Sierra Wireless AirPrime EM7655 Скачать руководство пользователя страница 28 | Manualshive

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Sierra Wireless AirPrime EM7655 Скачать руководство пользователя страница 28

Hardware Integration Guide

28

Proprietary and Confidential - Contents subject to change

4112881

RF

antenna cable loss, maximum

antenna connection, considerations

connectors, required

desense

device-generated

harmonic energy, filtering

mitigation suggestions

shielding suggestions

interference

other devices

wireless devices

RF bands supported

CDMA

GSM

LTE

RF specifications

RSE

S

sensitivity

radiated measurement, overview

shielding

module, compliance

reducing RF desense

SIM

connector, required

specifications

RF

W

WCDMA

frequency band support

Z

ZIF (Zero Intermediate Frequency)

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Содержание AirPrime EM7655

Страница 1: ...AirPrime EM7655 Hardware Integration Guide 4112881 Rev 1 Distribution under NDA only Contents subject to change...

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Страница 3: ...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...

Страница 4: ...s Windows is a registered trademark of Microsoft Corporation QUALCOMM is a registered trademark of QUALCOMM Incorporated Used under license Other trademarks are the property of their respective owners...

Страница 5: ...connection 14 Interference and sensitivity 14 Interference from other wireless devices 14 Host generated RF interference 14 Device generated RF interference 15 Methods to mitigate decreased Rx perfor...

Страница 6: ...Hardware Integration Guide 6 Proprietary and Confidential Contents subject to change 4112881...

Страница 7: ...DK for AirPrime MC series modules and a separate adapter board and RF cable may be ordered to use the UDK with the EM7655 The UDK contains hardware components for evaluating and developing with the mo...

Страница 8: ...Hardware Integration Guide 8 Proprietary and Confidential Contents subject to change 4112881...

Страница 9: ...1 Module power states State Details Host is powered Module is powered USB interface active RF enabled Normal Default state Module is active Default state Occurs when VCC is first applied POWER_ON is...

Страница 10: ...determined interval Off Host keeps module powered off by asserting POWER_ON signal pulled low or left floating Module draws minimal current See POWER_ON and RESET_N on page 33 for more information Dis...

Страница 11: ...Band 25 Tx 1850 1915 MHz Rx 1930 1995 MHz Table 3 2 WCDMA frequency band support1 1 WCDMA channel spacing is 5 MHz but this can be adjusted to optimize performance in a particular deployment scenario...

Страница 12: ...o attach ground the device to 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 EM...

Страница 13: ...erference 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 pe...

Страница 14: ...16 Note The EM7655 is based on ZIF Zero Intermediate Frequency technologies When performing EMC Electromagnetic Compatibility tests there are no IF Intermediate Frequency components from the module t...

Страница 15: ...nterference 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 paralle...

Страница 16: ...designed antennas Radiated sensitivity measurement A wireless host device contains many noise sources that contribute to a reduction in Rx performance To determine the extent of any receiver performan...

Страница 17: ...f the OEM Sierra Wireless offers professional services based assistance to OEMs with the testing and certification process if required Important notice Because of the nature of wireless communications...

Страница 18: ...American users Note Details are preliminary and subject to change The EM7655 modem has been granted modular approval for mobile applications Integrators may use the EM7655 modem in their final product...

Страница 19: ...must clearly indicate the operating requirements and conditions that must be observed to ensure compliance with current FCC IC RF exposure guidelines Device Technology Band Frequency MHz Maximum cond...

Страница 20: ...embedded EM7655 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 portabl...

Страница 21: ...tions Compare to 1xEV DO 3GPP 3rd Generation Partnership Project 8PSK Octagonal Phase Shift Keying AGC Automatic Gain Control API Application Programming Interface BER Bit Error Rate A measure of rece...

Страница 22: ...Effective Radiated Power ESD Electrostatic Discharge FCC Federal Communications Commission The U S federal agency that is responsible for interstate and foreign communications The FCC regulates comme...

Страница 23: ...red on inter RAT Radio Access Technology IOT Interoperability Testing IS Interim Standard After receiving industry consensus the TIA forwards the standard to ANSI for approval IS 2000 3G radio standar...

Страница 24: ...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 S...

Страница 25: ...ngle 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...

Страница 26: ...card UL Uplink mobile to network UMTS Universal Mobile Telecommunications System USB Universal Serial Bus USIM Universal Subscriber Identity Module UMTS VCC Supply voltage VSWR Voltage Standing Wave R...

Страница 27: ...grounding 14 connectors required host module 7 D desense See RF diversity antenna disabling 13 F filtering RF desense 15 FPC connector required 7 frequency band support CDMA 12 GSM 11 LTE 11 WCDMA 11...

Страница 28: ...energy filtering 15 mitigation suggestions 15 shielding suggestions 15 interference other devices 15 wireless devices 14 RF bands supported CDMA 12 GSM 11 LTE 11 WCDMA 11 RF specifications 11 16 RSE 1...

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