Main
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Table of Contents
Contents
Chapter 1 - Introduction and Description
Chapter 2 - Installation and Connection
Chapter 3 - Software Configuration
Chapter 4 - Manual Dial and Automatic Answer
Chapter 5 - Command Mode
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Chapter 9 - DIP-Switch Settings
Appendix A - Troubleshooting
Other Appendixes
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1. Introduction and Description
1.1 Introduction
1.2 How To Use This Manual
Chapter 1 - Introduction and Description
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Chapter 7 - Callback and Remote Configuration
Chapter 8 - Testing Your Modem
Chapter 9 - DIP-Switches
1.3 What is in Your Modem Package?
1.4 Modem Features
1.5 Fax Features
1.6 Technical Specifications
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1.7 Power
1.8 Modem LED Indicators
Figure 1-1. LED Displays of the 336 (MD1641A, top) and 336+ (MD1640A, bottom)
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1.9 Controls on PC Board
2. Installation and Connection
2.1 Safety Warnings
2.2 Installation
Figure 2-1. Series II Modem 336 (MD1641A) Connections
Figure 2-2. Series II Modem 336+ (MD1640A) Connections
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2.3 Is Your Series II Modem Ready for Use?
2.4 Operating Your Series II Modem
2.4.1 Simple Operations
2.5 The Answer/Originate - Voice/Data Toggle Switch
3. Software Configuration
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 Pr otocols
3.7 When to Disable Data Compression
3.7.1 Disabling Error Correction
4. Manual Dial and Automatic Answer
4.1 Introduction
4.2 Dialing/On-Line/Answering
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4.3 Automatic Leased Line Restoral Operation (336+ Only)
4.4 Manual Dial Backup Call Termination (336+Only)
4.5 Dial Backup and Leased Line Restoral (336+ Only)
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4.6 Dial-Up Operation (336+ Only)
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. Command Mode
5.1 Introduction
5.1.1 AT Command Editing
5.1.2 Functional Modes
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Figure 5-1.Functional Modes
5.2 Summary of AT Commands
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5.3 Result Codes
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Table 5-1 &Q0 "Series II" Result Codes
Table 5-2 &Q1 Standard AT Result Codes
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5.4 Dialing Commands 5.4.1 Dialing Action Commands
Dial Command D
Continuous Redial A:or :
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Dialing a Stored Number N
DTR Dialing $D
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Voice/Data Dialing $VD
5.4.2 Dial Modifier Commands
Pulse or Tone Dial P or T
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Set Pulse Dial Ratios &P
Automatic Pauses in Dialing ,
Long Space Disconnect Y
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Wait for New Dial-Tone W
Return to Command Mode after Dial Command Execution ;
Reverse the Mode of Operation R
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ATDT101099907247465500$0123 4567 8910 1112
Quiet Answer @
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5.4.3 Phone Number Memory Commands
Storing Phone Numbers D...N
Number Linking NN
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Listing Numbers Stored in Memory L
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5.4.4 Configuration and Default Storage Commands
Store Configuration & S-Register Parameters in Non-Volatile Memory &W
Loading Factory Defaults &F
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Modem Reset Z
Unix UUCP Spoofing $SP
V.32terboEnable/Disable #V (336 Only)
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Async/Sync Mode Switching &M
Synchronous Transmit Clock Select &X
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5.4.5 Command Response (Result Code)
Echo Command Mode Characters E
Result Codes Enable/Disable and No Response Answer Q
Result Codes ("Series II" or "Standard AT") &Q
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Result Codes (Verbose/Terse) V
Result Codes (Basic and Extended) and Call Progress Selection X
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5.4.6 Phone Line Conditioning Commands
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Fallback Modes When On-Line #F
Enable/Disable Lowspeed Fast Connect $FC (336+ Only)
Cleardown at Disconnect &CD
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5.4.7 RS232C Interface Control Commands
Carrier Detect Control &C
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Data Terminal Ready Control &D
Clear to Send Control &R
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Data Set Ready Control &S
5.4.8 Error Correction Commands
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Normal Mode &E0
Auto-Reliable Mode &E1
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Reliable Mode &E2
V.42 Mode Select #L
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Auto-Reliable Buffering $A
Enable/Disable Auto Reliable Fallback Character $F
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Retransmit Count $R
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V.42 Error Correction/300bps $E
5.4.9 Flow Control Commands
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Figure 5-2. Flow Control and Pacing Hardware Flow Control &E4
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Xon/Xoff Flow Control &E5
Xon/Xoff Pass-Through &E7
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Send Xon/Xoff Characters #X
Hewlett-Packard ENQ/ACK Pacing &E9
Normal Mode Modem Flow Control On &E11
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Terminal/Computer Initiated Pacing &E13
Maximum Block Size &BS
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Asynchronous Word Length Selection $EB (336 Only)
Parity Selection #P
5.4.10 Compression, Error Correction, Flow Control, Pass-Through and Pacing
5.4.11 Speed Conversion Commands
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Speed Conversion $BA
Modem Baud Rate $MB
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Serial Port Baud Rate $SB
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5.4.12 Immediate Action Commands
Help Screens $H
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Inquiry for Product Code I
Windows 95 Autodetect Inquiry I9
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Listing Current Operating Parameters L5 L7
Listing S-Register Values L6
Listing On-Line Diagnostics L8
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Figure 5-2.On-line diagnostics information. On or Off Hook H
Escape Sequences- Entering Command Mode While Still On-Line +++AT<CR>
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BREAK AT<CR>
Escape Sequence Options - Entering Command Mode While On-Line %E
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Force Answer Mode A
5.4.13 Line Probe Commands
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6. S-Registers
6.1 Introduction
S0 Number of Rings Until Modem Answers
S1 Rings Which Have Occurred
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S9 Carrier Detect Response Time
S10 Carrier Loss Disconnect Delay Time
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S26 Failed Password Attempts
S29 Local Inactivity Timer
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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
7. Callback Security and Remote Configuration
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
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7.4 Remote Configuration and Callback Security AT Commands
Assign Passwords for Callback Phone Numbers #CBN
Callback Security Enable/Disable #DB
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Change LOGIN Password #I
Change SETUP Password #S
Erase Callback Password #RCBNxx
Erase Callback Phone Number #RDNxx
7.5 Remote Configuration/Callback Security S-Registers
Remote Configuration Character (S13)
Callback Time Delay (S15)
Callback Attempts (S16)
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Failed Password Attempts (S26)
Local Inactivity Timer (S29)
8. Modem Testing
8.1 Introduction
8.2 Local Analog Loopback Test/V.54 Loop 3
Figure 8-1. Local Analog Loopback Test
8.3 Digital Loopback Test/V.54 Loop 2 (Local/Manual)
Figure 8-2. Digital Loopback Test (local/manual)
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8.4 Digital Loopback Test/V.54 Loop 2 (Remote/Automatic)
Figure 8-3. Digital Loopback Test (remote/automatic)
8.5 Back-to-Back Test
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Figure 8-4A.Back-to-Back Test Cabling
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Figure 8-4B.Back-to-Back Testing
8.6 Synchronous Mode Testing
8.7 Local Analog Loopback Test (Synchr onous Mode)
Figure 8-5. Synchronous Mode Local Analog Loopback Test
8.8 Digital Loopback Test (Local/Manual) (Synchronous Mode)
Figure 8-6. Synchronous Mode Digital Loopback Test (local/manual)
8.9 Digital Loopback Test (Remote/A utomatic) (Synchronous Mode)
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Figure 8-7. Synchronous Mode Digital Loopback Test (remote/automatic)
9. DIP-Switch Settings
9.1 Introduction
Figure 9-1. Series II Modem 336 (MD1641A) PC Board
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Figure 9-2. Series II Modem 336+ (MD1640A) PC Board
9.2 DIP-Switch Option Settings
Switch #1 Forced DTR -- "DTR" (Asynchronous/Synchronous Mode/Leased Line/Dial-Up)
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9.3 Speaker Volume Control
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9.4 Recording Option Configurations
DIP-Switches
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DIP Switches #13-16
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Appendixes
Appendix A - Troub leshooting
A.1 Possible Causes and Solutions
None of the LEDs Light When the Modem Is On
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The Modem Does Not Respond to Commands
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The Modem Dials But Cannot Make a Connection
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The Modem Disconnects While On-line
The Modem Cannot Connect When Answering
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File Transfer Is Slower Than It Should Be
I Am Losing Data
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I Am Getting Garbage Characters on the Monitor
My Fax and Communications Software Wont Run at the Same Time
A.2 Contacting Black Box A.2.1 Recording Modem Information
A.2.2 Making the Call
A.3 Shipping and Packaging
A.4 Upgrading the Series II Modems Firmware
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Appendix B - Dial Pulse and Tone-Dial Frequencies
Dial Pulses
Tone Dial Frequencies
Appendix C - Command Summary
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Callback Security/Remote Configuration Command Summary
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Password Command Summary
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V.25bis Commands
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Appendix D - DIP-Switch Summary
Asynchronous Mode
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APPENDIX D: DIP-Switch Summary
Synchronous Mode
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DIP Switches #13-16
APPENDIX E: S-Register Summary Appendix E - S-Register Summary
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APPENDIX E: S-Register Summary
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APPENDIX F: Result Code Summary Appendix F - Result Code Summary
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APPENDIX F: Result Code Summary
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Appendix G - V.25bis Operation
Delayed and Forbidden Numbers
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V.25bis Operation
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V.25bis Set-Up and Initialization
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V.25bis Mode AT Commands
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V.25bis Responses (Result Codes)
V.25bis AT Commands
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Enable/Disable V.25bis Mode ($V) Command
Change Serial Baud Rate (CSP) Command
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Dial Phone Number Provided (CRN) Command
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Listing Delayed Phone Numbers (RLD) Command
Listing Forbidden Phone Number (RLF) Command
Disregard or Connect to Incoming Calls (DIC or CIC) Command
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DTR Dialing ($D) Command
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ITU V.25bis Country Specific Information
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APPENDIX H: Series II modem cables Appendix H - Series II Modem Cables
Figure I-1. RS232 Cable (IBM PC)
Figure I-2. Mac Cable
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The following cables are for 2-wire and 4-wire leased line connections using screw connectors.
Figure I-3. Two Wire Leased Line Connection
Figure I-4. Four Wire Leased Line Connection (336+ [MD1640A] Only)
Appendix I - RS232C Interface Specifications
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Functional Description of RS232C Signals: Transmitted Data - Pin 2,SD (BA)
Received Data - Pin 3,RD (BB)
Request To Send - Pin 4,RTS (CA)
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Transmit Clock - Pin 15,TC (DB)
Receive Clock - Pin 17,RC (DD)
Data Terminal Ready - Pin 20,TR or DTR (CD)
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Ring Indicator - Pin 22,RI (CE)
External Transmit Clock - Pin 24,XTC
Terminal Busy (Out of Service) - Pin 25,OOS
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Appendix J - Regulatory Information
FCC and IC EMI/RFI Statements
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APPENDIX J: Regulatory Information
FCC Part 68 Regulations for Telephone-Line Interconnection
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APPENDIX J: Regulatory Information
Canadian Limitations Notice