Multitech MT2834MR6 Guia do Utilizador descarregar pdf (Página 48)

Chapter 3 - AT Commands

&RN Rate Renegotiation

Default: none

The &RN command forces the modem to perform a rate renegotiation while online. To issue

it, you must first escape to command mode by issuing the +++AT<CR> command.

&RR Retrain

Default: None

The &RR command forces the modem to perform an immediate retrain while online. To

issue it, you must first escape to command mode by issuing the +++AT<CR> command.

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User Guide 1
Revision Date Description 2
Contents 3
1.1 Introduction 8
1.2 Manual Organization 8
1.3 Description 9
1.4.1 FCC Fax Update 10
Chapter 1 - Introduction 11
1.6 Technical Specifications 12
1.7 Power Supply 14
1.8 Modem LED Indicators 15
1.9 Busy Switch 15
1.11 Safety Warnings 16
2.1 Introduction 18
2.4 Call Termination 19
Chapter 3 - AT Commands 20
3.1 Working with AT Commands 21
3.2.2 Command Structure 22
3.3.3 Command Editing 22
&RA Asymmetric bit rate 24
3.2 Dialing Commands 26
3.3 Dial Modifier Commands 27
3.8 V.34 Commands 40
3.9 RS-232 Interface Commands 41
3.12 Flow Control Commands 49
3.13 Escape Sequences 52
3.15 Line Probe Commands 54
3.16 Diagnostic Commands 55
Chapter 4 - S-Registers 56
4.1 Introduction 57
4.2 S-Registers 57
Chapter 5 - Error Correction 65
5.1 Introduction 66
5.3 Data Compression 68
5.4 MNP Classes 68
5.6 Modes of Operation 70
5.7 Flow Control 71
5.8.1 XON/XOFF Flow Control ( 72
5.8.2 Hardware Flow Control ( 72
&E13 73
(autoreliable mode) or 74
5.11 Result Codes 75
5.12 Speed Conversion 75
5.12.1 Baud Adjust ( 76
5.12.2 Modem Baud Rate ($MB) 76
5.13 Related Commands 78
5.14 Summary 79
6.1 Introduction 81
6.2.1 Test Procedure 82
6.3.1 Test Procedure 83
6.4.1 Test Procedure 84
7.1.1 Warranty 86
7.2 Repairs 88
7.3 Technical Support 89
7.4 Internet Site 89
Appendices 90
Appendix A 91
    92
Tone Dial Frequencies 93
Appendix C 94
Appendix D 96
Appendix E 98
Appendix 100
Appendix F 106
Appendix G 110
APPENDIX H 111
Aborting an Escape Sequence 113
APPENDIX I 114
Changing the Passwords 115
S000326A 123

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