Data/Voice/Fax Concentrator
Desktop Models DT101, DT102, DT101/xx, DT102/xx
Rack-Mount Models DT101R, DT102R, DT101R/xx, DT102R/xx
Owner’s Manual
DataTalker Series
Record of Revisions
Patents
Trademarks
Chapter 2 - Configuration
Chapter 1 - Introduction and Description
Chapter 3 - Front and Rear Panel Descriptions
Contents
Chapter 4 - Unpacking and Configuration
Chapter 5 - Installation
Chapter 7 - Troubleshooting
Chapter 8 - Warranty, Service and Tech Support
Appendixes
Glossary
Index
Appendix A - ASCII Conversion Chart
Page
Chapter 1 - Introduction and Description
Chapter 2 - Configuration Examples
1.1 Introduction
1.2 About This Manual
Chapter 1 - Introduction
Chapter 4 - Unpacking and Configuration
Chapter 5 - Installation
Chapter 7 - Troubleshooting
Chapter 8 - Service, Warranty and Tech Support
1.3 Product Description
+++ATCR
Figure 1-2. Block Diagram
DataTalker Owner’s Manual
communications software to the DATA/COMMAND connector on the back panel and configure the data channel for the type of data that is going to be transferred. For example, if an asynchronous device is going to be connected to the data channel, you must set the speed of the channel, the word length, the number of stop bits, whether or not you are going to have parity checking, the flow control type, and other aspects of asynchronous data. After you have configured the data channel, remove the command port device and connect the data channel device, allowing data to be transferred from the asynchronous device to the MultiMux’s input/ output circuitry
Chapter 1 - Introduction and Description
1.4 System Features
1.4.1 Voice/Fax
1.4.2 Data Channel
1.4.3 Composite Link
1.4.7 Operational Statistics
1.4.6 Diagnostics
Chapter 1 - Introduction and Description
1.5 FCC Regulations for Telephone Line Interconnection
DataTalker Owner’s Manual
1.6 Canadian Limitations Notice
Chapter 1 - Introduction and Description
1.7 Specifications
1.7.3 System Control Command Port
1.7.1 Async Data Channel
1.7.2 Sync Data Channel
1.7.5 Internal Modem
1.7.6 Internal DSU
1.7.7 ISDN Terminal Adapter
1.7.8 Voice/Fax Channel
1.7.9 Electrical/Physical
Desktop Models
Rack-mount Models
DataTalker Owner’s Manual
Chapter 2 - Configuration
DataTalker Configurations
Valid Voice/Fax Configurations
Configuration
2.1 Introduction
Chapter 2 - Configuration
2.2 Configuration 1 - Dial-Up Link
Home Office
To configure the DataTalker, enter 1 and press ENTER
DataTalker Owner’s Manual
Chapter 2 - Configuration
AT$D1 CR AT&W CR Q CR
ATDTNumber to DialN0 CR
To connect the home office DataTalker to its PC, connect an RS232C cable between the DATA/ COMMAND connector on the DataTalker and an async port on the PC typically, COM1 or COM2. Place DIP switch position 3 on the side of the DataTalker in the OPEN up position to enable the data channel
DataTalker Owner’s Manual
Chapter 2 - Configuration
2.3 Configuration 2 - MMH900 Series with Voice/Fax
Figure 2-2. Adding Voice to Data-Only Network
DataTalker Owner’s Manual
Async
19200
Echo
Chapter 2 - Configuration
Composite Link Settings - Internal DSU
Configurations
Speed
Figure 2-3. LAN to LAN Configuration
2.4 Configuration 3 - LAN to LAN
DataTalker Owner’s Manual
Chapter 2 - Configuration
DataTalker Owner’s Manual
ENTER
Chapter 2 - Configuration
The DataTalker knows the type of link device being used by the way a DIP switch is set or by detecting a device installed on the main PC board. In this configuration, a 56K bps internal DSU is used for the composite link device, so when the Composite Link Settings menu is displayed, it is for a DSU
2.5 Configuration 4 - PBX to PBX
Remote Site
Local Site
Figure 2-4. PBX to PBX Configuration
Chapter 2 - Configuration
The terminal adapter menu displays the transmit rate and option 2 allows you to configure the terminal adapter. Use option 2 Configure TA to access the terminal adapter’s built-in configuration menus refer to the ISDN Terminal Adapter Owner’s Manual for details. The Flush Time option is used only with an Alpha microcomputer or Wyse terminal. Enter S and press ENTER to store all configurations
DataTalker Owner’s Manual
Chapter 3 - Front and Rear Panel Descriptions
3.2 Indicators
Table 3-1. LED Indicators
Data/Command Indicators
3.1 Introduction
Chapter 3 - Front and Rear Panel Descriptions Voice/Fax Channels
Composite Link Status
28.8/56 28.8K bps/56K bps This composite link speed indicator displays the baud rate of the internal modem 28.8 or DSU 56K. The type of composite link device is indicated by which of the EXT, MDM, DSU, or TA indicators lights
3.3 Connectors
3.3.1 Frame Ground Connector GND
3.3.2 POWER Connector
3.3.3 DATA/COMMAND Connector
3.3.7 VOICE/FAX CHANNEL 1 E&M Connector
3.3.8 DSU/TA DIGITAL Connector
3.3.9 MODEM LEASED Connector
3.3.10 MODEM DIAL-UP Connector
3.4 Switches and Shunts
3.4.1 Front Panel Switches
3.4.2 Power Switch
Chapter 3 - Front and Rear Panel Descriptions
3.4.3 DIP Switch
3.4.4 RS232C/V.35 Shunt
Position
DataTalker Owner’s Manual
Chapter 4 - Unpacking and Configuration
4.1 Introduction
4.2 Unpacking
DataTalker Owner’s Manual
Figure 4-1. Unpacking
4.3 Configuration Summary
4.4 Data Port Configuration Considerations
Chapter 4 - Unpacking and Configuration
Connector
4.5 Voice/Fax Channel Configuration Considerations
DataTalker Owner’s Manual
4.6 Composite Link Configuration Considerations
Chapter 4 - Unpacking and Configuration
Table 4-1. Configuration Procedure
4.7 Configuration Procedure
DataTalker Owner’s Manual
Chapter 4 - Unpacking and Configuration
6 Apply power to the terminal or PC. Run your PC communications software in terminal mode. Press the ENTER key twice to establish communications with the DataTalker the Main Menu then appears
DataTalker Owner’s Manual
Voice/Fax Channel Configuration
Data Port Async/Sync 1 - Async 2 - Sync P - Previous Menu Selection
Chapter 4 - Unpacking and Configuration
Composite Link Configuration
Accept the defaults for the first five options
ATDTNumber Modem to DialN0 AT$D1 - DTR Dialing command
DataTalker Owner’s Manual
Chapter 4 - Unpacking and Configuration
DataTalker Owner’s Manual
Chapter 5 - Installation
Table 5-1. Cabling Procedure
Step Procedure Composite Link
DIP Switch
5.1 Introduction
Chapter 5 - Installation MMH2834 Modem, Leased Line
Figure 5-3. Leased Line Connection DSU
ISDN Terminal Adapter
Figure 5-4. DSU Line Connection
External Modem, DSU, or ISDN Terminal Adapter
Data Channel
Voice/Fax Channel
DataTalker Owner’s Manual
Figure 5-9. PBX Connection
Chapter 5 - Installation
Figure 5-10. PBX E&M Trunk Connection
Table 5-2. V.35 Shunt Procedure
Step Procedure
5.3 V.35 Shunt
DataTalker Owner’s Manual
5.4 Power-On and Checkout
Table 5-3. Power-On and Checkout Procedure
Composite Link Device
Chapter 5 - Installation
Composite Link
Composite link Data channel Voice/fax channel
Data Channel
Chapter 5 - Installation Voice/Fax Channel
DataTalker Owner’s Manual
Chapter 6 - Menus
6.1 Introduction
6.2 Configurations Menu
DataTalker Owner’s Manual
6.2.1 Data Port Configuration
Chapter 6 - Menus
DataTalker Owner’s Manual
DataTalker A IN IN IN OUT OUT UT
Composite Link Facility
DataTalker B 8 OUT 6 OUT 22 OUT 4 IN 20 IN 25 IN
6.2.2 Sync Data Port Configuration
Chapter 6 - Menus
Voice/Fax Channel 1 Configuration
6.2.3 Voice/Fax Channel Configuration
DataTalker Owner’s Manual
Local
Remote
Configuration
Configuration
Page
Composite Link Settings - Internal MMH2834
6.2.4 Composite Link Configuration
Chapter 6 - Menus
Selection
x - Enter the number of seconds0 is off P - Previous Menu
Composite Link Settings - Internal TA
Composite Link Settings - Internal 56K DSU
Chapter 6 - Menus
The Disconnect on Inactivity DOI Timer option signals the terminal adapter to hang up the composite link by dropping DTR to it when the timer expires. When the DOI Timer option is selected, a submenu is displayed in which you can enter the number of minutes that the inactivity timer is set for. The range of the timer in minutes is 01 to 99. The default setting for the timer is three minutes
Selection
Selection
DataTalker Owner’s Manual
Composite Link Settings - External Device
Chapter 6 - Menus
x - Enter the number of minutes P - Previous Menu
x - Enter the number of seconds0 is off P - Previous Menu
6.3 Statistics
DataTalker Owner’s Manual
6.4 Reset Options
6.5 Diagnostic Tests
Reset Options 1 - Reset Unit 2 - Reset Data and Voice/Fax Channels
3 - Reset Voice/Fax Channel 4 - Reset Voice/Fax Channel
6.5.1 Loop Tests
Voice Loopback Test
Internal DSU Test
External Device Test
6.6.1 MMV8/16/32 Configuration Options
6.6 Configure Remote Unit
Chapter 6 - Menus
6.6.2 Quick Setup
Warning The memory test will destroy all stored configurtions
Will this unit be installed at the main office? Y/N/Q
DataTalker Owner’s Manual
Table 6-1. Main Office Installation
MMH2834 Modem Dial-up
MMH2834 Modem Leased Line
Digital DSU
Configuration and installation is complete
DataTalker Owner’s Manual
Table 6-2. Home Office Installation
Step Procedure
Chapter 6 - Menus
MMH2834 Modem Dial-up
POWER
DATA/COMMAND Connector RS232 Cable
DataTalker Owner’s Manual
Chapter 7 - Troubleshooting
7.1 Introduction
7.2 Importance of the Composite Link Statistics Report
Receive Block Errors
Link Alarms
Chapter 7 - Troubleshooting
7.3 Test Cables
7.4 Troubleshooting Guide
DataTalker Owner’s Manual
Data Channel
Voice/Fax Channel
Table 7-1. Command Port Troubleshooting
Table 7-2. Composite Link Troubleshooting Internal DSU
Problem
Command port device not
Problem Composite link down with CD, CTS, XMT, RD and RCV LEDs on
Flashing RXT LED
Table 7-2. Composite Link Troubleshooting Internal DSU
Solution
Problem Composite link down with CTS, XMT and RD LEDs on
Internal ISDN Terminal Adapter
Composite link down with CD, CTS, XMT, RCV and RD LEDs on
Chapter 7 - Troubleshooting
Problem Composite link down with CTS, XMT, and RD LEDs on
Internal MMH2834 Modem
Solution
DataTalker Owner’s Manual
Solutions
External Composite Link Device
Flashing RXT LED Composite link down with CD, CTS and RD LEDs on
Chapter 7 - Troubleshooting
Table 7-3 Data Channel Troubleshooting
ProblemPossible CausesSolution
Async Data Channel
Sync Data Channel
Table 7-4. Voice/Fax Troubleshooting
Volume levels not sufficient on local voice/fax channel
Data throughput slows excessively when voice/fax channel is active
FXO to FXO configuration - local telephone does not ring
Table 7-4. Voice/Fax Troubleshooting continued
No communication on voice/fax channel
Problem
Solution
7.5 Composite Link Settings - Internal DSU
Table 7-5. Composite Link Settings - Internal DSU
Chapter 7 - Troubleshooting
Step Procedure
7.6 Composite Link Settings - Internal ISDN Terminal Adapter
Table 7-6. Composite Link Settings - Internal ISDN Terminal Adapter
Step Procedure
DataTalker Owner’s Manual
7.7 Composite Link Settings - Internal Modem
Table 7-7. Composite Link Settings - Internal MMH2834
StepProcedure
Chapter 7 - Troubleshooting
7.8 Composite Link Settings - External Device
Table 7-8. Composite Link Settings - External Device
Step Procedure
DataTalker Owner’s Manual
7.9 Composite Link Statistics
Table 7-9. Composite Link Statistics
Chapter 7 - Troubleshooting
Step Procedure
DataTalker Owner’s Manual
7.10Data Port Configuration
Table 7-10. Data Port Configuration
Chapter 7 - Troubleshooting
Step Procedure
Data Port Configuration
DataTalker Owner’s Manual
7.11 Voice/Fax Channel Configuration
Table 7-11. Voice/Fax Channel Configuration
Chapter 7 - Troubleshooting
Step Procedure
DataTalker Owner’s Manual
7.12Diagnostic Testing
Table 7-12. Diagnostic Testing
Chapter 7 - Troubleshooting
Step Procedure
DataTalker Owner’s Manual
Chapter 8 - Warranty, Service and Tech Support
8.2 Limited Warranty
8.2.1 On-line Warranty Registration
8.1 Introduction
DataTalker Owner’s Manual
8.3.2 Service
Chapter 8 - Warranty, Service and Tech Support
ATTN SERVICE OR REPAIRS
8.3 Tech Support
8.4 The Multi-Tech BBS
To log on to the Multi-Tech BBS
To Download a file
If you know the file name
Chapter 8 - Warranty, Service and Tech Support
8.5 About the Internet
ftp//ftp.multitech.com
DataTalker Owner’s Manual
Appendixes
Appendix A - ASCII Conversion Chart
CTRL CODE HEX DEC
CODE HEX
CODE
Appendix B - RS-232C Interface Specification
Appendix B - RS-232C Interface Specification
SIGNAL INFORMATION
SIGNAL
Appendix C - Cabling Diagrams
Channel Cables
DataTalker Owner’s Manual
To DCE Device
Appendix C - Cabling Diagrams
Composite Link Cabling
RS232C/V.24 Configured Composite Link
V.35 Adapter Cable Configured on a RS232C/V.35 Composite Link
1 2 3 4 5 6 7
DataTalker Owner’s Manual
1 2 3 4 5 6 7
RJ-48 Cable for Internal DSU
Voice/Fax Channel Connectors
Wire
E&M Voice/Fax Channel Cable
DSU Back-to-Back Cable
Appendix D - Flow Control Background
DataTalker Owner’s Manual
DATATALKER-INITIATED FLOW CONTROL
CHANNEL DEVICE INITIATED PACING
Appendix E - MMH2834 Modem S-Registers
Introduction
S0 Number of Rings Until Modem Answers
S6 Wait Time for Dial Tone
S13 Remote Configuration Escape Character
S19 Dial-Back Timer
S11 Tone Dialing Tone Spacing and Duration
S18 Automatic Leased Line Restoral
MMH2834 Command Summary
Appendix F - MMH2834 Modem Commands F.1 Introduction
Appendix F - MMH2834 Modem Commands
COMMAND
TYPE
DESCRIPTION
Negotiate V42 Mode During Handshake
F.2 Dialing Action Commands
Dial Command
Continuous Redial
A or
F.3 Dial Modifier Commands
Pulse or Tone Dial P
Set Pulse Dial Ratios &P
Automatic Pauses in Dialing
Wait for New Dialtone
Reverse the Mode of Operation R
Flash On Hook
“Calling Card” Detect Tones
F.4 Phone Number Memory Commands
Storing Phone Numbers
D...N
Number Linking
F.5 Configuration and Default Storage Commands
Store Configuration & S-Register Params. in Non-Volitile Memory &W
Loading Factory Defaults &F
Modem Reset
F.6 Command Response Result Code Commands
Echo Command Mode Characters
Result Codes Enable/Disable and No Response Answer
Result Codes “Multi-Tech” or “Standard AT”
Result Codes Verbose/Terse
Result Codes Basic and Extended and Call Progress Selection
TERSE
VERBOSE
DataTalker Owner’s Manual
X2 Looks for dial tone only and will not provide a busy response
F.7 Phone Line Conditioning Commands
F.8 RS232C Interface Control Commands
Enable or Disable Recognition of Remote Digital Loop Signal
Enable/Disable Trellis Coded Modulation
F.9 Error Correction Commands
V.42 Mode Select
Auto-Reliable Buffering
DataTalker Owner’s Manual
Enable/Disable Auto-Reliable Fallback Character
V.42 Error Correction/300bps
Retransmit Count
Appendix F - MMH2834 Modem Commands
Data Compression
F.10 Compression and Maximum Block Size Commands
Maximum Block Size
F.11 Speed Conversion Commands
Speed Conversion $BA
Modem Baud Rate $MB
AT$MB28800
Serial Port Baud Rate
AT$SB115200
= 115,200 bps
DataTalker Owner’s Manual
F.12 Immediate Action Commands
Help Screens $H
Inquiry for Product Code
Listing Current Operation Parameters L5, L7
ATL8
Listing On-Line Diagnostics
DataTalker Owner’s Manual
Glossary
Glossary
DataTalker Owner’s Manual
Circuit Any closed path through which electrical current can flow
Glossary
De facto standards A de facto standard is one of two types of voluntary standards recognized by a given market. It is introduced by a single vendor and becomes a standard by its widespread use and acceptance by other vendors. AT&Ts Bell 212A, IBMs Binary Synchronous Protocol or DECs VT-100 terminal protocol are examples of de facto standards. Compare with de jure standards
DataTalker Owner’s Manual
1. The way text is set up on a page
Format
Node Any point within a network which has been assigned an address
Glossary
P Parameter
RJ-45 An 8-wire modular connector for voice and data circuits
DataTalker Owner’s Manual
UTP unshielded twisted pair Telephone-type wiring V
Threshold A value or condition which, when reached, triggers an event
Glossary
Index
Symbols
DataTalker Owner’s Manual
Index
Troubleshooting
DataTalker Owner’s Manual