Netgear orporated NM7371 CDMA/LTE Mini-Card Module User Manual NM7371 HWIG FCC
Netgear Incorporated CDMA/LTE Mini-Card Module NM7371 HWIG FCC
Integration Guide
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| Document ID | 2093760 |
| Application ID | Qnk0Up+WGY5PhhLm1phFVQ== |
| Document Description | Integration Guide |
| Short Term Confidential | No |
| Permanent Confidential | No |
| Supercede | No |
| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 13.94kB (174309 bits) |
| Date Submitted | 2013-10-17 00:00:00 |
| Date Available | 2014-02-28 00:00:00 |
| Creation Date | 2013-09-30 10:37:39 |
| Producing Software | Acrobat Distiller 11.0 (Windows) |
| Document Lastmod | 2013-09-30 10:50:10 |
| Document Title | NM7371 HWIG (FCC).book |
| Document Creator | FrameMaker 11.0.1 |
NM7371 Hardware Integration Guide 2400338 Rev 3 Preface Important Notice Due to the nature of wireless communications, transmission and reception of data can never be guaranteed. Data may be delayed, corrupted (i.e., have errors) or be totally lost. Although significant delays or losses of data are rare when wireless devices such as the NETGEAR® modem are used in a normal manner with a well-constructed network, the NETGEAR 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. NETGEAR accepts no responsibility for damages of any kind resulting from delays or errors in data transmitted or received using the NETGEAR modem, or for failure of the NETGEAR modem to transmit or receive such data. Safety and Hazards Do not operate the NETGEAR modem in areas where blasting is in progress, where explosive atmospheres may be present, near medical equipment, near life support equipment, or any equipment which may be susceptible to any form of radio interference. In such areas, the NETGEAR modem MUST BE POWERED OFF. The NETGEAR modem can transmit signals that could interfere with this equipment. Do not operate the NETGEAR modem in any aircraft, whether the aircraft is on the ground or in flight. In aircraft, the NETGEAR modem MUST BE POWERED OFF. When operating, the NETGEAR modem can transmit signals that could interfere with various onboard systems. The driver or operator of any vehicle should not operate the NETGEAR 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 Liability The information in this manual is subject to change without notice and does not represent a commitment on the part of NETGEAR. NETGEAR AND ITS AFFILIATES SPECIFICALLY DISCLAIM LIABILITY FOR ANY AND ALL DIRECT, INDIRECT, SPECIAL, GENERAL, INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR EXEMPLARY DAMAGES INCLUDING, BUT NOT LIMITED TO, LOSS OF PROFITS OR REVENUE OR ANTICIPATED PROFITS OR REVENUE ARISING OUT OF THE USE OR INABILITY TO USE ANY NETGEAR PRODUCT, EVEN IF NETGEAR 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 NETGEAR and/or its affiliates aggregate liability arising under or in connection with the NETGEAR 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 NETGEAR product. Rev 3 Sep.13 Proprietary and Confidential NM7371 Hardware Integration Guide Patents This product may contain technology developed by or for NETGEAR Inc. This product includes technology licensed from QUALCOMM®. Copyright ©2013 NETGEAR, Inc. All rights reserved. Trademarks NETGEAR, the NETGEAR logo, AirCard, and Watcher are trademarks of NETGEAR, Inc. in the United States and/or other countries. Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s). Windows® and Windows Vista® are registered trademarks of Microsoft Corporation. Macintosh® and Mac OS X® are registered trademarks of Apple Inc., registered in the U.S. and other countries. QUALCOMM® is a registered trademark of QUALCOMM Incorporated. Used under license. Other trademarks are the property of their respective owners. Information is subject to change without notice. Proprietary and Confidential 2400338 Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Required connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Module power states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 RF Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 RF connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Shielding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Choosing the correct antenna cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Determining the antenna’s location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 11 11 11 11 Ground connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Interference and sensitivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interference from other wireless devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Host-generated RF interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Methods to mitigate decreased Rx performance . . . . . . . . . . . . . . . . . . . . . . . . . Radiated Spurious Emissions (RSE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 12 13 13 13 Regulatory Compliance and Industry Certfications . . . . . . . . . . . . . . . . . . . . . . 15 Important notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Safety and hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Important compliance information for North American users . . . . . . . . . . . . . . . . . . 16 Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Rev 3 Sep.13 Proprietary and Confidential NM7371 Hardware Integration Guide Proprietary and Confidential 2400338 1 1: Introduction The NETGEAR NM7371 PCI Express Mini Card is a compact, lightweight, wireless LTE- and CDMA-based modem used to enable rapid development and deployment of NETGEAR WWAN-enabled devices. The NM7371 provides LTE, CDMA, and GNSS connectivity for NETGEAR Wireless WWAN-enabled Gateway & Router products. This module is intended for internal NETGEAR use only and will not be offered for sale through OEM channels or sold through direct retail (enduser install) channels. Required connectors Table 1-1 describes the connectors used to integrate the NM7371 into your host device. Table 1-1: Required host-module connectors a Connector type Description RF cables • Mate with Hirose U.FL connectors (model U.FL #CL331-0471-0-10) • Two connector jacks • Industry-standard mating connector • Some manufacturers include Tyco, Foxconn, Molex • Example: UDK board uses Molex 67910-0001 • Industry-standard connector. Type depends on how host device exposes the SIM socket • Example: UDK board uses ITT CCM03-3518 EDGE (52-pin) SIM a. Rev 3 Sep.13 Manufacturers / part numbers are for reference only and are subject to change. Choose connectors that are appropriate for your own design. Proprietary and Confidential NM7371 Hardware Integration Guide Proprietary and Confidential 2400338 2 2: Power Power supply The host provides power to the NM7371 through multiple power and ground pins. The host must provide safe and continuous power at all times; the module does not have an independent power supply, or protection circuits to guard against electrical issues. For detailed pinout and voltage / current requirements of this module, see the NM7371 Product Technical Specification Document & Customer Design Guidelines. Module power states The module has four power states, as described in Table 2-1. Table 2-1: Module power states Rev 3 Sep.13 Default state when VCC is first applied • Module is capable of placing / receiving calls, or establishing data connections on the wireless network • Current consumption is affected by several factors, including: • Radio band being used • Transmit power • Receive gain settings • Data rate • Number of active Tx time slots • Module is active • Module enters this state: • Under host interface control • Automatically, when critical temperature or voltage trigger limits have been reached Proprietary and Confidential RF enabled Module is active • USB interface active Low power (‘Airplane mode’) • Module is powered Normal (Default state) Details Host is powered State NM7371 Hardware Integration Guide Table 2-1: Module power states (Continued) 10 Module cycles between wake (polling the network) and sleep, at network provider-determined interval. • Host power source is disconnected from the module and all voltages associated with the module are at 0 V. Proprietary and Confidential RF enabled Normal state of module between calls or data connections • USB interface active Disconnected • Module is powered Sleep Details Host is powered State 2400338 3 3: RF Specifications The NM7371 operates on the frequency bands listed below. RF connections When attaching antennas to the module: Note: To disconnect the antenna, make sure you use the Hirose U.FL connector removal tool (P / N UFL-LP-N-2(01)) to prevent damage to the module or coaxial cable assembly. • Use Hirose U.FL connectors (3 mm x 3 mm, low profile; model U.FL #CL331-0471-0-10) to attach antennas to the module’s connection points. • Match coaxial connections between the module and antenna to 50 . • Minimize RF cable losses to the antenna; the recommended maximum cable loss for antenna cabling is 0.5 dB. • To ensure best thermal performance, if possible use the mounting holes to attach (ground) the device to the main PCB ground or a metal chassis. Note: If the antenna connection is shorted or open, the modem will not sustain permanent damage. Shielding The module is fully shielded to protect against EMI and must not be removed. Antenna When selecting antennas for use with NM7371, refer to MPE requirements and limitations defined within the FCC application and available on the FCC website. Choosing the correct antenna cabling When matching antennas and cabling: • 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. Determining the antenna’s location When deciding where to put the antennas: • Rev 3 Sep.13 Antenna location may affect RF performance. Although the module is shielded to prevent interference in most applications, the placement Proprietary and Confidential 11 NM7371 Hardware Integration Guide of the antenna is still very important — if the host device is insufficiently shielded, high levels of broadband or spurious noise can degrade the module’s performance. • Connecting cables between the module and the antenna must have 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. 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. Interference and sensitivity Several interference sources can affect the module’s RF performance (RF desense). Common sources include power supply noise and device-generated RF. RF desense can be addressed through a combination of mitigation techniques (Methods to mitigate decreased Rx performance on page 13) and radiated sensitivity measurement. Note: The NM7371 is based on ZIF (Zero Intermediate Frequency) technologies. When performing EMC (Electromagnetic Compatibility) tests, there are no IF (Intermediate Frequency) components from the module to consider. Interference from other wireless devices Wireless devices operating inside the host device can cause interference that affects the module. To determine the most suitable locations for antennas on your host device, evaluate each wireless device’s radio system, considering the following: 12 • 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. • 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. Proprietary and Confidential 2400338 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. Host-generated RF interference All electronic computing devices generate RF interference that can negatively affect the receive sensitivity of the module. 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 Methods to mitigate decreased Rx performance It is important to investigate sources of localized interference early in the design cycle. To reduce the effect of device-generated RF on Rx performance: • Put the antenna as far as possible from sources of interference. The drawback is that the module may be less convenient to use. • Shield the host device. The module itself is well shielded to avoid external interference. However, the antenna cannot be shielded for obvious reasons. In most instances, it is necessary to employ shielding on the components of the host device (such as the main processor and parallel bus) that have the highest RF emissions. • Filter out unwanted high-order harmonic energy by using discrete filtering on low frequency lines. • Form shielding layers around high-speed clock traces by using multi-layer PCBs. • Route antenna cables away from noise sources. Radiated Spurious Emissions (RSE) When designing an antenna for use with NETGEAR embedded modules, the host device with a NETGEAR embedded module must satisfy the radiated spurious emissions (RSE) test cases described in 3GPP2 (CDMA) and 3GPP (LTE). Note that antenna impedance affects radiated emissions, which must be compared against the conducted 50-ohm emissions baseline. (NETGEAR embedded modules meet the 50-ohm conducted emissions requirement.) Rev 3 Sep.13 Proprietary and Confidential 13 NM7371 Hardware Integration Guide 14 Proprietary and Confidential 2400338 4 4: Regulatory Compliance and Industry Certfications This module is designed to meet, and upon commercial release, will meet the requirements of the following regulatory bodies and regulations, where applicable: • Federal Communications Commission (FCC) of the United States 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 NETGEAR modem are used in a normal manner with a well-constructed network, the NETGEAR 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. NETGEAR and its affiliates accept no responsibility for damages of any kind resulting from delays or errors in data transmitted or received using the NETGEAR modem, or for failure of the NETGEAR modem to transmit or receive such data. Safety and hazards Do not operate your NM7371 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 interference. In such areas, the NM7371 modem MUST BE POWERED OFF. Otherwise, the NM7371 modem can transmit signals that could interfere with this equipment. In an aircraft, the NM7371 modem MUST BE POWERED OFF. Otherwise, the NM7371 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. Rev 3 Sep.13 Proprietary and Confidential 15 NM7371 Hardware Integration Guide Important compliance information for North American users Note: Details are preliminary and subject to change. The NM7371 modem has been granted modular approval for mobile applications. Integrators may use the NM7371 modem in their final products without additional FCC certification if they meet the following conditions. Otherwise, additional FCC approvals must be obtained. IMPORTANT: The integrator must include the antenna–body separation distance (point 1) and RF exposure (point 2) information detailed below within the user’s manual or operator instruction guide for the final product. 1. At least 20 cm separation distance between the antenna and the user’s body must be maintained at all times. 2. To comply with FCC 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: · 7.9 dBi in Cellular (BC0 / BC10) · 8.0 dBi in PCS band (BC1) · 8.0 dBi in LTE Band 25 · 7.9 dBi in LTE Band 26 · 9.5 dBi in LTE Band 41 3. The NM7371 modem may transmit simultaneously with other collocated radio transmitters within a host device, provided the following conditions are met: · Each collocated radio transmitter has been certified by FCC for mobile application. · At least 20 cm separation distance between the antennas of the collocated transmitters and the user’s body must be maintained at all times. · The output power and antenna gain must not exceed the limits and configurations stipulated in the following table. Device Technology Band Frequency (MHz) Maximum conducted power (dBm) Maximum antenna gain (dBi) NM7371 LTE 25 1850–1915 24 8.0 26 817–849 24 7.9 41 2496–2690 23.5 9.5 BC0 824–849 25 7.9 BC1 1850–1910 25 8.0 BC10 817–824 25 7.9 CDMA 16 Proprietary and Confidential 2400338 Device Technology Collocated transmitters WLAN Band Frequency (MHz) Maximum conducted power (dBm) Maximum antenna gain (dBi) 2400–2500 27 4.0 5150–5850 27 4.0 4. A label must be affixed to the outside of the end product into which the NM7371 modem is incorporated, with a statement similar to the following: · This device contains FCC ID: PY3NM7371 The end product with an embedded NM7371 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, additional testing will be required to satisfy RF Exposure, including SAR requirements of FCC Part 2.1093. Rev 3 Sep.13 Proprietary and Confidential 17 NM7371 Hardware Integration Guide 18 Proprietary and Confidential 2400338 A A: Acronyms Table A-1: Acronyms and definitions Acronym or term Rev 3 Sep.13 Definition 3GPP 3rd Generation Partnership Project API Application Programming Interface BER Bit Error Rate — A measure of receive sensitivity BLER Block Error Rate CDMA Code Division Multiple Access. A wideband spread spectrum technique used in digital cellular, personal communications services, and other wireless networks. Wide channels (1.25 MHz) are obtained through spread spectrum transmissions, thus allowing many active users to share the same channel. Each user is assigned a unique digital code, which differentiates the individual conversations on the same channel. 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 A logarithmic (base 10) measure of relative power (dB for decibels); relative to milliwatts (m). A dBm value will be 30 units (1000 times) larger (less negative) than a dBW value, because of the difference in scale (milliwatts vs. watts). EDGE Enhanced Data rates for GSM Evolution EMC Electromagnetic Compatibility EMI Electromagnetic Interference FCC Federal Communications Commission The U.S. federal agency that is responsible for interstate and foreign communications. The FCC regulates commercial and private radio spectrum management, sets rates for communications services, determines standards for equipment, and controls broadcast licensing. Consult www.fcc.gov. GLONASS Global Navigation Satellite System — A Russian system that uses a series of 24 satellites in middle circular orbit to provide navigational data. GNSS Global Navigation Satellite Systems (GPS plus GLONASS) GPS Global Positioning System An American system that uses a series of 24 satellites in middle circular orbit to provide navigational data. Host The device into which an embedded module is integrated Hz Hertz = 1 cycle / second LED Light Emitting Diode. A semiconductor diode that emits visible or infrared light. LTE Long Term Evolution—a high-performance air interface for cellular mobile communication systems. Proprietary and Confidential 19 NM7371 Hardware Integration Guide Table A-1: Acronyms and definitions (Continued) Acronym or term 20 Definition MHz Megahertz = 10e6 Hz MEID Mobile Equipment Identifier — The unique second-generation serial number assigned to the minicard for use on the wireless network. MIMO Multiple Input Multiple Output—wireless antenna technology that uses multiple antennas at both transmitter and receiver side. This improves performance. NAS / AS Network Access Server NC No Connect NIC Network Interface Card NMEA National Marine Electronics Association OEM Original Equipment Manufacturer—a company that manufactures a product and sells it to a reseller. OFDMA Orthogonal Frequency Division Multiple Access OMA DM Open Mobile Alliance Device Management — A device management protocol. OTA ‘Over the air’ (or radiated through the antenna) PA Power Amplifier packet A short, fixed-length block of data, including a header, that is transmitted as a unit in a communications network. PCB Printed Circuit Board PCS Personal Communication System A cellular communication infrastructure that uses the 1.9 GHz radio spectrum. PDN Packet Data Network PMI Pre-coding Matrix Index PSS Primary synchronisation signal PST Product Support Tools PTCRB PCS Type Certification Review Board QAM Quadrature Amplitude Modulation. This form of modulation uses amplitude, frequency, and phase to transfer data on the carrier wave. QMI Qualcomm MSM/Modem Interface QOS Quality of Service QPSK Quadrature Phase-Shift Keying QPST Qualcomm Product Support Tools RAT Radio Access Technology RF Radio Frequency Proprietary and Confidential 2400338 Table A-1: Acronyms and definitions (Continued) Acronym or term Rev 3 Sep.13 Definition RI 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. RSE Radiated Spurious Emissions RSSI Received Signal Strength Indication SDK Software Development Kit SED Smart Error Detection 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. SG An LTE signaling interface for SMS (“SMS over SGs”) SIB System Information Block SIM Subscriber Identity Module. Also referred to as USIM or UICC. SIMO Single Input Multiple Output—smart antenna technology that uses a single antenna at the transmitter side and multiple antennas at the receiver side. This improves performance and security. SISO Single Input Single Output—antenna technology that uses a single antenna at both the transmitter side and the receiver side. SKU Stock Keeping Unit—identifies an inventory item: a unique code, consisting of numbers or letters and numbers, assigned to a product by a retailer for purposes of identification and inventory control. SMS Short Message Service. A feature that allows users of a wireless device on a wireless network to receive or transmit short electronic alphanumeric messages (up to 160 characters, depending on the service provider). S/N Signal-to-noise (ratio) SNR Signal-to-Noise Ratio SOF Start of Frame — A USB function. SSS Secondary synchronisation signal. 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. Consult www.tiaonline.org. TIS Total Isotropic Sensitivity TRP Total Radiated Power UDK Universal Development Kit (for PCI Express Mini Cards) Proprietary and Confidential 21 NM7371 Hardware Integration Guide Table A-1: Acronyms and definitions (Continued) Acronym or term 22 Definition UE User Equipment UICC Universal Integrated Circuit Card (Also referred to as a SIM card.) UL Uplink (mobile to network) or Underwriters Laboratory UMTS Universal Mobile Telecommunications System USB Universal Serial Bus USIM Universal Subscriber Identity Module (UMTS) VCC Supply voltage VSWR Voltage Standing Wave Ratio WAN Wide Area Network WCDMA Wideband Code Division Multiple Access (also referred to as UMTS) WLAN Wireless Local Area Network ZIF Zero Intermediate Frequency Proprietary and Confidential 2400338
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