Multi-Tech Systems MT3334HD8 manual CDn

Page 82

MT3334HD8 User Guide

Command

Values

Description

$BAn

n = 0 or 1

Baud Adjust

&Cn

n = 0, 1, 2,

 

or 4

***$BA0 Set baud adjust off, speed conversion on. (Serial port speed is independent of modem data rate.)

$BA1 Set baud adjust on, speed conversion off. (Serial port speed is same as modem data rate.)

Carrier Detect Control

&C0

Force Carrier Detect on.

*** &C1

Let Carrier Detect follow carrier signal.

&C2

Let Carrier Detect drop for time set by S24 on

 

disconnect, then go high again.

&C4

Reset modem when Carrier Detect drops.

&CDn

n = 0 or 1

Cleardown at Disconnect

 

*** &CD0 Enable cleardown.

 

 

&CD1 Disable cleardown.

Ds

s = phone #

Dial

 

 

 

Dial telephone number s, where s may include up to

 

 

60 digits and the T, P, R, comma, colon, and semicolon

 

 

characters.

DsNd

s = phone #

Store Phone Number

 

d = 0 or 1

To store, enter D followed by telephone number s,

 

 

then N followed by directory number d.

&Dn

n = 0, 1, 2,

Data Terminal Ready Control

 

or 3

&D0

Modem ignores DTR signal.

 

 

&D1

When DTR drops, the modem hangs up. While

 

 

 

DTR is low, the modem accepts commands but

 

 

 

will not dial or auto-answer until DTR goes high

 

 

 

again.

 

*** &D2

Same as &D1.

 

 

&D3

When DTR drops, the modem hangs up and

 

 

 

resets as if an ATZ or an AT&F command was

 

 

 

issued.

%DCn

n = 0 or 1

Command Mode Control

 

*** %DC0 Enable command mode.

 

 

%DC1 Disable command mode.

%DFn

n = 0 or 1

Line Probe Data Format

 

***

%DF0

V.34 line probe data displayed in graph format.

 

 

%DF1

V.34 line probe data displayed in table format.

%DPn

n = 0 or 1

Line Probe Data Read

 

***

%DP0 Disable reading of line probe data during the

 

 

 

V.34 handshake.

%DP1 Enable reading of line probe data during the V.34 handshake.

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CommPlete Communications Server

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Contents MT3334HD8 Modem User Guide Multi-Tech Systems, Inc Woodale Drive Mounds View, Minnesota CommPlete Communications Server FCC Fax Warning Canadian Limitations NoticeTable of Contents Appendix D Testing the MT3334HD8Warranty, Service, and Technical Support Appendix FIntroduction Introduction LED IndicatorsPower Supplies Manual OrganizationInstallation Technical Specifications Data Rates ModemIntroduction 2400 & 1200 bps MT3334HD8 User Guide Power Installation Safety Warnings MT3334HD8 modem cardPre-Installation Notes Installation ProcedurePage AT Commands Command Structure Working with AT CommandsModes of Operation Command Editing AT Commands by Function $BA Ds Dial Dialing CommandsDial Modifier Commands Continuous RedialPulse or Tone Dialing Wait for New Dial ToneDialing Pause Rn Reverse Originate/Answer ModeReturn to Command Mode After Dialing Flash On-HookCall Card Tone Detect Phone Number Memory Commands@ Quiet Answer DsNd Store a Phone NumberNdNe Number Linking Configuration Storage and Recall CommandsWn Store Configuration List Stored Telephone NumbersFn Load Default Configuration Modem Response Result Code CommandsReset Modem Echo Command Mode Characters Result Codes Verbose/Terse #An Auto Speed Detection Online Connection CommandsAn Answerback Bn Answer ToneCDn Cleardown at Disconnect DCn AT Command ControlDTn Dtmf Detection Hn Busy-Out After Disconnect #Fn Fallback ModesGn Guard Tones Pn Set Pulse-Dial Ratios$Tn Calling Tone RDn Square Wave Ring Detect#Tn Trellis-Coded Modulation Yn Long Space Disconnect CommandsFn Echo Canceler Frequency Offset Compensation RAn Asymmetric Bit RateCn Carrier Detect Control RS-232 Interface CommandsDn Data Terminal Ready Control RFn CTS/RTS Interaction Control Rn Clear to Send ControlSn Data Set Ready Control SFn DSR/CD Interaction Control#Ln V.42 Error Correction Modes Error Correction and Data Compression CommandsEn Error Correction Modes En Data Compression$Fn Auto-Reliable Fallback Character Enable/Disable $En V.42 Error Correction at 300 bps$An Auto-Reliable Buffering $BAn Baud Adjust Speed Conversion Commands$Rn Retransmit Count $MBn Modem Baud Rate $SBn Serial Port Baud RateInquire Product Code Immediate Action CommandsRepeat Last Command L5, L7 List Current Operating ParametersFlow Control Commands E4 Hardware Flow Control E3 Flow Control DisableEn Non-Error Correction Mode Flow Control E5 XON/XOFF Flow ControlEn Pacing Computer-Initiated Flow Control #Xn Number of Xoff Characters Sent+++ATCR In-Band Escape Sequence Force Answer ModeEscape Sequences Breakatcr Out-of-Band Escape Sequence#Ixxxxxx Change Login Password Remote Configuration CommandsAtcr Remote Configuration Escape Sequence Go Back OnlineDPn Read Line Probe Data Line Probe Commands#Syyyyyy Change Setup Password DFn Format Line Probe DataRP Immediate Line Probe Diagnostic CommandsTn Respond to Remote Digital Loopback Signal Ln Display Line Probe DataUn Loopback Test Modes MT3334HD8 User Guide Registers S1 Ring Count RegistersS0 Number of Rings Until Modem Answers S2 Escape Code CharacterS5 Backspace Character S7 Time for Carrier Abort TimerS4 Line Feed Character S6 Wait Time for Dial ToneS9 Carrier Detect Response Time S10 Carrier Loss Disconnect Delay TimeS13 Remote Configuration Escape Character S11 Tone Dialing Spacing and DurationS24 PBX/CBX Disconnect Drop Time for DSR/CTS/CD S30 Inactivity TimerS34 Command Buffer Length After Online Escape Sequence S25 DTR Dropout TimeS43 Force V.34 Connect Speed S94 Out-of-Service TimeS37 DTR Busy-In Time S48 Maximum V.34 Connect SpeedExamples of Assigning Values AT Commands that Affect S-RegistersReading and Assigning S-Register Values Examples of Reading ValuesAT&E2$SP1#L3$R0$MB19200$SB115200$EB1S0=10&W0CR Testing the MT3334HD8 Test procedure Local Analog Loopback Test V.54 LoopTesting the MT3334HD8 Remote Digital Loopback Test V.54 LoopDial the remote modem and establish your online connection Local Digital Loopback Test V.54 Loop Local digital loopback testPage Warranty, Service, and Technical Support Limited Warranty ServiceTechnical Support Recording Product InformationLogging onto the Multi-Tech BBS Multi-Tech BBSDownloading a File Leaving a Message About CompuServeReading a Message BulletinsAbout the Multi-Tech Fax-Back Service About the InternetUsing FlashPro to Upgrade Firmware Upgrading the MT3334HD8 FirmwareMT3334HD8 User Guide Appendixes Appendix a Ascii Conversion Chart Ctrl Code HEX DECDial Pulses Appendix B Dial Pulses and TonesTone Dial Frequencies Figure B-2. Standard Dtmf frequencies Appendix C Result Code Summary Multi-Tech Result Codes &Q0Standard AT Result Codes &Q1 Register Unit Range Default Description Appendix D S-Register SummarySets fixed V.34 connect speed = 28800 bps Appendix E AT Command Summary ReturnCDn AT Command Summary $Fn Command Values Description Command Values Description $MBn RAn Command Values Description SFn Command Values Description #Vn Breakatcr Basic Procedure Appendix F Remote ConfigurationSetup Changing the Passwords Changing the Remote Escape CharacterIndex MT3334HD8 User Guide Index Long space break Pacing, 36, 37, 38 enable/disable, 38 ENQ/ACK Commands Loopback tests, 42, 43, 54, 56 tone detection