Asynchronous Word Length Selection $EB 336 Only | Black Box MD1641A

SERIES II INTELLIGENT DATA/FAX MODEMS

Asynchronous Word Length Selection $EB (336 Only)

The Series II Modem 336 (MD1641A) has an 11-bit capacity when operating asynchronously. The $EB command selects between 11-bit and 10-bit operation. AT$EB1 enables 11-bit format (1 start bit, 8 data bits, 1 parity bit, and 1 stop bit). AT$EB0 (default) enables 10-bit format (1 start bit, 7 data bits, 1 parity bit, and 1 stop bit). $EB is functional in both command and on-line mode. $EB0 automatically detects parity when any AT command is issued.

AT$EB0 = Use 10-bit words

AT$EB1 = Use 11-bit words

The factory default setting is AT$EB0.

Parity Selection #P

The #P command enables the setting of parity. AT#P0 selects no parity. AT#P1 selects odd parity. AT#P2 selects even parity and is the default value. Note when setting up your data comm software, it is critical that both your remote and local system's parity selection be set identically.

AT#P0 = no parity

AT#P1 = odd parity

AT#P2 = even parity

The factory default setting is AT#P2.

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Black Box MD1641A, MD1640A manual Asynchronous Word Length Selection $EB 336 Only, Parity Selection #P

Contents

Series II Modem Series II Modem 336+ Series II Modems Series II Intelligent DATA/FAX Modems Contents Manual Dial and Automatic Answer Command Mode Callback Security and Remote Configuration Modem TestingRegisters DIP-Switch Settings Appendix a TroubleshootingOther Appendixes Introduction and Description Introduction How To Use This Manual Software Configuration Installation and ConnectionAT Command Mode Operation Manual Dial and Automatic Answer Callback and Remote Configuration Testing Your ModemDIP-Switches Modem Features What is in Your Modem Package? Fax Features Technical Specifications Intelligent Features Mode of OperationCommand Buffer Modulation Frequencies Fax CarrierLease Line Restoral Carrier Frequencies Diagnostics ConnectorsIndicators Operating Temperature Modem LED Indicators Power Introduction and Description Controls on PC Board Safety Warnings Installation and Connection Installation Series II Modem 336 MD1641A Connections Series II Intelligent DATA/FAX Modems Is Your Series II Modem Ready for Use? Operating Your Series II Modem Simple Operations Answer/Originate Voice/Data Toggle Switch Serial Port Limitations Introduction How Can You Identify Your Uart Type? Software Configuration COMnFIFO=1 16550 Uart and Windows Configuring Software for Your Modem Configuring Your Software PC Initialization Strings Changing Default ParametersAT &F X4 S0=0 M AT &F X4 S0= 2 M Macintosh Initialization Other ParametersAT &F X4 M AT &F X4 &E5 &E13 &D0 M Configuring Software for the Remote System Configuring Software for Your ComputerSoftware Configuration AT &F9 &W0 CR Terminal Emulation When to Disable Data CompressionFile Transfer Protocols User Guide for Series II Modems Disabling Error Correction AT &F S0=0 X4 &E14 MAT &F S0=0 X4 &E0 M Dialing/On-Line/Answering Manual Dial and Automatic Answer Series II Intelligent DATA/FAX Modems Manual Dial Backup Call Termination 336+ Only Dial Backup and Leased Line Restoral 336+ OnlyAutomatic Leased Line Restoral Operation 336+ Only Series II Intelligent DATA/FAX Modems Manual Call Origination Dial-Up Operation 336+ Only Automatic Answering Handshaking Details Manual Answering Call Termination Abort Timer AT Command Editing Command Mode Functional Modes Command Mode Functional Modes Summary of AT Commands Memorize Phone Numbers #L1 #L0#L2 #L3 E15 E14$BA1 +++ATCR Sr? Result CodesSr= #RCBNxx Q1 Standard AT Result Codes Q0 Series II Result Codes Dialing Commands Dialing Action Commands Dial Command DContinuous Redial a or DTR Dialing $D Dialing a Stored Number N Dial Modifier Commands Voice/Data Dialing $VDPulse or Tone Dial P or T Set Pulse Dial Ratios &P Automatic Pauses in DialingLong Space Disconnect Y Return to Command Mode after Dial Command Execution Reverse the Mode of Operation RWait for New Dial-Tone W Calling Card Detect Tones $ Flash On HookQuiet Answer @ ATDT101099907247465500$0123 4567 8910 Storing Phone Numbers D...N Phone Number Memory CommandsNumber Linking NN ATX4&E1&E5&E13&E15DT17247465500N3 Listing Numbers Stored in Memory L Loading Factory Defaults &F Configuration and Default Storage Commands Modem Reset Z 32terbo Enable/Disable #V 336 OnlyUnix Uucp Spoofing $SP Synchronous Transmit Clock Select &X Async/Sync Mode Switching &M Echo Command Mode Characters E Command Response Result Code CommandsResult Codes Enable/Disable and No Response Answer Q Chap 5 Command Modeter Result Codes Basic and Extended and Call Progress Selection Result Codes Verbose/Terse Command Mode Enable/Disable Trelis Coded Modulation #T Phone Line Conditioning CommandsGuard Tones &G Phone Line Monitoring Speaker M Fallback Modes When On-Line #F Enable/Disable Lowspeed Fast Connect $FC 336+ OnlyCleardown at Disconnect &CD 7 RS232C Interface Control Commands Auto Speed Detect #ACarrier Detect Control &C Clear to Send Control &R Data Terminal Ready Control &D Data Set Ready Control &S Error Correction CommandsCTS/RTS Interaction Control &RF DSR/CD Interaction Control &SF Auto-Reliable Mode &E1 Normal Mode &E0 Mode Select #L Reliable Mode &E2Originate Mode Answer Mode Auto-Reliable Buffering $A Enable/Disable Auto Reliable Fallback Character $F Retransmit Count $R Error Correction/300bps $E Flow Control Commands Modem Terminal Hardware Flow Control &E4 Xon/Xoff Pass-Through &E7 Xon/Xoff Flow Control &E5 Normal Mode Modem Flow Control On &E11 Send Xon/Xoff Characters #XHewlett-Packard ENQ/ACK Pacing &E9 Maximum Block Size &BS Terminal/Computer Initiated Pacing &E13 Parity Selection #P Asynchronous Word Length Selection $EB 336 Only #X1 = #X0 = Speed Conversion Commands Enq/Ack Pacing CommandsNormal Mode Modem Flow Control Commands Modem Baud Rate $MB Speed Conversion $BA Serial Port Baud Rate $SB Help Screens $H Immediate Action Commands Windows 95 Autodetect Inquiry Inquiry for Product Code Listing On-Line Diagnostics L8 Listing Current Operating Parameters L5 L7Listing S-Register Values L6 On-line diagnostics information On or Off Hook H Break Atcr Line Probe Commands Force Answer Mode aExiting Command Mode, Going Back On-Line O Immediate Action Line Probe Commands Format of Line Probe Graph or Table Commands DF0DP1 DF1 Rings Which Have Occurred Number of Rings Until Modem Answers Escape Code Character Return CharacterLine Feed Character Backspace Character Time for Carrier Abort TimerWait Time for Dial Tone Pause Time for Comma Carrier Detect Response Time S10 Carrier Loss Disconnect Delay Time S13 Remote Configuration Escape Character S15 Callback Time DelayS11 Tone Dialing Tone Spacing and Duration S16 Callback Attempts S17 Changing Break TimeS18 Automatic Leased Line Restoral 336+ Only S19 Dial-Back Timer 336+ Only S24 PBX/CBX Disconnect Drop Time for DSR/CTS/CDS25 DTR Dropout Time S29 Local Inactivity Timer S26 Failed Password Attempts S32 Time Elapse for Escape Sequence S30 Inactivity Timer S36 Time Between DTR Inactive and Modem Off-Hook S37 Time Between DTR Active and Modem On-HookS48 Program V.34bis Connect Speeds Examples of Assigning Values Reading and Assigning S-Register Values AT Command and S-Register Summary Examples of Reading ValuesATS0=30S3?, and ATS7=55S7? Callback Feature Description Callback Security Remote Configuration Remote Configuration Description Callback Security and Remote Configuration To change your Remote Configuration feature status Error To set parity of the password/message prompt To turn your modems Callback Security feature on and off AT#DB2CRÊorÊAT#DB1CR AT#IxxxxxxxxxxCR xxxxxxxxxx from TableAT#CBN0xxxxxxxxxxCR AT#CBN1xxxxxxxxxxCR AT#SyyyyyyyyyyCR yyyyyyyyyy from Table Password Callback Operational Sequence Procedures Remote Configuration Operation Procedures StepProcedure Remote Configuration Procedures Remote Configuration and Callback Security AT Commands Assign Passwords for Callback Phone Numbers #CBNCallback Security Enable/Disable #DB Change Setup Password #S Change Login Password #IErase Callback Password #RCBNxx Erase Callback Phone Number #RDNxx Remote Configuration Character S13 Remote Configuration/Callback Security S-RegistersCallback Time Delay S15 Callback Attempts S16 Local Inactivity Timer S29 Failed Password Attempts S26 Modem Testing Local Analog Loopback Test/V.54 Loop Modem Testing Digital Loopback Test local/manual Digital Loopback Test/V.54 Loop 2 Local/Manual 119 Digital Loopback Test remote/automatic Digital Loopback Test/V.54 Loop 2 Remote/Automatic Back-to-Back Test 122 Local Analog Loopback Test Synchronous Mode Synchronous Mode Testing Digital Loopback Test Local/Manual Synchronous Mode Digital Loopback Test Remote/Automatic Synchronous Mode 126 DIP-Switch Settings Series II Modem 336+ MD1640A PC Board DIP-Switch Option Settings 129 130 Switch #4 AS/400 Mode Synchronous Mode/Leased Line/Dial-Up 131 132 133 134 135 Speaker Volume Control Function Position Effect Recording Option Configurations AT vs. Series II Result Codes DIP Switches #13-16 None of the LEDs Light When the Modem Is On Possible Causes and Solutions Modem Does Not Respond to Commands 141 Modem Dials But Cannot Make a Connection 143 Modem Disconnects While On-line Modem Cannot Connect When Answering Am Losing Data File Transfer Is Slower Than It Should Be Am Getting Garbage Characters on the Monitor Modem Model No Contacting Black Box Recording Modem Information Shipping and Packaging Making the Call Upgrading the Series II Modem’s Firmware Appendix B Dial Pulse and Tone-Dial Frequencies Dial PulsesTone Dial Frequencies 697 770 852 941 1209 Digits 1336 1633 Command Appendix C Command SummaryDescription $An $BAn BSnCDn DsNd DFn DPn$Dn $EBn $En#Fn $FCn $Hn Command Values Description #Ln $MBnNdNe #Pn $RnRFn $SBn Sr=nSFn $SPn $VDn #Tn #Xn 160 Command Description #DBn Callback Security/Remote Configuration Command Summary#CBNyyxxxxxx + Dxxxxxx???Nxx Password Command Summary 25bis Commands Appendix D DIP-Switch Summary Asynchronous ModeDIP-Switch Condition Effect Synchronous Mode 166 Appendix E S-Register Summary Appendix E S-Register Summary S15 S13 S24 S36 Appendix F Result Code Summary EffectDigit Words 172 Appendix F Result Code Summary Appendix G V.25bis Operation Delayed and Forbidden Numbers 25bis Operation Appendix G V.25bis Operation 25bis Set-Up and Initialization 25bis DIP-Switches 25bis Mode AT Commands 25bis Responses Result Codes 25bis AT Commands Change Serial Baud Rate CSP Command Enable/Disable V.25bis Mode $V Command Dial Phone Number Provided CRN Command Listing Delayed Phone Numbers RLD Command Listing Forbidden Phone Number RLF CommandDisregard or Connect to Incoming Calls DIC or CIC Command DTR Dialing $D Command Italy ITU V.25bis Country Specific Information Austria Belgium France Singapore Appendix H Series II Modem Cables Appendix H Series II modem cables 188 Appendix I RS232C Interface Specifications Appendix I RS232C Interface Specifications Request To Send Pin 4, RTS CA Received Data Pin 3, RD BBDirection to modem Direction from modem Clear To Send Pin 5, CTS CB Signal Ground Pin 7, SG ABData Set Ready Pin 6, DSR CC Data Carrier Detect Pin 8, CD CF Transmit Clock Pin 15, TC DB Receive Clock Pin 17, RC DDData Terminal Ready Pin 20, TR or DTR CD Ring Indicator Pin 22, RI CE Terminal Busy Out of Service Pin 25, OOSExternal Transmit Clock Pin 24, XTC FCC and IC EMI/RFI Statements Appendix J Regulatory Information FCC Part 68 Regulations for Telephone-Line Interconnection Appendix J Regulatory Information 196 197 Canadian Limitations Notice Copyright 2000. Black Box Corporation. All rights reserved