Users Manual

FCC ID: N7NMC7750-L

Users Manual

Download: PDF
FCCID_1670775

AirPrime MC7750
     Hardware Integration Guide




                             2130114
                            Rev 3.0.3




                                                                                                     Preface



Important          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
Notice             totally lost. Although significant delays or losses of data are rare when wireless
                   devices such as the Sierra Wireless modem are used in a normal manner with a
                   well-constructed network, the Sierra Wireless 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. Sierra Wireless accepts no responsibility for damages
                   of any kind resulting from delays or errors in data transmitted or received using
                   the Sierra Wireless modem, or for failure of the Sierra Wireless modem to
                   transmit or receive such data.


Safety and         Do not operate the Sierra Wireless modem in areas where blasting is in progress,
                   where explosive atmospheres may be present, near medical equipment, near life
Hazards
                   support equipment, or any equipment which may be susceptible to any form of
                   radio interference. In such areas, the Sierra Wireless modem MUST BE
                   POWERED OFF. The Sierra Wireless modem can transmit signals that could
                   interfere with this equipment.
                   Do not operate the Sierra Wireless modem in any aircraft, whether the aircraft is
                   on the ground or in flight. In aircraft, the Sierra Wireless modem MUST BE
                   POWERED OFF. When operating, the Sierra Wireless 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. Sierra Wireless modems may be used at this time.


                   The driver or operator of any vehicle should not operate the Sierra Wireless
                   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.


Limitation of      The information in this manual is subject to change without notice and does not
                   represent a commitment on the part of Sierra Wireless. SIERRA WIRELESS AND
Liability
                   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 SIERRA WIRELESS
                   PRODUCT, EVEN IF SIERRA WIRELESS 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 Sierra Wireless and/or its
                   affiliates aggregate liability arising under or in connection with the Sierra Wireless
                   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 Sierra Wireless
                   product.




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Patents                   This product may contain technology developed by or for Sierra Wireless Inc.
                          This product includes technology licensed from QUALCOMM®.
                          This product is manufactured or sold by Sierra Wireless Inc. or its affiliates under
                          one or more patents licensed from InterDigital Group.


Copyright                 © 2012 Sierra Wireless. All rights reserved.


Trademarks                Sierra Wireless™, AirPrime™, Watcher™ and the Sierra Wireless logo are
                          trademarks of Sierra Wireless.
                          Windows® is a registered trademark of Microsoft Corporation.
                          Other trademarks are the property of their respective owners.


Contact
Information               Sales Desk:           Phone:         1-604-232-1488
                                                Hours:         8:00 AM to 5:00 PM Pacific Time
                                                E-mail:        sales@sierrawireless.com
                          Post:                 Sierra Wireless
                                                13811 Wireless Way
                                                Richmond, BC
                                                Canada          V6V 3A4
                          Fax:                  1-604-231-1109
                          Web:                  www.sierrawireless.com

                          Consult our website for up-to-date product descriptions, documentation,
                          application notes, firmware upgrades, troubleshooting tips, and press releases:
                          www.sierrawireless.com


Revision
History

Revision   Release date      Changes
number

3.0.1      January 2011      •    MC7750 FCC submission

3.0.2      March 2011        •    Revised regulatory details

3.0.3      March 2011        •    Revised regulatory details (Simultaneous Transmission Evaluation)




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          Contents
          Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
              The Universal Development Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
              Required connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7


          Power Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
              Overview of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
                Power signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
                Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
                Electrostatic discharge (ESD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
              Module power states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
                Disconnected state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
                Off state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
                Sleep state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
                Normal state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
                Low power state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11


          RF Integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
              RF connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
              Ground connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
                 Shielding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
                 Antenna and cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
              Interference and sensitivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
                  Power supply noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
                  Interference from other wireless devices . . . . . . . . . . . . . . . . . . . . . . . . . 15
                  Device-generated RF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16


          Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
              Important notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
              Safety and hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
              Important compliance information for North American users . . . . . . . . . . . . 18


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               OEM integration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
                 Application of regulatory guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
                 OEM device classification process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19


          Acronyms and Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23


          Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25




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          1: Introduction                                                                                               1
                                          Sierra Wireless’ AirPrime Intelligent Embedded Modules form the
                                          radio component for the products in which they are embedded.
                                          The AirPrime MC7750 is available for use on LTE, CDMA, and GSM
                                          networks.

                                          Note: An understanding of network technology, and experience in integrating
                                          hardware components into electronic equipment is assumed.



                                          Purpose of this guide
                                          This guide addresses issues that affect the integration of AirPrime
                                          embedded modules into host products, and includes design
                                          recommendations for the host products.


                                          The Universal Development Kit
                                          Sierra Wireless manufactures a Universal Development Kit (UDK)
                                          that facilitates all phases of the integration process.
                                          This kit is a hardware development platform that is designed to
                                          support AirPrime Mini Card embedded modules. It contains the
                                          hardware components that are typically necessary for evaluating and
                                          developing with the module, including:
                                          •   Development board
                                          •   Cables
                                          •   Antennas
                                          •   Other accessories
                                          For instructions on setting up the UDK, see PCI Express Mini Card
                                          Dev Kit Quick Start Guide (Document 2130705).


                                          Required connectors
          Note: Contact vendors           When integrating AirPrime embedded modules into your host device,
          before choosing your            you need the following connector types:
          connectors—the numbers          •   RF cables that mate with Hirose U.FL connectors (model
          included here are for               U.FL #CL331-0471-0-10). Modules include one to three
          reference only. Choose              connector jacks depending on individual module support for
          connectors that are appro-          diversity or GPS functionality.
          priate to your design.
                                          •   Industry-standard mating connector for 52-pin EDGE—some
                                              manufacturers include Tyco, Foxconn, and Molex. For example,
                                              the connector used on the Mini Card Dev Kit board is a Molex
                                              67910-0001.



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                       •   Industry-standard USIM connector—the actual connector you use depends
                           on how your device exposes the USIM socket. For example, the USIM
                           connector used on the Mini Card Dev Kit board is an ITT CCM03-3518.




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          2: Power Interface                                                                       2
                       Overview of operation
                       AirPrime embedded modules are designed to use a 3.3V (nominal)
                       power supply provided by the host. It is the host’s responsibility to
                       provide safe and continuous power to the module at all times; the
                       module does NOT have an independent power supply, or protection
                       circuits to guard against electrical issues.
                       The module’s power state is controlled by the host’s assertion/
                       deassertion of W_Disable#. The module also monitors its supply
                       voltage and requests shutdown if the supply is insufficient.

                       Power signals
                       The module must be connected to a 3.3V power supply, as described
                       in PCI Express Mini Card Electromechanical Specification Revision
                       1.1.
                       For detailed pinout and voltage/current requirements, see the
                       Product Specification Document for your AirPrime embedded
                       module.


                       Power supply
                       Table 2-1: Power supply requirements
                                  Requirement type                        Value

                           Power supply                          3.3 V (nominal)

                           Voltage range                         3.0–3.6 V

                           Maximum peak current (worst-case) 2.75 A



                       Electrostatic discharge (ESD)
                       You are responsible for ensuring that the host has adequate ESD
                       protection on digital circuits and antenna ports as described by the
                       following specifications:
                       •    (Operational) RF port (antenna launch and RF connector): IEC-
                            61000-4-2—Level (Electrostatic Discharge Immunity Test)
                       •    (Non-operational) Host connector interface: JESD22-A114-B +/-
                             1kV Human Body Model and JESD22-C101 +/- 125 V Charged
                            Device Model
                       This guide provides specific recommendations where needed,
                       however, the level of protection required depends on your application.




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                               Note: ESD protection is highly recommended for the USIM connector at the point where
                               the contacts are exposed, and for any other signals from the host interface that would be
                               subjected to ESD by the user of the product.




                               Module power states
Note: The module unit          The module has five power states:
defaults to the Normal         •   Disconnected
state when VCC is first            No power to the module.
applied in the absence of
                               •   Off
W_Disable# control.
                                   Power to the module, but the module is powered off.
                               •   Sleep
                                   State between calls or data connections. Module cycles between wake and
                                   sleep.
                               •   Normal
                                   The module is active. Several modes are possible (Receive, Transmit, Sleep,
                                   Shutdown).
                               •   Low power (“airplane mode”)
                                   The module is active, but RF is disabled.
                               State machines are implemented in the module to monitor the power supply and
                               operating temperature.


                               Disconnected state

Note: The difference           This state occurs when there is no power to the module—the host power source
between the Discon-            is disconnected from the module and all voltages associated with the module are
nected and Off states is       at 0 V.
that, in the Off state, the
                               Whether the host device is also powered off depends on the power rail design:
module is still connected to
the power source and           •   If the connection between the power rail and the module is controlled by the
draws minimal current.             host, the host can stay powered on and cut the power to put the module into
                                   the disconnected state.
                               •   If the power rail is shared between the host device and the module, the
                                   module is powered off when the host is powered off.


                               Off state
                               In this state, the host is powered up and the module is powered down (but still
                               connected to the power source).
                               The host keeps the module powered off by driving the W_Disable# signal low. In
                               this state, the module draws minimal current.




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                                                                                              Power Interface



                            Sleep state
                            In this state, the host and module are powered up, and the module cycles
                            between wake (polling the network) and sleep, at network provider-determined
                            interval. This is the normal state of the module between calls or data connections.

Note: This is the default   Normal state
state when VCC is first
applied in the absence of   This is the active state of the module. In this state:
W_Disable# control.         •   The module is fully powered.
                            •   The module is capable of placing/receiving calls or establishing data connec-
                                tions on the wireless network.
                            •   The USB interface is fully active.


                            Low power state
                            In this state (also called “airplane mode”), RF (both Rx and Tx) is disabled in the
                            module, but the USB interface is still active.




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          3: RF Integration                                                                                3
                       The AirPrime MC7750 operates on the following frequencies:

                         Table 3-1: Supported RF bands (MC7750)
                                                                                      Frequency
                                Technology                       Band
                                                                                     range (MHz)

                          LTE                         13                          Tx: 777–787
                                                                                  Rx: 746–756

                          WCDMAa                      1 (UMTS 2100)               Tx: 1920–1980
                                                                                  Rx: 2110–2170

                                                      2 (UMTS 1900)               Tx: 1850–1910
                                                                                  Rx: 1930–1990

                                                      5 (UMTS 850)                Tx: 824–849
                                                                                  Rx: 869–894

                                                      8 (UMTS 900)                Tx: 880–915
                                                                                  Rx: 925–960

                          GSM                         GSM 850                     Tx: 824–849
                                                                                  Rx: 869–894

                                                      EGSM 900                    Tx: 880–915
                                                                                  Rx: 925–960

                                                      DCS 1800                    Tx: 1710–1785
                                                                                  Rx: 1805–1880

                                                      PCS 1900                    Tx: 1850–1910
                                                                                  Rx: 1930–1990

                          CDMA                        PCS                         Tx: 1850–1910
                                                                                  Rx: 1930–1990

                                                      Cellular                    Tx: 824–849
                                                                                  Rx: 869–894

                          GPS                         GPS                         1575.42

                            a. WCDMA channel spacing is 5 MHz, but this can be adjusted to optimize
                               performance in a particular deployment scenario.




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                             RF connection
                             When attaching an antenna to the module:

Note: To disconnect the      •   Use a Hirose U.FL connector (model U.FL #CL331-0471-0-10) to attach an
antenna, make sure you           antenna to a connection point on the module.
use the Hirose U.FL          •   Match coaxial connections between the module and the antenna to 50 
connector removal tool
                             •   Minimize RF cable losses to the antenna; the recommended maximum cable
(P/N UFL-LP-N-2(01)) to
                                 loss for antenna cabling is 0.5 dB.
prevent damage to the
module or coaxial cable
assembly.
                             Ground connection
                             When connecting the module to system ground:
                             •   Prevent noise leakage by establishing a very good ground connection to the
                                 module through the host connector.
                             •   Connect to system ground using the two mounting holes at the top of the
                                 module.
                             •   Minimize ground noise leakage into the RF.
                                 Depending on the host board design, noise could potentially be coupled to
                                 the module from the host board. This is mainly an issue for host designs that
                                 have signals traveling along the length of the module, or circuitry operating at
                                 both ends of the module interconnects.


                             Shielding
                             The module is fully shielded to protect against EMI and to ensure compliance with
                             FCC Part 15 - “Radio Frequency Devices” (or equivalent regulations in other
                             jurisdictions).

                             Note: The module shields must NOT be removed.


Note: Values in this guide   Antenna and cabling
are taken from the appro-
priate product specifi-      When selecting the antenna and cable, it is critical to RF performance to match
cation documents (PSDs)      antenna gain and cable loss.
—in the case of a
discrepancy between this     Choosing the correct antenna and cabling
document and the relevant
PSD, use the value listed    Consider the following points for proper matching of antennas and cabling:
in the PSD.                  •   The antenna (and associated circuitry) should have a nominal impedance of
                                 50  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.




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                                                                                               RF Integration



                             Developing custom antennas
                             Consider the following points when developing custom-designed antennas:
                             •   A skilled RF engineer should do the development to ensure that the RF
                                 performance is maintained.
                             •   Identify the bands that need to be supported.

                             Determining the antenna’s location
                             Consider the following points when deciding where to put the antenna:
                             •   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 perfor-
                                 mance.
                             •   Connecting cables between the module and the antenna must have 50 
                                 impedance. If the impedance of the module is mismatched, RF performance
                                 is reduced significantly.
                             •   Antenna cables should be routed, if possible, away from noise sources
                                 (switching power supplies, LCD assemblies, etc.). If the cables are near the
                                 noise sources, the noise may be coupled into the RF cable and into the
                                 antenna.

Note: The MC7750 is          Interference and sensitivity
based on ZIF (Zero Inter-
mediate Frequency)           Several sources of interference can affect the RF performance of the module
technologies. When           (RF desense). Common sources include power supply noise and device-
performing EMC (Electro-     generated RF.
magnetic Compatibility)
tests, there are no IF       RF desense can be addressed through a combination of mitigation techniques
(Intermediate Frequency)     and radiated sensitivity measurement.
components from the
module to consider.          Power supply noise
                             Noise in the power supply can lead to noise in the RF signal.

Note: Values in this guide   The power supply ripple limit for the module is no more than 200 mVp-p 1 Hz to
are taken from the           100 kHz. This limit includes voltage ripple due to transmitter burst activity.
MC7750 product technical
specification (PTS) —in
the case of a discrepancy    Interference from other wireless devices
between this document
and the PTS, use the value
                             Wireless devices operating inside the host device can cause interference that
                             affects the module.
listed in the PTS.
                             To determine the most suitable locations for antennas on your host device,
                             evaluate each wireless device’s radio system, considering the following:
                             •   Any harmonics, sub-harmonics, or cross-products of signals generated by
                                 wireless devices that fall in the module’s Rx range may cause spurious
                                 response, resulting in decreased Rx performance.




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                              •   The Tx power and corresponding broadband noise of other wireless devices
                                  may overload or increase the noise floor of the module’s receiver, resulting in
                                  Rx desense.
                              The severity of this interference depends on the closeness of the other antennas
                              to the module’s antenna. To determine suitable locations for each wireless
                              device’s antenna, thoroughly evaluate your host device’s design.


                              Device-generated RF

Note: The module can          All electronic computing devices generate RF interference that can negatively
cause interference with       affect the receive sensitivity of the module.
other devices such as
                              The proximity of host electronics to the antenna in wireless devices can contribute
hearing aids and on-board
                              to decreased Rx performance. Components that are most likely to cause this
speakers.
                              include:
Wireless devices such as      •   Microprocessor and memory
AirPrime embedded             •   Display panel and display drivers
modules transmit in bursts    •   Switching-mode power supplies
(pulse transients) for set
durations (RF burst
frequencies). Hearing aids
and speakers convert
these burst frequencies
into audible frequencies,
resulting in audible noise.




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          A: Regulatory Information                                                                  A
                        Important notice
                        Because of 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
                        Sierra Wireless modem are used in a normal manner with a well-
                        constructed network, the Sierra Wireless 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. Sierra Wireless
                        and its affiliates accept no responsibility for damages of any kind
                        resulting from delays or errors in data transmitted or received using
                        the Sierra Wireless modem, or for failure of the Sierra Wireless
                        modem to transmit or receive such data.


                        Safety and hazards
                        Do not operate your MC7750 modem:
                        •   In areas where blasting is in progress
                        •   Where explosive atmospheres may be present including
                            refuelling points, fuel depots, and chemical plants
                        •   Near medical equipment, life support equipment, or any
                            equipment which may be susceptible to any form of radio inter-
                            ference. In such areas, the MC7750 modem MUST BE
                            POWERED OFF. Otherwise, the MC7750 modem can transmit
                            signals that could interfere with this equipment.
                        In an aircraft, the MC7750 modem MUST BE POWERED OFF.
                        Otherwise, the MC7750 modem can transmit signals that could
                        interfere with various onboard systems and may be dangerous to the
                        operation of the aircraft or disrupt the cellular network. Use of a
                        cellular phone in an aircraft is illegal in some jurisdictions. Failure to
                        observe this instruction may lead to suspension or denial of cellular
                        telephone services to the offender, or legal action or both.
                        Some airlines may permit the use of cellular phones while the aircraft
                        is on the ground and the door is open. The MC7750 modem may be
                        used normally at this time.




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                       Important compliance information for
                       North American users
                       The MC7750 modem has been granted modular approval for mobile applications.
                       Integrators may use the MC7750 modem in their final products without additional
                       FCC/IC (Industry Canada) certification if the following conditions are met.
                       Otherwise, additional FCC/IC approvals must be obtained.
                       •   Although the MC7750 modem has been granted module approval, there are
                           many conditions attached to this approval; final host integration will likely
                           require additional testing. Detailed guidelines are described in OEM device
                           classification process on page 19 to assist OEM module integrators in deter-
                           mining the extent of additional testing necessary to comply with FCC require-
                           ments.
                       •   The end product with an embedded MC7750 modem must be evaluated for
                           simultaneous transmission requirements. See Simultaneous transmission
                           evaluation on page 20 for details.
                       •   A user manual with the end product must clearly indicate the operating
                           requirements and conditions that must be observed to ensure compliance
                           with current FCC / IC RF exposure guidelines. See OEM product instruction
                           manual content on page 21 for details.
                       •   To comply with FCC / IC regulations limiting both maximum RF output power
                           and human exposure to RF radiation, the maximum antenna gain including
                           cable loss in a mobile-only exposure condition must not exceed:
                             · Part 22 (Cellular): 7.0 dBi
                             · Part 24 (PCS): 3.0 dBi
                             · Part 27 (Band 13): 9.0 dBi
                       •   A label must be affixed to the outside of the end product into which the
                           MC7750 modem is incorporated, with a statement similar to the following:
                           · This device contains FCC ID: N7NMC7750.
                             Contains transmitter module IC: 2417C-MC7750 where 2417C-MC7750
                             is the module’s certification number.
                       The end product with an embedded MC7750 modem may also need to pass the
                       FCC Part 15 unintentional emission testing requirements and be properly
                       authorized per FCC Part 15.
                       Note: If this module is intended for use in a portable device, you are responsible
                       for separate approval to satisfy the SAR requirements of FCC Part 2.1093 and IC
                       RSS-102.


                       OEM integration

                       Application of regulatory guidelines
                       Because ‘near-body’ devices (handhelds, laptops, tablets, scanners, etc.) vary
                       widely in design features, physical configurations, and use-models, module
                       integrators shall follow the guidelines below regarding device classification and
                       simultaneous transmission, and seek guidance from their preferred regulatory


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                   test lab to determine how regulatory guidelines will impact the device compliance.
                   Proactive management of the regulatory process will minimize unexpected
                   schedule delays and costs due to unplanned testing activities.

                   Device classifications
                   The OEM integrator must determine the minimum distance required between their
                   device and the user’s body.
                   The FCC provides device classification definitions to assist in making the correct
                   determination. Note that these classifications are guidelines only; strict
                   adherence to a device classification may not satisfy the regulatory requirement as
                   near-body device design details may vary widely.
                   FCC definitions:
                       Portable: (§2.1093)—A portable device is defined as a transmitting device
                       designed to be used so that the radiating structure(s) of the device is/are
                       within 20 centimeters of the body of the user.
                       Mobile: (§2.1091)(b)—A mobile device is defined as a transmitting device
                       designed to be used in other than fixed locations and to generally be used in
                       such a way that a separation distance of at least 20 centimeters is normally
                       maintained between the transmitter’s radiating structure(s) and the body of
                       the user or nearby persons.
                   Per §2.1091d(d)(4) In some cases (for example, modular or desktop transmitters),
                   the potential conditions of use of a device may not allow easy classification of that
                   device as either Mobile or Portable. In these cases, applicants are responsible for
                   determining minimum distances for compliance for the intended use and
                   installation of the device based on evaluation of either specific absorption rate
                   (SAR), field strength, or power density, whichever is most appropriate.


                   OEM device classification process
                   The primary factor in determining whether a device will be classified as a Portable
                   product or as a Mobile product is antenna separation distance (body to radiating
                   antenna element).
                   The review process between the OEM module integrator and the preferred
                   regulatory test lab is a crucial step in determining the appropriate device
                   classification, as it is impractical for Sierra Wireless to define all possible
                   combinations of design features, antennas, physical configurations, and use-
                   models.
                   1. Perform a device review with the preferred regulatory test lab to confirm
                      device classification.
                   2. Determine the Certification type (Standalone or C2PC from an existing
                      Modular Grant).
                   3. If the device classification is:
                      · Portable: Preferred regulatory test lab to determine if a PBA or KDB is
                         required.
                      · Mobile: Preferred regulatory test lab to determine if a PBA is required.
                       (Note: A PBA or KDB will likely be required for new technologies such as LTE
                       or WiMAX.)

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                         4. If the device classification is Mobile, confirm the antenna does not violate the
                            Gain Limits specific to the module grant as specified in Important compliance
                            information for North American users on page 18.
                         5. Outline and execute a test plan with the preferred regulatory test lab.
                            Testing is likely to include some or all of Parts 15, 22, 24, 27, and either SAR
                            (for Portable devices) or MPE (for Mobile devices).
                         6. Follow product labeling requirements as described in Important compliance
                            information for North American users on page 18. (Ref §2.925)
                         7. Include the OEM product instruction manual content on page 21 boilerplate
                            text within the host product’s instruction manual.

                         Simultaneous transmission evaluation
                         The MC7750 modem has been evaluated for collocated transmission and may
                         transmit simultaneously with other collocated radio transmitters within a host
                         device provided the following conditions are met:
                         •   All antennas (MC7750 transmit antenna and other collocated transmit
                             antennas) provide > 20 cm separation distance to the end user (FCC mobile
                             categorization), and
                         •   The collocated transmitter maximum average transmit power and maximum
                             antenna gain do not exceed the levels listed in Table A-1 per the MC7750
                             platform module-level maximum permissible exposure (MPE) report, or the
                             power defined in a subsequently issued host-specific MPE report.

          Table A-1: Summary of Maximum Conducted Power and Antenna Gain
                Device           Technology      Frequency      Conducted Power       Antenna Gain Limit
                                                   (MHz)          Limit (dBm)               (dBi)

                 MC7750          GPRS/EDGE         824–849               33                    5.0

                                    UMTS           824–849               24                    5.0

                                    CDMA           824–849               25                    5.0

                                 GPRS/EDGE       1850–1910               30                    3.0

                                    UMTS         1850–1910               24                    3.0

                                    CDMA         1850–1910               25                    3.0

                                     LTE           777–787               24                    7.0

             Collocated radio       WLAN         2400–2500               29                    4.0
               transmitters
                                    WLAN         5150–5850               29                    4.0

                                   WiMAX         2300–2400               27                    5.0

                                   WiMAX         2500–2700               27                    5.0

                                   WiMAX         3300–3800               27                    5.0

                                      BT         2400–2500               15                    5.0




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                   OEM product instruction manual content
                   Consistent with §2.909(a), the following text must be included within the user’s
                   manual or operator instruction guide for the final commercial product. (OEM-
                   specific content is displayed in italics.)
                   Operating Requirements and Conditions
                   The design of (Product Name) complies with U.S. Federal Communications Commission
                   (FCC) guidelines respecting safety levels of radio frequency (RF) exposure for (OEM to
                   insert device classification: Mobile or Portable) devices.
                   FCC ID: (Include Standalone FCC ID or Module FCC ID as required)

                   Note: Include the following RF Exposure statement for Mobile devices only.


                   RF Exposure - This device is only authorized for use in a mobile application. At least
                   20 cm (8 inches) of separation distance between the (Product Name) device and the user's
                   body must be maintained at all times.

                   Note: Include the following RF Exposure statement for Portable devices only.


                   RF Exposure - This device has been tested for compliance with FCC RF exposure limits
                   in a portable configuration. At least (Insert Required Separation Distance from RF
                   Exposure Evaluation) cm of separation distance between the (Product Name) device and
                   the user's body must be maintained at all times. This device must not be used with any
                   other antenna or transmitter that has not been approved to operate in conjunction with this
                   device.

                   Note: Always include the following Caution statement.


                   CAUTION: Any changes or modifications not expressly approved by (Company Name)
                   or Sierra Wireless could void the user’s authority to operate the equipment.

                   Note: Include the following statement if Part 15 of the FCC Rules is required. Integration
                   into host devices containing unlicensed devices may require additional comments in this
                   section. The OEM should confirm the extent of their user’s guide content with their
                   preferred regulatory test lab.


                   Note: This equipment has been tested and found to comply with the limits for a (OEM to
                   insert device type: Class A or Class B) digital device, pursuant to Part 15 of the FCC
                   Rules. (OEM must follow Part 15 guidelines (§15.105 and §15.19) to determine
                   additional statements required in this section for their device class)




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          B: Acronyms and Definitions                                                                            B
                                   .

            Table B-1: Acronyms and definitions
              Acronym or term          Definition

             AGC                    Automatic Gain Control

             BER                    Bit Error Rate - a measure of receive sensitivity

             BLER                   Block Error Rate

             Call Box               Base Station Simulator - Agilent E8285A or 8960, Rohde & Schwarz
                                    CMU200

             CDMA                   Code Division Multiple Access

             dB                     Decibel = 10 x log10 (P1/P2)
                                    P1 is calculated power; P2 is reference power
                                    Decibel = 20 x log10 (V1/V2)
                                    V1 is calculated voltage, V2 is reference voltage

             dBm                    Decibels, relative to 1 mW - Decibel(mW) = 10 x log10 (Pwr (mW)/1mW)

             DUT                    Device Under Test

             EDGE                   Enhanced Data rates for GSM Evolution

             EM                     Embedded Module

             ESD                    ElectroStatic Discharge

             FER                    Frame Error Rate - a measure of receive sensitivity

             GPRS                   General Packet Radio Services

             GPS                    Global Positioning System

             GSM                    Global System for Mobile communications

             Hz                     Hertz = 1 cycle/second

             inrush current         Peak current drawn when a device is connected or powered on

             IS-2000                3G radio standards for voice and data (CDMA only)

             IS-95                  2G radio standards targeted for voice (cdmaONE)

             LDO                    Low Drop Out - refers to linear regulator

             MHz                    MegaHertz = 10E6 Hertz (Hertz = 1 cycle/second)

             MIO                    Module Input/Output

             MPE                    Maximum Permissible Exposure—the level of radiation to which a person
                                    may be exposed without hazardous effect or adverse biological changes

             OTA                    Over-The-Air or Radiated through the antenna

             PCS                    Personal Communication System - PCS spans the 1.9 GHz radio spectrum



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 Table B-1: Acronyms and definitions
             Acronym or term           Definition

            RF                        Radio Frequency

            RMS                       Root Mean Square

            SA                        Selective Availability

            Sensitivity (Audio)       Measure of lowest power signal that the receiver can measure

            Sensitivity (RF)          Measure of lowest power signal at the receiver input that can provide a
                                      prescribed BER/BLER/SNR value at the receiver output.

            SIM                       Subscriber Identity Module

            SNR                       Signal to Noise Ratio

            SOF                       Start of Frame - a USB function

            UART                      Universal Asynchronous Receiver Transmitter

            UDK                       Universal Development Kit (PCI Express Mini Card Dev Kit)

            UMTS                      Universal Mobile Telecommunications System

            USB                       Universal Serial Bus

            USIM                      Universal Subscriber Identity Module

            VCC                       Supply voltage

            WCDMA                     Wideband Code Division Multiple Access—In this document, the term
                                      “UMTS” is used instead of “WCDMA”.

            XIM                       In this document, XIM is used as part of the contact identifiers for the USIM
                                      interface (XIM_VCC, XIM_CLK, etc.).




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       Index
       A                                                           M
       acronyms and definitions, 23– 24                            module
       antenna                                                         power states, 10– 11
            connection considerations, 14
            custom, considerations, 15
            limit, matching coaxial connections, 14                N
            location, considerations, 15
                                                                   noise
            matching, considerations, 14
                                                                        leakage, minimizing, 14
            maximum cable loss, 14
                                                                        RF interference, power supply, 15
                                                                   normal, module power state, 11
       C
       cable loss                                                  O
            antenna, maximum, 14
                                                                   off, module power state, 10
       connection
            grounding, 14
       connectors, required                                        P
            EDGE mating (52-pin), 7
            host-module, 7– 8                                      power
            RF, Hirose, 7                                              default state, 11
            USIM, 8                                                    disconnected, characteristics, 10
                                                                       normal, characteristics, 11
                                                                       off, characteristics, 10
       D                                                               required supply voltage, 9
                                                                       signals, overview, 9
       desense. See RF
                                                                       state, disconnected, 10
       disconnected, module power state, 10
                                                                       state, low power, 11
                                                                       state, normal, 11
       E                                                               state, off, 10
                                                                       state, sleep, 11
       EDGE connector, manufacturers, 7                                states, module, 10– 11
       electrostatic discharge. See ESD                                supply, RF interference, 15
       ESD                                                             supply, ripple limit, 15
            protection requirements, 9– 10                         power interface, 9– 11


       G                                                           R
       grounding                                                   regulatory information, 17– 21
           connection considerations, 14                                FCC, 18
                                                                        limitation of liability, 17
                                                                        safety and hazards, 17
       I                                                           RF
                                                                        antenna cable loss, maximum, 14
       impedance
                                                                        antenna connection, considerations, 14
             module-antenna, 15
                                                                        cable type, required, 7
       interference
                                                                        desense
             device generated, 16
                                                                              device-generated, 16
             power supply noise, 15
                                                                        integration, 13– 16
             wireless devices, 15
                                                                        interference
                                                                              other devices, 16
       L                                                                      power supply, 15
                                                                              wireless devices, 15
       low power, module power state, 11                           Rx sensitivity
                                                                        RF parameter, 13




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S                                                                Universal Development Kit (UDK)
                                                                     components, included, 7
sensitivity                                                      USIM
     RF parameter, 13                                                connector type, required, 8
shielding
     module, compliance, 14
SIM
                                                                 W
     See also USIM
                                                                 W_Disable#
simultaneous transmission evaluation, 20                            Normal state, 11
sleep, module power state, 11
                                                                    off state, 10

U                                                                Z
UDK (Universal Development Kit)
                                                                 ZIF (Zero Intermediate Frequency), 15
   components, included, 7




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Document Created: 2012-03-12 15:13:36
Document Modified: 2012-03-12 15:13:36

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