Xircom An Intel Company GEM3501 User Manuals

Table of Contents

• R

  2
• REVISION HISTORY

  2
  • Important Safety Information

    3
  • Guidelines for Limiting RF Exposure

    3
  • Disclaimer

    3
  • Beta Release Notes

    4
    • Data Services

      4
    • AT Commands

      4
    • PUK Procedure

      4
• TABLE OF CONTENTS

  5
• PRODUCT OVERVIEW

  9
  • GSM Overview

    9
  • Model Variation

    9
  • General Description

    9
  • Summary of the Features for the Core Engine modem

    10
  • Programmer Reference

    10
  • Backward Compatibility

    10
  • Modes of Operation

    11
    • Circuit Switched Data

      11
    • Transparent and Non Transparent Transmissions

      11
    • Short Message Service

      11
    • Voice

      12
    • General Packet Radio Service (GPRS)

      12
• CARRIER BOARD

  13
  • Core Engine Modem I/O Interface [P4]

    13
  • Core Engine I/O Signal Header [J4]

    17
  • Ground Points [J2, J9]

    17
  • RF Antenna Connector [J5, J6]

    17
  • Power [J7, J8, J10]

    17
  • Primary Serial Interface [P3]

    18
  • Secondary Serial Interface [P2]

    18
  • Primary Audio Interface [P1]

    19
  • Secondary Audio Interface [J1]

    20
  • Audio Interface Select [JP2]

    20
  • Subscriber Interface Module [J3]

    20
  • Status Indication [DS1]

    20
• POWER

  22
  • Power Up Sequence

    22
  • Power Management

    22
    • Power Modes

      22
      • “READY” Mode

        22
      • “STANDBY” Mode

        22
      • “RF DISABLED” Mode

        23
      • “SLEEP” Mode

        23
      • “DORMANT” Mode

        23
    • Hardware Signals

      24
      • “SLEEP” Signal

        24
      • “PWR_DWN” Signal

        24
      • “WAKE_UP” Signal

        24
      • “RESET_B” Signal

        24
    • Software Commands

      24
      • AT+CPWROFF

        24
      • AT+CFUN

        24
  • Transmit Power

    25
• SERIAL COMMUNICATIONS

  26
  • Supported Serial Port Configurations

    26
    • Single Port Configuration

      26
      • Single Port – Control and Packet Data

        26
      • Single Port - Standard Protocol Support

        26
      • Single Port - Enhanced Protocol Support Using “XGAP”

        26
    • Dual Port Configuration

      27
      • Dual Port - Primary Port: Control & Circuit Switched Data

        27
      • Dual Port - Secondary Port: Packet Data Using “XGAP”

        28
• AUDIO

  29
  • Audio Path Selection

    29
    • Hardware Selection of Audio Path

      29
    • Software Selection of Audio Path

      29
  • Microphone Input

    29
  • Speaker Output

    30
  • Audio Circuit Implementation

    31
    • Example Single-Ended Microphone Circuit

      31
    • Example Differential Microphone Circuit

      32
  • Microphone Cable Considerations

    32
• RF ANTENNA

  33
  • Antenna Connector

    33
  • Antenna Selection

    33
  • Antenna Performance Guidelines

    33
    • Antenna Impedance Match

      33
    • Antenna Pattern and Gain

      34
    • Antenna Beam Width

      34
    • Antenna Polarization

      35
  • Antenna Location and Network Communication

    35
• PROVISIONING THE SIM

  36
  • GSM Services Supported by the Core Engine modem

    36
  • Selecting the Modes of Operation

    36
• INSTALLATION & INITIALIZATION

  37
  • Installation and Verification

    37
    • Installation

      37
      • Install SIM card.

        37
      • Terminal Connect & Setup

        37
      • Connect Power Supply Cable

        37
      • Verify all Terminal Connections

        37
      • Apply Power

        38
    • Verification

      38
      • Using AT Commands

        38
      • Initial Response to the AT Command

        38
      • Modem Initialization

        38
      • SIM PIN Status

        39
      • Data Call Setup (modem origination)

        39
      • Modem Status Commands

        40
  • SMS Message Verification

    41
    • Modem Sent SMS (Text)

      41
    • Modem RECEIVE SMS (Text)

      44
    • SIM Data Provisioning Verification (Optional)

      44
    • Match Modem Serial port to CPE

      44
    • Verify Setup

      44
    • Connect Primary Serial Port Cable

      44
  • Final Verification

    45
    • SMS Verification

      45
• DETAILED SPECIFICATIONS

  46
  • Physical Dimensions and Weight

    46
  • Operating Power

    46
    • Transmit Power

      46
    • Receiver Sensitivity

      47
  • Care and Maintenance

    47
• ENVIRONMENTAL SPECIFICATIONS

  48
  • Climatic

    48
    • Climatic: Operational

      48
  • Mechanical

    48
    • Mechanical: Operational

      48
  • Electromagnetic

    49
• GLOSSARY AND ACRONYMS

  50
  • Required Files

    53
  • Download Utility

    53
  • Download Procedure

    54
  • Antenna Coaxial Cable and Connectors

    56
  • Outdoor Antenna Grounding

    56
  • Coaxial Cable Routing

    56
  • Coaxial Cable Losses and Lengths

    57
  • Formula Examples

    59
    • Example 1:

      59
    • Example 2:

      59
    • Example 3:

      59