Digital Loopback Test (Local/Manual) (Sync Mode). Black Box MD1641A, MD1640A
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Table of contents
- 8 Introduction
- 8 How To Use This Manual
- 11 What is in Your Modem Package?
- 11 Modem Features
- 12 Fax Features
- 13 Technical Specifications
- 17 Power
- 17 Modem LED Indicators
- 19 Controls on PC Board
- 20 Safety Warnings
- 21 Installation
- 24 Is Your Series II Modem Ready for Use?
- 25 Operating Your Series II Modem
- 26 Simple Operations
- 26 The Answer/Originate - Voice/Data Toggle Switch
- 27 Introduction
- 27 Serial Port Limitations
- 28 How Can You Identify Your UART Type?
- 29 The 16550 UART and Windows
- 30 Configuring Your Software
- 30 Configuring Software for Your Modem
- 31 PC Initialization Strings
- 31 Changing Default Parameters
- 32 Other Parameters
- 32 Macintosh Initialization
- 33 Configuring Software for Your Computer
- 33 Configuring Software for the Remote System
- 34 Terminal Emulation
- 34 File Transfer Protocols
- 34 When to Disable Data Compression
- 35 Disabling Error Correction
- 36 Introduction
- 36 Dialing/On-Line/Answering
- 38 Auto. Leased Line Restoral Operation (336+ Only)
- 38 Manual Dial Backup Call Termination (336+ Only)
- 38 Dial Backup and Leased Line Restoral (336+ Only)
- 40 Dial-Up Operation (336+ Only)
- 40 Manual Call Origination
- 41 Automatic Answering
- 42 Manual Answering
- 42 Handshaking Details
- 43 Call Termination
- 45 Introduction
- 45 AT Command Editing
- 46 Functional Modes
- 47 Summary of AT Commands
- 51 Result Codes
- 53 Dialing Commands
- 53 Dialing Action Commands
- 55 Dial Modifier Commands
- 59 Phone Number Memory Commands
- 61 Configuration and Default Storage Commands
- 64 Command Response (Result Code) Commands
- 67 Phone Line Conditioning Commands
- 69 RS232C Interface Control Commands
- 71 Error Correction Commands
- 76 Flow Control Commands
- 82 Pass-Through and Pacing Commands
- 83 Speed Conversion Commands
- 86 Immediate Action Commands
- 91 Line Probe Commands
- 93 Introduction
- 103 Reading and Assigning S-Register Values
- 103 Examples of Assigning Values
- 104 Examples of Reading Values
- 104 AT Command and S-Register Summary
- 105 Introduction
- 105 Callback Feature Description
- 106 Remote Configuration Description
- 106 Configuration
- 112 Remote Configuration Procedures
- 113 Commands
- 115 Remote Configuration/Callback Security S-Registers
- 117 Introduction
- 118 Local Analog Loopback Test/V.54 Loop
- 119 Digital Loopback Test/V.54 Loop 2 (Local/Manual)
- 121 Digital Loopback Test/V.54 Loop 2 (Remote/Auto.)
- 122 Back-to-Back Test
- 124 Synchronous Mode Testing
- 124 Local Analog Loopback Test (Synchronous Mode)
- 125 Digital Loopback Test (Local/Manual) (Sync Mode)
- 126 Digital Loopback Test (Remote/Auto.) (Sync Mode)
- 128 Introduction
- 129 DIP-Switch Option Settings
- 137 Speaker Volume Control
- 138 Recording Option Configurations
- 140 Possible Causes and Solutions
- 148 Contacting Black Box
- 148 Recording Modem Information
- 149 Making the Call
- 149 Shipping and Packaging
- 150 Upgrading the Series II Modem’s Firmware
- 151 Appendix B - Dial Pulse and Tone-Dial Frequencies
- 152 Appendix C - Command Summary
- 165 Appendix D - DIP-Switch Summary
- 168 Appendix E - S-Register Summary
- 172 Appendix F - Result Code Summary
- 175 Appendix G - V.25bis Operation
- 188 Appendix H - Series II Modem Cables
- 190 Appendix I - RS232C Interface Specifications
- 196 Appendix J - Regulatory Information