Multi Tech Systems Network Router MT5600BA V90 User Manual

MT5600BA/BL Series  
MT5600BA–V.92  
MT5600BA–V.90  
MT5600BL–V.90  
Data/Fax Modem  
User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MultiModemII User Guide  
Table of Contents  
Table of Contents  
Chapter 1 - Description and Features......................................................................... 5  
Product Description.............................................................................................. 5  
About AT Commands........................................................................................... 5  
Features............................................................................................................... 5  
Safety Warnings................................................................................................... 6  
Chapter 2 - Installation ............................................................................................... 7  
Step 1 - Connect the Modem to Your System ...................................................... 7  
Step 2 - Install the Modem Driver ......................................................................... 9  
Removing an Old Modem Driver .......................................................................... 9  
Step 3 - Setting Your Country or Region Code................................................... 10  
Step 4 - Install PhoneTools ................................................................................ 11  
Chapter 3 - Using the Front Panel ............................................................................ 12  
Modem Configuration ......................................................................................... 12  
LED Indicators ................................................................................................... 12  
Liquid Crystal Display (LCD) .............................................................................. 13  
Option Selection .......................................................................................... 13  
Menu Structure ............................................................................................ 13  
Menu Overview .................................................................................................. 14  
Status Trunk................................................................................................. 15  
Basic Options Trunk..................................................................................... 16  
Advanced Options Trunk.............................................................................. 18  
Remote Configuration Options Trunk ........................................................... 20  
Diagnostic Options Trunk ............................................................................. 20  
Phone Number Memory Options Trunk........................................................ 21  
Caller ID Options Trunk................................................................................ 21  
Menu Options .............................................................................................. 22  
Status .......................................................................................................... 22  
Basic Options .............................................................................................. 23  
Advanced Options ....................................................................................... 25  
Remote Configuration Options..................................................................... 27  
Diagnostic Options ...................................................................................... 27  
Phone Number Memory Options ................................................................. 27  
Caller ID Options ......................................................................................... 28  
Chapter 4 - Leased Line Operation .......................................................................... 29  
Two-Wire Setup ................................................................................................. 29  
Four-Wire Setup................................................................................................. 30  
Dial Backup and Leased-Line Restoral .............................................................. 31  
Dial Backup and Leased Line Restoral Setup .................................................... 31  
Chapter 5 - Remote Configuration ............................................................................ 33  
Basic Procedure................................................................................................. 33  
Setup ................................................................................................................. 33  
Changing the Remote Configuration Password.................................................. 33  
Changing the Remote Escape Character........................................................... 34  
Chapter 6 - Callback Security ................................................................................... 35  
Setup Procedures .............................................................................................. 35  
Turning Callback Security On and Off ................................................................ 35  
Assigning Callback Passwords .......................................................................... 36  
Calling Procedure .............................................................................................. 38  
Callback Security Commands ............................................................................ 39  
Callback Assignments Form .............................................................................. 40  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
3
Download from Www.Somanuals.com. All Manuals Search And Download.  
MultiModemII User Guide  
Table of Contents  
Chapter 7 - Troubleshooting ..................................................................................... 41  
None of the Indicators Light ............................................................................... 41  
The Modem Does Not Respond to Commands.................................................. 42  
The Modem Cannot Connect When Dialing ....................................................... 43  
The Modem Disconnects While Online .............................................................. 44  
The Modem Cannot Connect When Answering ................................................. 45  
File Transfer Is Slower Than It Should Be .......................................................... 45  
Data Is Being Lost.............................................................................................. 45  
There Are Garbage Characters on the Monitor .................................................. 46  
The Modem Doesn’t Work with Caller ID ........................................................... 46  
Fax and Data Software Can’t Run at the Same Time......................................... 46  
Appendix A - Regulatory Compliance ....................................................................... 47  
FCC Part 68 Telecom ........................................................................................ 47  
Fax Branding Statement .................................................................................... 48  
Canadian Limitations Notice............................................................................... 48  
EMC, Safety, and R&TTE Directive Compliance................................................ 49  
International Modem Restrictions ....................................................................... 49  
New Zealand Telecom Warning Notice .............................................................. 49  
South African Notice .......................................................................................... 50  
Appendix B - Technical Specifications...................................................................... 51  
Appendix C - Warranty, Service, and Technical Support .......................................... 53  
Multi-Tech Systems, Inc. Warranty & Repairs Policies....................................... 53  
Online Warranty Registration ............................................................................. 54  
Service............................................................................................................... 54  
Replacement Parts ............................................................................................ 55  
Technical Support .............................................................................................. 56  
Internet Sites...................................................................................................... 56  
Appendix D - Upgrading the Firmware...................................................................... 57  
Introduction ........................................................................................................ 57  
Upgrade Overview ............................................................................................. 57  
Step 1 - Identify the Modem Firmware ............................................................... 57  
Step 2 - Identify the Current Firmware Version .................................................. 58  
Step 3 - Download the Upgrade File .................................................................. 58  
Step 4 - Extract the Upgrade Files ..................................................................... 58  
Step 5 - Clear Your Stored Paramenters............................................................ 59  
Step 6 - Upgrade the Modem’s Firmware........................................................... 59  
Step 7 - Restore Your Parameters ..................................................................... 59  
Appendix E - Installing a Modem Under Linux .......................................................... 60  
Introduction ........................................................................................................ 60  
Standard Linux Serial Port Definitions ................................................................ 60  
Installation.......................................................................................................... 60  
Setup ................................................................................................................. 60  
Appendix F - Pin Descriptions .................................................................................. 62  
RS-232 Pin Descriptions .................................................................................... 62  
RS-232 Cable Pinouts........................................................................................ 63  
Leased Line Pinouts........................................................................................... 64  
Index ........................................................................................................................ 65  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
4
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 1 - Description and Features  
Chapter 1 - Description and  
Features  
Congratulations on your purchase of the MultiModemII modem. You have acquired one of the finest  
intelligent data/fax modems available today from one of the world’s oldest modem manufacturers: Multi-  
Tech Systems, Inc. This user guide will help you install, configure, test and use your modem.  
Product Description  
This modem supports two-wire and/or four-wire leased lines. The four-wire leased line includes the dial  
backup and automatic leased line restoration features. Please note that, because leased-line operation  
consists of two client modems connected to each other, the maximum leased line data rate is 33.6K bps.  
The MT5600BA-V.92 modem supports both two-wire and four-wire leased lines.  
The MT5600BA modem supports a two-wire leased line.  
The MT5600BL modem supports a four-wire leased line.  
The MultiModemII offers interactive automatic dialing. You can store four command lines or telephone  
numbers of up to 30 characters each in the modem’s nonvolatile memory. The modem pulse- or tone-  
dials, and recognizes dial tones and busy signals for reliable call-progress detection. It can also detect  
AT&T calling card tones. It is FCC-registered for connection to telephone networks without notification to  
the telephone company.  
The MultiModemII front panel includes a liquid crystal display and four buttons, which together can be  
used to either display the current connection status of the modem or to configure the modem. The  
MultiModemII also can be configured through standard AT commands.  
About AT Commands  
AT Commands for this product are published in a separate document and included on the  
MT5600BA/BL System CD that accompanies your modem.  
Features  
General  
Complies with major international standards to ensure compatibility with other modems.  
Uses DTMF and tone detection to distinguish data and fax calls when used with software that  
supports these features.  
Supports serial port speeds to 230.4K bps with compatible serial ports  
Supports Caller ID (North American versions only).  
Displays status and configuration information on a front panel LCD.  
Data  
Supports automatic fallback to slower speeds in noisy line conditions, and fall-forward to faster  
speeds as conditions improve.  
Supports both synchronous and asynchronous data transfer.  
Support two-wire leased line operation. Also supports four-wire leased line operation with dial  
backup and leased line restoration.  
Supports callback security and remote configuration.  
Supports AS400 applications.  
Automatically disables compression when transferring already-compressed files.  
Can autodial, redial, pulse (rotary) and touch-tone dial.  
Detects dial tones and busy signals for reliable call-progress detection.  
Compatible with the standard AT command set used by most communication programs.  
Supports Plug and Play (PnP).  
Can be flash upgraded.  
Fax  
Supports V.17, Class 1, and Group 3 fax standards, (V.92 support Class 2 also) allowing it to  
communicate with other fax modems as well as with fax machines.  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
5
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 1 - Description and Features  
Safety Warnings  
Use this product only with UL- and CUL-listed computers.  
To reduce the risk of fire, use only 26 AWG or larger telephone wiring.  
Never install telephone wiring during a lightning storm.  
Never install a telephone jack in a wet location unless the jack is specifically designed for wet  
locations.  
Never touch uninsulated telephone wires or terminals unless the telephone line has been  
disconnected at the network interface.  
Use caution when installing or modifying telephone lines.  
Avoid using a telephone during an electrical storm; there is a risk of electrical shock from  
lightning.  
Do not use a telephone in the vicinity of a gas leak.  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
6
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 2 - Installation  
Chapter 2 - Installation  
Step 1 - Connect the Modem to Your System  
Turn off your computer. Placing the modem in a convenient location, connect it to your computer’s  
serial port, to the telephone line, to your leased line, to AC power, and, optionally, to your telephone.  
or  
MultiModemII connections with V.92 transformer and V.90 transformer.  
Connect the Modem to Your PC  
Plug one end of the serial cable into the RS-232 connector on the modem, and the other end into a  
serial port connector on your computer, such as COM1 or COM2.  
Connect the Modem to the Telephone Line (Dialup  
Connection)  
Plug one end of the modular phone cable into the modem’s LINE jack, and the other end into a public  
switched telephone network (PSTN) wall jack.  
Important: The LINE jack is not interchangeable with the PHONE jack. Do not plug the phone into  
the LINE jack or the line cable into the PHONE jack.  
Note: Regulatory agencies may impose certain restrictions on equipment connected to public  
telephone systems.  
Connect theTwo-Wire Leased Line  
MT5600BA – Plug one end of a two-wire phone cable into the modem’s LINE jack; connect the other  
end to a leased line wall jack or terminals.  
MT5600BL – Plug one end of a two-wire phone cable into the modem’s LEASED jack; connect the  
other end to a leased line wall jack or terminals.  
7
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 2 - Installation  
Connect the Four-Wire Leased Line  
MT5600BL Only – Plug one end of a four-wire phone cable into the modem's LEASED jack; connect  
the other end to a four-wire leased line wall jack or terminals.  
Modems with a leased-line jack support the dial backup feature. For dial backup operation, plug one  
end of your dialup modular phone cable into the modem’s LINE jack and the other end into a PSTN  
wall jack.Plug one end of a two-wire or four-wire phone cable into the modem’s LEASED jack, and  
connect the other end to a leased-line wall jack or terminals.  
Modems with a leased-line jack support the dial backup feature. For dial backup operation, plug one  
end of your dialup modular phone cable into the modem’s LINE jack and the other end into a PSTN  
wall jack.  
Connect the Phone to the Modem (Optional)  
For voice-only calls, plug a telephone into the modem’s PHONE jack.  
Connect the Modem to the AC Power Outlet  
Plug the power transformer into an AC power outlet or power strip. Plug the power transformer’s  
cable into the POWER jack on the modem.  
Note: Use only the power transformer supplied with the modem. Use of any other transformer voids  
the warranty and can damage the modem.  
Power-On Test  
Test the modem by turning it on (a power switch is located on the front panel). When you apply  
power, the modem performs a diagnostic self-test, indicated by the TM indicator lighting for a few  
seconds, after which the LCD should light. If this does not happen, check that the power switch is  
on, the power transformer is solidly connected, and the AC outlet is live. If these measures do not  
work, see the “Troubleshooting” chapter.  
8
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 2 - Installation  
Step 2 - Install the Modem Driver  
If you use Windows 98/Me/NT 4.0/2000/XP; you must install the modem driver. The drivers are installed  
easily since Windows supports Plug-and-Play.  
Installing the Modem Driver for Windows 98/Me/2000/  
XP  
1. Make sure your modem is connected properly, and then turn on your computer. Windows should  
detect your new modem and open the Install New Modem wizard.  
Note: If Windows cannot find a modem, your modem may be turned off, it may be plugged into  
the wrong connector on your computer, or the serial cable may be faulty. See “None of the LEDs  
Light When the Modem Is Turned On” and “The Modem Does Not Respond to Commands” in the  
“Troubleshooting” chapter.  
2. Insert the MultiModemII system CD into your CD-ROM drive, and then click OK.  
3. Windows installs and configures the modem.  
4. Click Finish to exit.  
Installing the Modem Driver for Windows NT  
1. Make sure your modem is connected properly, and then turn on your computer. Windows should  
detect your new modem and open the Install New Modem wizard.  
Note: If Windows cannot find a modem, your modem may be turned off, it may be plugged into  
the wrong connector on your computer, or the serial cable may be faulty. See “None of the LEDs  
Light When the Modem Is Turned On” and “The Modem Does Not Respond to Commands” in the  
Troubleshooting chapter of the User Guide.  
2. In the Install New Modem wizard, select Don’t detect my modem; I will select it from a list,  
and then click Next. A dialog box with a list of manufacturers and a list of modem models  
appears.  
3. Insert the MultiModemII system CD into your CD-ROM drive, and then click Have Disk.  
4. In the Install from Disk dialog box, select the drive that the CD is in, and then click OK.  
5. A list of modems appears. Select your modem and click Next.  
6. Select the port that the modem is connected to, and then click Next.  
7. Windows installs and configures the modem.  
8. Click Finish to exit.  
Removing an Old Modem Driver  
When your new modem replaces another modem, the old modem driver remains in Windows, and the  
old modem driver is still selected in HyperTerminal and other Windows applications. Though you can  
change the application connection descriptions one at a time, it is easier to force Windows applications to  
use the new modem by removing the old modem driver from Windows.  
1. Click the Start button, point to Settings, and click Control Panel.  
2. Double-click the Modems icon to open the Modems Properties dialog box.  
3. In the list box, select the old modem.  
4. Click Remove, and then click Close.  
5. The next time you dial a HyperTerminal connection, it will select your new modem and ask you to  
confirm the selection.  
9
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 2 - Installation  
Step 3 - Setting Your Country or Region Code  
(MT5600BA–V.92 Only)  
The MT5600BA-V.92 modem is a global modem - it can be used all over the world.  
However, countries or regions vary in their requirements for how a modem functions. Therefore, you  
must configure yours to match the defaults of the country or region in which you are using it. Choose  
from any of the three methods:  
Using the LCD Panel to Set Your Country or Region Code  
Using the Global Wizard to Set Your Country or Region Code  
Using AT Commands to Set Your Country or Region Code  
Using the LCD Panel  
1. Start at the Status LCD and use the down arrow to  
Status  
move down the menu tree to the Region Select LCD.  
2. Use the right arrow to move from the Region Select  
LCD, across the Region Setting Options LCD, to the  
Current Setting LCD.  
Basic Options  
Advanced  
Options  
3. If the current setting shown is not the one for your  
region, arrow across to the Region Profile LCD. The  
question mark represents the question Is this the region  
you want? If B5 is the one you want, press Enter; if it s  
not the one you want, arrow across until you see the code  
you desire. See the list of Region Codes on the back of  
this card.  
Remote Config  
Diagnostics  
4.When you reach the region code you want, press  
Enter. After pressing Enter, you will see the message  
Phone Number  
Memory  
Option Set  
.
5. After setting the region profile, you can re-power the  
modem or use the arrows to move back and up the menu  
tree to return to the Status LCD.  
Caller ID  
Region Setting  
Options  
Region Profile  
Current Setting  
Region Select  
B5?  
Region Profile  
99?  
Region Profile  
01?  
Region Profile  
02?  
Region Profile  
03?  
Region Profile  
04?  
Region Profile  
00?  
Region Profile  
09?  
Region Profile  
6C?  
Region Profile  
9F?  
Using the Global Wizard  
The Global Wizard configuration utility is recommended for computers running in Windows. The  
Wizard can configure your modem for a specific country or region with just a few mouse clicks.  
1. Insert the MultiModemII CD into the CD-ROM drive. The Autorun dialog box appears.  
2. Click Initial Setup and Country or Region Selection. The Global Wizard dialog box  
appears. Click Next.  
3. The Global Wizard searches for your modem and identifies it. Click Next after your modem is  
identified.  
4. Select the country or region in which the modem will be used. Click Next.  
5. Review your choice. If it is correct, click Next to configure the modem.  
6. When the Global Wizard announces that the parameters have been set, click Finish to exit.  
10  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 2 - Installation  
Using AT Commands  
If you are comfortable using AT commands, you can use them to configure your modem. You  
must enter these commands in your communication program's terminal window. You can use a  
communication program such as PhoneTools. See Step 4 below.  
How to Change the Country/Region Code  
1. View the list of available country/region codes to find your country/region code by  
executing the command AT +GCI? <CR>  
Note: A list of country/region codes is also available on the Multi-Tech Web site at:  
configuration.asp#chart  
2. Set and save the code by executing the following command:  
AT+GCI=nn <CR> (where nn is the country/region code).  
3. OK displays.  
4. The code then displays.  
How to Verify the Code  
1. Type AT+GCI?<CR>  
or you can use this command:  
ATI5<CR>  
Example  
1. Type AT+GCI=B5<CR> to set B5 as your country/region code.  
2. Type AT+GCI?<CR> or ATI5<CR> to verify that B5 was set.  
B5 indicates the configuration is set for any B5 country such as Canada and the United  
States.  
Step 4 - Install PhoneTools  
Note: PhoneTools may or may not be included on the MultiModemII CD according to your company's  
preference.  
Data communications software gives you access to commands that govern how the modem operates;  
that is, how the modem handles incoming and outgoing data streams, etc.  
MultiTech includes a data communications software package (PhoneTools) on the product CD shipped  
with your modem. In general, the modem will work with most data communications software packages.  
1. Insert the MultiModemII CD into your CD-ROM drive. Allow Autorun to bring up the introductory  
screen.  
2. Click on the PhoneTools icon and choose the appropriate language.  
3. Follow the PhoneTools installation wizard. No input is needed. You may choose to view the  
“Readme” file and whether or not to run PhoneTools immediately.  
Windows NT/2000/XP Note: During installation, an advisory screen may appear saying “FAX  
capture driver installation” - this may cause a delay in the installation. This is normal. The  
installation process has not failed or stalled. Simply wait a few moments until this screen  
disappears.  
4. After installation, you can launch PhoneTools either from a desktop icon or from the Start |  
Programs menu. Typically, it’s not necessary to reboot before using PhoneTools.  
11  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3 - Using the Front Panel  
Chapter 3 - Using the Front Panel  
Like any modem, your Multi-Tech modem operates only under the control of a communication  
program, such as the PhoneTools program included with the modem. It also operates under other  
general-purpose data communication programs, such as Windows Terminal and HyperTerminal. For  
information on how to use the modem with the communication program of your choice, please refer to the  
program’s documentation.  
Modem Configuration  
Your modem normally is configured through Windows or through the communication program you are  
using. The default settings work best for most purposes. See “Step 4: Install PhoneTools” in Chapter 2 for  
help in setting up your communication program.  
You also can configure your modem either through the front panel or by sending AT commands to the  
modem. The AT commands can be found in the AT Reference Guide on the CD shipped with this  
modem.  
Figure 3-1. Front panel  
LED Indicators  
The MT5600BA-V.92 has six LED indicators on the front panel that indicate status and activity:  
Receive Data. The RD indicator flashes when the modem is receiving data.  
Transmit Data. The TD indicator flashes when the modem is transmitting data.  
Carrier Detect. The CD indicator lights when the modem detects a valid carrier signal from  
another modem. It is on when the modem is communicating with the other modem, and off when  
the link is broken.  
Off-Hook. The OH indicator lights when the modem is off-hook, which occurs when the  
modem is dialing, online, or answering a call. The LED flashes when the modem pulse-dials.  
Terminal Ready. The TR indicator lights when a communication program is using the  
modem. It means the modem is ready for an outgoing or incoming call. It goes off when the  
communication program disconnects the serial port. When it goes off, a connected modem will  
disconnect.  
Test Mode. The TM indicator lights when the modem is in test mode.  
12  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3 - Using the Front Panel  
Liquid Crystal Display (LCD)  
The MultiModemII’s backlit liquid crystal display (LCD) has two functions: to display the current status of  
the modem and to display configuration menus, which are selected using the four pushbuttons on the  
front panel.  
Option Selection  
To select most configuration options, simply display the option in the LCD, and then press the Enter  
button to select it. An OPTION SET message appears to confirm the selection. To exit the OPTION SET  
message, press any button.  
Some options, such as password options and phone number options, require you to enter a character  
string. To select a character, press the Ç and È buttons. To go to the next character position, press  
Å
the Æ button. To backspace, press the Æ button before selecting a character. To exit without saving,  
press the Æ button several times. To save a character string, press the Enter button.  
Menu Structure  
The LCD menus have a tree structure with multiple trunks, limbs, branches, and twigs. For a schematic  
view, refer to the menu map on the next page.  
Trunks are the major divisions of the menu tree. There are seven trunks: Status, Basic Options, Ad-  
vanced Options, Remote Configuration, Diagnostics, Phone Number Memory, and Caller ID. Use the Ç  
and È buttons to move between trunks.  
Å
Limbs are subdivisions of trunks. Use the Æ button to move from a trunk onto its first limb, and the Ç  
and È buttons to move between limbs on the trunk.  
Å
Branches are subdivisions of limbs. Use the Æ button to move from a limb onto its first branch, and the  
and È buttons to move between branches on the limb.  
Ç
Å
Twigs are status screens and options that are accessible only from branches. Use the Æ button to move  
from a branch to its first status screen or option; then press the Ç and È buttons to move between  
Å
options, and press the Enter button to select an option.  
13  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3 - Using the Front Panel  
Menu Overview  
Trunks  
Limbs  
Branches  
Twigs  
Manual Orig.?  
Status =  
Idle  
Manual Answer?  
Ent  
Status =  
,
,
Ent  
, ,  
,
,
( automatic selection )  
Status =  
Online  
49333,Async,Lapm  
,
Disconnect?  
PSTN?  
,
Ent  
,
Line Type  
Options  
Current Settings=  
Basic Options  
Online Options  
, ,  
Ent  
, ,  
, ,  
, ,  
,
PSTN  
Error Correction  
Dialing Options  
, ,  
Current Settings=  
EC on? (&E2)  
, ,  
Ent  
Options  
, ,  
,
&E1  
DTR normal?  
(&D2)  
Advanced Options  
Remote Config.  
DTR Options  
Current Settings=  
,
,
, ,  
, ,  
Ent  
, ,  
,
Password  
&D2  
Current Settings=  
Diagnostic  
Options  
Carrier Detect  
Options  
CD forced on?  
Ent  
, ,  
, ,  
,
&C1 &C4  
, ,  
(&C0)  
Current Settings=  
Enabled  
Remote  
Config.  
Phone Number  
Mem. Ops.  
Enable / Disable  
Enable RC?  
,
,
, ,  
Ent  
, ,  
,
R,C,  
,
Remote Config.  
Enter Password  
A
,
Password  
Diagnostic  
Options  
Diagnostics  
Test in Progress  
Terminate RDL?  
Initiate AL?  
Analog Loopback  
, ,  
Ent  
, ,  
,
, ,  
Initiate DL?  
, ,  
Ent  
,
Ent  
Phone #1?  
Phone Number  
List Phone  
Phone #0?  
Phone Number  
Mem. Ops.  
Memory  
Numbers  
, ,  
,
,
, ,  
, ,  
Enter Phone  
Numbers  
Enter Phone #0?  
Enter Phone #1?  
Ent  
, ,  
Ent  
, ,  
Enable FCID?  
(#CID1)  
Caller I.D.  
Caller I.D.  
Options  
Region Setting  
#CID0  
Ent  
, ,  
,
,
Region Profile  
B5  
Region Select  
Current Setting =  
02  
Region Profile  
Region Setting  
Ent  
, ,  
,
,
XX?  
Options  
14  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3 - Using the Front Panel  
Status Trunk  
The Status Trunk shows the current operating status of the modem. Limb changes are automatic, but  
certain options can be accessed by pressing the Æ button. Note that when the modem is online, pressing  
the Æ button shows the connect status, including the data speed, connection type, and compression  
type.  
Limbs  
Twigs  
If Idle  
If  
Online  
15  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3 - Using the Front Panel  
Basic Options Trunk  
Use the Basic Options Trunk to configure the modem’s basic operating conditions. When entering a  
number, use the Ç and È buttons to scroll through a list of digits and characters. To go to the next  
Å
position, press the Æ button. To back up or to exit without dialing, press the Æ button several times.  
Limbs  
Branches  
Twigs  
Current Setting  
Async AT  
Async, SLAV?  
Async, XCLK?  
Continued on next page  
16  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3 - Using the Front Panel  
Basic Options Trunk, continued  
Limbs  
Branches  
Twigs  
Continued from previous page  
17  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3 - Using the Front Panel  
Advanced Options Trunk  
Use the Advanced Options Trunk to configure RS-232, dial backup, and callback security options. When  
entering a number or password, use the Ç and È buttons to select a character or digit. To go to the  
Å
next position, press the Æ button. To backspace or to exit, press the Æ button several times.  
Limbs  
Branches  
Twigs  
Continued on next page  
18  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3 - Using the Front Panel  
Advanced Options Trunk, continued  
Limbs  
Branches  
Twigs  
Continued from previous page  
19  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3 - Using the Front Panel  
Remote Configuration Options Trunk  
Use the Remote Configuration Options Trunk to enable or disable remote configuration on the modem,  
and to change the password. When entering the password, use the Ç and È buttons to scroll through  
Å
the alphabet. To go to the next character position, press the Æ button. To backspace or to exit, press the  
Æ button several times.  
Limb  
Branches  
Twigs  
Diagnostic Options Trunk  
Use the Diagnostic Options Trunk to run loopback tests on the modem. When a test is in progress, the  
TM indicator lights.  
Limb  
Branches  
Twigs  
Note: Digital Loopback and Remote Digital Loopback tests must be performed using AT Commands. The  
LCD option to run these tests has been temporarily removed.  
20  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3 - Using the Front Panel  
Phone Number Memory Options Trunk  
The MultiModemII can store up to four telephone numbers for speed dialing. Use the Phone Number  
Memory Options Trunk to store, list, and dial these numbers. When entering a number, use the Ç and  
Å
È buttons to scroll through the available digits and dialing commands. To go to the next position, press  
the Æ button. To backspace or to exit, press the Æ button several times.  
Limb  
Branches  
Twigs  
Caller ID Options Trunk  
Use the Caller ID Options Trunk to enable or disable Caller ID operation.  
Limb  
Branches  
Twigs  
Note: See the overview drawing for setting country or region codes.  
21  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3 - Using the Front Panel  
Menu Options  
This section describes important LCD screens and options. Many, but by no means all, of the options  
have AT command equivalents.  
Status  
Status screens display the current status of the modem. Though limb changes are automatic, certain  
options can be selected by pressing the Æ button.  
STATUS = IDLE. The modem is ready but inactive. This screen appears when the  
modem is first turned on, and is the starting point for accessing all other screens.  
Three options are available from this screen by pressing the Æ button:  
MANUAL ORIG.? Places the modem in originate mode for the  
time specified by register S7. Use this option to connect to a  
remote modem by manually dialing the number on a phone  
connected to the local modem. When the remote modem answers,  
press the Enter button to establish a connection with the remote  
modem. You can also use this option to temporarily place the  
modem in originate mode for back-to-back testing.  
MANUAL ANSWER? Places the modem in answer mode for the  
time specified by register S7. You can use this option to  
temporarily place the modem in answer mode for back-to-back  
testing.  
BUSY OUT MODEM? Takes the modem out of service by putting  
it into an off-hook state so that a calling modem receives a busy  
signal.  
MODEM BUSIED OUT. Shows that the modem is busied out. To  
return the modem to normal service, press Æ, Enter.  
STATUS = ONLINE. The modem is connected to another modem. Two options are  
available from this screen by pressing the Æ button:  
Connect Status. Shows the connect speed, connection type,  
and error correction being used.  
DISCONNECT? Press the Enter button to force the modem to  
hang up. Same as the ATH command.  
RINGING. A remote modem or caller is attempting to establish a connection. One  
option is available from this screen by pressing the Æ button:  
MANUAL ANSWER? Forces the modem to answer the phone.  
You can use this option to establish a connection if autoanswer  
is turned off (S0=0). Same as the ATA command.  
22  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3 - Using the Front Panel  
Basic Options  
The following screens are used to configure the modem’s basic operating conditions.  
ONLINE OPTIONS. The following screens are used to configure the online operation  
of the modem:  
LINE TYPE OPTIONS. Use the Æ and Enter buttons to select  
from the following line types: dial-up (PSTN), two-wire leased  
line originate or answer, and four-wire leased line originate or  
answer.  
ERROR CORRECTION OPTIONS. Use the Æ and Enter but-  
tons to turn error correction on or off, or to select automatic error  
correction. Same as the &E0, &E1, and &E2 commands.  
FLOW CONTROL OPTIONS. Use the Æ and Enter buttons to  
select no flow control, hardware flow control, or software flow  
control. Same as the &E3, &E4, and &E5 commands.  
DIALING OPTIONS. The following screens are used to configure dialing options or  
to dial manually.  
TONE/PULSE. Use the Æ and Enter buttons to select between  
DTMF tone dialing and pulse dialing. Same as the T and P com-  
mands.  
BLIND/SMART DIAL OPTIONS. Use the Æ and Enter buttons  
to select blind dialing, in which the modem sends the OK, CON-  
NECT, RING, NO CARRIER, ERROR and NO ANSWER mes-  
sages to the computer and does not look for a dial tone or busy  
signal, or smart dialing, in which the modem sends all messages  
to the computer, including NO DIALTONE and BUSY. Same as  
the X0 and X4 commands.  
DIAL NUMBER. Use the front panel buttons to enter a phone  
number and dial it. To scroll through a list of digits and charac-  
ters, press the Ç and È buttons. To go to the next position,  
Å
press the Æ button. To back up or to exit without dialing, press  
the Æ button several times. To dial the number, press the Enter  
button. Same as the D command.  
DTR DIALING. Use the Æ and Enter buttons to enable or dis-  
able DTR dialing. DTR dialing is popular in synchronous applica-  
tions. In DTR dialing, the modem automatically dials the number  
stored in memory location 0 when it detects a high DTR (Data  
Terminal Ready) signal on the RS-232 interface. The DTR signal  
must remain high for the duration of the call. To store the DTR  
dialing number, use the &Z0= command or the ENTER PHONE  
#0 menu option.  
Note: Plug and Play does not function if DTR dialing is enabled.  
DTR is used during Plug and Play, and DTR dialing interferes  
with it.  
23  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3 - Using the Front Panel  
COMMAND MODE OPTIONS. The following screens are used to configure result  
code responses.  
ENABLE/DISABLE RESPONSE. Use the Æ and Enter buttons  
to enable or disable the sending of result codes to the computer.  
Same as the Q0 and Q1 commands.  
VERBOSE/TERSE RESPONSE. Use the Æ and Enter buttons  
to select verbose or terse result codes. Same as the V0 and V1  
commands.  
ENABLE/DISABLE CMD MODE. Use the Æ and Enter buttons  
to enable or disable the modem’s ability to accept AT commands  
.
SYNC/ASYNC OPTIONS. Use the Æ and Enter buttons to select the method of data  
transmission.  
ASYNC, NORM? Normal asynchronous transmission using the  
AT command set.  
ASYNC, V.25bis? Asynchronous transmission using the V.25bis  
command set.  
SYNC, NORM? Normal synchronous transmission using any  
command set.  
V.25bis HDLC NRZ? V.25bis synchronous transmission using  
NRZ encoding.  
V.25bis HDLC NRZI? V.25bis synchronous transmission using  
NRZI encoding.  
V.25bis BISYNC? V.25bis bisynchronous transmission.  
RESET FACTORY DEFAULTS. Use the Æ and Enter buttons to reset Profile 0 and  
the modem’s active configuration to the factory defaults. Same as the AT&F&W  
command string.  
CONNECT RATE OPTIONS. Use the Æ and Enter buttons to change the modem’s  
serial port and data transmission speeds.  
SERIAL BAUD RATE. Use the Æ and Enter buttons to select  
the modem’s serial port speed. The valid range is 1200 to  
115200 bps. Same as the $SB commands.  
MODEM SPEED. Use the Æ and Enter buttons to select the  
modulation protocol to use in originating or answering a  
connection. This also selects the maximum transmission speed  
at which the modem can operate. Same as the +MS=[mod]  
command.  
24  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3 - Using the Front Panel  
Advanced Options  
RS232 OPTIONS. The following screens are used to configure the RS-232 interface.  
DTR OPTIONS. Use the Æ and Enter buttons to select how the  
modem responds to the high to low transition of the DTR signal  
sent by the computer. DTR NORMAL causes the modem to  
hang up; IGNORE DTR allows operation with computers that do  
not provide DTR; and RESET ON DTR È causes the modem to  
perform a soft reset as if the Z command were received. Same as  
the &D0, &D2, and &D3 commands.  
CARRIER DETECT OPTIONS. Use the Æ and Enter buttons  
to select whether CD will be forced high (CD FORCED ON) or  
whether it will go high when the remote modem’s carrier signal is  
detected, and go low when the carrier signal is not detected (CD  
NORMAL). Same as the &C0 and &C1 commands. When using  
callback security on UNIX systems, select CD LOW IN CB to  
force CD low until the proper callback security password has  
been entered or until a disconnect occurs. This prevents the  
UNIX login prompt from being displayed before the callback se-  
curity ENTER PASSWORD prompt appears. Select CD NOR-  
MAL IN CB to disable this feature. Same as the &C5 and &C4  
commands.  
CTS OPTIONS. Use the Æ and Enter buttons to select whether  
the CTS state will follow the RTS state when on line (CTS  
NORM) or whether CTS will always be high (CTS ON). Same as  
the &R0 and &R1 commands.  
DIALBACKUP/LL OPTIONS. The following screens are used to configure dial back-  
up for four-wire leased line operation. For more information, see Chapter 4, “Leased  
Line Operation.”  
DIAL BACKUP NUMBER. Use to enter a dial backup number.  
To scroll through a list of digits and characters, press the Ç  
Å
and È buttons. To go to the next position, press the Æ button.  
To back up or to exit without saving, press the Æ button several  
times. To save the number, press the Enter button. Note: Only  
16 characters can be displayed at a time. To see characters 17–30,  
press the È button. To go to the previous screen, press the Å  
button. To go to the next screen, press the Æ button.  
TIME TO RESTORE (S15). Sets how frequently leased line  
restoral attempts occur when the modems are in dial backup  
mode. The restore time interval can be set from 10 to 255 min-  
utes in one minute increments. A value of 0 disables dial back-  
up. Same as the S15= command.  
DIALBACKUP TIME (S17). Use to set how long the modem  
waits after a leased line failure before it attempts a dial backup  
connection. The timer can be set from 1 to 255 minutes in one  
minute increments. Same as the S17= command.  
25  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3 - Using the Front Panel  
CALLBACK SECURITY. Use the Æ and Enter buttons to turn callback security on  
or off. Same as the #DB0 and #DB1 commands. For more information about call-  
back security, see Chapter 6, “Callback Security.”  
PASSWORD SETUP. Use to enter callback security passwords  
in memory locations 1–30. Each password must be six to ten  
characters in length. To scroll through a list of digits and charac-  
ters, press the Ç and È buttons. To go to the next position,  
Å
press the Æ button. To back up or to exit without saving, press  
the Æ button several times. To save the password, press the  
Enter button. Same as the #CBP= command.  
CALLBACK NUMBER. Use to enter callback security phone  
numbers in memory locations 1–30. Each number can be up to  
30 characters long. Same as the #CBN= command. Note: Only  
16 characters can be displayed at a time. To see characters 17–30,  
press the È button. To go to the previous screen, press the Å  
button. To go to the next screen, press the Æ button.  
S-REGISTER OPTIONS. Use the Æ, È, and Enter buttons to display the current  
S-register values and enter new values. Same as the Sr? and Sr=n commands.  
VIEW S-REGISTER SETTINGS. Use the Æ, È, Ç , and Enter  
Å
buttons to select the number of the S-register whose value you  
want displayed. To scroll through a list of digits, press the Ç  
Å
and È buttons. To go to the next position, press the Æ button.  
To back up or to exit without saving, press the Æ button several  
times. To display the value, press the Enter button. Same as  
the Sr? command.  
SET S-REGISTER. Use the Æ, È, Ç , and Enter buttons to  
Å
select the number of the S-register whose value you want to  
change, and the value you want to enter. To scroll through a list  
of digits, press the Ç and È buttons. To go to the next posi-  
Å
tion, press the Æ button. To back up or to exit without saving,  
press the Æ button several times. Same as the Sr=n com-  
mand.  
MONITOR OPTIONS. Use the Æ, È, and Enter buttons to display line quality and  
the line signal-to-noise ratio.  
LINE QUALITY. Use the Æ and Enter buttons to display line  
signal quality as a three-digit number. The higher order byte of  
the EQM value is displayed. Based on the EQM value, retrain or  
fallback/fall forward may be initiated if enabled by %E1 or %E2.  
Same as the %Q command.  
SIGNAL TO NOISE RATIO. Use the Æ and Enter buttons to  
display the line signal-to-noise ratio in dB.  
26  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3 - Using the Front Panel  
Remote Configuration Options  
The following screens are used to configure remote configuration options. For more  
information about remote configuration, see Chapter 5, “Remote Configuration.”  
ENABLE/DISABLE R.C. Use the Æ and Enter buttons to turn  
remoteconfiguration on or off.  
REMOTE CONFIG. PASSWORD. Use to enter the remote con-  
figuration password. To scroll through a list of digits and charac-  
ters, press the Ç and È buttons. To go to the next position,  
Å
press the Æ button. To back up or to exit without saving, press  
the Æ button several times. To save the password, press the  
Enter button.  
Diagnostic Options  
Use the following screens to turn loopback tests on and off.  
ANALOG LOOPBACK. Press the Æ and Enter buttons to start  
the analog loopback test. The TEST IN PROGRESS screen  
appears. To stop the test, press the Æ and Enter buttons again.  
DIGITAL LOOPBACK. Press the Æ and Enter buttons to start  
the local digital loopback test. The TEST IN PROGRESS  
screen appears. To stop the test, press the Æ and Enter but-  
tons again. Same as the &T3 command.  
REMOTE DIGITAL LOOPBACK. Press the Æ and Enter but-  
tons to start the remote digital loopback test. The TEST IN  
PROGRESS screen appears. To stop the test, press the Æ and  
Enter buttons again. Same as the &T6 command.  
Note: Digital Loopback and Remote Digital Loopback tests must be performed using AT Commands. The  
LCD option to run these tests has been temporarily removed.  
Phone Number Memory Options  
Use the following screens to list, enter, and dial stored phone numbers. Up to four  
phone numbers can be stored. The number in memory location 0 is used for DTR  
dialing, if DTR dialing is enabled. Note: Only 16 characters can be displayed at a time.  
To display characters 17–30, press the È button. To go to the previous screen, press  
the Å button. To go to the next screen, press the Æ button.  
LIST PHONE NUMBERS. Press the Æ button several times to  
display the phone number stored in each memory location.  
ENTER PHONE NUMBERS. Use to store up to four phone num-  
bers in memory locations 0–3. Each number can have up to 30  
characters. To scroll through a list of digits and characters, press  
the Ç and È buttons. To go to the next position, press the Æ  
Å
button. To back up or to exit without saving, press the Æ button  
several times. To save the number, press the Enter button.  
Same as the &Z= commands.  
DIAL STORED NUMBERS. Press the Æ and Enter buttons to  
dial a stored phone number. Same as the DS= commands.  
27  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 3 - Using the Front Panel  
Caller ID Options  
Press the Æ and Enter buttons to enable formatted (FCID) or unformatted (UCID)  
Caller ID, or to disable Caller ID altogether. Same as the #CID=0, #CID=1, and  
#CID=2 commands.  
Note: Because Caller ID information is sent between the first and second ring,  
register S0 must be set to 2 or more rings for the modem to receive Caller ID  
information.  
28  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 4 - Leased Line Operation  
Chapter 4 - Leased Line Operation  
This chapter describes how to use the MultiModemII modem on a leased line.  
A leased line is a private, permanent, telephone connection between two points. Unlike normal dialup  
connections, a leased line is always active. The modems automatically connect when they are attached  
to the line and are turned on. Because a leased line is always active, one of the two modems on the line  
must be configured as the originate modem and the other as the answer modem; however, it does not  
matter which is which.  
In the event of an interruption, leased line modems automatically reconnect when the data line or power  
is restored. The modem also supports dial backup, which enables the modem to automatically switch to a  
dial-up connection if the leased line goes down.  
The modem supports both two-wire and four-wire leased-line operation.  
Two-Wire Setup  
1. For two-wire leased line operation on the MT5600BA modem, connect the  
provided modular telephone cable to the LINE jack. For two-wire leased line  
operation on the MT5600BL modem, connect the provided modular telephone  
cable to the LEASED jack. Connect the other end of the cable to the two-wire  
leased line jack or terminals supplied by the telephone company.  
2. Turn on the modem.  
3. Starting at the STATUS screen, press the following buttons on the front panel:  
È, Æ, È, È, È, Æ. The CURRENT SETTING= screen appears.  
4. If the CURRENT SETTING= screen shows ASYNC AT, press Ç and go to  
Å
step 7. If it shows anything else, press Æ to go to the ASYNC, NORM? screen.  
5. Press the Enter button to select normal asynchronous operation.  
6. The OPTION SET screen appears. Press Ç to exit to the SYNC/ASYNC  
Å
OPTIONS screen.  
7. Press Ç , Ç , Ç , Æ, Æ, Æ, Æ. The 2 WIRE LEASE? ORIG screen  
Å
Å
Å
appears.  
8. Choose one of two actions:  
To set up the modem as the originate modem, press the Enter button.  
To set up the modem as the answer modem, press Æ to display the 2 WIRE  
LEASE? ANSWER screen, and then press the Enter button.  
Note: One of the modems in a leased line pair must be configured as the  
originate modem, and the other as the answer modem, but it does not matter  
which is which.  
9. The OPTION SET screen appears. Press Ç to exit to the ONLINE OPTIONS  
Å
screen, or Æ to exit to the CURRENT SETTING= screen to verify the selection.  
10. This completes the setup for two-wire leased line operation. Upon completion,  
the modem attempts to connect to the modem at the other end of the leased line.  
If the remote modem has not yet been configured for leased line operation, you  
may turn off the local modem until the remote one is ready.  
29  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 4 - Leased Line Operation  
Four-Wire Setup  
1. For four-wire leased line operation, connect one of the provided four-wire cables  
to the LEASED jack on the back of the modem. Connect the other end of the  
cable to a four-wire leased line jack or terminals supplied by the telephone  
company.  
2. Turn on the modem.  
3. Starting at the STATUS screen, press the following buttons on the front panel:  
È, Æ, È, È, È, Æ, Æ, Æ, Æ. The SYNC, NORM? screen appears.  
4. Press the Enter button to select normal synchronous operation.  
5. The OPTION SET screen appears. Press Ç to exit to the SYNC/ASYNC  
Å
OPTIONS screen.  
6. Press Ç , Ç , Ç , Æ, Æ, Æ, Æ, Æ, Æ. The 4 WIRE LEASE? ORIG screen  
Å
Å
Å
appears.  
7. Choose one of two actions:  
• To set up the modem as the originate modem, press the Enter button.  
• To set up the modem as the answer modem, press Æ to display the  
4 WIRE LEASE? ANSWER screen, and then press the Enter button.  
Note: One of the modems in a leased line pair must be configured as the  
originate modem, and the other as the answer modem, but it does not matter  
which is which.  
8. The OPTION SET screen appears. Press Ç to exit to the ONLINE OPTIONS  
Å
screen, or Æ to exit to the CURRENT SETTING= screen.  
9. This completes the setup for four-wire leased line operation. Upon completion,  
the modem attempts to connect to the modem at the other end of the leased line.  
If the remote modem has not yet been configured for leased line operation, you  
may turn off the local modem until the remote one is ready.  
30  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 4 - Leased Line Operation  
Dial Backup and Leased-Line Restoral  
For four-wire leased line operation, the MT5600BA-V.92 modem has a dial backup capability, in which  
the modem is connected to a standard dial-up line as well as to the leased line. If the leased line fails, the  
originate modem automatically dials and connects to the answer modem through the standard telephone  
network. While it is in dial backup mode, the modem periodically checks the leased line to see if it is  
operational. If the line is operational, the modem then attempts to restore the leased line. If the modem  
detects that it is not connected to the standard telephone network when the leased line fails, it  
immediately switches to leased line restoral.  
The dial-back timer, register S17, determines how long the modem waits after a leased line failure before  
it attempts a dial backup connection. The S17 default setting is one minute. During that minute, the  
originate modem tries to establish the leased line link. If the leased line is established during that time,  
the S17 timer is cleared and everything is back to normal. If the timer expires, the modem attempts a dial  
backup connection. The purpose of the timer for the answer modem is to determine when it can accept a  
dial-up call. Dial-back starts only when both timers have expired and the leased line is still down.  
The restore timer, register S15, determines how frequently restoral attempts occur when the modems are  
in dial backup mode. S15 can be set from 10 to 255 minutes in one minute increments. A value of 0  
disables dial backup. The default value is 30 minutes.  
Note: Register S15 must be set identically on the local and remote modems.  
The dial backup number must be set from the front panel of the modem.  
Dial Backup and Leased Line Restoral Setup  
1. Connect a modular telephone cable to the LINE jack of an MT5600BL modem set  
up for four-wire leased line operation. Connect the other end of the cable to a  
standard dialup line jack.  
2. Turn on the modem.  
3. Starting at the STATUS screen, press the following buttons on the front panel:  
È, È, Æ, È, Æ, Æ, Æ. The ENTER NUMBER screen appears.  
4. Press the Ç or È button several times to select the first digit in the dial backup  
Å
telephone number.  
5. Press the Æ button to go to the next digit in the number.  
Note: To backspace or to cancel an entry, press Æ several times.  
6. The number can be up to 30 characters in length. Repeat steps 4 and 5 until the  
number is entered, and then press the Enter button to store it. The DIAL BACK-  
UP # STORED screen appears.  
7. Press the Enter button again to go to the DIAL BACKUP NUMBER screen.  
Note: Steps 8 through 15 are optional.  
31  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 4 - Leased Line Operation  
8. To change the default restore time, press È to go to the TIME TO RESTORE  
(S15) screen, then press Æ, Æ. The ENTER TIME IN MINUTES screen ap-  
pears.  
9. Press the Ç or È button several times to select the first digit in the number.  
Å
10. Press the Æ button to go to the next digit in the number.  
11. Repeat steps 9 and 10 until you have entered a value between 10 and 255, or 0  
to disable dial backup, and then press the Enter button to store it. The TIME  
STORED screen appears.  
12. Press the Enter button to return to the TIME TO RESTORE (S15) screen.  
13. To change the default dial backup time, press È to go to the DIAL BACKUP  
TIME (S17) screen, then press Æ, Æ. The ENTER TIME IN MINUTES screen  
appears.  
14. Repeat steps 9 and 10 until you have entered a value between 0 and 255, and  
then press the Enter button to store it. The TIME STORED screen appears.  
15. Press the Enter button again to return to the DIAL BACKUP TIME (S17) screen.  
16 .Dial backup and leased line restoral setup is complete.  
Note: Registers S15 and S17 can also be changed using the Sr=n AT command.  
See the AT Command Reference Guide on the CD that was shipped with your  
modem.  
Note: The dial backup number can be displayed only 16 characters at a time. To see  
characters 17–30, press the È button. To go to the previous screen, press the Å  
button. To go to the next screen, press the Æ button.  
32  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 5 - Remote Configuration  
Chapter 5 - Remote Configuration  
Remote configuration is a network management tool that allows you to configure modems anywhere in  
your network from one location. With password-protected remote configuration, you can issue AT  
commands to a remote MultiModemII modem for maintenance or troubleshooting as if you were on-site.  
Basic Procedure  
The following steps are valid regardless of whether the connection is established by the local or the  
remote MultiModemII modem.  
1. Establish a data connection with a remote MT5600BA-V.92 modem.  
2. Send three asterisks to initiate remote configuration. The remote modem responds:  
Online Remote Access  
Remote password:  
3. Type the remote configuration password, and then press ENTER. The default is “MULTITECH.” It is  
not case-sensitive.  
If the password is incorrect, the word CONNECT appears, and the local modem is returned to  
online mode.  
If the password is correct, an >AT_command prompt appears.  
4. Type AT commands to configure the remote modem. It is not necessary to precede the commands  
with “AT.”  
5. When you have finished configuring the remote modem, type *E and press ENTER to exit remote  
configuration mode and return to online data mode. You can now break the connection in the normal  
way.  
Note: The dialing command is not allowed in remote configuration mode.  
Setup  
Multi-Tech modems are shipped with a default setup password (MULTITECH). Because anyone who has  
an owner’s manual knows the default setup password, for security you should change the password and  
possibly also the remote configuration escape character.  
Changing the Remote Configuration  
Password  
The remote configuration password can be changed only from the front panel of the modem:  
1. Turn on the modem.  
2. Starting at the STATUS screen, press È È È Æ Æ È Æ to access the ENTER  
PASSWORD screen.  
33  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 5 - Remote Configuration  
3. To change the password, press Ç or È to select the first character of the  
Å
password, and then press Æ to go to the next character. Repeat until you have  
entered the entire password.  
4. To cancel the new password, press Æ until the password is erased. To save the  
new password, press the Enter button. The next time you remotely configure the  
modem you must use the new password.  
Changing the Remote Escape Character  
To improve security, you can change a remote modem’s remote configuration escape character. The  
remote configuration escape character is stored in register S13. The factory default is 42, which is the  
ASCII code for the asterisk character (*). Setting S13 to 0 (zero) disables remote configuration entirely—  
but if you do this remotely, you won’t be able to change it back remotely!  
1. Establish a remote configuration link with the remote modem as described in  
“Basic Procedure.”  
2. Type ATS13=n, where n is the ASCII code for the new remote configuration  
escape character, and then press ENTER.  
3. Save the new value by typing AT&W and pressing ENTER.  
4. Type ATO<CR> to exit remote configuration.  
34  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 6 - Callback Security  
Chapter 6 - Callback Security  
This chapter describes how to use callback security with your modem.  
Callback security protects your network from unauthorized access and helps control long distance costs.  
When callback security is enabled, all callers are requested to enter a password. If the password is  
invalid, the caller can try twice more before the modem hangs up. If the password is valid, the modem  
hangs up and returns the call by dialing the phone number associated with the password.  
It is possible to implement password protection without callback by storing a hyphen (-) before the  
callback phone number. The caller must then append a hyphen to his password to establish the direct  
connection.  
The modem can store up to 30 callback phone numbers and 30 callback passwords. Phone numbers can  
be up to 30 characters long and can contain the pause (,) and wait (W) characters in addition to the digits  
and characters normally found on a touch-tone keypad. Passwords can be up to 10 characters long.  
Callback phone numbers are associated with callback passwords by being assigned to the same callback  
memory location. For example, if you assign the password “APRICOT” to memory location 16 and, in a  
separate operation, also assign phone number 6127853000 to memory location 16, the modem calls  
phone number 6127853000 when it receives the password “APRICOT.”  
Because there is no way to examine the passwords and phone numbers stored in the modem, it is  
important to write them down as you enter them. A form that you can print out for this purpose is provided  
on the last page of this chapter.  
Setup Procedures  
Turning Callback Security On and Off  
Note: Autoanswer must be enabled (S0=1 or S0=2) for callback security to work.  
AT Command Method  
1.  
2.  
Open a terminal program, such as HyperTerminal.  
In the terminal window, type one of the following commands:  
To turn on callback security, type AT#DB1 and press ENTER. With remote callback security  
turned on, each caller is asked to enter a password, then is disconnected and called back by  
the modem. Also, dialing number locations 0–3, for use with the DS=y dialing command, are  
replaced by callback dialing number locations 1–30.  
To turn off callback security, type AT#DB0 and press ENTER. Callers no longer need a password  
to connect to the modem, the modem is unable to call them back, and stored dialing number  
locations 0–3 become available.  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
35  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 6 - Callback Security  
Front Panel Method  
1. Turn on the modem.  
2. Starting at the STATUS screen, press the following buttons on the front panel to  
turn callback security on and off:  
To turn on callback security, press È, È, Æ, È, È, Æ, Æ to display the  
CALLBACK ON? option, and then press the Enter button to select the option.  
When remote callback security is turned on, each caller is asked to enter a  
password, then is disconnected and called back by the modem. Also, dialing  
number locations 0–3, for use with the DS=y dialing command, are replaced  
by callback dialing number locations 1–30.  
To turn off callback security, press È, È, Æ, È, È, Æ, Æ, Æ to display the  
CALLBACK OFF? option, and then press the Enter button to select the option.  
Callers no longer need a password to connect to the modem, the modem is  
unable to call them back, and stored dialing number locations 0–3 become  
available.  
Assigning Callback Passwords  
AT Command Method  
1. Open a terminal program, such as HyperTerminal.  
2. To store a callback password for the first callback memory location, type  
AT#CBP01=xxxxxxxxxx, where xxxxxxxxxx is the first password, and press  
ENTER. The password must be six to ten characters in length.  
3. To store a callback password for the second callback memory location, type  
AT#CBP02=xxxxxxxxxx, where xxxxxxxxxx is the second password, and press  
ENTER. Note that the memory location number in the command is incremented by  
one.  
4. Repeat as many times as necessary, up to memory location 30, until all pass-  
words have been entered.  
Front Panel Method  
1. Turn on the modem.  
2. Starting at the STATUS screen, press the following buttons on the front panel:  
È, È, Æ, È, È, Æ, È, Æ. The ENTER PASSWORD #1? screen appears.  
3. Press the Enter button on the front panel to select callback memory location 1.  
The ENTER PASSWORD screen appears.  
4. Press the Ç or È button several times to select the first letter in the password.  
Å
5. Press the Æ button to go to the next letter in the password.  
Note: To backspace or to cancel an entry, press Æ several times.  
6. The password must be six to ten characters in length. Repeat steps 4 and 5 until  
the password is entered, and then press the Enter button to store it. The PASS-  
WORD STORED screen should appear.  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
36  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 6 - Callback Security  
7. Press the Enter button again to go to the PASSWORD SETUP screen.  
8. Press Æ, Æ to go to the ENTER PASSWORD #2? screen.  
9. Repeat steps 3–7 to enter the next password.  
10. Repeat as many times as necessary, up to memory location 30, until all  
passwords have been entered.  
Warning: There is no way to review an entry to confirm that it has been entered  
correctly. If you attempt to look at a password entry by pressing the Enter button for  
an ENTER PASSWORD #n? screen, it is possible to accidentally erase the entry.  
Assigning Callback Phone Numbers  
AT Command Method  
1. Open a data communication program, such as HyperTerminal.  
2. To store a callback phone number in the first memory location, type  
AT#CBN01=xxxxxxxxxx, where xxxxxxxxxx is the dialing string, and press ENTER.  
The dialing string can include the digits 0 through 9 and any of the following  
characters: #, *, comma (,), semicolon (;), W, A, B, C, and D. Up to 30 characters  
can be used. Example: AT#CBN01=9,16127853000. If a direct connection with  
password protection, but without hangup and callback, is desired, the first  
character in the dialing string should be a hyphen (-).  
3. To store a callback phone number in the second memory location, type  
AT#CBN02=xxxxxxxxxx, where xxxxxxxxxx is the dialing string, and press ENTER.  
Note that the memory location number in the command is incremented by one.  
4. Repeat as many times as necessary, through memory location 30, until all  
dialing strings have been entered.  
Front Panel Method  
1. Turn on the modem.  
2. Starting at the STATUS screen, press the following buttons on the front panel:  
È, È, Æ, È, È, Æ, È, È, Æ. The ENTER NUMBER #1? screen appears.  
3. Press the Enter button on the front panel to select memory location 1. The  
ENTER NUMBER screen appears.  
4. Press the Ç or È button several times to select the first character. If a direct  
Å
connection, without hangup and callback, is desired, the first character in the  
dialing string should be a hyphen (-).  
5. Press the Æ button to go to the next character in the dialing string.  
Note: To backspace or to cancel an entry, press Æ several times.  
6. The number can be up to 30 characters in length. Repeat steps 4 and 5 until the  
number is entered, and then press the Enter button to store it. The NUMBER  
STORED screen should appear.  
7. Press the Enter button again to go to the CALLBACK NUMBER screen.  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
37  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 6 - Callback Security  
8. Press Æ, Æ to go to the ENTER NUMBER #2? screen.  
9. Repeat steps 3–7 to enter the next number.  
10. Repeat as many times as necessary, up to memory location 30, until all numbers  
have been entered.  
Warning: There is no way to review an entry to confirm that it has been entered  
correctly. If you attempt to look at a number entry by pressing the Enter button for an  
ENTER NUMBER #n? screen, it is possible for you to accidentally erase the entry.  
Calling Procedure  
Use the following procedure to call a modem that has callback security enabled.  
Note: Autoanswer must be enabled on the calling modem (S0=1 or S0=2).  
1. Using a data communication program such as HyperTerminal, dial the number of  
the callback modem.  
2. When the connection is established, the callback modem responds with a  
request for a password.  
3. Type the password for your modem, and then press ENTER. You have three  
attempts to enter a valid password or be disconnected.  
4. If the password is valid, the callback modem disconnects. Then, after a short  
delay, it calls the number associated with the password and establishes a  
working connection.  
Note: If you are calling a direct connect number, you must append a hyphen (-) to  
the password. If the corresponding phone number has - as its first character, you will  
be able to go directly online with the callback modem. If the corresponding phone  
number has no - character, you will be prompted for a different password.  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
38  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 6 - Callback Security  
Callback Security Commands  
The following AT commands are used with callback security.  
Command: #DBn Callback Enable/Disable  
Values:  
n = 0 or 1  
Default:  
0
Description:  
Enables or disables callback security. When callback security  
is enabled, phone number memory locations 0–4, used for  
quick dialing and DTR dialing, become unavailable and are  
replaced by callback security memory locations 1–30. The  
phone number memory locations and their contents are  
restored when callback security is disabled.  
#DB0 Disables callback security.  
#DB1 Enables callback security.  
Command: #CBNy=[-]x Store Callback Number  
Values:  
y = 01–30  
x = dialing string  
Default:  
None  
Description:  
Stores the callback dialing string x in memory location y. The  
dialing string can include the digits 0 through 9 and any of the  
following characters: #, *, comma (,), semicolon (;), W, A, B, C,  
and D. Up to 30 characters can be used. Example:  
AT#CBN01=9,16127853000. If the optional - character  
precedes the dialing string, and the caller appends the same  
character to the password, the caller is connected immediately,  
and the hangup and callback are skipped.  
Command: #CBPy=x Store Callback Password  
Values:  
y = 01–30  
x = password (6–10 characters)  
None  
Defaults:  
Description:  
Stores callback security password x in memory location y. The  
password must have 6 to 10 characters.  
Note: A direct connect password may not end with a hyphen (-).  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
39  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 6 - Callback Security  
Callback Assignments Form  
Phone Number  
Location  
01  
Password  
02  
03  
04  
05  
06  
07  
08  
08  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
40  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 7 - Troubleshooting  
Chapter 7 - Troubleshooting  
Your modem was thoroughly tested at the factory before it was shipped. If you are unable to make a  
successful connection, or if you experience data loss or garbled characters during your connection, it is  
possible that the modem is defective. However, it is more likely that the source of your problem lies  
elsewhere. The following symptoms are typical of problems you might encounter:  
None of the LEDs light when the modem is on.  
The modem does not respond to commands.  
The modem cannot connect when dialing.  
The modem disconnects while online.  
The modem cannot connect when answering.  
File transfer is slower than it should be.  
Data is being lost.  
There are garbage characters on the monitor.  
The modem doesn’t work with Caller ID.  
Fax and data software can’t run at the same time.  
If you experience problems, please check the following possibilities before calling Technical Support (see  
Appendix C).  
None of the Indicators Light  
When you turn on the modem, the LED indicators on the front panel should flash briefly as the modem  
runs a self-test, and the liquid crystal display (LCD) should light. If the LEDs and LCD remain off, the  
modem is probably not receiving power.  
Make sure the modem’s power switch is on, especially if you normally turn the modem on by turning  
on a power strip.  
If the modem is plugged into a power strip, make sure the power strip is plugged in and its power  
switch is on.  
Make sure the transformer module is firmly connected to the modem and to the wall outlet or power  
strip.  
If the power strip is on and the modem switch is on, try moving the transformer module to another  
outlet on the power strip.  
Test that the outlet is live by plugging another device, such as a lamp, into it.  
The modem or transformer module may be defective. If you have another Multi-Tech modem, try  
swapping modems. If the problem goes away, the first modem or transformer module may be  
defective. Call Technical Support for assistance.  
CAUTION: Do not under any circumstances replace the transformer module with one designed for  
another product; doing so can damage the modem and void your warranty.  
41  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 7 - Troubleshooting  
The Modem Does Not Respond to Commands  
Make sure the modem is plugged in and turned on. (See “None of the Indicators Light.”)  
Make sure you are issuing the modem commands from data communication software, either  
manually in terminal mode or automatically by configuring the software. (You cannot send  
commands to the modem from the DOS prompt.)  
Make sure you are in terminal mode in your data communication program, then type AT and press  
ENTER. If you get an OK response from your modem, your connections are good and the problem  
likely is in the connection setup in your communication software.  
Try resetting your modem by turning it off and on. If you are using DOS or Windows 3.1  
communication software, make sure the initialization string includes &F as the first command, to  
cancel any “leftover’ command that could affect the modem’s operation.  
If you don’t get an OK, the problem may still be in the communication software. Make sure you have  
done whatever is necessary in your software to make a port connection. Not all communication  
programs connect to the COM port automatically. Some connect when the software loads and  
remain connected until the program terminates. Others can disconnect without exiting the program.  
The modem’s TR indicator lights to show that the software has taken control of the modem through  
the COM port.  
Your communication software settings may not match the physical port the modem is connected to.  
The serial cable might be plugged into the wrong connector—check your computer documentation  
to make sure. Or you might have selected a COM port in your software other than the one the  
modem is physically connected to—compare the settings in your software to the physical  
connection.  
If the modem is on, the cable is plugged into the correct port, the communication software is  
configured correctly, and you still don’t get an OK, the fault might be in the serial cable. Make sure it  
is firmly connected at both ends.  
Is this the first time you have used the cable? If so, it may not be wired correctly. Check the cable  
description on the packaging to make sure the cable is the right one for your computer.  
Peripheral expansion cards, such as sound and game cards, might include a serial port  
preconfigured as COM1 or COM2. The extra serial port, or the card itself, may use the same COM  
port, memory address, or interrupt request (IRQ) as your communication port. Be sure to disable  
any unused ports.  
Windows 3.1x: To look for address or IRQ conflicts, in Program Manager select File | Run, type  
MSD, and press ENTER. Then select Mouse, COM Ports, and IRQ Status, and note the addresses  
and IRQs that are in use. If you find an IRQ conflict, note which IRQs are not being used, then  
change one of the conflicting devices to use one of the unused IRQs. If you find an address conflict,  
change the address of one of the conflicting devices.  
To change a port address or IRQ in Windows 3.1x, double-click the Control Panel icon, then the  
Ports icon. Click on the port you want to change, click Settings, click Advanced, and select the  
new port address and/or interrupt. If you wish to use COM3 or COM4, note that COM3 shares an  
IRQ with COM1, as does COM4 with COM2, so you should change their IRQs to unused ones, if  
possible.  
42  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 7 - Troubleshooting  
Windows 9x: Right-click on My Computer, select Properties from the menu, click on the Device  
Manager tab, double-click on Ports, then double-click on the communication port your modem is  
connected to. In the port’s Properties sheet, click on the Resources tab to see the port’s input/  
output range and interrupt request. If another device is using the same address range or IRQ, it  
appears in the Conflicting Device List. Uncheck Use automatic settings to change the port’s  
settings so they do not conflict with the other device, or select the port the conflicting device is on  
and change it instead. If you need to open your computer to change switches or jumpers on the  
conflicting device; refer to the device’s documentation.  
Windows NT 4.0: To look for address or IRQ conflicts, click Start, Programs, Administrative Tools  
(Common), and Windows NT Diagnostics. In the Windows NT Diagnostics dialog box, click the  
Resources tab to see which input/output ranges and interrupt requests are in use. If you need to  
open your computer to change switches or jumpers on the conflicting device; refer to the device’s  
documentation.  
The serial port might be defective. If you have another serial port, install the modem on it, change  
the COM port setting in your software, and try again.  
The modem might have a problem beyond the scope of this user guide. If you have another Multi-  
Tech modem, try swapping modems. If the problem goes away, call Technical Support for  
assistance (see Appendix D).  
The Modem Cannot Connect When Dialing  
There can be several reasons the modem fails to make a connection. Possibilities include:  
lack of a physical connection to the telephone line.  
a wrong dial tone.  
a busy signal.  
a wrong number.  
no modem at the other end.  
a faulty modem, computer, or software at the other end.  
incompatibility between modems.  
You can narrow the list of possibilities by using extended result codes. Extended result codes are  
enabled by default. If they have been disabled, include V1X4 in the modem’s initialization string, or in  
terminal mode enter ATV1X4 and press ENTER. When you dial again, the modem reports the call’s  
progress.  
If the modem reports NO DIALTONE, check that the modem’s telephone line cable is connected to  
both the modem’s LINE jack (not the PHONE jack) and the telephone wall jack. If the cable looks  
secure, try replacing it. If that doesn’t work, the problem might be in your building’s telephone  
installation. To test the building installation, plug a telephone into your modem’s telephone wall jack  
and listen for a dial tone. If you hear a dial tone, your modem might be installed behind a corporate  
phone system (PBX) with an internal dial tone that sounds different from the normal dial tone. In  
that case, the modem might not recognize the dial tone and might treat it as an error. Check your  
PBX manual to see if you can change the internal dial tone; if you can’t, change your modem’s  
initialization string to replace X4 with X3, which will cause the modem to ignore dial tones (note,  
however, that X3 is not allowed in some countries, such as France and Spain).  
43  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 7 - Troubleshooting  
If the modem reports BUSY, the other number might be busy, in which case you should try again  
later, or it might indicate that you have failed to add a 9, prefix to the phone number if you must dial  
9 for an outside line.  
If you must dial 9 to get an outside line, the easiest way to dial it automatically is to include it in the  
modem’s dial prefix, e.g., ATDT9,. Note the comma, which inserts a pause before the number is  
dialed. By inserting 9, into the dial prefix, you do not have to include it in each directory entry.  
To change the dial prefix in Windows 95 HyperTerminal, select Connect from the Call menu, click  
Dialing Properties, and type 9 in the local and long distance boxes in How I dial from this  
location.  
If the modem reports NO ANSWER, the other system has failed to go off-hook, or you might have  
dialed a wrong number. Check the number.  
If the modem reports NO CARRIER, the phone was answered at the other end, but no connection  
was made. You might have dialed a wrong number, and a person answered instead of a computer,  
or you might have dialed the correct number but the other computer or software was turned off or  
faulty. Check the number and try again, or try calling another system to make sure your modem is  
working. Also, try calling the number on your telephone. If you hear harsh sounds, then another  
modem is answering the call, and the modems might be having problems negotiating because of  
modem incompatibilities or line noise. Try connecting at a lower speed.  
The Modem Disconnects While Online  
If you have Call Waiting on the same phone line as your modem, it can interrupt your connection  
when someone tries to call you. If you have Call Waiting, disable it before each call. In most  
telephone areas in North America, you can disable Call Waiting by preceding the telephone number  
with *70 (check with your local telephone company).  
You can automatically disable Call Waiting by including the disabling code in the modem’s dial  
prefix (e.g., ATDT*70,—note the comma, which inserts a pause before the number is dialed). To  
change the dial prefix in Windows Terminal, select Settings | Modem Commands. To change it in  
HyperTerminal, select Connect from the Call menu, click Dialing Properties, check This location  
has Call Waiting, and select the correct code for your phone service.  
If you have extension phones on the same line as your modem, you or someone else can interrupt  
the connection by picking up another phone. If this is a frequent problem, disconnect the extension  
phones before using the modem, or install another phone line especially for the modem.  
Check for loose connections between the modem and the computer, the telephone jack, and AC  
power.  
You might have had a poor connection because of line conditions or the problem might have  
originated on the other end of the line. Try again.  
If you were online, it might have hung up on you because of lack of activity on your part or because  
you exceeded your time limit for the day. Try again.  
44  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 7 - Troubleshooting  
The Modem Cannot Connect When  
Answering  
The default DTR Control command (&D2) inhibits autoanswer. To enable autoanswer, change DTR  
Control to &D0, and make sure &Q0, &Q1, &Q5, or &Q6 is also set. For more information, see the  
&D command in the AT Command Reference Guide on the CD shipped with your modem. For  
information on changing the modem’s default configuration, see “Step 3: Install and Configure Your  
Software” in Chapter 2.  
Autoanswer might be disabled. Turn on autoanswer in your datacomm program or send the  
command ATS0=1 (ATS0=2 if you have Caller ID service) to your modem in terminal mode.  
File Transfer Is Slower Than It Should Be  
You might have an older UART. For best throughput, install a 16550AFN UART or a Multi-Tech ISI  
serial port card.  
If you are running under Windows 3.1 and have a 16550AFN UART, you must replace the  
Windows serial driver, COMM.DRV, to take full advantage of the UART’s speed.  
If you are using a slow transfer protocol, such as Xmodem, try Zmodem or Ymodem/G instead.  
Is your line noisy? If there is static on your line, the modem has to resend many blocks of data to  
insure accuracy. You must have a clean line for maximum speed.  
Are you downloading a compressed file with MNP 5 hardware compression enabled? Since  
hardware data compression cannot compress a file already compressed by an archiving program, the  
transfer can be marginally slower with data compression enabled than with it disabled.  
Does your Internet service provider (ISP) use the same 56K protocol as your modem? The default  
setting of your modem is to connect using either the 56K or the V.90 protocol, depending on which  
one the ISP modem is using. If your ISP uses the X2 protocol, the maximum speed you will be able  
to connect at is 33,600 bps. Check with your ISP to see which protocols it supports, and check the  
Multi-Tech Web site for the latest developments in V.92.  
Try entering the &V1 command to display information about the last connection, making a screen  
print of the connection statistics, and checking for parameters that might be unacceptable.  
Data Is Being Lost  
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 might 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 are using the modem with a Macintosh, you might have the wrong cable for  
hardware flow control.  
Try entering the &V1 command to display information about the last connection, making a screen  
print of the connection statistics, and checking for parameters that might be unacceptable.  
45  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 7 - Troubleshooting  
There Are Garbage Characters on the Monitor  
Your computer and the remote computer might 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  
communication software.  
You might be experiencing line noise. Enable error correction, if it is disabled, or hang up and call  
again; you might get a better connection the second time.  
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 &V1 command to display information about the last connection, making a screen  
print of the connection statistics, and checking for parameters that might be unacceptable.  
The Modem Doesn’t Work with Caller ID  
Caller ID information is transmitted between the first and second rings, so if autoanswer is  
turned off (S0=0) or if the modem is set to answer after only one ring (S0=1), the modem will not  
receive Caller ID information. Check your initialization string, and if necessary change it to set the  
modem to answer after the second ring (S0=2).  
Make sure that you have Caller ID service from your telephone company.  
Fax and Data Software Can’t Run at the Same  
Time  
Communication 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 communication device management application. In  
Windows 95, 98, and NT 4.0, you can have data and fax communication applications open at the  
same time, but they cannot use the same modem at the same time.  
46  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix A - Regulatory Compliance  
Appendix A - Regulatory  
Compliance  
FCC Part 68 Telecom  
1.  
2.  
3.  
4.  
This equipment complies with part 68 of the Federal Communications Commission Rules. On the  
outside surface of this equipment is a label that contains, among other information, the FCC  
registration number. This information must be provided to the telephone company.  
The suitable USOC jack (Universal Service Order Code connecting arrangement) for this equipment  
is shown below. If applicable, the facility interface codes (FIC) and service order codes (SOC) are  
shown.  
An FCC-compliant telephone cord and modular plug is provided with this equipment. This  
equipment is designed to be connected to the telephone network or premises wiring using a  
compatible modular jack that is Part 68 compliant. See installation instructions for details.  
The ringer equivalence number (REN) is used to determine the number of devices that may be  
connected to the telephone line. Excessive RENs on the telephone line may result in the device not  
ringing in response to an incoming call. In most, but not all, areas the sum of the RENs should not  
exceed 5.0. To be certain of the number of devices that may be connected to the line, as  
determined by the total RENs, contact the local telephone company.  
5.  
6.  
7.  
If this equipment causes harm to the telephone network, the telephone company will notify you in  
advance that temporary discontinuance of service may be required. But if advance notice is not  
practical, the telephone company will notify you as soon as possible. Also, you will be advised of  
your right to file a complaint with the FCC if you believe it is necessary.  
The telephone company may make changes in its facilities, equipment, operations, or procedures  
that could affect the operation of the equipment. If this happens, the telephone company will provide  
advance notice in order for you to make necessary modifications in order to maintain uninterrupted  
service.  
If trouble is experienced with this equipment (the model of which is indicated below) please contact  
Multi-Tech Systems, Inc. at the address shown below for details of how to have repairs made. If the  
trouble is causing harm to the telephone network, the telephone company may request you remove  
the equipment from the network until the problem is resolved.  
8.  
9.  
No repairs are to be made by you. Repairs are to be made only by Multi-Tech Systems or its  
licensees. Unauthorized repairs void registration and warranty.  
This equipment should not be used on party lines or coin lines.  
10. If so required, this equipment is hearing-aid compatible.  
11. Manufacturing Information:  
Manufacturer:  
Multi-Tech Systems, Inc.  
Trade Name  
MultiModemII  
Model Number:  
FCC Registration No:  
MT5600BA  
AU7USA-33378-M5-E  
Ringer Equivalence No: 0.1A  
Modular Jack (USOC):  
Service Center in USA:  
RJ11C or RJ11W (single line)  
Multi-Tech Systems, Inc.  
2205 Woodale Drive  
Mounds View, MN 55112  
U.S.A.  
(763) 785-3500  
(763) 785-9874 Fax  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
47  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix A - Regulatory Compliance  
Fax Branding Statement  
The Telephone Consumer Protection Act of 1991 makes it unlawful for any person to use a computer or  
other electronic device, including fax machines, to send any message unless such message clearly  
contains the following information:  
Date and time the message is sent  
Identification of the business or other entity, or other individual sending the message  
Telephone number of the sending machine or such business, other entity, or individual  
This information is to appear in a margin at the top or bottom of each transmitted page or on the first  
page of the transmission. (Adding this information in the margin is referred to as fax branding.)  
Since any number of fax software packages can be used with this product, the user must refer to the fax  
software manual for setup details. Typically the fax branding information must be entered via the  
configuration menu of the software.  
Canadian Limitations Notice  
Notice: The ringer equivalence number (REN) assigned to each terminal device provides an indication of  
the maximum number of terminals allowed to be connected to a telephone interface. The termination on an  
interface may consist of any combination of devices subject only to the requirement that the sum of the  
ringer equivalence numbers of all the devices does not exceed 5.  
Notice: The Industry Canada label identifies certificated equipment. This certification means that the  
equipment meets certain telecommunications network protective, operational and safety requirements.  
The Industry Canada label does not guarantee the equipment will operate to the user’s satisfaction.  
Before installing this equipment, users should ensure that it is permissible to be connected to the facilities  
of the local telecommunications company. The equipment must also be installed using an acceptable  
method of connection. The customer should be aware that compliance with the above conditions may not  
prevent degradation of service in some situations. Repairs to certified equipment should be made by an  
authorized Canadian maintenance facility designated by the supplier. Any repairs or alterations made by  
the user to this equipment or equipment malfunctions may give the telecommunications company cause  
to request the user to disconnect the equipment.  
Users should ensure for their own protection that the electrical ground connections of the power utility,  
telephone lines and internal metallic water pipe system, if present, are connected together. This  
precaution may be particularly important in rural areas.  
Caution: Users should not attempt to make such connections themselves, but should contact the  
appropriate electric inspection authority, or electrician, as appropriate.  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
48  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix A - Regulatory Compliance  
EMC, Safety, and R&TTE Directive Compliance  
The CE mark is affixed to this product to confirm compliance with the following European Community  
Directives:  
Council Directive 89/336/EEC of 3 May 1989 on the approximation of the laws of Member States  
relating to electromagnetic compatibility;  
and  
Council Directive 73/23/EEC of 19 February 1973 on the harmonization of the laws of Member  
States relating to electrical equipment designed for use within certain voltage limits;  
and  
Council Directive 1999/5/EC of 9 March 1999 on radio equipment and telecommunications terminal  
equipment and the mutual recognition of their conformity.  
International Modem Restrictions  
Some dialing and answering defaults and restrictions may vary for international modems. Changing  
settings may cause a modem to become non-compliant with national telecom requirements in specific  
countries. Also note that some software packages may have features or lack restrictions that may cause  
the modem to become non-compliant.  
New Zealand Telecom Warning Notice  
1. The grant of a Telepermit for any item of terminal equipment indicates only that Telecom has  
accepted that the item complies with minimum conditions for connection to its network. It indicates no  
endorsement of the product by Telecom, nor does it provide any sort of warranty. Above all, it  
provides no assurance that any item will work correctly in all respects with another item of  
Telepermitted equipment of a different make or model, nor does it imply that any product is  
compatible with all of Telecom’s network services.  
This equipment is not capable under all operating conditions of correct operation at the higher speed  
which it is designated. 33.6 kbps and 56 kbps connections are likely to be restricted to lower bit rates  
when connected to some PSTN implementations. Telecom will accept no responsibility should  
difficulties arise in such circumstances.  
2. Immediately disconnect this equipment should it become physically damaged, and arrange for its  
disposal or repair.  
3. This modem shall not be used in any manner which could constitute a nuisance to other Telecom  
customers.  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
49  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix A - Regulatory Compliance  
4. This device is equipped with pulse dialing, while the Telecom standard is DTMF tone dialing. There is  
no guarantee that Telecom lines will always continue to support pulse dialing.  
Use of pulse dialing, when this equipment is connected to the same line as other equipment, may  
give rise to ‘bell tinkle’ or noise and may also cause a false answer condition. Should such problems  
occur, the user should not contact the Telecom Faults Service.  
The preferred method of dialing is to use DTMF tones, as this is faster than pulse (decadic) dialing  
and is readily available on almost all New Zealand telephone exchanges.  
5. Warning Notice: No ‘111’ or other calls can be made from this device during a mains power failure.  
6. This equipment may not provide for the effective hand-over of a call to another device connected to  
the same line.  
7. Some parameters required for compliance with Telecom’s Telepermit requirements are dependent on  
the equipment (PC) associated with this device. The associated equipment shall be set to operate  
within the following limits for compliance with Telecom’s Specifications:  
For repeat calls to the same number:  
There shall be no more than 10 call attempts to the same number within any 30-minute period for  
any single manual call initiation, and  
The equipment shall go on-hook for a period of not less than 30 seconds between the end of one  
attempt and the beginning of the next attempt.  
For automatic calls to different numbers:  
The equipment shall be set to ensure that automatic calls to different numbers are spaced such  
that there is no less than 5 seconds between the end of one call attempt and the beginning of  
another.  
For automatically answered incoming calls:  
The equipment shall be set to ensure that calls are answered between 3 and 30 seconds of  
receipt of ringing.  
8. For correct operation, total of the RNs of all devices connected to a single line at any time should not  
exceed 5.  
South African Notice  
This modem must be used in conjunction with an approved surge protection device.  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
50  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix B - Technical Specifications  
Appendix B - Technical  
Specifications  
Your MultiModemII modem meets the following specifications:  
Trade Name  
MultiModemII™  
Model Number  
MT5600BA-V.92, MT5600-V.90, MT5600BL  
Server-to-Client  
Data Rates  
56K or V.92 speeds when accessing a 56K or V.92  
server (actual speed depends on server capabilities and line conditions)  
Client-to-Client  
Data Rates  
33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800,  
14400, 12000, 9600, 7200, 4800, 2400, 1200, 0-300 bps  
Fax Data Rates  
Data Format  
14400, 12000, 9600, 7200, 4800, 2400, 300 bps  
Serial, binary, synchronous and asynchronous  
AT, V.25bis, TIA/EIA TR.29 Class 2  
60 characters  
Commands  
Command Buffer  
Modem Compatibility  
Fax Compatibility  
ITU-T V.90, v.92; 56K ITU-T V.34 enhanced, V.34, V.32terbo, V.32bis,  
V.32, V.25bis, V.22bis, V.22; Bell 212A and 103/113; ITU-T V.42,  
V.42bis; ITU-T V.21 & V.23 in international versions, v.44  
ITU-T Group 3, Class 1 and 2, T.4, T.30, V.21, V.27ter, V.29, V.17, and  
TIA/EIA TR29.2, V.34, V.17  
Error Correction  
Data Compression  
Speed Conversion  
ITU-T V.42 (LAP-M or MNP 3 and 4)  
ITU-T V.42bis (4:1 throughput), MNP 5 (2:1 throughput)  
Serial port data rates adjustable to 300, 1200, 2400, 4800, 9600, 19200,  
38400, 57600, 115200, and 230400 bps  
Mode of Operation  
Fax online modes; full duplex over dial-up and two-wire or four-wire  
leased lines; data mode, command mode, online command mode, V.54  
test mode  
Flow Control  
XON/XOFF (software), RTS/CTS (hardware)  
Transmission Level  
-11 dBm (dial-up—varies depending on country or region for which the  
modem is set), -10 dBm (leased-line)  
Frequency Stability  
Receiver Sensitivity  
AGC Dynamic Range  
Interface  
0.01%  
-43 dBm under worst-case conditions  
43 dB  
TIA/EIA RS-232C/ITU-T V.24/V.28  
Connectors  
DB25F RS-232C connector; two RJ-11 phone jacks (BA model) or three  
RJ-11 phone jacks (BL model); power connector  
Cables  
Three modular telephone cords (USA); country- or region-specific  
cordage for International models; one 9-pin to 25-pin serial cable for  
International models; external power transformer  
Note: Any cables connected to the computer should be shielded to  
reduce interference.  
51  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix B - Technical Specifications  
Diagnostics  
Indicators  
Power-on self test, local analog loop, local digital loop, remote digital  
loop  
32-character backlit LCD for status and configuration information; LEDs  
for Transmit Data, Receive Data, Carrier Detect, Off Hook, Terminal  
Ready, and Test Mode  
Speaker  
1-inch speaker for call progress monitoring  
Manual Controls  
Environmental  
Power switch, speaker volume control, four LCD control buttons  
Temperature range 0°–50°C (32°–120°F) ambient under closed  
conditions; humidity range 20–90% (non-condensing)  
Storage Temperature  
Power Requirement  
Power Consumption  
Dimensions  
-10° to +85°C (14°–185°F)  
120 VAC, 60 Hz, 16 W; 230V/50 Hz optional (international)  
12 W @ 0.1 A typical  
15.8 cm wide × 22.9 cm long × 3.6 cm high (6.2" × 9.0" × 1.4")  
Weight  
0.9 kg (2 lb.)  
10 years  
Limited Warranty  
Intelligent Features  
Plug and Play; AT command compatible; autodial, redial, repeat dial;  
pulse or tone dial; dial pauses; auto answer; Caller ID; remote  
configuration; adaptive line probing; automatic symbol and carrier  
frequency during start-up, retrain, and rate renegotiation; DTMF  
detection; call status display, auto-parity and data rate selection;  
keyboard- and front panel-controlled modem options; monitor and LCD  
displays for modem options; non-volatile memory; storage of up to four  
command strings or telephone numbers of up to 40 characters each  
52  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix C - Warranty, Service, and Technical Support  
Appendix C - Warranty, Service, and  
Technical Support  
Multi-Tech Systems, Inc. Warranty & Repairs  
Policies  
Warranty  
Multi-Tech Systems, Inc., (hereafter “MTS”) warrants that its products will be free from defects in material or  
workmanship for a period of two, five, or ten years (depending on model) from date of purchase, or if proof of  
purchase is not provided, two, five, or ten years (depending on model) from date of shipment.  
MTS MAKES NO OTHER WARRANTY, EXPRESS OR IMPLIED, AND ALL IMPLIED WARRANTIES OF  
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED.  
This warranty does not apply to any products which have been damaged by lightning storms, water, or power  
surges or which have been neglected, altered, abused, used for a purpose other than the one for which they  
were manufactured, repaired by Customer or any party without MTS’s written authorization, or used in any  
manner inconsistent with MTS’s instructions.  
MTS’s entire obligation under this warranty shall be limited (at MTS’s option) to repair or replacement of any  
products which prove to be defective within the warranty period or, at MTS’s option, issuance of a refund of  
the purchase price. Defective products must be returned by Customer to MTS’s factory – transportation  
prepaid.  
MTS WILL NOT BE LIABLE FOR CONSEQUENTIAL DAMAGES, AND UNDER NO CIRCUMSTANCES  
WILL ITS LIABILITY EXCEED THE PRICE FOR DEFECTIVE PRODUCTS.  
Repair Procedures for U.S. and Canadian Customers  
In the event that service is required, products may be shipped, freight prepaid, to our Mounds View,  
Minnesota factory:  
Multi-Tech Systems, Inc.  
2205 Woodale Drive  
Mounds View, MN 55112  
Attn: Repairs, Serial # __________  
A Returned Materials Authorization (RMA) is not required. Return shipping charges (surface) will be paid by  
MTS.  
Please include, inside the shipping box, a description of the problem, a return shipping address (must have a  
street address, not P.O. Box), your telephone number, and, if the product is out of warranty, a check or  
purchase order for repair charges.  
Extended two-year overnight replacement service agreements are available for selected products. Please call  
MTS at (888) 288-5470, extension 5308 or visit our Web site at http://www.multitech.com/programs/orc/ for  
details on rates and coverages.  
Please direct your questions regarding technical matters, product configuration, verification that the product is  
defective, etc. to our Technical Support department at (800) 972-2439, or email [email protected].  
Please direct your questions regarding repair expediting, receiving, shipping, billing, etc. to our Repair  
Accounting department at (800) 328-9717 or (763) 717-5631, or email [email protected].  
Repairs for damages caused by lightning storms, power surges, incorrect installation, physical abuse, or user  
caused damages are billed on a time-plus-materials basis.  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
53  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix C - Warranty, Service, and Technical Support  
Repair Procedures for International Customers (Outside U.S.A. and  
Canada)  
Your original point of purchase Reseller may offer the quickest and most economical repair option for your  
Multi-Tech product. You may also contact any Multi-Tech sales office for information about the nearest  
distributor or other repair service for your Multi-Tech product.  
http://www.multitech.com/COMPANY/offices/DEFAULT.ASP  
In the event that factory service is required, products may be shipped, freight prepaid to our Mounds View,  
Minnesota factory. Recommended international shipment methods are via Federal Express, UPS or DHL  
courier services, or by airmail parcel post; shipments made by any other method will be refused. A Returned  
Materials Authorization (RMA) is required for products shipped from outside the U.S.A. and Canada. Please  
contact us for return authorization and shipping instructions on any International shipments to the U.S.A.  
Please include, inside the shipping box, a description of the problem, a return shipping address (must have  
street address, not P.O. Box), your telephone number, and if the product is out of warranty, a check drawn on  
a U.S. bank or your company’s purchase order for repair charges. Repaired units shall be shipped freight  
collect, unless other arrangements are made in advance.  
Please direct your questions regarding technical matters, product configuration, verification that the product is  
defective, etc., to our Technical Support department nearest you or email [email protected]. When  
calling the U.S., please direct your questions regarding repair expediting, receiving, shipping, billing, etc., to  
our Repair Accounting department at  
+(763) 717-5631 in the U.S.A., or email [email protected].  
Repairs for damages caused by lightning storms, water, power surges, incorrect installation, physical abuse,  
or user-caused damages are billed on a time-plus-materials basis.  
Repair Procedures for International Distributors  
Procedures for International Distributors of Multi-Tech products are on the distributor Web site.  
Copyright ã Multi-Tech Systems, Inc. 2001  
10-Sep-01  
Online Warranty Registration  
If you have access to the World Wide Web, you can register your Multi-Tech product online at http://  
Service  
U.S. and Canadian Customers  
In the event that service is required, products may be shipped, freight prepaid, to our Mounds View,  
Minnesota, factory:  
Multi-Tech Systems, Inc.  
2205 Woodale Drive  
Mounds View, MN 55112  
Attn: Repairs, Serial #______  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
54  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix C - Warranty, Service, and Technical Support  
A Returned Materials Authorization (RMA) is not required. Return shipping charges (surface) will be paid by  
MTS. Please include inside the shipping box a description of the problem, a return shipping address (must  
have street address, not P.O. Box), a telephone number, and if the product is out of warranty, a check or  
purchase order for repair charges.  
Extended two-year overnight replacement agreements are available for selected products. Please call MTS  
details on rates and coverages.  
Please direct your questions regarding technical matters, product configuration, verification that the product is  
defective, etc., to our Technical Support department at 800 972-2439 or e-mail [email protected].  
Please direct your questions regarding repair expediting, receiving, shipping, billing, etc., to our Repair  
Accounting department at 800 328-9717 or +763 785-3500, or e-mail [email protected].  
Repairs for damages caused by lightning storms, water, power surges, incorrect installation, physical abuse,  
or user-caused damages are billed on a time-plus-materials basis.  
International Customers (outside U.S.A. and Canada)  
Your original point of purchase reseller may offer the quickest and most economical repair option for your  
Multi-Tech product. You may also contact any Multi-Tech sales office for information about the nearest  
DEFAULT.ASP.  
In the event that factory service is required, products may be shipped, freight prepaid, to our Mounds View,  
Minnesota, factory. Recommended international shipment methods are via Federal Express, UPS or DHL  
courier services, or by airmail parcel post; shipments made by any other method will be refused. A Returned  
Materials Authorization (RMA) is required for products shipped from outside the U.S.A. and Canada. Please  
contact us for return authorization and shipping instructions on any international shipments to the U.S.A.  
Please include, inside the shipping box, a description of the problem, a return shipping address (must have  
street address, not P.O. Box), your telephone number, and if the product is out of warranty, a check drawn on  
a U.S. bank or your company’s purchase order for repair charges. Repaired units will be shipped freight  
collect, unless other arrangements are made in advance.  
International Distributors  
Procedures for international distributors of Multi-Tech products are on the Distributor Web site at http://  
Replacement Parts  
SupplyNet, Inc, can supply you with replacement power supplies, cables and connectors for selected Multi-  
Tech products. You can place an order with SupplyNet via mail, phone, fax, or the Internet at the following  
addresses:  
Mail: SupplyNet, Inc.  
614 Corporate Way  
Valley Cottage, NY 10989  
Phone: 800-826-0279  
Fax:  
914-267-2420  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
55  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix C - Warranty, Service, and Technical Support  
Technical Support  
Multi-Tech Systems has an excellent staff of technical support personnel available to help you get the most  
out of your Multi-Tech product. If you have any questions about the operation of this unit, please call 800 972-  
2439 (USA and Canada) or 763 785-3500 (international and local). Please have modem information avail-  
able. You can also contact Technical Support by e-mail at the following addresses:  
Country  
France:  
India:  
U.K.:  
U.S.A., Canada  
Rest of world:  
Email  
Telephone  
+(33) 1-64 61 09 81  
+91 (124) 6340778  
+(44) 118 959 7774  
800 972-2439  
+763 717-5863  
Please note the status of the modem before contacting Technical Support. Status information can include the  
state of the LED indicators, screen messages, diagnostic test results, problems with a specific application,  
etc.  
Internet Sites  
Multi-Tech is a commercial provider on the Internet. Multi-Tech has a Web site at  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
56  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix D - Upgrading the Firmware  
Appendix D - Upgrading the  
Firmware  
Introduction  
Your modem is controlled by semi-permanent software, called firmware, which is stored in flash memory.  
Firmware is nonvolatile; that is, it remains stored in memory when the modem is turned off. However, it can  
be changed by either the manufacturer or the user as bugs are fixed or new features are added.  
Since the firmware in your modem is stored in flash memory, you can upgrade it yourself in a few minutes  
by using the following procedures.  
Upgrade Overview  
The upgrade procedure consists of the following steps, which are described in greater detail in the  
following sections.  
1. Identify the model number and firmware version of your modem.  
2. Identify the current version of the firmware at the Multi-Tech Web site. If your modem already has  
the current firmware, there is no need to update it.  
3. Download the upgrade file for your modem.  
4. Extract the firmware .HEX file and the appropriate flash upgrade program from the file you  
downloaded.  
5. Document and clear your stored parameters.  
6. Upgrade the modem’s firmware using the .HEX file and the flash upgrade program.  
7. Restore your parameters.  
Step 1 - Identify the Modem Firmware  
You must know the model number and firmware version of your Multi-Tech modem to know whether or not  
you should update it.  
1. Run your favorite terminal program. If you are using Windows, you can use HyperTerminal.  
2. In the program’s terminal window, type AT&F. Even if you cannot see the AT&F command on your  
screen, be sure to type it completely, and then press Enter. If the modem does not respond with OK,  
repeat the AT&F command.  
3. Now type ATI3, press Enter and record your results. The firmware version should appear first in the  
response, which should look similar to the following:  
ACF3_V1.702a_V90_P21_FSH  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
57  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix D - Upgrading the Firmware  
Step 2 - Identify the Current Firmware  
Version  
Identify the current version of the firmware at the Multi-Tech Web site. If your modem already has the  
current firmware, there is no need to update it.  
1. Using your favorite Web browser, go to http://www.multitech.com/support/MultiModemII/  
2. Scroll down the table to your modem model number.  
3. Look at the firmware version number for your modem.  
4. If the firmware version number matches the firmware version number found in “Step 1: Identify the  
Modem Firmware,” your modem has the current firmware version, and does not need to be updated.  
5. If the firmware version number is greater than the firmware version number found in “Step 1: Identify  
the Modem Firmware,” your modem has an older firmware version. Continue with “Step 3: Download  
the Upgrade File.”  
Warning: The first digit of the new firmware must match the first digit of the old firmware, or the modem  
may not work properly; e.g., if your current firmware version is 4.16, replace it only with 4.xx firmware, not  
6.xx firmware.  
Step 3 - Download the Upgrade File  
1.  
2.  
3.  
procedure in “Step 2: Identify the Current Firmware.”  
Download the upgrade file for your modem by clicking its name, and save the file in a temporary  
folder on your hard disk.  
In the same section of the Web page, click the Flash Wizard utility for your operating system to  
download it, and save it in the same folder.  
Step 4 - Extract the Upgrade Files  
1.  
Install the Flash Wizard utility by double-clicking the file name in Windows Explorer.  
2.  
Extract the upgrade files by double-clicking the file name. The extracted files include a .HEX file,  
which contains the upgrade data, and a Readme file.  
3.  
Copy the upgrade .HEX file into the Flash Wizard folder, which, in a default installation, is at  
C:\Program Files\MultiTech Systems\Flash Wizard\.  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
58  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix D - Upgrading the Firmware  
Step 5 - Clear Your Stored Paramenters  
Before you flash your modem, you should record the parameters that are currently stored in it, so you  
can reprogram it after flashing. After you have recorded them, send the AT&F command to the the  
modem to clear the stored parameters.  
1.  
Run your favorite terminal program. If you are using Windows 95, Windows 98, Windows NT, or  
Windows 2000, you can use HyperTerminal.  
2.  
In the program’s terminal window, type AT&V and press Enter to list your modem’s current  
parameters.  
3.  
4.  
Record your parameters by saving the screens and sending them to your printer.  
Type AT&F and press Enter to clear your stored parameters and reset your modem to factory  
default.  
5.  
Close the terminal program.  
Step 6 - Upgrade the Modem’s Firmware  
Before you begin the following procedure, read the README.TXT file extracted from the upgrade archive  
file. Note the file name for the boot code (e.g., F35ALOAD.S37) and the file name for the new firmware  
(e.g., BKQG300G.HEX).  
WARNING: Never install an older version of firmware over a newer version. Doing this WILL DESTROY  
THE FLASH PROM! If the flash PROM is destroyed, the modem must be sent in for repair.  
1. Run Flash Wizard by double-clicking its icon or file name, or by selecting it from the Start menu. The  
Identifying Devices dialog box is displayed as Flash Wizard locates and identifies the devices  
connected to your system.  
Note: If the message ERROR: No valid devices detected is displayed, verify that the modem is  
turned on and that all cables are correctly and securely attached.  
2. Click the modem to be upgraded, and then click Next to proceed.  
3. Select the port to be upgraded from the Port list, select the appropriate .HEX file from the Hex File  
list, and then click Next to continue.  
Note: Do not use FLASHLDR.HEX. This file is used internally by Flash Wizard.  
4. The Progress dialog box appears, showing a status bar that indicates the progress of the upgrade.  
Caution: Any disruption of the program during this stage of the upgrade can cause your modem to  
become inoperable. Wait for the Next button to become active before proceeding.  
5. When the flash upgrade is complete, the message Programming Complete appears. Click Next to  
continue.  
6. The Results dialog box appears next. Click Finish to exit Flash Wizard.  
Step 7 - Restore Your Parameters  
Your modem has been updated. You can now open your terminal program to reprogram your modem  
parameters or to confirm the update by typing ATI3 in the terminal window and pressing Enter.  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
59  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix E - Installing a Modem Under Linux  
Appendix E - Installing a Modem  
Under Linux  
Introduction  
This appendix explains how to install a modem on a computer operating under the Red Hat Linux 6.2  
operating system. Other versions of Red Hat and other Linux operating systems should be similar. Briefly,  
in Linux, you do not need drivers for most standard external modems and most internal ISA bus modems.  
Programs in Linux commonly call upon the port, rather than the modem.  
Standard Linux Serial Port Definitions  
PC port  
Com1  
Com2  
Com3  
Com4  
Linux port  
ttyS0  
ttyS1  
ttyS2  
ttyS3  
Installation  
Connect the external modem to an available serial port.  
Setup  
This section describes how to make sure Linux can talk to the modem and be able to dial up to the  
Internet. Linux can use different programs and desktops depending on who made the Linux operating  
system and what version it is. The following procedures use the most commonly installed components of  
Red Hat 6.2. More information can be found in your Linux OS owner’s manual.  
Using the Terminal Program Minicom to Verify Operation  
1.  
2.  
3.  
4.  
5.  
At the command prompt, type minicom –s and press Enter.  
Select Serial port setup and press Enter.  
From Serial port setup, use the A key to access Serial Device, and then press Enter.  
Press ESC.  
You are now in the Minicom terminal. Type AT and press Enter. The screen should display OK to  
verify the operation. Alternately, dial a phone number to verify line operation  
6.  
7.  
To leave Minicom, press CTRL + A, and then press Z.  
On the help menu, press X to exit.  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
60  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix E - Installing a Modem Under Linux  
Using the Modem to Call the Internet  
Linux allows different graphic user interfaces (GUI). In the following steps, we’ll use the Gnome Desktop  
GUI and assume that the Internet Service Provider (ISP) you are calling assigns you the Domain Name  
Service (DNS) and Internet Protocol (IP) addresses. For more information on DNS or IP, see the Linux  
OS owner’s manual or contact your ISP.  
1. On the Task Bar at the bottom of the screen, select the Gnome Footprint.  
2. Select Internet from the menu.  
3. Select Dialup Configuration Tool.  
4. Select Add, and then click Next.  
5. Enter the connection name and phone number, and then click Next.  
6. Enter your user name and password, and then click Next.  
7. Select Normal ISP if your ISP is not listed, and then click Next.  
8. Click Finish.  
Calling the ISP  
1. On the Task Bar at the bottom of the screen, select the Gnome Footprint.  
2. Select Internet from the menu.  
3. Select RH PPP Dialer.  
4. Select the connection name you entered in step 5 of the previous section.  
5. Click OK.  
Answering Calls  
To use the system for answering calls, Linux requires other programs to be installed, such as Mgetty,  
Mgetty+Sendfax, and others, depending on your requirements. Each vendor of Linux has more than  
adequate information on installing these programs.  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
61  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix F - Pin Descriptions  
Appendix F - Pin Descriptions  
RS-232 Pin Descriptions  
Label Pin  
I/O type  
Signal name/description  
CGND  
TD  
1
2
GND  
CGND is tied common to GND on the modem’s PCB.  
Transmitted Data The DTE uses the TD line to send  
data to the modem for transmission over the telephone  
line or to transmit commands to the modem.  
RD  
3
Received Data The modem uses the RD line to send  
data received from the telephone line to the DTE and to  
send modem responses to the DTE.  
RTS  
CTS  
4
5
Request to Send The RTS signal is used for hardware  
flow control.  
Clear To Send CTS is controlled by the modem to  
indicate whether or not the modem is ready to transmit  
data. CTS high indicates to the DTE that signals  
presented on TD will be transmitted to the telephone  
line. CTS low indicates to the DTE that it should not  
transfer data across the interface on TD.  
DSR  
6
Out  
Data Set Ready DSR indicates modem status to the  
DTE. DSR low indicates that the DTE is to disregard all  
signals appearing on the interchange circuits except  
Ring Indicator (RI). It reflects the status of the local data  
set, and does not indicate an actual link with any remote  
data equipment.  
GND  
7
8
GND  
CD  
Ground.  
CFLO  
Carrier Detect The modem uses the CD line to signal  
to the DTE that a carrier has been detected.  
+12V  
9
A positive voltage output from the modem used for tests  
or for strapping signals high if needed.  
10  
11  
12  
13  
14  
15  
NC  
NC  
NC  
NC  
NC  
TCLK  
TC  
Transmit Clock Output from modem, used in  
synchronous mode.  
16  
17  
NC  
RCLK  
V54-2  
RC  
AL  
Receive Clock Output from modem, used in  
synchronous mode.  
18  
19  
20  
Analog Loop Input to modem to enable analog loop test.  
NC  
DTR  
DTR  
Data Terminal Ready Input to modem from DTE to  
control answering and disconnection of modem.  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
62  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix F - Pin Descriptions  
Label Pin  
I/O type  
Signal name/description  
RDL  
RI  
21  
22  
RDL  
Remote Digital Loop Input to modem to enable RDL test.  
Ring Indicator RI output high indicates the presence of  
a ring signal on the telephone line.  
23  
24  
NC  
XCLK  
TM  
XCLK  
TM  
External Clock Input to modem used in special  
synchronous applications.  
25  
Test Mode Output from modem to indicate modem is in  
one of the test modes.  
RS-232 Cable Pinouts  
DTE DB-25  
connector  
DCE DB-25  
connector  
TD 2  
RD 3  
2 TD  
3 RD  
RTS 4  
CTS 5  
DSR 6  
GND 7  
CD 8  
4 RTS  
5 CTS  
6 DSR  
7 GND  
8 CD  
DTR 20  
RI 22  
20 DTR  
22 RI  
Fig. F-1. 25-pin to 25-pin RS-232 cable.  
DTE DB-9  
connector  
DCE DB-25  
connector  
TD 3  
RD 2  
2 TD  
3 RD  
RTS 7  
CTS 8  
DSR 6  
GND 5  
CD 1  
4 RTS  
5 CTS  
6 DSR  
7 GND  
8 CD  
DTR  
4
20 DTR  
22 RI  
RI 9  
Fig. F-2. 9-pin to 25-pin RS-232 cable.  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
63  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix F - Pin Descriptions  
DTE Mini-DIN  
8-pin connector  
DCE DB-25  
connector  
2 TD  
3 RD  
4 RTS  
5 CTS  
6 DSR  
7 GND  
8 CD  
SG, RxD+  
RxD-  
6
3
7
4
8
TxD-  
5
1
2
HSKi (CTS)  
20 DTR  
22 RI  
HSKo (RTS)  
Fig. F-3. Macintosh cable.  
Leased Line Pinouts  
2345  
2
3
4
5
Red (Tip)  
Green (Ring)  
RJ-11  
Modular Plug  
To Terminal  
Block Screws  
Fig. F-4. Two-wire leased line cable.  
2345  
Red  
3
Transmit Pair  
4
Green  
Yellow  
2
5
Receive Pair  
Black  
RJ-11  
Modular Plug  
To Terminal  
Block Screws  
Fig. F-5. Four-wire leased line cable.  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
64  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Index  
CTS (Clear to Send)  
Line Signal Quality menu 26  
line type menu options 16  
Linux 60–61  
menu options 18, 24, 25  
Index  
liquid crystal display (LCD) 13–28  
local analog loopback test 27  
local digital loopback test 27  
loopback tests 20, 27–28  
lost data 45  
D
A
data compression 45  
Diagnostic Options Trunk 20  
diagnostics  
advanced menu options 25  
Advanced Options Trunk 18  
analog loopback test 27  
AT commands 5  
#CBN= 26, 39  
#CBP= 26, 27, 39  
#CID= 28  
#DB 26, 27, 39  
%Q 26  
&C 25  
&D 25, 45  
&Q 45  
&R 24, 25  
&W 34  
&Z= 27  
DS= 27  
O 34  
S= 26  
line signal quality 26  
menu options 20, 27  
dial backup 25, 31–32  
dial-back timer 18, 25, 31  
dialing menu options 16  
digital loopback tests 27–28  
DOC regulations 48–50  
driver installation 9  
DTR (Data Terminal Ready)  
AT command 45  
menu options 18, 25  
DTR Control command 45  
DTR dialing 16  
M
Macintosh cable pinouts 64  
menu system 13–28  
MNP 5 data compression 45  
modem driver installation 9  
modem reset  
menu option 16  
Monitor Options menu 26–28  
Multi-Tech Internet sites 56  
P
phone connection 7  
phone number memory options  
21, 27–28  
Phone Number Memory Options  
Trunk 21  
E
error correction  
S? 26  
autoanswer 45  
menu options 16  
pin descriptions 62–64  
protocols 45  
F
B
fax communications 5  
FCC regulations 47–50  
firmware  
Basic Options Trunk 16  
R
C
upgrading 57–59  
flash memory 57  
Flash Wizard upgrade utility 58  
flow control 45  
menu options 16  
front panel 12, 41  
registering your product 54  
regulatory compliance 47–50  
remote configuration 33–34  
escape character 34  
menu options 20, 27  
remote digital loopback test 27  
removing a modem from Windows  
9
reset menu option 16  
resetting the modem 16, 24  
restore timer 31  
result codes 24, 43  
RS-232 interface  
cable pinouts 63–64  
Call Waiting 44  
Callback Enable/Disable command  
39  
callback security 27, 35–39  
Callback Assignments Form 40  
calling procedure 38–39  
commands 39  
G
garbage characters 46  
direct connections 38, 39  
enabling and disabling  
26, 27, 39  
I
menu options 18, 26–28  
on UNIX systems 25  
passwords 26, 27, 39  
setup procedures 35–39  
storing a callback number 26, 39  
Caller ID 45  
menu options 21, 28  
Canadian regulations 48–50  
CD (Carrier Detect)  
menu options 18, 25  
COMM.DRV 45  
command mode 16  
communication programs 42  
compression, data 45  
connecting the modem 7  
Country Codes List 10  
indicators 12, 41  
cable pinouts 63  
connection 7  
menu options 18, 25  
initialization strings 42  
installing the modem driver 9  
Internet addresses 56  
S
L
S-registers  
menu options 26–28  
S00 28  
S13 34  
S15 31, 32  
S17 25, 31, 32  
safety 6  
serial cable 42  
serial port 42, 43, 45  
LCD (liquid crystal display) 13–28  
leased line  
cable pinouts 64  
connections 8  
menu options 18  
operation 29–32  
LED indicators 12, 41  
line connection 7  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
65  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Index  
servicing your modem 47  
Set Country Code Using AT  
Commands 11  
Windows NT 43  
Windows operating systems 9–11  
Set Country Code Using Global  
Wizard 11  
X
Set Country Code Using LCDs 10  
solving problems 41–46  
specifications, technical 51–52  
Status Trunk 15  
Xmodem 45  
Y
Store Callback Number command  
39  
Ymodem/G protocol 45  
Store Callback Password command  
39  
Z
Sync/Async Mode command 45  
sync/async modes 16, 24  
Zmodem protocol 45  
T
technical specifications 51–52  
telephone  
connecting a 7  
connection 7  
line 43  
number, dialing 27  
number, listing 27  
number, storing 27  
terminal mode 42  
testing the modem 8, 43  
loopback tests 27–28  
menu options 20  
self-test 41  
troubleshooting 41–46  
U
UARTs 45  
uninstalling a modem from Windows  
9
UNIX commands 25  
upgrading the modem 57–59  
V
V.25bis 16, 24  
V.54 tests 27  
W
warranty 47  
Windows 3.1 42, 45  
Windows 9x 43  
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)  
66  
Download from Www.Somanuals.com. All Manuals Search And Download.  

MTD Cultivator YM CULTIVATOR User Manual
MTD Lawn Mower 121 942 002 User Manual
MTD Snow Blower E762F User Manual
Nikon Camera Lens 185mm f 18 User Manual
Nortel Networks Switch 8692SF User Manual
Nostalgia Electrics Kitchen Grill RHD 400 User Manual
Omega Vehicle Security Welding System CCT 05 Series User Manual
Packard Bell Computer Drive DVX 460 User Manual
Parkside Engraver PGG 15 A1 User Manual
Patton electronic Network Card 1089 I User Manual