Main
User Guide
Contents
Chapter 1 - Introduction and Description
Chapter 2 - Installation and Connection
Chapter 3 - Software Configuration and Modem Basics
Chapter 4 - Manual Dial and Automatic Answer
Chapter 5 - Command Mode
Chapter 6 - S-Registers
Chapter 7 - Callback Security and Remote Configuration
Chapter 8 - Modem Testing
Chapter 9 - DIP-Switch Settings
Chapter 10 - Warranty, Service and Tech Support
Appendixes
Index
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1.1 Introduction
1.2 How To Use This Manual
Chapter 1 - Introduction and Description
Chapter 2 - Installation and Connection
Chapter 3 - Software Configuration and Modem Basics
Chapter 5 - AT Command Mode Operation
Chapter 6 - S-Registers
Chapter 7 - Callback and Remote Configuration
Chapter 8 - Testing Your Modem
Chapter 9 - DIP-Switches
1.3 Modem Features
1.3.1 2834 Series Features
1.3.2 1932 Series Features
1.3.3 1432 Series Features
1.4 Fax Features
1.5 Technical Specifications
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1.6 Power
1.7 Modem LED Indicators
1.8 Controls on PC Board
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2.1 What is in Your Modem Package?
2.2 Installation
2.2.1 Safety Warnings
2.2.2 Installation Procedure
2.2.3 Cabling Procedure (MT1432BL/BLI, MT1932BL/BLI, and MT2834BL/BLI)
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2.2.4 Cabling Procedure (MT1432BLK and MT2834BLK)
2.3 Loading Trio DataFAX Software
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2.4 Is Your Modem Ready for Use?
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3.1 Introduction
3.2 Serial Port Limitations
3.2.1 How Can You Identify Your UART T ype?
3.2.2 The 16550 UART and Windows 3.1
3.3 Configuring Your Software
3.3.1 Configuring Software for Your Modem
3.4 PC Initialization Strings
3.4.1 Changing Default Parameters
3.4.2 Other Parameters
3.5 Macintosh Initialization
3.6 Configuring Software for Your Computer
3.6.1 Configuring Software for the Remote System
3.6.2 Terminal Emulation
3.6.3 File Transfer Protocols
3.7 When to Disable Data Compression
3.7.1 Disabling Error Correction
3.8 Modem Basics
3.8.1 Simple Operations
3.9 The Answer/Originate - Voice/Data Toggle Switch
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4.1 Introduction
4.2 Dialing/On-Line/Answering
4.3 Automatic Leased Line Restoral Operation
4.4 Manual Dial Backup Call Termination
4.5 Dial Backup and Leased Line Restoral
4.6 Dial-Up Operation
4.7 Manual Call Origination
4.8 Automatic Answering
4.9 Manual Answering
4.10 Handshaking Details
4.11 Call Termination
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5.1 Introduction
5.1.1 AT Command Editing
5.1.2 Functional Modes
5.2 Summary of AT Commands
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5.3 Result Codes
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5.4 Dialing Commands 5.4.1 Dialing Action Commands
Dial Command D
Continuous Redial (not used in BLI/BLK) A: or :
Dialing a Stored Number N
DTR Dialing $D
5.4.2 Dial Modifier Commands
Pulse or Tone Dial P T
Set Pulse Dial Ratios &P (Not used in BLK)
Automatic Pauses in Dialing ,
Long Space Disconnect Y
Wait for New Dial-Tone W
Return to Command Mode After Dial Command Execution ;
Reverse the Mode of Operation R
ATDT 1028806127853500 $
Quiet Answer @
5.4.3 Phone Number Memory Commands
Storing Phone Numbers D...N
Number Linking NN
Listing Numbers Stored in Memory L
5.4.4 Configuration and Default Storage Commands
Store Configuration & S-Register Parameters in Non-Volatile Memory &W
Loading Factory Defaults &F
Modem Reset Z
Unix UUCP Spoofing $SP
Async/Sync Mode Switching &M
Synchronous Transmit Clock Select &X
5.4.5 Command Response (Result Code) Commands
Echo Command Mode Characters E
Result Codes Enable/Disable and No Response Answer Q
Result Codes ("Multi-Tech" or "Standard AT") &Q
Result Codes (Verbose/Terse) V
Result Codes (Basic and Extended) and Call Progress Selection X
5.4.6 Phone Line Conditioning Commands
Guard Tones (Not Used in BLI or BLK Models) &G
Bell/V.21 Tone (Not Used in BLK Models) B
Phone Line Monitoring Speaker M
Enable or Disable Recognition of Remote Digital Loop Signal &T
Fallback Modes When On-Line #F
Enable/Disable Lowspeed Fast Connect $FC (2834 Series only)
Cleardown at Disconnect &CD (2834 Series only)
Auto Speed Detect #A
5.4.7 RS-232C Interface Control Commands
Carrier Detect Control &C
Data Terminal Ready Control &D
CTS Control &R
Data Set Ready Control &S
CTS/RTS Interaction Control &RF
DSR/CD Interaction Control &SF
5.4.8 Error Correction Commands
Normal Mode &E0
Auto-Reliable Mode &E1
Reliable Mode &E2
V.42 Mode Select #L
Auto-Reliable Buffering $A
Enable/Disable Auto Reliable Fallback Character $F
Retransmit Count $R
V.42 Error Correction/300bps $E
5.4.9 Flow Control Commands
Hardware Flow Control &E4
Xon/Xoff Flow Control &E5
Xon/Xoff Pass-Through &E7
Send Xon/Xoff Characters #X
Hewlett-Packard ENQ/ACK Pacing &E9
Normal Mode Modem Flow Control On &E11
Terminal/Computer Initiated Pacing &E13
Maximum Block Size &BS
Parity Selection #P
5.4.10 Compression, Error Correction, Flow Control, Pass- Through and Pacing Commands
5.4.11 Speed Conversion Commands
Speed Conversion $BA
Modem Baud Rate $MB
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Serial Port Baud Rate $SB
5.4.12 Immediate Action Commands
Help Screens $H
Inquiry for Product Code I
Windows 95 Autodetect Inquiry I9 (2834 Series only)
Listing Current Operating Parameters L5 L7
Listing On-Line Diagnostics L8
Off Hook H
Escape Sequences- Entering Command Mode While Still On-Line +++AT<CR>
BREAK AT<CR>
Escape Sequence Options - Entering Command Mode While On-Line %E
5.4.13 Line Probe Commands (2834 Series only)
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6.1 Introduction
S0 Number of Rings Until Modem Answers
S1 Rings Which Have Occurred
S2 Escape Code Character
S3 Return Character
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6.2 Reading and Assigning S-Register Values
6.2.1 Examples of Assigning Values
6.2.2 Examples of Reading Values
6.3 AT Command and S-Register Summary
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7.1 Introduction
7.2 Callback Feature Description
7.3 Remote Configuration Description
7.3.1 Initial Setup Procedures for Callback and Remote Configuration.
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7.3.2 Remote Configuration Procedures
7.4 Remote Configuration and Callback Security AT Commands
Assign Passwords for Callback Phone Numbers #CBN
Callback Security Enable/Disable #DB
Change LOGIN Password #I
Change SETUP Password #S
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7.5 Remote Configuration/Callback Security S-Registers
Remote Configuration Character (S13)
Callback Time Delay (S15)
Callback Attempts (S16)
Failed Password Attempts (S26)
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8.1 Introduction
8.2 Local Analog Loopback Test/V.54 Loop 3
8.3 Digital Loopback Test/V.54 Loop 2 (Local/Manual)
8.4 Digital Loopback Test/V.54 Loop 2 (Remote/Automatic)
8.5 Back-to-Back Test
8.6 Synchronous Mode Testing
8.7 Local Analog Loopback Test (Synchronous Mode)
8.8 Digital Loopback Test (Local/Manual) (Synchronous Mode)
8.9 Digital Loopback Test (Remote/Automatic) (Synchronous Mode)
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9.1 Introduction
9.2 DIP-Switch Option Settings
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Switch #15 Carrier Detect/DSR Forcing -- "DSR" (Asynchronous/Synchronous Mode/Dial-Up/Leased Line)
Switch #16 2 Wire/4 Wire Operation (Asynchronous/Synchronous Mode)
9.3 Speaker Volume Control
9.4 Recording Option Configurations
DIP-Switches
DIP Switches #13-14
DIP Switches #15-16
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10.1 Introduction
10.2 Limited Warranty
10.2.1 On-line Warranty Registration
10.3 Tech Support
10.3.1 Recording Modem Information
10.4 Service
10.5 The Multi-Tech BBS
To log on to the Multi-Tech BBS
To Download a file
10.5.1 Upgrading the MultiModem
10.5.2 Using FlashPro to Upgrade Modem Firmware
10.6 About Multi-Techs Internet Presence
10.7 About the Multi-Tech Fax-Back Service
10.8 About Ordering Accessories
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Appendix A - Troubleshooting
None of the LEDs Light When the Modem Is On
The Modem Does Not Respond to Commands
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The Modem Dials But Cannot Make a Connection
The Modem Disconnects While On-line
The Modem Cannot Connect When Answering
File Transfer Is Slower Than It Should Be
I Am Losing Data
I Am Getting Garbage Characters on the Monitor
My Fax and Communications Software Wont Run at the Same Time
Appendix B - ASCII Character Code/Hex/Decimal Conversion Chart
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Appendix D - Command Summary
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Callback Security/Remote Configuration Command Summary
Password Command Summary
V.25bis Commands
Appendix E - DIP-Switch Summary
Asynchronous Mode
Synchronous Mode
DIP Switches #13-14
DIP Switches #15-16
Appendix F - S-Register Summary
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Appendix G - Result Code Summary
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Appendix H - V.25bis Operation
Delayed and Forbidden Numbers
V.25bis Operation
V.25bis Set-Up and Initialization
V.25bis Mode AT Commands
V.25bis Responses (Result Codes)
V.25bis AT Commands
Enable/Disable V.25bis Mode ($V) Command
Change Serial Baud Rate (CSP) Command
Dial Phone Number Provided (CRN) Command
Listing Delayed Phone Numbers (RLD) Command
Listing Forbidden Phone Number (RLF) Command
Disregard or Connect to Incoming Calls (DIC or CIC) Command
DTR Dialing ($D) Command
ITU V.25bis Country Specific Information
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154
MultiModemBL User Guide
Figure I-3. Four Wire Leased Line Connection
Appendix I - MultiModemBL Cables
These cables connect your modem to your terminal or computers serial port.
25-PIN DTE Connector 25-PIN DCE
Device
Figure I-1. RS232 Cable (IBM PC)
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Appendix J - RS-232C Interface Specifications
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Test Voltage - Pin 9, XV
Transmit Clock - Pin 15, TC (DB)
Receive Clock - Pin 17, RC (DD)
Data Terminal Ready - Pin 20, TR or DTR (CD)
Ring Indicator - Pin 22, RI (CE)
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Appendix K - Regulatory Information Compliance with BABT Requirements
Compliance with BS6305 Clause 6.2, BS6320 Clause 7.2, and BABT/SITS/82/ 005S/D
Compliance with European Community Requirements
EMC, Safety and Terminal Directive Compliance
European Directives User Guide Statement
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FCC Regulations for Telephone Line Interconnection
Canadian Limitations Notice
Class A Statement
Index
Symbols
A
B
C
E
F
G
H
I
M
N
O
P
Q
T
U
V
W
X
