Multi-Tech Systems MT3334SMI manual Changing the Remote Escape Character, Remote Configuration

Page 53

Chapter 5 - Remote Configuration

Changing the Remote Escape Character

To increase security, you can change a remote modem’s remote configuration escape character. The remote configuration escape character is stored in register S9. The factory default is 37, which is the ASCII code for the percent character (%). Setting S9 to 0 (zero) disables remote configuration entirely—but if you do this remotely, you won’t be able to change it back remotely!

1.Establish a remote configuration link with the remote modem as described in “Basic Procedure.”

2.Type ATS9=n, where n is the ASCII code for the new remote configuration escape character, then press ENTER.

3.Save the new value by typing AT&W and pressing ENTER.

4.Type ATO<CR> to exit remote configuration.

MT3334SMI

Image 53

Contents Data/Fax Socketed Modem Model MT3334SMI Evaluation KitPatents Revision DescriptionContents Index Introduction and Description Introduction FeaturesProduct Description ModemModule Developer’s GuideIntroduction and Description Technical Specifications1200 bps MT3334SMI Physical Dimensions Physical DimensionsLED1-LED4 Test/Demo Board SpecificationsDS1 MT3334SMI Test/Demo Board Block Diagram Test/Demo Board Block DiagramMT3334SMI Pinout MT3334SMI Pin-outTypical Application Hardware Considerations MT3334SMI Design ConsiderationsRecommended Transceiver PC Board Layout ConsiderationsCalculating Z for Tip and Ring Traces Qty Name Description MT3334SMI PlacementKey FCC Part Telecom Labeling RequirementsMultiple Listing ReregistrationIndustry Canada CS-03 AT Commands, S-Registers, and Result Codes Answer Repeat Last CommandAT Commands, S-Registers, and Result Codes Monitor Speaker Mode Monitor Speaker VolumeReturn Online to Data Mode Result Codes Enable/DisableSr? Read Register Value Modem ResetTone Dialing Result Code FormatAsynchronous Communications Mode Command &Fn Load Factory SettingsDisplay Current Settings Store Current Configuration\An Select Maximum MNP Block Size Command &Zy=x Store Dialing Command\Bn Transmit Break \Jn Data Buffer Control\Tn Inactivity Timer \Nn Error Correction Mode Selection\Qn Flow Control Selection \Vn Protocol Result CodeCommand %En Fallback and Fall Forward Control Command %DCn AT Command ControlCommand +ES=n Enable Synchronous Buffered Mode Enter Setup PasswordRegisters Register Unit Range Default DescriptionS43 Terse Verbose Description Result CodesClass 1 Fax Commands Command Description Class 1 Fax Command SummaryCommand Class 1 Fax Commands Fax MOD Modulation Parameter ValuesFunction Display Current Class Values Default Data modem Result Code MeaningFunction ModemModule Developer’s Guide CommandFunction Select Service Class Values Default Data mode +FRS=? Enter Class 1 Fax Commands+FRM=? Enter Sample Sessions Flow ControlResult Codes Action by Command Respone Local Modem Remote PC AT+FRH=3 No Carrier ModemModule Developer’s Guide Class 2 Fax Commands Class 2 Fax Commands EIA SP-2388 August Class 2 Fax Command Implementation+FAA +FAXERR+FCR +FBOR+FCQ Fax Capability Parameters +FDCC+FDCS Current Session ResultsData Compression Format Conversion +FDFFC+FDIS Current Session Parameters+FDT +FDR+FECM +FET+FLID +FK+FLNFC +FLPL+FRBC +FPTS+FREL +FSPL+FTSI +FHNG MT3334SMI Remote Configuration Setup Basic ProcedureChanging the Setup Password ModemModule User GuideChanging the Remote Escape Character Remote ConfigurationMT3334SMI Troubleshooting Local Analog Loopback Test V.54 Loop Test procedureRemote Digital Loopback Test V.54 Loop TroubleshootingLocal digital loopback test Local Digital Loopback Test V.54 LoopUpgrade Procedure Identify the Modem Firmware Upgrade OverviewIdentify the Current Firmware Version Multi-Tech Web SiteMulti-Tech BBS Download the Upgrade FileUpgrade Procedure Use FlashPro to Upgrade Modem Firmware Extract the Upgrade FilesRestore Your Parameters Clear Your Stored ParamentersAppendixes MT3334SMI International Modem Restrictions FCC FAX UpdateCanadian Limitations Notice AppendixesNew Zealand Telecom Warning Notice EMC, Safety and Terminal Directive ComplianceEuropean Directives User Guide Statement Introduction Appendix B Multi-Tech Flash Programming ProtocolProgramming the Modem Handshake SequenceModemModule Developer’s Guide Program Sequence Other supported boot code commandsOther programming concerns Xxxx Intel Hex FormatData Record Eeee Extended Address RecordEnd of File Record Index IndexMT3334SM MT3334SMI MT3334SM