Black Box MD885A-R3, MD885AE-R2, MD885C-R2, 34336 user manual AT D3331234

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5.0 Hayes Emulation Mode

For most commands, there are parameters—numerical values used with the command specifying the function of the command. For example, the command L controls the modem’s speaker volume. L2 sets the volume to medium. The default value is a predetermined value which is in effect the first time the Modem is powered up or when a reset command is given. The possible parameters and default value for each command are shown in Table 5-1.

•A — Quick Answer. The A command immediately puts the modem into the answer mode. The modem will not execute any command entered in the command line after A.

The A command is used to transfer a call between two individuals to a communication between their computers: One person enters A while the other enters D.

•A/ — Repeat Previous Command. A/ is most commonly used to redial a busy telephone number. The AT prefix is not used with A/, and no carriage return is required. Commands are available for repetition in the command buffer only until AT is entered or power to the unit is turned off. A/ will not work following an AT or after the power has been turned off and back on.

•D — Originate Mode For Dialing. The modem dials the number that follows and attempts to go on-line. The dial command D is followed by either a telephone number to be dialed, or a string consisting of a phone number and dial command modifiers (e.g., T, P, and ; ). An example of the D command is shown below:

AT D3331234.

In response to the command above, the Modem dials the telephone number 333-1234, and then waits for a carrier tone from the remote modem (default wait time is 30 seconds). If the modem is able to establish a call, it gives a CONNECT result code, indicating that it is on-line. If it cannot connect, it issues a different result code, such as NO CARRIER, BUSY, or NO DIALTONE. The characters that can be dialed are 0 through 9, A, B, C, D, #, and *.

•AT D — the dial command without a telephone number causes the modem to pick up the telephone line without dialing a number.

•DS —Dial Stored Number. The DS command instructs the Modem to dial a telephone number or dial string previously stored using the &Z command. The syntax is DS=m, with m specifying the memory location where the dialed number will be stored. Up to ten numbers may be stored in memory locations 0-9. S=m may be placed anywhere in the dial string; for example, AT D2345S=2 dials 2345 and the number is stored in memory location 2.

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Contents Modem FCC Information Table of Contents Table of Contents Diagnostics Table of Conents Specifications Specifications Installation Quick StartQuick Start For all applicationsFor dialup applications For leased-line applicationsFront-Panel LCD and Controls Front-Panel LCD and ControlsRS = TR =MR = CS =Quick Setup V25 Dial Async Available Quick Setup ConfigurationsDial Hayes V25 Dial SyncQuick Setup 07 2-W Leased ANS Quick Setup 11 2-W Dial Quick Setup 12 2-W Dial V32/208AT D 9,5551212 cr Basic OperationAT D 5551212 cr AT DP Synchronous V.25 bis Operation Asynchronous V.25 bis OperationCRN Pushbutton 1 Phone Pushbutton 2 Prog Auto-Dial Failure Messages ENT9600 6 2-WIREDIAL Bell 208 Operation Quick Setups 11 34/V.32 Dial Backup Slave-to-Master Inbound Transmission Problem Solving This page is intentionally left blank Modem Setup Options Methods For Selecting OptionsSelecting Options from the Front-Panel Setup Type Line Speed For Modem SETUPS. The first Options Modem SETTING, bps Resultant Data RATE, bpsModem 1 V.42 Error Correction Options Modem Modem Setup Options Modem Modem Setup Options Dialer Mode Data Format Options Modem See Section Remote Test Enable Disable Modem Setup Options Modem Setups Compromise Equalizers option is available for all modes Modem 8 V.33 and Bell 208A/B Options Options Accessible with Summary Setup only Modem Setup Options Modem Modem Setup Options Quick Reset Phone Number StorageLeased Line Auto-Recovery General Operation and Special FeaturesDialing Control Characters Character FunctionDial Backup Dial Line Auto-Recovery DTR Dialing AT &Z0=T555-4545/RDumb Mode And Bell 208 Operation TR MR RS CS Modem Security Operation Password Commands Command Function EXAMPLE1 MEM.LOC.2AT &Z1=/ASECURITY AT &Z5=/PYELLOW Modem-Controlled Remote Control AT &Z0=/UCONNECTEDControl Procedure Modem-to-Modem Control Procedure Using a Rack Controller General Operation and Special Features Remote control-address control mode Diagnostic Interface Control Pin FunctionDiagnostic Port Commands Command FunctionConnect 3,22 Connect 003,022 CON 000003,22Response Meaning Error Address g,uDTE display Automatic Fallback V.22 bis/BELL 212A/BELL 103 Fallback Default Mode DescriptionRate Renegotiation Procedure RRP V.22 bis/V.22/V.21/V.23 FallbackHow to Enable or Disable RRP Rate Change Screen11 V.13 Operation Hayes Emulation Mode Hayes Mode AutodialerAT M2 V1 D 555-1212 S2=1O AT DT 9,212555-1234 or AT DT 9, 212 555Exclamation Flash AT DT 9,555-1212Hayes Compatible Commands AT D3331234 AT D 555-1212 L5 AT S7=30 AT D9,3331234 Hayes Emulation Mode Registers AT S0? S7? AT S0=5Modem Hayes Emulation Mode Selecting Options In Hayes Mode Hayes Mode Reference Tables Hayes Compatible Commands Speaker Control Speaker VolumeProduct Code Or Checksum Forced On-LineTone Dialing Modify S RegisterRead S Register Word/Digit Result CodeLong-Space Disconnect Forced Command StateRecall Factory Configuration Recall Stored User ProfileData Set Ready Control Asynchronous/Synchronous ModeRTS And CTS Options Default User Profile Test CommandsView Active Configuration, etc Write Profile To Memory\B1 Store Telephone NumberBuffer Mode/Speed Conversion MNP Class LimitHayes Compatible Commands Hayes Mode Result Codes Digit Code Word Code Meaning105 Register Range Units Default Description S Register FunctionsV.25 bis Autodialer Enabling The V.25 bis AutodialerV.25 bis Autodialer Commands 109 V.25 bis Autodialer Commands CICSection V.25 bis Dialing ParametersC, D, #, V.25 bis Result Codes DTR Dialing In V.25 bis ModeDialing Parameters V.25 bis Result CodesWhen And Why To Test Symptoms and Scope of The ProblemOverview Of Modem Diagnostics Physical InspectionHow to Select and Activate Tests Diagnostic Monitoring Status Screens116 117 Local Modem Diagnostics Analog Loopback Test119 Analog Loopback Self-Test Albst External Analog Loopback Test Albx 122 External Analog Loopback Self Test Albst 124 Digital Loopback Test DLB Remote Modem Diagnostics Remote Digital Loopback Test RDL127 Remote Digital Loopback Self Test Source Nation Indicator Pin Desig FunctionAppendix B Quick Setup Configurations Table B-1. Quick Setup ConfigurationsTable B-1 . Quick Setup Configurations Dumb LEASED2132 133 134 Appendix C Summary Setup Introduction to Summary SetupFigure C-1. How to access the Summary-Setup Screens Setups Screen Primary Options0 2 1 1 0 0 Primary OptionsDial Line Options V42 1 V42 0 0 0 1 0 2Data Pump Options Pump1 Pump2Miscellaneous Options Misc1 Misc2AT Profiles Screen AT ProfilesREG Screen Figure C-3. Changing the S Register ValueAppendix D Jumpers Appendix D Jumpers Table D-1. Jumper Switch Functions NOM Statement 148 Copyright 1999. Black Box Corporation. All rights reserved
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MD885C-R2, MD885A-R3, MD885AE-R2, 34336 specifications

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