Multi-Tech Systems MT5600DSVD PCM Code Selection, An Maximum MNP Block Size, Bn Transmit Break

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MultiModemDSVD User Guide

 

4 AT Commands, S-Registers, and Result Codes

Command:

%U

PCM Code Selection

Values:

 

n = 0 or 1

Default:

 

0

Description:

 

 

Specifies the PCM code type for 56K modulation. Note, how-

 

 

 

ever, that the modem automatically selects the code type if the

 

 

 

server sends the proper ID.

 

%U0

Selects µ-Law coding—used in North America and Japan.

 

%U1

 

Selects A-Law coding—used outside North America and Japan.

 

 

 

 

 

 

 

Note: See also the +MS= command.

 

 

 

 

Command:

\An

 

Maximum MNP Block Size

Values:

 

 

n = 0, 1, 2, or 3

Default:

 

1

Description:

\A0

 

64-character maximum block size.

 

\A1

128-character maximum block size.

 

\A2

192-character maximum block size.

 

\A3

256-character maximum block size.

Command:

\Bn

 

Transmit Break

Values:

 

 

n = 0–9 in 100 ms units

Default:

 

3

Description:

 

 

In non-error-correction mode only, sends a break signal of the

 

 

 

specified length to a remote modem. Works in conjunction

 

 

 

with the \K command.

Command:

\Kn

 

Break Control

Values:

 

 

n = 0–5

Default:

 

5

Description:

 

 

Controls the response of the modem to a break received from

 

 

 

the computer, the remote modem, or the \B command. The

 

 

 

response is different for each of three different states.

 

 

 

Data mode. The modem receives the break from the computer:

 

\K0

 

Enter online command mode, no break sent to the remote mo-

 

 

 

dem.

 

\K1

 

Clear data buffers and send break to the remote modem.

 

\K2

 

Same as \K0.

 

\K3

 

Send break immediately to the remote modem .

 

\K4

 

Same as \K0.

 

\K5

 

Send break to the remote modem in sequence with the trans-

 

 

 

mitted data.

 

 

 

Data mode. The modem receives the break from the remote

 

 

 

modem during a non-error-corrected connection:

 

\K0

 

Clear data buffers and send break to the computer.

 

\K1

 

Same as \K0.

 

\K2

 

Send break immediately to the computer.

 

\K3

 

Same as \K2.

 

\K4

 

Send break to the computer in sequence with the received

 

 

 

data.

 

\K5

 

Same as \K4.

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Contents Page Record of Revisions Introduction AT Commands, S-Registers & Result Codes Appendix E Upgrading the Modem Introduction Features IntroductionProduct Description Data Related Manuals What Is in Your Modem Package?Installation You supply Safety WarningsWhat You Will Need We supplyMount the Feet Change the Speaker JumperOpening the Modem Location of speaker jumper Changing the Speaker JumperConnect the Modem to Your System RS232 ConnectionLine Connection Microphone Connection Power ConnectionPower-On Test Phone ConnectionInstall the Modem Driver Installing the Modem DriverRemoving Your Old Modem Driver Install and Configure Your Software Operation Front Panel Connecting to the Internet Configuring the ModemDial-Up Networking in Windows 95/98 To install and run Dial-Up Networking in Windows 95 orTo dial your Internet access provider Dial-Up NetworkingTo install Dial-Up Networking Dial-Up Networking in Windows MeDial-Up Networking in Windows NT Dial-Up Networking in Windows Select Start Settings Network and Dial-up ConnectionsTo Originate a Voice Call in Speakerphone Mode Fax OperationVoice Operation To Answer a Voice Call in Speakerphone Mode To Originate a Dsvd Call Using the HeadsetTo Answer a Dsvd Call Using the Headset References AT Commands Registers Result Codes AT Commands AT Command Summary Information Request Echo Command Mode CharactersDS=y Dial Stored Telephone Number Hook ControlModulation Handshake Monitor Speaker VolumeMonitor Speaker Mode Display Legacy ParametersSelect Register Return Online to Data ModeResult Codes Enable/Disable Pulse DialingLong Space Disconnect Modem ResetConnect Message Control Result Code SelectionModem-Initiated Flow Control Error Correction ModesData Carrier Detect DCD Control Data Terminal Ready DTR ControlTelephone Jack Control Load Factory Settings42bis Data Compression 22bis Guard Tone ControlPulse Dial Make/Break Ratio Communications ModeAsynchronous Communications Mode Test CommandsDisplay Last Connection Statistics Display Current ConfigurationStore Current Configuration Select Profile for Hard ResetData Compression Control Line Signal LevelLine Signal Quality Zy=x Store Telephone Number\Kn Break Control PCM Code Selection\An Maximum MNP Block Size \Bn Transmit Break\Vn Single Line Connect Message \Nn Error Correction Mode SelectionSubparameters Modulation SelectionMNP Extended Services Command #CID=n Caller ID Distinctive Ring ControlFlash Memory Download Command -SMS=nData/DSVD Mode Voice CommandsCommand $SBn Serial Port Baud Rate Command +++ATCR Escape SequenceCommand #MDL? Identify Model Dsvd Enable/DisableCommand #BDR=n Baud Rate Select Command #CLS=n Data, Fax, or Voice/Audio SelectRegisters Register Unit Range Default DescriptionS32 S37 Register Unit Range Default Description S86 Terse Verbose Description Result CodesProtocol ALT +FCERROR Solving Problems None of the Indicators Light Light Modem Does Not Respond to CommandsModem Dials But Cannot Connect Modem4Disconnects While Online Modem4Cannot Connect When Answering File Transfer4Is Slower Than It Should BeData Is Being Lost There Are Garbage4 Characters on the Monitor Modem4Doesn’t Work with Caller IDFax and Data4Software Can’t Run at the Same Time Appendixes FCC Part 68 Telecom Appendix a Regulatory ComplianceIndustry Canada FCC PartCanadian Limitations Notice Fax Branding StatementEMC, Safety, and R&TTE Directive Compliance International Modem RestrictionsNew Zealand Telecom Warning Notice South African Notice Appendix B Technical Specifications MultiModemDSVD User Guide Technical Specifications Voice Compression Local Analog Loopback Test V.54 Loop Test procedureFigure C-2. Remote digital loopback test Remote Digital Loopback Test V.54 LoopFigure C-3. Local digital loopback test Local Digital Loopback Test V.54 LoopMultiModemDSVD User Guide Loopback Tests North American Products Limited WarrantyOnline Warranty Registration ServiceInternational Products Technical SupportInternet Sites Ordering AccessoriesIdentify the Modem Firmware Upgrade OverviewClear Your Stored Paramenters Download the Upgrade FileExtract the Upgrade Files Identify the Current Firmware VersionRestore Your Parameters Upgrade the Modem’s FirmwareIndex MultiModemDSVD User Guide Index MultiModemDSVD User Guide Index MultiModemDSVD User Guide Index