SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
Notice
While reasonable efforts have been made to assure the accuracy of this document, Telit assumes no
liability resulting from any inaccuracies or omissions in this document, or from use of the information
obtained herein. The information in this document has been carefully checked and is believed to be
entirely reliable. However, no responsibility is assumed for inaccuracies or omissions. Telit reserves
the right to make changes to any products described herein and reserves the right to revise this
document and to make changes from time to time in content hereof with no obligation to notify any
person of revisions or changes. Telit does not assume any liability arising out of the application or use
of any product, software, or circuit described herein; neither does it convey license under its patent
rights or the rights of others.
It is possible that this publication may contain references to, or information about Telit products
(machines and programs), programming, or services that are not announced in your country. Such
references or information must not be construed to mean that Telit intends to announce such Telit
products, programming, or services in your country.
Copyrights
This instruction manual and the Telit products described in this instruction manual may be, include or
describe copyrighted Telit material, such as computer programs stored in semiconductor memories or
other media. Laws in the Italy and other countries preserve for Telit and its licensors certain exclusive
rights for copyrighted material, including the exclusive right to copy, reproduce in any form,
distribute and make derivative works of the copyrighted material. Accordingly, any copyrighted
material of Telit and its licensors contained herein or in the Telit products described in this instruction
manual may not be copied, reproduced, distributed, merged or modified in any manner without the
express written permission of Telit. Furthermore, the purchase of Telit products shall not be deemed
to grant either directly or by implication, estoppel, or otherwise, any license under the copyrights,
patents or patent applications of Telit, as arises by operation of law in the sale of a product.
Computer Software Copyrights
The Telit and 3rd Party supplied Software (SW) products described in this instruction manual may
include copyrighted Telit and other 3rd Party supplied computer programs stored in semiconductor
memories or other media. Laws in the Italy and other countries preserve for Telit and other 3rd Party
supplied SW certain exclusive rights for copyrighted computer programs, including the exclusive
right to copy or reproduce in any form the copyrighted computer program. Accordingly, any
copyrighted Telit or other 3rd Party supplied SW computer programs contained in the Telit products
described in this instruction manual may not be copied (reverse engineered) or reproduced in any
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purchase of Telit products shall not be deemed to grant either directly or by implication, estoppel, or
otherwise, any license under the copyrights, patents or patent applications of Telit or other 3rd Party
supplied SW, except for the normal non-exclusive, royalty free license to use that arises by operation
of law in the sale of a product.
Usage and Disclosure Restrictions
License Agreements
The software described in this document is the property of Telit and its licensors. It is furnished by
express license agreement only and may be used only in accordance with the terms of such an
agreement.
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without prior written permission of Telit
High Risk Materials
Components, units, or third-party products used in the product described herein are NOT fault-tolerant
and are NOT designed, manufactured, or intended for use as on-line control equipment in the
following hazardous environments requiring fail-safe controls: the operation of Nuclear Facilities,
Aircraft Navigation or Aircraft Communication Systems, Air Traffic Control, Life Support, or
Weapons Systems (High Risk Activities"). Telit and its supplier(s) specifically disclaim any expressed
or implied warranty of fitness for such High Risk Activities.
Trademarks
TELIT and the Stylized T Logo are registered in Trademark Office. All other product or service
names are the property of their respective owners.
Copyright © Telit Communications S.p.A.
Contents
The aim of this document is the description of typical hardware solutions useful for developing a
product with the Telit CE910 module.
This document is intended for Telit customers who are about to implement their applications using
our CE910 modules.
For general contact, technical support, to report documentation errors and to order manuals, contact
Telit Technical Support Center (TTSC) at:
Alternatively, use:
For detailed information about where to buy the Telit modules or for recommendations on accessories
and components visit:
To register for product news and announcements or for product questions contact Telit Technical
Support Center (TTSC).
Our aim is to make this guide as helpful as possible. Please keep us informed of comments and
suggestions for improvements.
Telit appreciates feedback from the users of our information.
http://www.sensorexpert.com.cn 400-883-3391
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This document contains the following chapters:
Chapter 1: “Introduction” provides a scope for this document, target audience, contact and support
information, and text conventions.
Chapter 2: “General Product Description” gives an overview of the features of the product.
Chapter 3: “CE910 Module Connections” deals with the pin out configuration and layout.
Chapter 4: “Hardware Commands” How to operate the module via hardware.
Chapter 5: “Power supply” Power supply requirements and general design rules.
Chapter 6: “Antenna” The antenna connection and board layout design are the most important parts in
the full product design.
Chapter 7: “USB Port” The USB port on the Telit CE910 is the core of the interface between the
module and OEM hardware.
Chapter 8: “Serial ports” Refers to the serial ports of the Telit CE910.
Chapter 9: “Audio Section overview” Refers to the audio blocks of the Base Band Chip of the CE910
Telit Module.
Chapter 10: “General Purpose I/O” How the general purpose I/O pads can be configured.
Chapter 11: “ADC section” Deals with this one kind of converter.
Chapter 12: “Mounting CE910 on the Application” Mechanical dimensions and
recommendations on how to mount the module on the user’s board.
Chapter 13: “Packing System” Deals with packing system.
Chapter 14: “Application Design Guide” Deals with the design of host system for download or
upgrade.
Chapter 15: “Conformity Assessment Issues” provides some fundamental hints about the conformity
assessment that the final application might need.
Chapter 16: “Safety Recommendation” provides some safety recommendations that must be followed
by the customer in the design of the application that makes use of the Telit CE910.
Chapter 17: “Document History” provides document revision history of the Telit CE910.
Danger – This information MUST be followed or catastrophic equipment failure or bodily injury
may occur.
Caution or Warning – Alerts the user to important points about integrating the module. If these
points are not followed, the module and end user equipment may fail or malfunction.
Tip or Information – Provides advice and suggestions that may be useful when integrating the
module.
All dates are in ISO 8601 format, i.e. YYYY-MM-DD.
CE910 Software User Guide, 1vv0301011
CE910 AT Commands Reference Guide, 80399ST10111A
Telit EVK2 User Guide, 1vv0300704
The aim of this document is the description of typical hardware solutions useful for developing a
product with the Telit CE910 module.
In this document all the basic functions of a mobile device will be taken into account; for each one of
them a proper hardware solution will be suggested and eventually the wrong solutions and common
errors to be avoided will be evidenced. Obviously this document cannot embrace all hardware
solutions and products that may be designed. Avoiding the discussed wrong solutions must be
considered as mandatory. While the suggested hardware configurations must not be considered
mandatory, the information given must be used as a guide and a starting point for properly developing
a product with the Telit CE910 module.
NOTE:
The integration of the CDMA 1xRTT module within a user application must be done according to the
design rules described in this manual.
The information presented in this document is believed to be accurate and reliable. However, no
responsibility is assumed by Telit Communication S.p.A. for its use, such as any infringement of
patents or other rights of third parties. No license is granted by implication or otherwise under any
patent rights of Telit Communication S.p.A. other than for circuitry embodied in Telit products. This
document is subject to change without notice.
Pin
Signal
I/O
Function
Type
USB FS 2.0 Communication Port
B15
USB_D+
I/O
USB differential Data(+)
C15
USB_D-
I/O
USB differential Data(+)
A13
VUSB
I
Power for the internal USB transceiver
5V
Asynchronous UART – Prog. / data +HW Flow Control
N15
C103/TXD
I
Serial data input from DTE
CMOS 1.8V
M15
C104/RXD
O
Serial data output to DTE
CMOS 1.8V
M14
C108/DTR
I
Input for (DTR) from DTE
CMOS 1.8V
L14
C105/RTS
I
Input for (RTS) from DTE
CMOS 1.8V
P15
C106/CTS
O
Output for (CTS) to DTE
CMOS 1.8V
N14
C109/DCD
O
Output for (DCD) to DTE
CMOS 1.8V
P14
C107/DSR
O
Output for (DSR) to DTE
CMOS 1.8V
R14
C125/RING
O
Output for (RI) to DTE
CMOS 1.8V
Asynchronous Auxiliary UART
D15
TX_AUX
O
Auxiliary UART (TX Data to DTE)
CMOS 1.8V
E15
RX_AUX
I
Auxiliary UART (RX Data from DTE)
CMOS 1.8V
RUIM Interface
(*NOTE)
A3
RUIMVCC
-
Reserved but applicable only to RUIM variant :
Power supply for the RUIM
1.8/3V
A5
RUIMIO
I/O
Reserved but applicable only to RUIM variant :
RUIM Data I/O
1.8/3V
A6
RUIMCLK
O
Reserved but applicable only to RUIM variant :
RUIM Clock
1.8/3V
A7
RUIMRST
O
Reserved but applicable only to RUIM variant :
RUIM Reset
1.8/3V
Digital Voice interface (Reserved)
B9
DVI_WA0
-
Reserved
B6
DVI_RX
-
Reserved
B7
DVI_TX
-
Reserved
B8
DVI_CLK
-
Reserved
Analog Voice Interface
B2
EAR+
AO
Earphone signal output, phase +
B3
EAR-
AO
Earphone signal output, phase -
B4
MIC+
AI
Microphone input, phase +
B5
MIC-
AI
Microphone input, phase -
Digital IO
C8
GPIO_01
I/O
GPIO_01 / STAT LED
CMOS 1.8V
C9
GPIO_02
I/O
GPIO_02
CMOS 1.8V
C10
GPIO_03
I/O
GPIO_03
CMOS 1.8V
To turn on the CE910, the pad ON_OFF* must be tied low for at least 1 second and then released.
The maximum current that can be drained from the ON_OFF* pad is 0.1 mA.
A simple circuit to power on the module is illustrated below:
Upon turning on CE910 module, the CE910 module is not active yet because the boot sequence of
CE910 is still executing internally. It takes about 10 seconds to complete the initialization of the
module internally.
For this reason, it would be useless to try to access CE910 during the Initialization state as below. The
CE910 module needs at least 10 seconds after the PWRMON goes High to become operational by
reaching the activation state.
The chart below describes the overall sequences for turning ON and OFF the module.
The Unconditional shutdown of the module could be activated using the HW_SHUTDOWN*
line(pad R13).
WARNING:
The hardware unconditional shutdown must NOT be used during normal operation of the device since
it does not detach the device from the network. It shall be used as an emergency exit procedure.
To unconditionally shutdown the CE910, the pad HW_SHUTDOWN* must be tied low for at least
800 milliseconds and then released.
NOTE:
Do not use any pull up resistor on the HW_SHUTDOWN* line nor any totem pole digital output. It is
pulled up internally to VBATT with 57kΩ. Using an external pull up resistor may bring latch up
problems on the CE910 power regulator and improper functioning of the module.
The line HW_SHUTDOWN* must be connected only in open collector configuration.
The HW_SHUTDOWN* will generate an unconditional shutdown of the module without an
automatic restart.
The module will shutdown but will NOT perform the detach from the cellular network.
The principal guidelines for the Power Supply Design embrace three different design steps:
the electrical design
the thermal design
the PCB layout
The electrical design of the power supply depends strongly on the power source where this power is
drained. We will distinguish them into three categories:
+5V input (typically PC internal regulator output)
+12V input (typically automotive)
Battery
The desired output for the power supply is 3.8V, hence there is not a big difference
between the input source and the desired output so a linear regulator can be used. A
switching power supply will not be suitable because of the low drop-out requirements.
When using a linear regulator, a proper heat sink must be provided in order to dissipate
the power generated.
A Bypass low ESR capacitor of adequate capacity must be provided in order to cut the
current absorption peaks close to the CE910. A 100μF tantalum capacitor is usually suited.
Make sure the low ESR capacitor on the power supply output (usually a tantalum one) is
rated at least 10V.
A protection diode must be inserted close to the power input in order to save the CE910
from power polarity inversion.
An example of a linear regulator with 5V input:
The desired output for the power supply is 3.8V, hence due to the big difference between
the input source and the desired output, a linear regulator is not suitable and must not be
used. A switching power supply would be preferable because of its better efficiency,
especially with the 1A peak current load represented by CE910.
When using a switching regulator, a 500 kHz or more switching frequency regulator is
preferable because of its smaller inductor size and its faster transient response. This
allows the regulator to respond quickly to the current peaks absorption.
In any case, the frequency and switching design selection is related to the application to
be developed due to the fact the switching frequency could also generate EMC
interferences.
For car PB battery the input voltage can rise up to 15.8V and this must be kept in mind
when choosing components: all components in the power supply must withstand this
voltage.
A bypass low ESR capacitor of adequate capacity must be provided in order to cut the
current absorption peaks. A 100μF tantalum capacitor is usually suited for this.
Make sure the low ESR capacitor on the power supply output (usually a tantalum one) is
rated at least 10V.
For car applications a spike protection diode must be inserted close to the power input in
order to clean the supply from spikes.
A protection diode must be inserted close to the power input in order to save the CE910
from power polarity inversion. This can be the same diode as for spike protection.
The PCB traces to CE910 and the Bypass capacitor must be wide enough to ensure no
significant voltage drops occur when the 1A current peaks are absorbed. This is a must
for the same above-mentioned reasons. Try to keep this trace as short as possible.
The PCB traces connecting the switching output to the inductor and the switching diode
must be kept as short as possible by placing the inductor and the diode very close to the
power switching IC (only for switching power supply). This is done in order to reduce the
radiated field (noise) at the switching frequency (usually 100-500 kHz).
The use of a good common ground plane is suggested.
The placement of the power supply on the board must be done in a way to guarantee that
the high current return paths in the ground plane are not overlapped with any noise
sensitive circuitry such as the microphone amplifier/buffer or earphone amplifier.
The power supply input cables must be kept separate from noise sensitive lines such as
microphone/earphone cables.
The antenna connection and board layout design are the most important parts in the full product
design and they strongly reflect on the product’s overall performance. Read carefully and follow the
requirements and the guidelines for a proper design.
The antenna for a Telit CE910 device must fulfill the following requirements:
CE910 Specifications
Frequency range
Depending on the frequency band(s) provided by the
network operator, the customer must use the most suitable
antenna for that/those band(s)
Bandwidth
70 MHz in CDMA BC0
140 MHz in CDMA BC1
Gain
Gain < 5.12dBi in CDMA BC0
Gain < 6.12dBi in CDMA BC1
Impedance
50 Ohm
Input power
> 24.5dBm Average Power in CDMA
VSWR absolute max
≤ 5:1 (Limit to avoid permanent damage)
VSWR recommended
≤ 2:1 (Limit to fulfill all regulatory requirement)
When using the Telit CE910, since there’s no antenna connector on the module, the antenna must be
connected to the CE910 antenna pad (K1) by means of a transmission line implemented in the PCB.
In the case that the antenna is not directly connected at the antenna pad of the CE910, then a PCB line
is required. This transmission line shall fulfill the following requirements:
Antenna Line on PCB Requirements
Characteristic Impedance
50Ohm
Max Attenuation
0.3dB
Coupling with other signals shall be avoided
Cold End (Ground Plane) of antenna shall be equipotential to the CE910 ground pads
Furthermore if the device is developed for the US and/or Canada market, it must comply with the
FCC and/or IC approval requirements:
This device is to be used only for mobile and fixed application. The antenna(s) used for this
transmitter must be installed to provide a separation distance of at least 20 cm from all persons and
must not be co-located or operating in conjunction with any other antenna or transmitter. End-Users
must be provided with transmitter operation conditions for satisfying RF exposure compliance. OEM
The CE910 module includes a Universal Serial Bus (USB) transceiver, which operates at USB Fullspeed (12Mbits/sec) and slave mode only.
It is compliant with the USB 2.0 specification and can be used for diagnostic monitoring, control and
data transfers.
The table below describes the USB interface signals:
Pin
Signal
I/O
Function
Type
B15
USB_D+
I/O
USB differential Data(+)
C15
USB_D-
I/O
USB differential Data(+)
A13
VUSB
I
Power for the internal USB transceiver
5V
The USB_DPLUS and USB_DMINUS signals have a clock rate of 60MHz. The signal traces should
be routed carefully. Trace lengths, number of vias and capacitive loading should be minimized. The
impedance value should be as close as possible to 100 Ohms differential.
The table below describes the VUSB specification:
Parameter
Min
Max
Input voltage
4.4V
5.0V
Input current
50mA
-
WARNING:
Consider a mechanical design and a low-capacitance ESD protection device to protect CE910 or
customer specific requirements from ESD event to USB lines (B15, C15 and A13).
In order to interface the Telit CE910 with a PC com port or a RS232 (EIA/TIA-232) application, a
level translator is required. This level translator must:
Invert the electrical signal in both directions
Change the level from 0/1.8V to +/-15V
Actually, the RS232 UART 16450, 16550, 16650 & 16750 chipsets accept signals with lower levels
on the RS232 side (EIA/TIA-562), allowing a lower voltage-multiplying ratio on the level translator.
Note that the negative signal voltage must be less than 0V and hence some sort of level translation is
always required. The simplest way to translate the levels and invert the signal is by using a single chip
level translator. There is a multitude of them, differing in the number of drivers and receivers and in
the levels (be sure to get a true RS232 level translator not a RS485 or other standards). By convention
the driver is the level translator from the 0-1.8V UART to the RS232 level. The receiver is the
translator from the RS232 level to 0-1.8V UART.
In order to translate the whole set of control lines of the UART you will need:
5 drivers
3 receivers
An example of RS232 level adaption circuitry could be accomplished using a MAXIM transceiver
(MAX218). In this case the chipset is capable of translating directly from 1.8V to the RS232 levels
(Example on 4 signals only).
The RS232 serial port lines are usually connected to a DB9 connector with the following layout:
The CE910 module is provided by a set of Digital Input / Output pins
Input pads can only be read; they report the digital value (high or low) present on the pad at the read
time.
Output pads can only be written or queried and set the value of the pad output.
An alternate function pad is internally controlled by the CE910 firmware and acts depending on the
function implemented.
The following GPIOs are available on the CE910:
Pin
Signal
I/O
Function
Type
Default
State
Note
C8
GPIO_01
I/O
Configurable GPIO
CMOS 1.8V
INPUT
Alternate function
STAT_LED
C9
GPIO_02
I/O
Configurable GPIO
CMOS 1.8V
INPUT
C10
GPIO_03
I/O
Configurable GPIO
CMOS 1.8V
INPUT
C11
GPIO_04
I/O
Configurable GPIO
CMOS 1.8V
INPUT
B14
GPIO_05
I/O
Configurable GPIO
CMOS 1.8V
INPUT
C12
GPIO_06
I/O
Configurable GPIO
CMOS 1.8V
INPUT
C13
GPIO_07
I/O
Configurable GPIO
CMOS 1.8V
INPUT
K15
GPIO_08
I/O
Configurable GPIO
CMOS 1.8V
INPUT
L15
GPIO_09
I/O
Configurable GPIO
CMOS 1.8V
INPUT
G15
GPIO_10
I/O
Configurable GPIO
CMOS 1.8V
INPUT
The GPIO pads, when used as outputs, can drive 1.8V CMOS digital devices or compatible hardware.
When set as outputs, the pads have a push-pull output and therefore the pull-up resistor may be
omitted.
The STAT_LED pin status shows information on the network service availability and Call status. In
the CE910 modules, the STAT_LED usually needs an external transistor to drive an external LED.
Because of the above, the status indicated in the following table is reversed with respect to the pin
status:
LED status
Device Status
Permanently off
Device off
Fast blinking
(Period 1s, Ton 0,5s)
Net search / Not registered / turning off
Slow blinking
(Period 3s, Ton 0,3s)
Registered full service
Permanently on
a call is active
A schematic example could be:
The on board ADC is 12-bit converter. It is able to read a voltage level in the range of 0 ~ 1.2 volts
applied on the ADC pin input and store and convert it into 12 bit word.
Parameter
Min
Max
Units
Input Voltage range
0
1.2
Volt
AD conversion
-
12
bits
Resolution
-
< 1
mV
Input Resistance
1 Mohm
The CE910 provides one Analog to Digital Converter.
The input line is named as ADC_IN1 and it is available on pad B1.
An AT command is available to use the ADC function.
The command is AT#ADC=1,2. The read value is expressed in mV
Refer to SW User Guide or AT Commands Reference Guide for the full description of this function.
144 pins
< Top View >
In order to easily rework the CE910 it is suggested to consider having a 1.5 mm placement inhibit
area around the module on the application.
It is also suggested, as a common rule for an SMT component, to avoid having a mechanical part of
the application in direct contact with the module.
NOTE:
In the customer application, the region under WIRING INHIBIT (see figure) must be clear from
signal or ground paths.
The CE910 modules are packaged on trays of 20 pieces each. These trays can be used in SMT
processes for pick & place handling.
One of the following options should be chosen in the design of host system in order to download or
upgrade the Telit’s software and debug CE910 when CE910 is already mounted on a host system.
CASE I:
Users who use both of UART and USB interfaces to communicate with CE910
- Must implement a download method in a host system for upgrading CE910 when it’s mounted.
CASE II:
Users who use USB interface only to communicate with CE910
- Must arrange UART port in a host system for debugging or upgrading CE910 when it’s mounted.
CASE III:
Users who use UART interface only to communicate with CE910
- Must arrange USB port in a host system for debugging or upgrading CE910 when it’s mounted.
The user must refer to below information to meet the FCC/IC's RF exposure rules and regulations
when they design:
Lors de la conception, l'utilisateur doit se référer à l'information ci-dessous pour remplir les
conditions et règlementations FCC/IC' d’exposition aux ondes RF:
• The system antenna(s) used for this transmitter must be installed to provide a separation
distance of at least 20 cm from all the persons and must not be co-located or operating in
conjunction with any other antenna or transmitter.
Le système d’antenne utilisé pour cet émetteur doit être installé à une distance d’au moins de
20 cm de toute personne et ne doit pas être co-implanté ou opérer en même temps que
n'importe quelle autre antenne ou émetteur.
• The system antenna(s) used for this module must not exceed 5.12dBi in CDMA BC0 and
6.12dBi in CDMA BC1 for mobile and fixed or mobile operating configurations.
Le système d’ antenne utilisé pour ce module ne doit pas dépasser 5.12dBi en CDMA BC0 et
6.12dBi en CDMA BC1 pour des configurations mobiles et fixes ou des configurations
opérant en mode mobile.
• Users and installers must be provided with antenna installation instructions and transmitter
operating conditions for satisfying RF exposure compliance.
Manufacturers of mobile, fixed or portable devices incorporating this module are advised to
clarify any regulatory questions and to have their complete product tested and approved for
FCC compliance.
Les instructions d’installation de l’antenne ainsi que les conditions de fonctionnement de
l’émetteur doivent être remis aux utilisateurs et aux installateurs conformément à la
règlementation sur l’exposition aux ondes rf. Des fabricants des dispositifs mobiles, fixes ou
portables incorporant ce module sont invités à clarifier toutes les questions de normalisation
et à avoir leur produit complètement testé pour la mise en conformité FCC.
• CE910 is intended for the OEM integrator only.
CE910 est prévu pour l'intégrateur OEM seulement.
• The user is required to see the Grant of Equipment document for other restrictions.
L'utilisateur doit se referrer au document « Grant of equipment » pour d'autres restrictions.
• CE910 must be operated and used with a locally approved access point.
CE910 doit être actionné et utilisé avec un point d'accès localement approuvé.
• The radio transmitter(IC ID: 5131A-CE910DUAL) has been approved by Industry Canada to
operate with the antenna type listed in this manual with the maximum permissible gain and
required antenna impedance for each antenna type 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.
L'émetteur radio (identification d'IC : 5131A-CE910DUAL) a été approuvé par Industry
Canada pour fonctionner avec le type d'antenne énuméré dans ce manuel avec le gain autorisé
maximum et l'impédance d’antenne exigée pour chaque type d'antenne indiqué. Les types
d'antenne non inclus dans cette liste, ayant un gain supérieur au gain maximum indiqué pour
ce type, sont strictement interdits pour un usage avec ce dispositif.
The following regulatory and safety notices must be published in documentation supplied to the
end user of the product or system incorporating an adapter in compliance with local regulations.
• Host system including CE910 must be labeled with
“Contains transmitter module with
FCC ID: RI7CE910 and IC ID: 5131A-CE910DUAL”
Les notices de normalisation et de sécurité doivent se trouver dans la documentation fournie à
l'utilisateur du produit ou du système incorporant un adaptateur conforme aux règlementations
locales.
• Le système hôte comprenant CE910 doit être marqué avec « Contient un module
émetteur avec IDENTIFICATION FCC : RI7CE910 et identification IC : 5131ACE910DUAL »
READ CAREFULLY
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 has to be avoided in the following areas:
Where it can interfere with other electronic devices in environments such as hospitals, airports,
aircrafts, etc.
Where there is risk of explosion such as gasoline stations, oil refineries, etc. It is the
responsibility of the user to enforce the country’s regulations and the specific environmental
regulation.
Do not disassemble the product; any evidence of tampering will compromise the warranty validity.
Follow the instructions of the hardware user guides for a correct wiring of the product. The product
has to be supplied with a stabilized voltage source and the wiring has to conform to the security and
fire prevention regulations. The product has to be handled with care, avoiding any contact with the
pads because electrostatic discharges may damage the product itself.
The system integrator is responsible for the functioning of the final product; therefore, care has to be
taken with the external components of the module as well as of any project or installation issue
because of the risk of disturbing the CDMA network or external devices or having impact on security.
Should there be any doubt, please refer to the technical documentation and the regulations in force.
Every module has to be equipped with a proper antenna with specific characteristics. The antenna has
to be installed with care in order to avoid any interference with other electronic devices and has to
guarantee a minimum distance from the body (20 cm). In case this requirement cannot be satisfied,
the system integrator has to assess the final product against SAR regulations.
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