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Contents
Chapter 1 - Introduction and Description......................................................................... 5
1.1 Introduction...................................................................................................................................... 6
1.2 How To Use This Manual................................................................................................................. 6
1.3 Modem Features ............................................................................................................................. 7
1.3.1 2834 Series Features................................................................................................................ 8
1.4 Fax Features ................................................................................................................................... 8
1.5 Technical Specifications .................................................................................................................. 9
1.6 Power .............................................................................................................................................. 10
1.7 Modem LED Indicators .................................................................................................................... 11
1.8 Controls on PC Board ..................................................................................................................... 12
Chapter 2 - Installation and Connection......................................................................... 13
2.1 What is in Your Modem Package? .................................................................................................. 14
2.2 Installation ....................................................................................................................................... 14
2.2.1 Safety Warnings ........................................................................................................................ 15
2.2.2 Installation Procedure ............................................................................................................... 15
2.3 Installing Data Communications Software ....................................................................................... 16
Chapter 3 - Software Configuration and Modem Basics .............................................. 17
3.1 Introduction...................................................................................................................................... 18
3.2 Configuring Your Software............................................................................................................... 18
3.2.1 ConfiguringSoftware for Your Modem ....................................................................................... 18
3.4 PC Initialization Strings ................................................................................................................... 18
3.4.1 Changing Default Parameters................................................................................................... 19
3.4.2 Other Parameters ..................................................................................................................... 19
3.5 Configuring Software for Your Computer......................................................................................... 19
3.5.1 Configuring Software for the Remote System ........................................................................... 19
3.5.2 Terminal Emulation ................................................................................................................... 20
3.5.3 File Transfer Protocols .............................................................................................................. 20
Chapter 4 - Command Mode............................................................................................ 21
4.1 Introduction...................................................................................................................................... 22
4.1.1 AT Command Editing ................................................................................................................ 22
4.1.2 Functional Modes...................................................................................................................... 22
4.2 Summary of AT Commands............................................................................................................. 23
4.3 Result Codes ................................................................................................................................... 26
4.4 Dialing Commands .......................................................................................................................... 27
4.4.1 Dialing Action Commands ......................................................................................................... 27
4.4.2 Dial Modifier Commands ........................................................................................................... 28
4.4.3 Phone Number Memory Commands......................................................................................... 30
4.4.4 Configuration and Default Storage Commands ........................................................................ 31
4.4.5 Command Response (Result Code) Commands ...................................................................... 33
4.4.6 Phone Line Conditioning Commands........................................................................................ 34
4.4.7 RS-232C Interface Control Commands .................................................................................... 36
4.4.8 Error Correction Commands ..................................................................................................... 38
4.4.9 Flow Control Commands .......................................................................................................... 40
4.4.10 Compression, Error Correction, Flow Control, Pass-Through and Pacing Commands ............ 43
4.4.11 Speed Conversion Commands ................................................................................................. 44
4.4.12 Immediate Action Commands ................................................................................................... 46
4.4.13 Line Probe Commands ............................................................................................................. 48