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128
MultiModemBA User Guide
I Am Losing Data
• If you are using data compression and a high speed serial port, set the serial port baud rate to
four times the data rate.
• Your UART may not be reliable at serial port speeds over 9600 bps or 19,200 bps. Turn off data
compression, reset your serial port speed to a lower rate, or replace your serial port with a faster
one.
• Make sure the flow control method you selected in software matches the method selected in the
modem. If you have a Macintosh, you may have the wrong cable for hardware flow control.
• If you are running under Windows 3.1 and have a 16550AFN UART, you may need to turn on the
16550’s data buffers and/or replace the Windows serial driver, COMM.DRV.
• Try entering the L8 (List Online Diagnostics) command in on-line mode, making a screen print of
the diagnostics listing, and checking for parameters that may be unacceptable (number of
retrains, round trip delay, etc.).
I Am Getting Garbage Characters on the Monitor
• Your computer and the remote computer may be set to different word lengths, stop bits, or
parities. If you have connected at 8-N-1, try changing to 7-E-1, or vice-versa, using your
communications software.
• You may be experiencing line noise. Enable error correction, if it is disabled, or hang up and call
again; you may get a better connection.
• At speeds above 2400 bps, the remote modem might not use the same transmission or error
correction standards as your modem. Try connecting at a slower speed or disabling error
correction. (With no error correction, however, line noise can cause garbage characters.)
• Try entering the L8 (List Online Diagnostics) command in on-line mode, making a screen print of
the diagnostics listing, and checking for parameters that may be unacceptable (number of
retrains, round trip delay, etc.).
My Fax and Communications Software Won’t Run at the Same Time
Communications devices can be accessed by only one application at a time. Under DOS or Windows
3.1x, you can run either your fax software or your datacomm software, but not both at the same time,
unless you have a special communications device management application, such as Multi-Tech’s
Virtual Modem Driver. In Windows 95, you can have data and fax communication applications open
at the same time, but they cannot use the same modem at the same time.
- BA-Series 1
- Intelligent Data/Fax Modem 1
- User Guide 1
- Contents 3
- Chapter 5 - Command Mode 4
- Chapter 6 - S-Registers 4
- Chapter 8 - Modem Testing 5
- 1.1 Introduction 8
- 1.2 How To Use This Manual 8
- 1.3 Modem Features 10
- 1.3.1 2834 Series Features 10
- 1.3.2 1432 Series Features 10
- 1.3.3 932 Series Features 10
- 1.4 Fax Features 11
- 1.5 Technical Specifications 12
- 1.6 Power 16
- 1.7 Modem LED Indicators 16
- 1.8 Controls on PC Board 17
- MADE IN U.S.A 20
- 2.2 Installation 21
- 2.2.1 Safety Warnings 21
- 2.2.2 Installation Procedure 21
- EIA RS232C 22
- 3.1 Introduction 28
- 3.2 Serial Port Limitations 28
- 3.3 Configuring Your Software 29
- 3.4 PC Initialization Strings 30
- 3.4.2 Other Parameters 30
- 3.5 Macintosh Initialization 31
- 3.6.2 Terminal Emulation 31
- 3.6.3 File Transfer Protocols 32
- 3.8 Modem Basics 33
- 3.8.1 Simple Operations 33
- 4.1 Introduction 36
- 4.2 Dialing/On-Line/Answering 36
- 4.3 Manual Call Origination 37
- 4.4 Automatic Answering 37
- 4.5 Manual Answering 38
- 4.6 Handshaking Details 38
- 4.7 Call Termination 39
- 5.1 Introduction 42
- 5.1.1 AT Command Editing 42
- 5.1.2 Functional Modes 43
- 5.2 Summary of AT Commands 44
- 5.3 Result Codes 47
- 5.4 Dialing Commands 49
- 5.4.1 Dialing Action Commands 49
- 5.4.2 Dial Modifier Commands 50
- Quiet Answer @ 52
- Storing Phone Numbers D...N 53
- Number Linking NN 53
- Modem Reset Z 54
- Unix UUCP Spoofing $SP 55
- Bell/V.21 Tone B 58
- Auto Speed Detect #A 60
- Carrier Detect Control &C 61
- CTS Control &R 61
- Data Set Ready Control &S 62
- Normal Mode &E0 63
- Auto-Reliable Mode &E1 63
- Reliable Mode &E2 63
- V.42 Mode Select #L 64
- Auto-Reliable Buffering $A 64
- Retransmit Count $R 65
- 5.4.9 Flow Control Commands 66
- Xon/Xoff Pass-Through &E7 67
- Send Xon/Xoff Characters #X 67
- Maximum Block Size &BS 68
- Parity Selection #P 68
- Through and Pacing Commands 69
- Speed Conversion $BA 70
- Modem Baud Rate $MB 70
- Serial Port Baud Rate $SB 72
- Help Screens $H 73
- Inquiry for Product Code I 73
- Listing S-Register Values L6 73
- Off Hook H 74
- BREAK AT<CR> 74
- Force Answer Mode A 75
- 6.1 Introduction 78
- Remote Configuration 87
- 7.1 Introduction 88
- Configuration 89
- Change LOGIN Password #I 93
- Change SETUP Password #S 93
- Callback Time Delay (S15) 95
- Callback Attempts (S16) 95
- Local Inactivity Timer (S29) 95
- 8.1 Introduction 98
- Digital Analog 99
- Digital Analog DigitalAnalog 100
- 8.5 Back-to-Back Test 102
- 8.6 Synchronous Mode Testing 103
- MultiModemBA User Guide 106
- 9.1 Introduction 108
- Switch #15 114
- Switch #16 114
- (Reserved for Future Use) 114
- 9.3 Speaker Volume Control 115
- DIP Switches #13-14 116
- DIP Switches #15-16 116
- 10.1 Introduction 118
- 10.2 Limited Warranty 118
- 10.3 Tech Support 119
- 10.4 Service 119
- 10.5 The Multi-Tech BBS 120
- Appendixes 123
- Appendix A - Troubleshooting 124
- I Am Losing Data 128
- Dial Pulses 130
- Tone Dial Frequencies 130
- Appendix D - Command Summary 131
- Password Command Summary 139
- V.25bis Commands 139
- Asynchronous Mode 140
- Synchronous Mode 141
- Delayed and Forbidden Numbers 147
- V.25bis Operation 147
- V.25bis Mode AT Commands 149
- V.25bis AT Commands 150
- DTR Dialing ($D) Command 151
- 25-PIN DTE 154
- Connector 154
- 25-PIN DCE 154
- Test Voltage - Pin 9, XV 158
- Canadian Limitations Notice 162
- Class A Statement 162
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Lanner Počítačový hardware uživatelské příručky
Seznam produktů Lanner Počítačový hardware obsahuje 79 uživatelské příručky pro 79 modelů. Všechny uživatelské příručky pdf jsou k dispozici ke stažení nebo prohlížení online.
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