Dejero EM9191 Quick setup guide

Hardware Integration Guide
August 22,2022

EM9191Hardware Integration Guide
August 22,2022
2
Important Notice
Due to the nature of wireless communications, transmission and reception of data can never be
guaranteed. Data may be delayed, corrupted (i.e., have errors) or be totally lost. Although significant
delays or losses of data are rare when wireless devices such as the Dejero Labs Inc modem are
used ina normal manner with a well-constructed network, the Dejero Labs Inc modem should not be
used in situations where failure to transmit or receive data could result in damage of any kind to the
user or any other party, including but not limited to personal injury, death, or loss of property. Dejero
Labs Inc accepts no responsibility for damages of any kind resulting from delays or errors in data
transmitted or received using the Dejero Labs Inc modem, or for failure of the Dejero Labs Inc
modem to transmit or receive such data.
Safety and Hazards
Do not operate the Dejero Labs Inc modem in areas where cellular modems are not advised without
proper device certifications. These areas include environments where cellular radio can interfere
such asexplosive atmospheres, medical equipment, or any other equipment which may be
susceptible to any form of radio interference. The Dejero Labs Inc modem can transmit signals that
could interfere with this equipment. Do not operate the Dejero Labs Inc modem in any aircraft,
whether the aircraft is on the ground or in flight. In aircraft, the Dejero Labs Inc modem MUST BE
POWERED OFF.When operating, the Dejero Labs Inc modem can transmit signals that could
interfere with various onboard systems.
Note: Some airlines may permit the use of cellular phones while the aircraft is on the ground and the door
is open. Dejero Labs Inc modems may be used at this time.
The driver or operator of any vehicle should not operate the Dejero Labs Inc modem while in control
of a vehicle. Doing so will detract from the driver or operator’s control and operation of that vehicle. In
some states and provinces, operating such communications devices while in control of a vehicle is an
offence.
Limitations of Liability
This manual is provided “as is”. Dejero Labs Inc makes no warranties of any kind, either expressed
or implied, including any implied warranties of merchantability, fitness for a particular purpose, or
noninfringement. The recipient of the manual shall endorse all risks arising from its use.
The information in this manual is subject to change without notice and does not represent a
commitment on the part of Dejero Labs Inc.DEJERO LABS INC AND ITS AFFILIATES
SPECIFICALLY DISCLAIM LIABILITY FOR ANY AND ALL DIRECT, INDIRECT, SPECIAL,
GENERAL, INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR EXEMPLARY DAMAGES INCLUDING,
BUT NOT LIMITED TO, LOSS OF PROFITS OR REVENUE OR ANTICIPATED PROFITS OR
REVENUE ARISING OUT OF THE USE OR INABILITY TO USE ANY DEJERO LABS INC
PRODUCT, EVEN IF DEJERO LABS INC AND/OR ITS AFFILIATES HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES OR THEY ARE FORESEEABLE OR FOR CLAIMS BY ANY
THIRD PARTY.
Notwithstanding the foregoing, in no event shall Dejero Labs Inc and/or its affiliates aggregate
liability arising under or in connection with the product, regardless of the number of events,
occurrences, or claims giving rise to liability, be in excess of the price paid by the purchaser for the
Dejero Labs Inc product.

EM9191Hardware Integration Guide
August 22,2022
3
Patents
This product may contain technology developed by or for Dejero Labs Inc.
This product includes technology licensed from QUALCOMM®.
This product is manufactured or sold by Dejero Labs Inc or its affiliates under one or more patents
licensed from MMP Portfolio Licensing.
Copyright
© 2022 Dejero Labs Inc.All rights reserved.
Trademarks
Windows®and Windows Vista®are registered trademarks of Microsoft Corporation.
Macintosh®and Mac OS X®are registered trademarks of Apple Inc., registered in the U.S. and
othercountries.
QUALCOMM®is a registered trademark of QUALCOMM Incorporated. Used under
license.Other trademarks are the property of their respective owners.
Contact Information
Sales information and technical support, including
warranty and returns
Web: dejero.com/company/contact-us/
US & Canada toll-free number: 1-866-808-3665
International number: 1-519-772-4824
Corporate and product information Web: dejero.com

EM9191Hardware Integration Guide
August 22,2022
4
Contents
1. INTRODUCTION ..................................................................................................5
1.1. Accessories .........................................................................................................................5
1.2. Required Connectors...........................................................................................................5
2. POWER ................................................................................................................6
2.1. Power Supply.......................................................................................................................6
2.2. Module Power States ..........................................................................................................6
2.2.1. Power State Transitions.............................................................................................7
3. RF SPECIFICATIONS ..........................................................................................9
3.1. RF Connections .................................................................................................................10
3.1.1. Shielding ..................................................................................................................10
3.2. Sub-6G Antennas and Cabling..........................................................................................10
3.3. Ground Connection ...........................................................................................................11
3.4. Interference and Sensitivity ...............................................................................................11
3.4.1. Interference from Other Wireless Devices...............................................................11
3.4.2. Host-generated RF Interference ..............................................................................12
3.4.3. Device-generated RF Interference ..........................................................................12
3.4.4. Methods to Mitigate Decreased Rx Performance....................................................12
3.4.5. Radiated Spurious Emissions (RSE).......................................................................12
3.5. Radiated Sensitivity Measurement....................................................................................12
3.5.1. Dejero Labs Inc’ Sensitivity Testing and Desensitization Investigation .................... 13
3.5.2. Sensitivity vs. Frequency .........................................................................................13
3.6. Supported Frequencies .....................................................................................................13
3.7. Antenna Specification........................................................................................................16
3.7.1. Recommended WWAN Antenna Specifications......................................................16
3.7.2. Recommended GNSS Antenna Specifications .......................................................18
4. REGULATORY COMPLIANCE AND INDUSTRY CERTIFICATION .................19
4.1. RoHS Directive Compliant.................................................................................................19
4.2. Important Notice ................................................................................................................19
4.3. Safety and Hazards ...........................................................................................................19
4.4. Important Compliance Information for the United States and Canada..............................20
5. ABBREVIATIONS ..............................................................................................23

August 22, 2022
5
1. Introduction
The Dejero Labs Inc EM9191Embedded Module is a FirstNet-ready (B14 LTE) M.2 module and
provides 5G NR Sub-6G, 5G mmWave, 4G LTE advanced Pro, 3G (HSPA+, UMTS), and GNSS
connectivity for a wide range of devices and purposes, including business, personal, and
portable computing and communication devices, IoT devices, M2M applications and industrial
use cases.
EM9191Embedded Modules are available in a variety of region-specific and function-specific
SKUs, including both 5G NR Sub-6Gand 5G mmWave-capable variants.
1.1. Accessories
A hardware development kit is available for M.2 modules. The kit contains hardware
components for evaluating and developing with the module, including:
Development board
Cables
Antennas
Other accessories
For over-the-air 5G and LTE testing, ensure that an appropriate antenna is being used.
1.2. Required Connectors
Table 1-1 describes the connectors used to integrate the EM9191Embedded Module into your host
device.
Table 1-1 Required Host-Module Connectors1
Connector Type
Description
RF cables — 5G NR Sub-6G/ LTE/GNSS
Mate with M.2-spec connectors
Four connector jacks (mate with I-PEX 20448-001R-081 or
equivalent)
RF cables — mmWave
Eight connector jacks (mate with I-PEX 20955-001R-13 or
equivalent)
Two cables for each mmWave antenna module (up to 8 cables
in total)
EDGE (67 pin)
Slot B compatible — Per the M.2 standard (PCI Express M.2™
Specification Revision 3.0, Version 1.2), a generic 75-pin
position EDGE connector on the motherboard uses a
mechanical key to mate with the 67-pin notched module
connector.
Manufacturers include LOTES (part #APCI0018-P001A01),
Kyocera, JAE, Tyco, and Longwell.
SIM Industry-standard connector.
1. Manufacturers/part numbers are for reference only and are subject to change. Choose connectors that are appropriate
for your own design.

6
2. Power
2.1. Power Supply
The host provides power to the EM9191through multiple power and ground pins as summarized
in Table 2-1.
The host must provide safe and continuous power (via battery or a regulated power supply) at all
times; the module does not have an independent power supply, or protection circuits to guard against
electrical issues.
Table 2-1 Power and Ground Specifications
Name Pins Specification Min Typ Max Units
VCC
(3.3V) 2, 4, 24, 38, 68, 70, 72, 74
Voltage range 3.135 3.3 4.4 V
Ripple voltage
-
-
100
mV
pp
Peak Current - - 4000 mA
Continuous
Current
- TBD - mA
GND 3, 5, 11, 27, 33, 39, 45, 51, 57, 71, 73 - 0 - V
2.2. Module Power States
The module has five power states, as described in Table 2-2.
Table 2-2 Module Power States
State Details
Host Is Powered
Host Interface Active
RF Enabled
Normal (Default
State)
Module is active
Default state. Occurs when VCC is first applied,
Full_Card_Power_Off# is deasserted (pulled high), and
W_DISABLE# is deasserted
Module is capable of placing/receiving calls, or establishing data
connections on the wireless network
Current consumption is affected by several factors, including:
Radio band being used
Transmit power
Receive gain settings
Data rate
 

August 22,2022

EM9191Hardware Integration Guide
Power
7
State Details
Host Is Powered
Host Interface Active
RF Enabled
Low Power
(Airplane Mode)

Module is active
Module enters this state:
Under host interface control:
Host issues AT+CFUN=0 (3GPP TS 27.007), or
Host asserts W_DISABLE#, after AT!PCOFFEN=0 has been
issued.
Automatically, when critical temperature or voltage trigger limits
have been reached)
 
-
Sleep
Normal state of module between calls or data connections
Module cycles between wake (polling the network) and sleep, at
network provider-determined interval.
 --
Off
Host keeps module powered off by asserting Full_Card_Power_Off#
(signal pulled low or left floating)
Module draws minimal current
 --
Disconnected Host power source is disconnected from the module and all voltages
associated with the module are at 0 V. ---
2.2.1. Power State Transitions
The module uses state machines to monitor supply voltage and operating temperature and notifies
the host when critical threshold limits are exceeded. (See Table 2-3 for trigger details and Figure 2-1
for state machine behavior.)
Power state transitions may occur:
Automatically, when critical supply voltage or module temperature trigger levels are encountered.
Under host control, using available AT commands in response to user choices (for example,
opting to switch to airplane mode) or operating conditions.
Table 2-3 Power State Transition Trigger Levels
Transition
Voltage
Temperature1
Notes
Trigger V Trigger
℃
Normal to Low Power VOLT_HI_CRIT 4.6 TEMP_LO_CRIT -45 RF activity suspended
VOLT_LO_CRIT 2.9 TEMP_HI_CRIT 118
Low Power to Normal VOLT_HI_NORM 4.4 TEMP_NORM_LO -30
RF activity resumed
Low Power to Normal
Or Remain in Normal
(Remove warnings)
VOLT_LO_NORM 3.135 TEMP_HI_NORM 100
Normal
(Issue warning) VOLT_LO_WARN 3.135 TEMP_HI_WARN 100
In the TEMP_HI_WARN state, the
module may have reduced
performance (Class B temperature
range).
Power off/on
(Host-initiated)
- - - -
Power off recommended when
supply voltage or module operating
temperature is critically low or high.
August 22,2022

EM9191Hardware Integration Guide
Power
8
1. Module junction temperature at the printed circuit board.
Normal mode
current_vcc <VOLT_LO_WARN
current_temp > TEMP_HI_WARN
current_vcc >VOLT_LO_NORM
current_temp < TEMP_HI_NORM
Normal mode
Low supply voltage warning
or
High temperature warning
current_vcc < VOLT_LO_CRIT
current_temp > TEMP_HI_CRIT
current_vcc > VOLT_HI_CRIT
Low power mode
(Manual transition)
Off mode Handled by
current_temp < TEMP_LO_CRIT
current_vcc < VOLT_HI_NORM
current_temp > TEMP_NORM_LO
Handled by Power State
state machine.
Host deasserts
Full_Card_Power_Off#
Power State state machine
Figure 2-1 Voltage/Temperature Monitoring State Machines
Note: Make sure that your system design provides sufficient cooling for the module.
August 22,2022

9
3. RF Specifications
The EM9191includes Four MHF4 RF connectors for use with host-supplied antennas, and eight
MHF7S connectors for use with up to four mmWave antenna modules (2 connectors per antenna
module):
Figure 3-1 Module Connectors Include Image with Spacing Info
Sub-6G/GNSS connectors:
Main: Primary Tx/PRx path for 3G/4G/5G (except for n41)
Auxiliary: Diversity Rx (except for n41) and GNSS L1
MIMO1: MIMO1 Rx Path and n41 TRx
MIMO2: MIMO2 Rx Path and n41 DRx and GNSS L5
mmWave connectors:
Eight connectors — Up to four mmWave antenna modules (QTM525 or QTM527), two
connectors as a pair (H/V) for each. The EM9190 module does not have integrated antennas.
Refer to Table 3-1 for each pair of coaxial connections. For low-power usage, if not all 4
QTM525 modules are equipped, integration sequence from QTM0 to QTM3 is recommended,
leave unused connectors NC (Contact Dejero Labs Inc as the RFC has to be updated to
reflect the number of QTMs). Note that for high-power usage, it’s not recommended to leave
any QTM527 NC as it will violate 3GPP EIRP compliance for PC1.
Table 3-1 mmWave Port Assignment
QTM P_ON
QTM525 IF port <-> mmWave IF Connector
QTM527 IF port <-> mmWave IF Connector
IF1
IF2
IF1
IF2
QTM0 QTM0_PON QTM0_H <-> IFH1 QTM0_V <-> IFV4 QTM0_H <-> IFH1 QTM0_V <-> IFV4
QTM1 QTM1_PON QTM1_H <-> IFH4 QTM1_V <-> IFV1 QTM1_H <-> IFH2 QTM1_V <-> IFV3
QTM2 QTM2_PON QTM2_H <-> IFH2 QTM2_V <-> IFV3 QTM2_H <-> IFH3 QTM2_V <-> IFV2
QTM3 QTM3_PON QTM3_H <-> IFH3 QTM3_V <-> IFV2 QTM3_H <-> IFH4 QTM3_V <-> IFV1
August 22,2022

EM9191Hardware Integration Guide
RF Specifications
10
3.1. RF Connections
When attaching antennas to the module:
Sub-6G /GNSS connectors:
Use RF plug connectors that are compatible with the following RF receptacle connectors:
I-PEX (20449-001E (MHF4)).
Match coaxial connections between the module and the antenna to 50Ω.
Minimize RF cable losses to the antenna; the recommended maximum cable loss for antenna
cabling is 0.5 dB.
mmWave connectors:
Use RF plug connectors that are compatible with the following RF receptacle connectors:
I-PEX (20956-001E-01 (MHF7S)).
To ensure best thermal performance, use the ground hole (if possible) to attach (ground) the
device to a metal chassis.
Note: If antenna connection is shorted or open, the modem will not sustain permanent damage.
3.1.1. Shielding
The module is fully shielded to protect against EMI and must not be removed.
3.2. Sub-6G Antennas and Cabling
When selecting the Sub-6G antennas and cables, it is critical to RF performance to match antenna
gain and cable loss.
Note: There is no explicit list of antennas required in the application. The PWB-6-60-RSMAP Wide Band
4G/5G Terminal Paddle Antenna has been verified as a reference. For detailed electrical
performance criteria, see Antenna Specification.
Choosing the Correct Sub-6G Antenna and Cabling
When matching antennas and cabling:
The antenna (and associated circuitry) should have a nominal impedance of 50Ω with a return
loss of better than 10 dB across each frequency band of operation.
The system gain value affects both radiated power and regulatory (FCC, IC, CE, etc.) test
results.
Designing Custom Sub-6G Antennas
Consider the following points when designing custom antennas:
A skilled RF engineer should do the development to ensure that the RF performance is
maintained.
If multiple modules will be installed on the same platform, you may want to develop separate
antennas for maximum performance.
Determining the Sub-6G Antenna’s Location
When deciding where to put the antennas:
Antenna location may affect RF performance. Although the module is shielded to prevent
interference in most applications, the placement of the antenna is still very important — if the
host device is insufficiently shielded, high levels of broadband or spurious noise can degrade the
module’s performance.
Connecting cables between the module and the antenna must have 50Ω impedance. If the
impedance of the module is mismatched, RF performance is reduced significantly.
August 22,2022