Q2SG are tuned as below:
Function
Net
Length (mil)
SGMII
SGMII_TX_P
617.11
SGMII_TX_M
642.13
SGMII_RX_P_C+SGMII_RX_P
661.40
SGMII_RX_M_C+SGMII_RX_M
675.06
Function
Net
Length (mil)
HSIC
HSIC_STB
287.29
HSIC_DATA
315.04
2.5. HSIC interface
The M14Q2SG includes a HSIC interface. This host interface can be connected to other application
processor or interface-transfer chipset.
Figure 4. HSIC circuit example
Layout suggestion:
Single-end impedance: 50 Ω
Intra-lane mismatch: < 2 mm
Maximum trace length:100 mm
Signals lengths on the M14Q2SG are tuned as below:
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2.6. SIM interface
The M14Q2SG includes a SIM controller, interface pins, and a dedicated LDO (3.0 V or 1.8 V).
The following figures describe the additional logic connection between the M14Q2SG and the SIM card.
Figure 5. SIM card circuit (example)
2.7. Control interface (wakeup)
In applications where power consumption is a major factor in performance metrics (such as
battery-operated sensors that are based on IOT/M2M modem solution and also include a third party
host), it is necessary to define a simple interface that will allow both the modem and the host to be able
to enter low power states whenever possible and the other side to wake it up once required.
For example, if the host has no data to transmit nor any other tasks, it may enter some low power state
according to its own capabilities and configurations. If during that period the host is in a low power state
and the modem suddenly receives data, it must wake-up the host.
A similar requirement exists from the other side.For example, if the modem is in a low power state and
suddenly the host must transmit data, it must be able to wake-up the modem.
The interface consists of two signals: One is driven by the host and received by the modem; the other is
driven by the modem and received by the host.
Each side can wake the other side by toggling wakeup signal high and allowing the other side to go to
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sleep when not needed by toggling it low.
“WAKEUP_IN” (Host: Output, Modem: Input):
LOW: SoC does not require the MODEM (allowing it to sleep).
HIGH: SoC requires the MODEM or acknowledges it is ready following a wakeup request from the
MODEM.
“WAKEUP_OUT” (Host: Input, Modem: Output):
LOW: The MODEM does not require the Host (allowing it to sleep)
HIGH: The MODEM requires the Host or acknowledges it is ready following a wakeup request
from the SoC.
2.8. Digital interface
This section provides the required AC timing information relating to Module Digital Interfaces.
2.8.1. JTAG Interface
There is one JTAG interface for LGA module debugging.
Figure 6. JTAG schematic (example)
2.8.2. SPI Master Interface
SPIM_CLK – Output clock
SPIM_CS – Output, chip-select
SPIM_MOSI – Output, data to slave
SPIM_MISO – Input, data from slave
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Timing
Config1
Config2
PCM_SYNC
I2S_WS
PCM_DIN
I2S_DATA0
PCM_DOUT
I2S_DATA1
PCM_CLK
I2S_SCK
Note: This part will be updated according to the final MDM9207 datasheet.
2.8.3. PCM Interface
The LGA module provides one PCM digital audio interface. The PCM data bus voltage level is 1.8 V.
Figure 7. PCM connection (example)
2.8.4. I2S Interface
PCM and I2S share the same pins on the M14Q2SG; the PCM signal pins can be configured as an I2S
interface.
Figure 8. I2S connection (example)
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2.8.5. I2C Interface
Adding pull-high resistors to 1.8 V through the 2.2 kΩ resistors is recommended.
Figure 9. I2C connection (example)
2.8.6. UART Interface
There are two UART interfaces: One is a 4 bit UART for high-speed data transfer, and the other is a 2 bit
UART for diagnostic tools and debugging.
Figure 10. UART connection (example)
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2.8.7. ADC Interface
An Analog to Digital Converter (ADC) input is provided by the M14Q2SG. The converter is a 16 bit
resolution, ranging from 0.1 V to 1.7 V, with a sampling rate of 2.4 MHz.
Layout suggestion:
Should be protected by GND
Should be protected from noise and other easily radiated signals
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3. RF Specifications
3.1. RF connections
The M14Q2SG has three RF pads; developers may connect them via 50 Ω traces to the main board.
ANT0_TRX pad (Pin15) – Primary RX/TX path
ANT1_DRX pad (Pin21) – Diversity path
ANT_GNSS pad (Pin9) – GNSS path
3.2. RF Layout guidance
It is recommended that grounds not be present under the surface of the RF pads in the layout. Details
are included below.
The RF trace between RF pads and antenna should as shorter as possible with 50ohm characteristic
impedance.
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The characteristic impedance depends on the dielectric of PCB, the track width and the
ground plane spacing. Microstrip type is required. The detail simulation as below.
The RF trace of the test board which was used in the FCC test is defined as below.
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3.3. Antenna Guidance
The antenna should be 50ohm characteristic impedance with the return loss of better than -10dB
at the operation band. The antenna gain would affect the radiated power and regulator test result.
3.4. Interference and sensitivity
This section includes tips to assist developers in identifying the interference that may affect the
M14Q2SG when is it used in systems.
Interference from other wireless devices
–
Harmonics, inter-modulated signal generated from wireless devices that fall in RX ranges of
the M14Q2SG, may result in degraded RX performance.
–
It is highly recommended to check RX performance of entire systems within the shielding
environment.
Interference from host interface
– High-speed signal-switching elements in systems can easily couple noise into the module
(Ex.: DDR memory, LCD modules, DC-DC converter).
Methods to avoid sources of interference
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–
Band
Uplink (MHz)
Downlink (MHz)
LTE Band 2
1,850–1,910
1,930–1,990
LTE Band 4
1,710–1,755
2,110–2,155
LTE Band 5
824–849
869–894
LTE Band 12
699–716
729–746
LTE Band 25
1,850-1,915
1,930-1,995
LTE Band 26
814-849
859-894
Band
Uplink (MHz)
Downlink (MHz)
WCDMA Band 2
1,850–1910
1,930–1,990
WCDMA Band 5
824–849
869–894
Antenna location is important; we recommend directing the antenna away from high-speed
switching signals. Furthermore, the trace from the module to the antenna should be as
short as possible and must be shielded by complete grounding.
–
The M14Q2SG is well shielded; the high-speed elements on a system should have shielding
reserved during the early stages of development.
3.5. Radiated sensitivity measurement
Over-the-air testing can demonstrate the TRX ability of the whole system. Keys elements that affect the
measurement are:
Module ability (refer Specification)
Antenna Gain
System noise source
The OTA performance should be performed in an OTA chamber.
3.6. GNSS external circuit design
One GNSS SAW filter, LNA, and another GNSS SAW filter need to be used between the module and
antenna. in129 GPIO05Pin129 GPI
3.7. Supported frequencies
Table 5. Band support
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Table 6. Bandwidth support
Band
Bandwidth
1.4 MHz
3 MHz
5 MHz
10 MHz
15 MHz
20 MHz
LTE Band 2
LTE Band 4
LTE Band 5
-
-
LTE Band 12
-
-
LTE Band 25
LTE Band 26
-
Band
Frequency
Unit
GPS
1574.4 - 1576.4
MHz
GLONASS
1597.5 - 1605.9
MHz
Table8. GPS and GLONASS support band
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4. Software Interface
4.1. Support tools
The M14Q2SG is compatible with the following support tools:
WNC M14Q2SG Connection Manager (WNCCM)
4.2. USB interface
The M14Q2SG supports 3GPP standard AT commands and proprietary AT commands; the MAL Manager
SDK is also supported for Linux platforms.
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5. Mechanical and Environmental Certifications
5.1. PCBA Form Factor
Dimensions 26.3 mm (typ.) × 23.1 mm (typ.) × 2.3 mm (typ.), tolerance: ± 0.15 mm
Top view
Right view
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Bottom view
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Pads location
Pin1 location
Figure 11. PCBA dimensions
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5.2. Labeling
When the module is installed in the host device, the FCC ID label must be visible through a window on
the final device or it must be visible when an access panel, door or cover is easily re-moved. If not, a
second label must be placed on the outside of the final device that contains the following text:
“Contains FCC ID: NKRM14Q2SG”
The grantee's FCC ID can be used only when all FCC compliance requirements are met
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6. Regulatory Compliance and Certification
6.1. Certification testing
PTCRB, FCC,IC
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7. Safety Recommendation
Be sure the use of this product is allowed in the country and in the environment required. The use of this
product may be dangerous and must be avoided in the following areas:
Where it can interfere with other electronic devices in environments such as hospitals, airports,
and aircraft
Where there is a risk of explosion such as gasoline stations and oil refineries
It is the responsibility of the user to comply with his or her country’s regulations and the specific
environmental regulations.
Do not disassemble the product; any mark of tampering will compromise the warranty’s validity.
We recommend following the instructions of the hardware user guides for a correct wiring of the
product. The product must be supplied with a stabilized voltage source, and the wiring must conform to
the security and fire-prevention regulations.
This product must be handled with care; avoid any contact with the pins because electrostatic discharge
may damage the product. Same caution must be taken regarding the SIM card; carefully check the
instructions for its use. Do not insert or remove the SIM when the product is in power-saving mode.
The system integrator is responsible of the functioning of the final product; therefore, care must be
taken for the external components of the module as well as for project or installation issues—there may
be a risk of disturbing the GSM network or external devices or of having an impact on device security. If
you have any doubts, please refer to the technical documentation and the relevant regulations in force.
Every module must be equipped with a proper antenna with specific characteristics. The antenna must
be installed with care in order to avoid any interference with other electronic devices.
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