121 | Multi-Tech Systems MT2834MR6 instruction

Index

					P
Pacing	49, 50, 73
enable/disable				51
ENQ/ACK			50, 73
Pacing command				51, 74
Parameters		22, 32, 47
default 22, 41
Parity	49
PBX phone systems					27, 60
PBX/CBX disconnect drop time								41, 42, 60
Power	14
Pulse ratios, setting					92
Pulse-Dial command 27
Pulse-Dial Ratios command							38
					Q
Quiet Answer command						28
					R
Rate Renegotiation command							48
RD signal		15
Read Line Probe Data command								54
Reliable mode			43, 49
Reliable Mode command						43, 70
Remote configuration escape character									60
Remote Digital Loopback command 55
Repeat Last Command command 47
replacement parts				89
Reset Modem command						33
Response commands					34
Result codes			22, 34, 35, 75
call progress selection						35
enable/disable				34
extended codes				35
Multi-Tech			94
set selection 34
standard		95
summary		94
verbose/terse selection						35
Result Codes (Multi-Tech or Standard AT)
command			34
Result Codes (Verbose/Terse) command									35
Result Codes and Call Progress Selection
command			27, 35

Result Codes Enable/Disable command 34

Retrain command	48
Retransmit Count command 44, 79
Return character	58

Return to Command Mode command 28 Reverse Originate/Answer Mode command 27 Rings

counting		57
number till answer 57, 63
square wave detection						38
ROM (read-only memory)						22, 32, 33, 64
RS-232C		41, 42, 49
cable and connector diagrams 110
controls		41, 42
specifications			106
RTS signal		41
CTS interaction				42
					S
S-registers		47, 63, 113
assigning a value				63
definition		57
reading		63
S0	57, 63
S1	57
S10	19, 59
S11	60
S13	60
S17	60
S2	57
S24	41, 42, 60
S25	60
S3	58
S30	19, 61
S32	61, 112, 113
S34	61, 113
S36	61
S37	61
S4	58
S43	62
S48	62
S5	22, 58
S6	26, 35, 58
S7	19,	21,	28,	29,	59,		63
S8	28, 59, 63

121

Image 121

Multi-Tech Systems MT2834MR6 manual 121

Contents

User Guide Trademarks Revision Date Description Contents Registers Warranty & Service Index 116 Introduction Manual Organization Introduction Description FCC Regulations for Telephone Line Interconnection FCC Fax Update Canadian Limitations Notice Technical Specifications Bell 103/113 Diagnostics300 bps Fax Carrier Power Supply Busy Switch Modem LED IndicatorsSpeed Data Rate bps LED State Safety Warnings 10 MT2834MR6 Installation Notes Dialing and Answering Dial-Up Handshaking Details Dial-Up Automatic Answering Call Termination AT Commands Modes of Operation Working with AT Commands Command Editing Command Structure AT Commands Flow control disabled Baud adjustModem baud rate Serial port baud rate Alternate out-of-band escape sequence Force answer modeEscape sequence selection Go back online Default none Dialing CommandsDial = phone number Default P Dial Modifier CommandsDefault R0 Pulse or Tone Dialing Or 4 through 255 seconds International models ATDT1028806127853500 $123456789 NdNe Number Linking = 0 or = 1 or Default none Phone Number Memory Commands P9,T14089876543 T14082345678 Default &W1 Configuration Storage and Recall CommandsDefault &F8 = 0, 8, or ATZ AT&W1 defaultAT&F8&W0 AT&F9&W0 Modem Response Result Code Commands Default &A0 DefaultResult Codes and Call Progress Selection #An Auto Speed Detection Default #A0 Online Connection CommandsDefault B0 DCn AT Command Control = 0 or Default %DC0 DTn Dtmf Detection = 0 or Default DT0 CDn Cleardown at Disconnect = 0 or Default &CD0#Fn Fallback Modes = 0, 1, or Default #F2 Default *H0 Default &G0 models outside U.KDefault &P0 Models outside U.K G2 U.K. models only #T1 enables TCM #T0 disables TCMDefault Y0 Issued V.34 Commands Default &C1 RS-232 Interface CommandsDefault &D2 Default &R1 Go high again Default &S1S0 forces DSR high S1 allows DSR to act normally, that is, to follow CD Default &E1 Error Correction and Data Compression CommandsDefault &E15 #Ln Error Correction Modes Default #L0 $An Autoreliable Buffering = 0 or Default $A0 $En Error Correction at 300 bps = 0 or Default $E0$Rn Retransmit Count = 0 or Default $R0 Speed Conversion Commands $SB300 $SBn Serial Port Baud Rate = speed Default $SB57600$SB1200 $SB2400 Immediate Action Commands Rate Renegotiation BSn Maximum Reliable Block Size = 0 or Default &BS1 Flow Control Commands$EBn Asynchronous Word Length = 0 or Default $EB0 Flow Control Disable Default &E8 Default &E6Non-Error Correction Mode Flow Control Default &E10 #Xn Number of Xoff Characters Sent = 0 or Default #X0 Default &E13Pacing Computer-Initiated Flow Control = 12 or Escape Sequences Atcr Remote Configuration Escape Sequence Remote Configuration Commands Line Probe Commands Diagnostic Commands Registers Registers Default 10 J Default 13 MDefault 8 H Return Character Default 45 North America and International Time for Carrier Abort TimerUnit 1 second Range 1-255 U.S.A Maximum S11 value is 255 ms 255 units Registers Registers Examples of Assigning Values Reading and Assigning S-Register ValuesExamples of Reading Values AT Commands Affecting S-Registers Error Correction, Data Compression & Speed Conversion Error Correction, Data Compression, and Speed Conversion How V.42 Detects and Corrects Errors MNP Classes Data Compression 1 #L0 Command V.42 Mode Select Command #L2 #L1 Command 3 #L2 Command Reliable Mode &E2 Non-Error Correction Mode &E0Autoreliable Mode &E1 Modes of Operation Flow control and pacing Flow Control 1 XON/XOFF Flow Control &E5 Modem-Initiated Flow ControlHardware Flow Control &E4 Pacing &E13 Non-Error Correction Mode Flow Control &E10 and &E111 XON/XOFF Pass-Through &E7 Hewlett Packard ENQ/ACK Pacing &E9 Non-Error Correction Mode Flow Control 10.1 V.42 Error Correction ModesModem-Initiated Flow Control 10.3 XON/XOFF Pass-Through LAP-M Error Correction MNP Error CorrectionResult Codes Speed Conversion Modem Baud Rate $MB Baud Adjust $BA Serial Port Baud Rate $SB Autoreliable Buffering $A Related CommandsMaximum Block Size &BS Autoreliable Fallback Character $F Summary 13.5 V.42 Error Correction at 300 bps $ERetransmit Count $R Testing & Troubleshooting Testing and Troubleshooting Local Analog Loopback Test V.54 Loop Test Procedure Remote digital loopback test Remote Digital Loopback Test V.54 Loop Local digital loopback test Local Digital Loopback Test V.54 Loop Warranty & Service Warranty Multi-Tech Systems, Inc. Warranty & Repairs Policies2 U.S. and Canadian Customers International Distributors International Customers outside U.S.A. and Canada Repair Procedures for International Customers Repair Procedures for U.S. and Canadian CustomersRepairs Internet Site Technical SupportCountry Telephone Appendices Appendix a Ascii Conversion Chart Dial Pulses Appendix B Figure B-2. Standard Dtmf frequencies Tone Dial Frequencies Result Code Summary Appendix C Standard AT Result Codes &Q1 Appendix D Register Unit Range Default DescriptionRegister Summary S34 Command Values Description AT Command SummaryAppendix E CDn 100 101 102 103 104 105 Signal Information Negative Positive RS-232C Interface SpecificationsAppendix F Transmitted Data TD Pin 2 To modem Functional Description of the RS-232C Signals Test Voltage +V Pin From modem External Transmit Clock XTC Pin To modem Appendix G Cable and Connector Diagrams Introduction to MultiTech Escape Methods Appendix H Escape Method 1 +++ATCR How to Select an Escape Method Aborting an Escape Sequence Registers and Escape Sequence Basic Procedure Introduction to Remote ConfigurationSetup Changing the Remote Escape Character Changing the Passwords Index Index 118 119 120 121 122 S000326A