MT5600BA/BL Series
MT5600BA–V.92
MT5600BA–V.90
MT5600BL–V.90
Data/Fax Modem
User Guide
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Contents
Table of Contents
Chapter 1 - Description and Features......................................................................... 5
Product Description.............................................................................................. 5
Features............................................................................................................... 5
Modem Configuration ......................................................................................... 12
Remote Configuration Options..................................................................... 27
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Contents
The Modem Disconnects While Online .............................................................. 44
File Transfer Is Slower Than It Should Be.......................................................... 45
Data Is Being Lost.............................................................................................. 45
The Modem Doesn’t Work with Caller ID ........................................................... 46
Canadian Limitations Notice............................................................................... 48
New Zealand Telecom Warning Notice .............................................................. 49
Appendix B - Technical Specifications...................................................................... 51
Service............................................................................................................... 54
Internet Sites...................................................................................................... 56
Step 2 - Identify the Current Firmware Version .................................................. 58
Standard Linux Serial Port Definitions................................................................ 60
Installation.......................................................................................................... 60
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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.
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.
AT Commands for this product are published in a separate document and included on the
MT5600BA/BL System CD that accompanies your modem.
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.
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Chapter 1 - Description and Features
•
•
•
•
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.
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Chapter 2 - Installation
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.
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.
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.
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.
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Chapter 2 - Installation
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.
For voice-only calls, plug a telephone into the modem’s PHONE jack.
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.
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.
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Chapter 2 - Installation
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.
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.
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.
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.
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Chapter 2 - Installation
The MT5600BA-V.92 modem is a global modem - it can be used all over the world.
Different countries have different requirements for how modems must function. Therefore, before you can
use your modem, you must configure it to match the defaults of the country in which you are using it. You
can use one of two configuration methods:
· Using the LCD Panel to Set Your Country Code
· Using the Global Wizard to Set Your Country Code
· Using AT Commands to Set Your Country Code
1. Start at the Status LCD and use the down arrow to
move down the menu tree to the Country Select LCD.
Status
2. Use the right arrow to move from the Country Select
LCD, across the Country Setting Options LCD, to the
Current Setting LCD.
Basic Options
Advanced
Options
3. If the current setting shown is not the one for your
country, arrow across to the Country Profile LCD. The
question mark represents the question “Is this the country
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 Country Codes on the back of
this card.
Remote Config
Diagnostics
4.When you reach the country code you want, press
Enter. After pressing Enter, you will see the message
Option Set.
Phone Number
Memory
5. After setting the country 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
Country Setting
Options
Country Profile
B5?
Country Select
Current Setting
Country Profile
99?
Country Profile
01?
Country Profile
02?
Country Profile
03?
Country Profile
04?
Country Profile
00?
Country Profile
09?
Country Profile
6C?
Country Profile
9F?
·
·
B5 – All countries use the Country Code B5 except for the following codes.
99 – The following countries use the Country Code 99:
Hong Kong
Hungary
Israel,
Poland
Korea (Democratic People’s Republic of) Slovenia
India
Indonesia
Korea (Republic of)
Philippines
Vietnam
·
·
·
·
·
·
·
·
01 – Argentina
02 – Taiwan
03 – New Zealand
04 – Singapore
00 – Japan
09 – Australia
6C – Malaysia
9F – South Africa
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Chapter 2 - Installation
The Global Wizard configuration utility is recommended for computers running in Windows. The
Wizard can configure your modem for a specific country with just a few mouse clicks.
1. Insert the MultiModemII system CD into the CD-ROM drive. The Autorun dialog box
appears.
2. Click Initial Setup and Country 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 in which the modem will be used. Click Next.
5. Review your choice of country. 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.
If you are comfortable using AT commands, you use them to configure your modem. You must
enter these commands in your communication program's terminal window (a program such as
PhoneTools). Execute the following AT commands:
Type AT+GCI=nn (nn stands for the country code). Press Enter.
OK displays.
Type AT&F&W to save your country code. Press Enter.
OK displays.
Type ATI5 to verify your country code has been configured.
The country code is then displayed in hexadecimal format as in this example:
Country
Hexadecimal Code
Euro/NAM
B5
Note: PhoneTools may or may not be included on the MT5600BA/BL system 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 MT5600BA/BL system CD into your CD-ROM drive. Allow Autorun to bring up the
introductory screen.
2. Click on the PhoneTools icon and choose the appropriate country/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.
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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.
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
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.
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Chapter 3 - Using the Front Panel
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.
To select most configuration options, simply display the option in the LCD, and then press the Enter but-
ton 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 á and â buttons. To go to the next character position, press
ß
the à button. To backspace, press the à button before selecting a character. To exit without saving,
press the à button several times. To save a character string, press the Enter button.
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 á
and â buttons to move between trunks.
ß
Limbs are subdivisions of trunks. Use the à button to move from a trunk onto its first limb, and the á
and â buttons to move between limbs on the trunk.
ß
Branches are subdivisions of limbs. Use the à button to move from a limb onto its first branch, and the
á
and â buttons to move between branches on the limb.
ß
Twigs are status screens and options that are accessible only from branches. Use the à button to move
from a branch to its first status screen or option; then press the á and â buttons to move between
ß
options, and press the Enter button to select an option.
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Chapter 3 - Using the Front Panel
Trunks
Limbs
Branches
Twigs
Manual Orig.?
Status =
Idle
Manual Answer?
,
Status =
,
,
Ent
Ent
,
,
,
( automatic selection )
Status =
Online
49333,Async,Lapm
,
Disconnect?
,
Ent
Ent
,
,
Line Type
Options
Current Settings=
PSTN?
,
Basic Options
Online Options
Dialing Options
,
,
,
,
,
,
,
,
,
,
,
PSTN
Error Correction
Options
Current Settings=
&E1
EC on? (&E2)
,
Ent
,
,
DTR normal?
Advanced Options
,
Remote Config.
DTR Options
Current Settings=
&D2
Ent
,
,
,
,
,
,
,
,
,
,
,
,
,
(&D2)
,
,
,
Password
Current Settings=
&C1 &C4
Diagnostic
Options
Carrier Detect
Options
CD forced on?
(&C0)
Ent
,
,
Current Settings=
Enabled
Remote
Config.
Phone Number
Mem. Ops.
Enable / Disable
R,C,
Enable RC?
,
,
,
Ent
,
,
,
,
,
Remote Config.
Password
Enter Password
A
,
Diagnostic
Options
Diagnostics
,
Test in Progress
Initiate AL?
,
Analog Loopback
,
Ent
,
,
Terminate RDL?
Phone #1?
Initiate DL?
,
Digital Loopback
,
Ent
,
,
Ent
,
Phone Number
Memory
List Phone
Numbers
Phone #0?
Phone Number
Mem. Ops.
,
,
,
,
,
,
Enter Phone
Numbers
Enter Phone #0?
,
Enter Phone #1?
,
Ent
Ent
Ent
,
,
,
Enable FCID?
(#CID1)
Caller I.D.
Caller I.D.
Options
Current Setting
#CID0
,
,
,
,
,
Country Profile
B5
Country Select
Current Setting =
02
Country Profile
XX?
Country Setting
Options
Ent
,
,
,
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Chapter 3 - Using the Front Panel
The Status Trunk shows the current operating status of the modem. Limb changes are automatic, but
certain options can be accessed by pressing the à button. Note that when the modem is online, pressing
the à button shows the connect status, including the data speed, connection type, and compression
type.
Limbs
Twigs
Manual selection
Automatic selection
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Chapter 3 - Using the Front Panel
Use the Basic Options Trunk to configure the modem’s basic operating conditions. When entering a num-
ber, use the á and â buttons to scroll through a list of digits and characters. To go to the next position,
ß
press the à button. To back up or to exit without dialing, press the à button several times.
Limbs
Branches
Twigs
Continued on next page
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Chapter 3 - Using the Front Panel
Limbs
Branches
Twigs
Continued from previous page
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Chapter 3 - Using the Front Panel
Use the Advanced Options Trunk to configure RS-232, dial backup, and callback security options. When
entering a number or password, use the á and â buttons to select a character or digit. To go to the
ß
next position, press the à button. To backspace or to exit, press the à button several times.
Limbs
Branches
Twigs
Continued on next page
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Chapter 3 - Using the Front Panel
Limbs
Branches
Twigs
Continued from previous page
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Chapter 3 - Using the Front Panel
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 á and â buttons to scroll through
ß
the alphabet. To go to the next character position, press the à button. To backspace or to exit, press the
à button several times.
Limb
Branches
Twigs
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
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Chapter 3 - Using the Front Panel
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 á and
ß
â buttons to scroll through the available digits and dialing commands. To go to the next position, press
the à button. To backspace or to exit, press the à button several times.
Limb
Branches
Twigs
Use the Caller ID Options Trunk to enable or disable Caller ID operation.
Limb
Branches
Twigs
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Chapter 3 - Using the Front Panel
This section describes important LCD screens and options. Many, but by no means all, of the options
have AT command equivalents.
Status screens display the current status of the modem. Though limb changes are automatic, certain
options can be selected by pressing the à 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 à 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 con-
nected 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 tempo-
rarily place the modem in answer mode for back-to-back testing.
BUSY OUT MODEM? Takes the modem out of service by put-
ting 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 à, Enter.
STATUS = ONLINE. The modem is connected to another modem. Two options are
available from this screen by pressing the à 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 à 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.
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Chapter 3 - Using the Front Panel
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 à 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 à 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 à 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 à 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 à 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 á and â buttons. To go to the next position,
ß
press the à button. To back up or to exit without dialing, press
the à button several times. To dial the number, press the Enter
button. Same as the D command.
DTR DIALING. Use the à 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.
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Chapter 3 - Using the Front Panel
COMMAND MODE OPTIONS. The following screens are used to configure result
code responses.
ENABLE/DISABLE RESPONSE. Use the à 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 à and Enter buttons
to select verbose or terse result codes. Same as the V0 and V1
commands.
ENABLE/DISABLE CMD MODE. Use the à and Enter buttons
to enable or disable the modem’s ability to accept AT commands
.
SYNC/ASYNC OPTIONS. Use the à 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 à 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 à and Enter buttons to change the modem’s
serial port and data transmission speeds.
SERIAL BAUD RATE. Use the à 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 à 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.
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Chapter 3 - Using the Front Panel
RS232 OPTIONS. The following screens are used to configure the RS-232 interface.
DTR OPTIONS. Use the à 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 â 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 à 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 à 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 á
ß
and â buttons. To go to the next position, press the à button.
To back up or to exit without saving, press the à 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 â button. To go to the previous screen, press the ß
button. To go to the next screen, press the à 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.
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Chapter 3 - Using the Front Panel
CALLBACK SECURITY. Use the à 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 á and â buttons. To go to the next position,
ß
press the à button. To back up or to exit without saving, press
the à 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 â button. To go to the previous screen, press the ß
button. To go to the next screen, press the à button.
S-REGISTER OPTIONS. Use the à, â, 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 à, â, á , and Enter
ß
buttons to select the number of the S-register whose value you
want displayed. To scroll through a list of digits, press the á
ß
and â buttons. To go to the next position, press the à button.
To back up or to exit without saving, press the à button several
times. To display the value, press the Enter button. Same as
the Sr? command.
SET S-REGISTER. Use the à, â, á , and Enter buttons to
ß
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 á and â buttons. To go to the next posi-
ß
tion, press the à button. To back up or to exit without saving,
press the à button several times. Same as the Sr=n com-
mand.
MONITOR OPTIONS. Use the à, â, and Enter buttons to display line quality and
the line signal-to-noise ratio.
LINE QUALITY. Use the à 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 à and Enter buttons to
display the line signal-to-noise ratio in dB.
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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 à 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 á and â buttons. To go to the next position,
ß
press the à button. To back up or to exit without saving, press
the à button several times. To save the password, press the
Enter button.
Use the following screens to turn loopback tests on and off. For information about
how to apply these tests, see Appendix C, “Loopback Tests.”
ANALOG LOOPBACK. Press the à and Enter buttons to start
the analog loopback test. The TEST IN PROGRESS screen
appears. To stop the test, press the à and Enter buttons again.
DIGITAL LOOPBACK. Press the à and Enter buttons to start
the local digital loopback test. The TEST IN PROGRESS
screen appears. To stop the test, press the à and Enter but-
tons again. Same as the &T3 command.
REMOTE DIGITAL LOOPBACK. Press the à and Enter but-
tons to start the remote digital loopback test. The TEST IN
PROGRESS screen appears. To stop the test, press the à and
Enter buttons again. Same as the &T6 command.
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 â button. To go to the previous screen, press
the ß button. To go to the next screen, press the à button.
LIST PHONE NUMBERS. Press the à 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 á and â buttons. To go to the next position, press the à
ß
button. To back up or to exit without saving, press the à button
several times. To save the number, press the Enter button.
Same as the &Z= commands.
DIAL STORED NUMBERS. Press the à and Enter buttons to
dial a stored phone number. Same as the DS= commands.
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Chapter 3 - Using the Front Panel
Press the à 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, regis-
ter S0 must be set to 2 or more rings for the modem to receive Caller ID information.
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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.
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:
â, à, â, â, â, à. The CURRENT SETTING= screen appears.
4. If the CURRENT SETTING= screen shows ASYNC AT, press á and go to
ß
step 7. If it shows anything else, press à to go to the ASYNC, NORM? screen.
5. Press the Enter button to select normal asynchronous operation.
6. The OPTION SET screen appears. Press á to exit to the SYNC/ASYNC
ß
OPTIONS screen.
7. Press á , á , á , à, à, à, à. The 2 WIRE LEASE? ORIG screen
ß
ß
ß
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 à 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 á to exit to the ONLINE OPTIONS
ß
screen, or à 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.
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Chapter 4 - Leased Line Operation
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:
â, à, â, â, â, à, à, à, à. The SYNC, NORM? screen appears.
4. Press the Enter button to select normal synchronous operation.
5. The OPTION SET screen appears. Press á to exit to the SYNC/ASYNC
ß
OPTIONS screen.
6. Press á , á , á , à, à, à, à, à, à. The 4 WIRE LEASE? ORIG screen
ß
ß
ß
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 à 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 á to exit to the ONLINE OPTIONS
ß
screen, or à 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.
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Chapter 4 - Leased Line Operation
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.
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:
â, â, à, â, à, à, à. The ENTER NUMBER screen appears.
4. Press the á or â button several times to select the first digit in the dial backup
ß
telephone number.
5. Press the à button to go to the next digit in the number.
Note: To backspace or to cancel an entry, press à 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.
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Chapter 4 - Leased Line Operation
8. To change the default restore time, press â to go to the TIME TO RESTORE
(S15) screen, then press à, à. The ENTER TIME IN MINUTES screen ap-
pears.
9. Press the á or â button several times to select the first digit in the number.
ß
10. Press the à 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 â to go to the DIAL BACKUP
TIME (S17) screen, then press à, à. 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 â button. To go to the previous screen, press the ß
button. To go to the next screen, press the à button.
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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.
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.
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.
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 â â â à à â à to access the ENTER
PASSWORD screen.
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Chapter 5 - Remote Configuration
3. To change the password, press á or â to select the first character of the
ß
password, and then press à to go to the next character. Repeat until you have
entered the entire password.
4. To cancel the new password, press à 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.
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.
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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 in-
valid, 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 call-
back phone number. The caller must then append a hyphen to his password to establish the direct con-
nection.
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 impor-
tant 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.
Note: Autoanswer must be enabled (S0=1 or S0=2) for callback security to work.
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.
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Chapter 6 - Callback Security
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 â, â, à, â, â, à, à 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 â, â, à, â, â, à, à, à 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.
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.
1. Turn on the modem.
2. Starting at the STATUS screen, press the following buttons on the front panel:
â, â, à, â, â, à, â, à. 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 á or â button several times to select the first letter in the password.
ß
5. Press the à button to go to the next letter in the password.
Note: To backspace or to cancel an entry, press à 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.
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Chapter 6 - Callback Security
7. Press the Enter button again to go to the PASSWORD SETUP screen.
8. Press à, à 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 pass-
words have been entered.
Warning: There is no way to review an entry to confirm that it has been entered cor-
rectly. 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.
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 char-
acters: #, *, 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 pass-
word 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 dial-
ing strings have been entered.
1. Turn on the modem.
2. Starting at the STATUS screen, press the following buttons on the front panel:
â, â, à, â, â, à, â, â, à. 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 á or â button several times to select the first character. If a direct
ß
connection, without hangup and callback, is desired, the first character in the di-
aling string should be a hyphen (-).
5. Press the à button to go to the next character in the dialing string.
Note: To backspace or to cancel an entry, press à 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.
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Chapter 6 - Callback Security
8. Press à, à 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 cor-
rectly. 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.
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 re-
quest for a password.
3. Type the password for your modem, and then press ENTER. You have three at-
tempts 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 work-
ing 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.
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Chapter 6 - Callback Security
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 num-
ber 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 (-).
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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).
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.
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Chapter 7 - Troubleshooting
·
·
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.
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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).
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).
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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.
·
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.
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Chapter 7 - Troubleshooting
·
·
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.
·
·
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.
·
·
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.
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Chapter 7 - Troubleshooting
·
·
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.
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.
·
·
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.
·
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.
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Appendix A - Regulatory Compliance
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
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Appendix A - Regulatory Compliance
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.
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.
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Appendix A - Regulatory Compliance
The CE mark is affixed to this product to confirm compliance with the following European Community Di-
rectives:
·
·
·
Council Directive 89/336/EEC of 3 May 1989 on the approximation of the laws of Member States re-
lating 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.
Some dialing and answering defaults and restrictions may vary for international modems. Changing set-
tings may cause a modem to become non-compliant with national telecom requirements in specific coun-
tries. Also note that some software packages may have features or lack restrictions that may cause the
modem to become non-compliant.
1. The grant of a Telepermit for any item of terminal equipment indicates only that Telecom has accept-
ed that the item complies with minimum conditions for connection to its network. It indicates no en-
dorsement 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 diffi-
culties arise in such circumstances.
2. Immediately disconnect this equipment should it become physically damaged, and arrange for its dis-
posal or repair.
3. This modem shall not be used in any manner which could constitute a nuisance to other Telecom
customers.
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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 an-
other.
For automatically answered incoming calls:
The equipment shall be set to ensure that calls are answered between 3 and 30 seconds of re-
ceipt 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.
This modem must be used in conjunction with an approved surge protection device.
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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 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
Fax Compatibility
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)
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
Transmission Level -11 dBm (dial-up—varies depending on country setting), -10
dBm (leased-line)
51
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Appendix B - Technical Specifications
Frequency Stability
0.01%
Receiver Sensitivity -43 dBm under worst-case conditions
AGC Dynamic Range 43 dB
Interface
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-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.
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
Power switch, speaker volume control, four LCD control
buttons
Environmental
Temperature range 0°–50°C (32°–120°F) ambient under
closed conditions; humidity range 20–90% (non-condensing)
Storage Temperature -10° to +85°C (14°–185°F)
Power Requirement 120 VAC, 60 Hz, 16 W; 230V/50 Hz optional (international)
Power Consumption 12 W @ 0.1 A typical
Dimensions
Weight
15.8 cm wide × 22.9 cm long × 3.6 cm high (6.2" × 9.0" × 1.4")
0.9 kg (2 lb.)
10 years
Limited Warranty
52
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Appendix C - Warranty, Service, and Technical Support
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.
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.
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Appendix C - Warranty, Service, and Technical Support
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.
Procedures for International Distributors of Multi-Tech products are on the distributor Web site.
Copyright ã Multi-Tech Systems, Inc. 2001
10-Sep-01
If you have access to the World Wide Web, you can register your Multi-Tech product online at http://
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 #______
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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
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
Please direct your questions regarding repair expediting, receiving, shipping, billing, etc., to our Repair
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.
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/
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.
Procedures for international distributors of Multi-Tech products are on the Distributor Web site at http://
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
Email: [email protected]
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Appendix C - Warranty, Service, and 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.
Multi-Tech is a commercial provider on the Internet. Multi-Tech has a Web site at
and an ftp site at
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Appendix D - Upgrading the Firmware
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.
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.
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
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Appendix D - Upgrading the Firmware
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.
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.
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.
1.
2.
Install the Flash Wizard utility by double-clicking the file name in Windows Explorer.
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\.
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Appendix D - Upgrading the Firmware
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 pa-
rameters.
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.
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.
Your modem has been updated. You can now open your terminal program to reprogram your modem pa-
rameters or to confirm the update by typing ATI3 in the terminal window and pressing ENTER.
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Appendix E - Installing a Modem Under Linux
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.
PC port
Com1
Com2
Com3
Com4
Linux port
ttyS0
ttyS1
ttyS2
ttyS3
Connect the external modem to an available serial port.
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.
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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.
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Appendix F - 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 indi-
cate 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 in-
dicates 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 syn-
chronous mode.
16
17
NC
RCLK
V54-2
RC
AL
Receive Clock Output from modem, used in synchro-
nous 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.
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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 syn-
chronous applications.
25
Test Mode Output from modem to indicate modem is in
one of the test modes.
2345
2
Red (Tip)
3
4
5
Green (Ring)
RJ-11
To Terminal
Modular Plug
Block Screws
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.
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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.
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. G-5. Four-wire leased line cable.
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Index
connecting the modem 7
Country Codes List 10
CTS (Clear to Send)
line connection 7
Index
D
A
diagnostics
AT commands 5
driver installation 9
M
modem driver installation 9
modem reset
DTR (Data Terminal Ready)
P
phone connection 7
E
error correction
B
F
fax communications 5
firmware
R
C
removing a modem from Windows
9
RS-232 interface
G
I
connection 7
installing the modem driver 9
S
L
S-registers
CD (Carrier Detect)
leased line
safety 6
connections 8
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Index
Set Country Code Using AT Com-
mands 11
Windows operating systems 9–11
Set Country Code Using Global
Wizard 11
X
Set Country Code Using LCDs 10
Y
Z
T
telephone
connecting a 7
connection 7
U
uninstalling a modem from Windows
9
V
W
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