Specifications
Table Of Contents
- Chapter 1 – Product Description and Specifications
- Chapter 2 – Activating and Installing the Modem
- Chapter 3 – Using the Wireless Modem
- Using AT Commands to Verify Signal Strength and Roaming Status
- Connecting to the Internet
- Appendix A – Regulatory Compliance
- Appendix B - Cellular Information
- Appendix C – Environmental Information

Contents
Multi‐TechSystems,Inc.MultiModemCellUserGuide 3
Contents
Chapter1–ProductDescriptionandSpecifications..........................................................................................5
ProductDescription..................................................................................................................................................5
RelatedDocumentation............................................................................................................................................5
MultiModemMTCBA‐H3‐U1.........................................................................................................................................5
MultiModemMTCBA‐EV1‐U1‐N3..................................................................................................................................5
Safety.......................................................................................................................................................................6
GeneralSafety...............................................................................................................................................................6
RFInterferenceIssues...................................................................................................................................................6
VehicleSafety................................................................................................................................................................6
MaintenanceoftheWirelessMultiModem..................................................................................................................6
HandlingPrecautions.....................................................................................................................................................7
FrontPanelOverview................................................................................................................................................7
LEDs...............................................................................................................................................................................7
PackageContents......................................................................................................................................................7
UnbundledPackagewithoutAccessories......................................................................................................................7
BundledPackagewithAccessories................................................................................................................................7
Specifications............................................................................................................................................................8
Chapter2–Activati
ngandInstallingtheModem...........................................................................................10
ActivatingYourWirelessAccount............................................................................................................................10
DeterminingthePhoneNumberfortheWirelessModem.......................................................................................10
InsertingtheSIMCardforGSMNetworkOperation................................................................................................10
ConnectingtheAntennaandUSBCable..................................................................................................................11
MountingtheModemonaFlatSurface..................................................................................................................11
InstallingtheHuaweiDriver....................................................................................................................................12
VerifyingThatYourModemisProperlyInstalled........................................................................................................13
Chapter3–UsingtheWirelessModem..........................................................................................................14
UsingATCommandstoVerifySignalStrengthandRoamingStatus..........................................................................14
VerifyingSignalStrength.............................................................................................................................................14
CheckingNetworkRegistrationandRoamingStatus..................................................................................................14
CheckingtheModem’sIdentity..................................................................................................................................15
ConnectingtotheInternet......................................................................................................................................15
ConnectingtoaCDMA/EVDONetworkforInternetAccess.......................................................................................15
ConnectingtoanGSM/GPRS/HSPANetworkforInternetAccess..............................................................................15
CreatingaDial‐UpConnectioninWindowsVistaandXP...........................................................................................16
CreatingaDial‐UpConnectioninWindows7.............................................................................................................17
Disconnecting..............................................................................................................................................................17
UsingaGenericDial‐UpMethodtoConnect..............................................................................................................18
AppendixA–Regul
atoryCompliance.............................................................................................................19
EMC,Safety,andR&TTEDirectiveCompliance........................................................................................................19
InternationalModemRestrictions...........................................................................................................................19










