Sierra Wireless AirPrime EM7355 Hardware Integration Manual

Sierra Wireless AirPrime EM7355 Hardware Integration Manual

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AirPrime EM7355
Hardware Integration Guide
4112880
Rev 2
Distribution under NDA only
Contents subject to change

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Summary of Contents for Sierra Wireless AirPrime EM7355

  • Page 1 AirPrime EM7355 Hardware Integration Guide 4112880 Rev 2 Distribution under NDA only Contents subject to change...
  • Page 3 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...
  • Page 4 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 and MMP Portfolio Licensing.
  • Page 5: Table Of Contents

    Contents Introduction ........... . .7 Accessories .
  • Page 6 Hardware Integration Guide Proprietary and Confidential - Contents subject to change 4112880...
  • Page 7: Introduction

    1: Introduction The Sierra Wireless EM7355 Embedded Module is an M.2 modem that provides LTE, DC-HSPA+, HSPA+, HSDPA, HSUPA, WCDMA, GSM, GPRS, EDGE, CDMA, and GNSS connectivity for notebook, ultrabook, and tablet computers over several radio frequency bands. The device also supports 2G / 3G roaming.
  • Page 8 Hardware Integration Guide Proprietary and Confidential - Contents subject to change 4112880...
  • Page 9: Power

    For detailed pinout and voltage / current requirements of this module, see the AirPrime EM7355 Product Technical Specification & Customer Design Guidelines. Module power states The module has five power states, as described in Table 2-1.
  • Page 10 Hardware Integration Guide Table 2-1: Module power states (Continued) State Details •     Sleep Normal state of module between calls or data connections • Module cycles between wake (polling the network) and sleep, at network provider- determined interval. •...
  • Page 11: Rf Specifications

    3: RF Specifications The EM7355 operates on the frequency bands listed below. Table 3-1: LTE frequency band support Band Frequencies Tx: 1850–1910 MHz Band 2 Rx: 1930–1990 MHz Tx: 1710–1755 MHz Band 4 (AWS) Rx: 2110–2155 MHz Tx: 824–849 MHz Band 5 Rx: 869–894 MHz Band 13...
  • Page 12: Rf Connections

    Hardware Integration Guide Table 3-3: GSM frequency band support (Continued) Band Frequencies GSM 1800 Tx: 1710–1785 MHz Rx: 1805–1880 MHz GSM 1900 Tx: 1850–1910 MHz Rx: 1930–1990 MHz Table 3-4: CDMA frequency band support Band Frequencies Band Class 0 Tx: 824–849 MHz (Cellular 800 MHz) Rx: 869–894 MHz Band Class 1...
  • Page 13: Antenna And Cabling

    RF Specifications Antenna and cabling When selecting the antenna and cable, it is critical to RF performance to match antenna gain and cable loss. Choosing the correct antenna and cabling When matching antennas and cabling: • The antenna (and associated circuitry) should have a nominal impedance of 50 ...
  • Page 14: Ground Connection

    Hardware Integration Guide 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 module’s mounting hole. •...
  • Page 15: Device-Generated Rf Interference

    RF Specifications Proximity of host electronics to the antenna in wireless devices can contribute to decreased Rx performance. Components that are most likely to cause this include: • Microprocessor and memory • Display panel and display drivers • Switching-mode power supplies Device-generated RF interference The module can cause interference with other devices.
  • Page 16: Radiated Sensitivity Measurement

    To determine the extent of any receiver performance desensitization due to self- generated noise in the host device, over-the-air (OTA) or radiated testing is required. This testing can be performed by Sierra Wireless or you can use your own OTA test chamber for in-house testing.
  • Page 17: Regulatory Compliance And Industry Certifications

    (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...
  • Page 18: Important Compliance Information For North American Users

    Hardware Integration Guide • 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 interference. In such areas, the EM7355 modem MUST BE POWERED OFF.
  • Page 19 Regulatory Compliance and Industry Certifications · The output power and antenna gain must not exceed the limits and configu- rations stipulated in the following table. Device Technology Band Frequency Maximum Maximum (MHz) conducted power antenna gain (dBm) (dBi) EM7355 1850–1910 Embedded 1710–1755 Module...
  • Page 20 Hardware Integration Guide The end product with an embedded EM7355 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.
  • Page 21: Acronyms

    5: Acronyms Table 5-1: Acronyms and definitions Acronym or term Definition 1xEV-DO Single Carrier (1X) EVolution – Data Only. A high-speed standard for cellular packet data communications. Supports Internet connections with data rates up to 3.1 Mbps (downlink from the network) and 1.8 Mbps (uplink to the network).
  • Page 22 Hardware Integration Guide Table 5-1: Acronyms and definitions (Continued) Acronym or term Definition Decibel = 10 x log (P1 / P2) P1 is calculated power; P2 is reference power Decibel = 20 x log (V1 / V2) V1 is calculated voltage, V2 is reference voltage A logarithmic (base 10) measure of relative power (dB for decibels);...
  • Page 23 Acronyms Table 5-1: Acronyms and definitions (Continued) Acronym or term Definition Factory Serial Number—A unique serial number assigned to the mini card during manufacturing. Global Certification Forum GLONASS Global Navigation Satellite System — A Russian system that uses a series of 24 satellites in middle circular orbit to provide navigational data.
  • Page 24 Hardware Integration Guide Table 5-1: Acronyms and definitions (Continued) Acronym or term Definition Low Power Mode Line Print Terminal Long Term Evolution—a high-performance air interface for cellular mobile communication systems. Modulation and Coding Scheme Megahertz = 10e6 Hz MEID Mobile Equipment Identifier — The unique second-generation serial number assigned to the minicard for use on the wireless network.
  • Page 25 Acronyms Table 5-1: Acronyms and definitions (Continued) Acronym or term Definition Quality of Service QPSK Quadrature Phase-Shift Keying QPST Qualcomm Product Support Tools Radio Access Technology Radio Frequency Ring Indicator roaming A cellular subscriber is in an area where service is obtained from a cellular service provider that is not the subscriber’s provider.
  • Page 26 Hardware Integration Guide Table 5-1: Acronyms and definitions (Continued) Acronym or term Definition SUPL Secure User Plane Location TIA/EIA Telecommunications Industry Association / Electronics Industry Association. A standards setting trade organization, whose members provide communications and information technology products, systems, distribution services and professional services in the United States and around the world.
  • Page 27: Index

    Index frequency band support CDMA, 12 GSM, 11, 12 accessories, 7 LTE, 11 acronyms and definitions, 21– 26 WCDMA, 11 antenna connection considerations, 12 custom, design, 13 diversity antenna, disabling, 13 limit, matching coaxial connections, 12 gain location, considerations, 13 maximum, 18 matching, considerations, 13...
  • Page 28 Hardware Integration Guide antenna cable loss, maximum, 12 antenna connection, considerations, 12 sensitivity connectors, required, 7 radiated measurement, overview, 16 desense shielding device-generated, 14 module, compliance, 12 harmonic energy, filtering, 15 reducing RF desense, 15 mitigation suggestions, 15 shielding suggestions, 15 connector, required, 7 interference...

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