Appendix D, Register Summary | Multi-Tech Systems MT2834MR6 instruction

Appendix

Appendix D

S-Register Summary

Register	Unit	Range	Default	Description
S0	1 ring	0, 1–255	1	Sets the number of rings until the modem answers.
				ATS0=0 disables auto answer completely.
S1	1 ring	0–255	0	Counts the rings that have occurred.
S2	decimal 0–127		43 (+)	Sets ASCII code for the escape code character.
S3	decimal 0–127		13 (^M)	Sets ASCII code for the RETURN character.
S4	decimal 0–127		10 (^J)	Sets ASCII code for the LINE FEED character.
S5	decimal 0–127		8 (^H)	Sets ASCII code for the BACKSPACE character.
S6	1 sec	2–255	2	Time the modem waits for a dial tone before aborting a call.
		4–255†	4†
		4–7‡	4‡
S7	1 sec	1–255	45	Time the modem waits for a carrier signal before aborting a call.
		1–45*	45*
		1–55‡	55‡
S8	1 sec	0–255	2	Length of the pause by a comma character in a dialing command.
		4–255†	4†
		4–7‡	4‡
S9	100 ms	1–255	6	Sets delay between when the modem detects a valid carrier
				signal and when it turns on its CD circuit.
S10	100 ms	1–254,	7	Sets how long a carrier signal must be lost before the modem
		255		disconnects. S10=255 causes the modem to not disconnect with
				loss of carrier.
S11	1 ms	1–255	70	Sets spacing and duration of dialing tones. 50 ms is the
		80-255*	80*	recommended minimum.
		80-255‡	80‡
S13	decimal 0, 1–127		37 (%)	Sets ASCII code for remote configuration escape character.
				S13=0 disables remote configuration.
S17	10 ms	1–255	25	Sets the length of the break time (space) sent to the local PC
				when the modem receives a remote break.
S24	50 ms	0–255	20	Sets the time the DSR, CTS, and CD signals drop before going
				high again. Used for some PBX and CBX phone systems.
S25	100 ms	0, 1–255	0	Sets the time the DTR signal must be dropped before the modem
				dis-connects. The 0 default equals 50 ms.
S30	1 min.	0, 1–255	0	Sets how long the modem waits after the last character is
				received or transmitted before it disconnects. The 0 default
				disables the timer.
S32	100 ms	0–255	20	Sets the time the modem will wait for a RETURN to be entered
				during escape sequence execution.

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Multi-Tech Systems MT2834MR6 manual Appendix D, Register Summary, Register Unit Range Default Description

Contents

User Guide Revision Date Description Trademarks Contents Registers Warranty & Service Index 116 Introduction Introduction Manual Organization Description FCC Fax Update FCC Regulations for Telephone Line Interconnection Canadian Limitations Notice Technical Specifications Diagnostics Bell 103/113300 bps Fax Carrier Power Supply Modem LED Indicators Busy SwitchSpeed Data Rate bps LED State 10 MT2834MR6 Installation Notes Safety Warnings Dialing and Answering Dial-Up Automatic Answering Dial-Up Handshaking Details Call Termination AT Commands Working with AT Commands Modes of Operation Command Structure Command Editing AT Commands Baud adjust Flow control disabledModem baud rate Serial port baud rate Force answer mode Alternate out-of-band escape sequenceEscape sequence selection Go back online Dialing Commands Default noneDial = phone number Dial Modifier Commands Default PDefault R0 Pulse or Tone Dialing Or 4 through 255 seconds International models ATDT1028806127853500 $123456789 Phone Number Memory Commands NdNe Number Linking = 0 or = 1 or Default none T14082345678 P9,T14089876543 Configuration Storage and Recall Commands Default &W1Default &F8 = 0, 8, or AT&W1 default ATZAT&F8&W0 AT&F9&W0 Modem Response Result Code Commands Default Default &A0Result Codes and Call Progress Selection Online Connection Commands #An Auto Speed Detection Default #A0Default B0 DCn AT Command Control = 0 or Default %DC0 CDn Cleardown at Disconnect = 0 or Default &CD0 DTn Dtmf Detection = 0 or Default DT0#Fn Fallback Modes = 0, 1, or Default #F2 Default &G0 models outside U.K Default *H0Default &P0 Models outside U.K G2 U.K. models only #T0 disables TCM #T1 enables TCMDefault Y0 Issued V.34 Commands RS-232 Interface Commands Default &C1Default &D2 Default &R1 Default &S1 Go high againS0 forces DSR high S1 allows DSR to act normally, that is, to follow CD Error Correction and Data Compression Commands Default &E1Default &E15 #Ln Error Correction Modes Default #L0 $En Error Correction at 300 bps = 0 or Default $E0 $An Autoreliable Buffering = 0 or Default $A0$Rn Retransmit Count = 0 or Default $R0 Speed Conversion Commands $SBn Serial Port Baud Rate = speed Default $SB57600 $SB300$SB1200 $SB2400 Immediate Action Commands Rate Renegotiation Flow Control Commands BSn Maximum Reliable Block Size = 0 or Default &BS1$EBn Asynchronous Word Length = 0 or Default $EB0 Flow Control Disable Default &E6 Default &E8Non-Error Correction Mode Flow Control Default &E10 Default &E13 #Xn Number of Xoff Characters Sent = 0 or Default #X0Pacing Computer-Initiated Flow Control = 12 or Escape Sequences Remote Configuration Commands Atcr Remote Configuration Escape Sequence Line Probe Commands Diagnostic Commands Registers Registers Default 13 M Default 10 JDefault 8 H Return Character Time for Carrier Abort Timer Default 45 North America and InternationalUnit 1 second Range 1-255 U.S.A Maximum S11 value is 255 ms 255 units Registers Registers Reading and Assigning S-Register Values Examples of Assigning 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 Data Compression MNP Classes V.42 Mode Select Command #L 1 #L0 Command2 #L1 Command 3 #L2 Command Non-Error Correction Mode &E0 Reliable Mode &E2Autoreliable Mode &E1 Modes of Operation Flow Control Flow control and pacing Modem-Initiated Flow Control 1 XON/XOFF Flow Control &E5Hardware Flow Control &E4 Non-Error Correction Mode Flow Control &E10 and &E11 Pacing &E131 XON/XOFF Pass-Through &E7 Hewlett Packard ENQ/ACK Pacing &E9 10.1 V.42 Error Correction Modes Non-Error Correction Mode Flow ControlModem-Initiated Flow Control 10.3 XON/XOFF Pass-Through MNP Error Correction LAP-M Error CorrectionResult Codes Speed Conversion Baud Adjust $BA Modem Baud Rate $MB Serial Port Baud Rate $SB Related Commands Autoreliable Buffering $AMaximum Block Size &BS Autoreliable Fallback Character $F 13.5 V.42 Error Correction at 300 bps $E SummaryRetransmit Count $R Testing & Troubleshooting Testing and Troubleshooting Test Procedure Local Analog Loopback Test V.54 Loop Remote Digital Loopback Test V.54 Loop Remote digital loopback test Local Digital Loopback Test V.54 Loop Local digital loopback test Warranty & Service Multi-Tech Systems, Inc. Warranty & Repairs Policies Warranty2 U.S. and Canadian Customers International Customers outside U.S.A. and Canada International Distributors Repair Procedures for U.S. and Canadian Customers Repair Procedures for International CustomersRepairs Technical Support Internet SiteCountry Telephone Appendices Ascii Conversion Chart Appendix a Appendix B Dial Pulses Tone Dial Frequencies Figure B-2. Standard Dtmf frequencies Appendix C Result Code Summary Standard AT Result Codes &Q1 Register Unit Range Default Description Appendix DRegister Summary S34 AT Command Summary Command Values DescriptionAppendix E CDn 100 101 102 103 104 105 RS-232C Interface Specifications Signal Information Negative PositiveAppendix F Functional Description of the RS-232C Signals Transmitted Data TD Pin 2 To modem Test Voltage +V Pin From modem External Transmit Clock XTC Pin To modem Cable and Connector Diagrams Appendix G Appendix H Introduction to MultiTech Escape Methods How to Select an Escape Method Escape Method 1 +++ATCR Registers and Escape Sequence Aborting an Escape Sequence Introduction to Remote Configuration Basic ProcedureSetup Changing the Passwords Changing the Remote Escape Character Index Index 118 119 120 121 122 S000326A