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Model MT3400ZLX
Owner’ s Manual
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Owner’s Manual
MultiMobile
TM
Model # MT3400ZLX
P/N 82065101
This publication may not be reproduced, in whole or in
part, without prior expressed written permission from MultiTech Systems, Inc. All rights reserved.
Copyright © 1998 by Multi Tech Systems, Inc.
Multi-Tech Systems, Inc. makes no representations or
warranties with respect to the content hereof and
specifically disclaims any implied warranties of
merchantability or fitness for any particular purpose.
Furthermore, Multi-Tech Systems, Inc. reserves the right to
revise this publication and to make changes from time to
time in the content hereof without obligation of Multi-Tech
Systems, Inc. to notify any person or organization of such
revisions or changes.
Record of Revisions
Revision Description
B Minor technical, editorial and format
(8/11/97) changes.
TRADEMARKS
Trademarks of Multi-Tech Systems, Inc. are as follows:
MultiMobile, Multi-Tech, and the Multi-Tech logo. All other
trademarks are owned by their respective companies.
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, Minnesota 55112 U.S.A.
(612) 785-3500 or (800) 328-9717
U. S. FAX 612-785-9874
Fax-Back Service 612-717-5888
Technical Support (800) 972-2439
BBS (612) 785-3702 or (800) 392-2432
Internet Address: http://www.multitech.com
Technical Writer: mark@ multitech.com
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Contents
Chapter 1 - Introduction and Description
About This Manual....................................................6
About This Product ...................................................6
Specifications ...........................................................7
PC Card Interface..............................................7
Dimensions........................................................7
Weight................................................................7
Powe r.................................................................7
Power Consumption ..........................................7
Cable and Connector ........................................7
Modem Characteristics .....................................7
Fax .....................................................................7
Features....................................................................8
System Requirements ..............................................8
Ship Kit Contents......................................................8
Chapter 2 - Installation Quick Start
Introduction...............................................................9
Safety Warnings .......................................................9
Installing The MT3400ZLX Card ............................10
Working With Windows 95 .....................................11
Using the .INF File in the Bundled Diskette....12
Installing under Windows NT 4.0 ...........................1 3
Using the Standard Modem Type (for 28,800
model) ...........................................................13
Using the .INF File in the Bundled Diskette....14
Chapter 3 - AT Commands, S-Registers
and Result Codes
Introduction.............................................................15
How To Use AT Commands....................................15
Basic A T Commands ..............................................16
AT& (Ampersand) Commands ...............................20
AT% (Percent) Commands.....................................22
AT\ (Back Slash) Commands ................................22
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S-Registers (ATSn=x).............................................26
Result Codes ..........................................................31
Chapter 4 - Troubleshooting
Introduction.............................................................33
No response to AT commands ........................33
The modem does not execute the command
line .................................................................33
The modem does not give a response after
an A T command was executed .....................34
The modem gives an ‘ERROR’ response
after an AT command was executed ............34
The modem goes off-hook and disables the
telephone line................................................ 3 4
The modem does not auto-answer the phone 34
The software does not control the modem
properly or can not detect the modem..........35
The characters on the screen are doubled.....35
No text appears on the screen in Data mode.35
No text appears on the screen when in
Command mode............................................35
The modem does not dial a phone number
after Execution of AT dial command .............36
Communications software dials, but Fails ......36
The modem Connects with some modems,
but not others ................................................36
When dialing another modem, You r eceive a
‘CONNECT’ response, but nothing else .......36
The modem speaker does not make any
sound when Connecting to another modem 36
The modem loses the connection when
in use.............................................................37
The modem does not connect with another
modem ..........................................................37
Occasionally, the modem gives a burst of
errors. ............................................................37
The modem gets random errors in
transmitted data. ...........................................37
After Downloading a file, the File does not
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store on your disk drive.................................38
The text on the screen is not legible...............3 8
When using V.42bis or MNP5, some features
are disabled...................................................38
When connecting to another modem, the
modem reports a higher Connect baud rate
that it is really using ......................................39
COM Port and IRQ Conflicts ..................................39
Windows 95 .....................................................3 9
Chapter 5 - Service
Limited Warranty ....................................................40
On-line Warranty Registration................................41
Software User License Agreement ........................41
Tech Support ..........................................................43
Recording Modem Information...............................43
Service ....................................................................44
About the Multi-Tech BBS ......................................45
How to Use the Multi-Tech BBS......................45
About CompuServe/Internet...................................46
About the Multi-Tech Fax-Back System .................47
Appendix A - Specifications
Data: ................................................................48
Fax:..................................................................48
Physical: ..........................................................48
Appendix B - Selecting Hardware
Settings
COMx Ports .....................................................49
Interrupt Requests (IRQs) ...............................49
Appendix C - Regulatory Information
FCC Regulatory Statements ..................................51
Consumer Instructions ....................................5 1
FCC Fax Update .............................................54
Canadian Limitations Notice ..................................54
Index
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MT3400ZLX Owner’s Manual
Chapter 1 - Introduction and Description
About This Manual
This manual explains how to install and use your
MT3400ZLX Fax/Modem card. This chapter offers
an overview of the MT3400ZLX. It includes a
product overview, specifications and features ,
systems requirements and ship kit contents.
About This Product
The MT3400ZLX is a multifunction communication
device that lets you perform multiple communication
tasks at the same time:
• transmit and receive data at up to 33,600 bps
(auto-negotiates to the fastest possible speed),
and
• send and receive faxes from computers or fax
machines.
The MT3400ZLX is a credit-card-size Type II
PCMCIA card that complies with the PCMCIA 2.1
and JEIDA 4.1 standards and works with computers
that incorporate a compatible interface.
It is Bell, ITU-T and AT command compatible,
allowing it to be used worldwide with today’s popular
communication software programs. You can send
and receive faxes with any Group 3 fax machine.
Using standard phone lines, the data
communication functions of the MT3400ZLX permits
you access the Internet, transmit E-Mail, send and
receive information and communicate with other
PCs, Bulletin Board Services (BBS) or on-line
computer networks such as CompuServe and
America On line.
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1 - Introduction and Description
Specifications
PC Card Interface
PCMCIA Type II
Dimensions
3.37” X 2.128” X 0.197”
(85.6 mm X 54 mm X 5 mm)
Weight
1.225 oz. (35 g)
Power
+5V ±5%, @220mA
Power Consumption
Sleep Mode: 400mW (80 mA)
Operating Mode: 750mW (150 mA)
Cable and Connector
one 15-pin detachable connector (to PC card)
and one RJ-11 plug for modem PSTN
connection
Modem Characteristics
V.34bis 33600bps, V.34 28800bps, V.32bis
14400bps
V.42 bis & MNP 2-5 data compression and error
correction
AT command set
ETC (Enhanced Throughput Cellular) protocol
for mobile cellular connections
Fax
Group 3, V.17 14400bps and V.29 9600bps
Fax Service Class 1 and Class 2 compliant
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MT3400ZLX Owner’s Manual
Features
• Compatible with most notebook, laptop and
portable computers
• Compatible with Card and Socket Services
• Easy to install and use
• Card is hot swappable
• Supports popular Fax/Modem communication
programs
• Multifunction CIS
• Concurrent, Low Power, and Sleep modes
• Auto-Sync protocol support
• POST and Loopback Tests
• Pulse/Tone and Adaptive Dialing
System Requirements
• An IBM compatible PC or notebook computer
with 386SX or faster processor
• At least one type II PCMCIA socket
• PCMCIA release 2.1 compliant Card Services
and Socket Services
• an RJ11 jack for connecting to a phone
receptacle
• Data and/or Fax communications software
Ship Kit Contents
Your MT3400ZLX is shipped from the factory with
the following:
• an MT3400ZLX PCMCIA Fax/Modem Card
• Phone cord with RJ-11 plug
• User’s Manual (this manual)
• Fax/Modem communications software disk
• One .INF file disk for Windows 95 and Windows
NT 4.x.
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2 - Installation Quick Start
Chapter 2 - Installation Quick Start
Introduction
This chapter describes how to install your
MT3400ZLX and quick start in Windows 95 and
WindowsNT environment. Proceed to the section
that covers your computer’s operating system.
Safety Warnings
1. Never install telephone wiring during a lightning
storm.
2. Never install telephone jacks in wet locations
unless the jack is specifically designed for wet
locations.
3. This product is to be used with UL and
CUL
listed computers.
4. Never touch uninsulated telephone wires or
terminals unless the telephone line has been
disconnected at the network interface.
5. Use caution when installing or modifying
telephone lines.
6. Avoid using a telephone (other than a cordless
type) during an electrical storm. There may be
a remote risk of electrical shock from lightning.
7. Do not use the telephone to report a gas leak in
the vicinity of the leak.
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Installing The MT3400ZLX Card
1. Insert the MT3400ZLX into the computer’s
PCMCIA slot with the 68-pin connector facing
the PCMCIA slot and the label facing up and
slide the card into the slot.
2. Plug the 15 pin connector with the RJ-11
telephone cable into the 15 pin socket of the PC
card; hardware installation is now complete.
3. Connect the MT3400ZLX to the telephone
system using the RJ-11 (6-pin) plug.
Figure 2-1. PC Card Installation
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2 - Installation Quick Start
Working With Windows 95
Using Standard Modem Type (for 28.8K model) - No
diskette is needed in this installation.
1. Choose
Select from a list of alternate drivers
in the New Hardware Found dialog box.
2. Select
Standard Modem Types
and
Standard
28800 bps Modem
in Select Device dialog
box.
3. Click OK button.
4. Connect the MT3400ZLX interface cable and
connect the RJ-11 plug to the telephone line
outlet.
5. Restart Windows 95; your MT3400ZLX is now
ready to go.
* Insert your MT3400ZLX before running any
communication program.
Figure 2-2. Windows 95 “Add New
Hardware” Illustration
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Using the .INF File in the Bundled Diskette
1. Turn on your computer.
2. Insert the MT3400ZLX card into a free PCMCIA
slot, and make sure if it is firmly seated.
Windows 95 displays the New Hardware
Found dialog box.
3. In New Hardware Found dialog box, select
Driver from disk provided by hardware
manufacturer
, and click OK.
4. Enter the path
A:\
, and insert the MT3400ZLX
.INF file disk. Windows 95 will install the modem
.INF file automatically.
5. Connect the MT3400ZLX interface cable and
connect the RJ-11 plug to the telephone line
outlet.
6. Restart Windows 95; your MT3400ZLX is now
ready to go.
* Insert your MT3400ZLX before running any
communication program.
Figure 2-3. Windows 95 MT3400ZLX
.INF file Installation
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2 - Installation Quick Start
Installing under Windows NT 4.0
There are also two ways to install the PCMCIA
modem for Windows NT 4.0: using the Standard
Modem Type, and using the .INF file in the bundled
diskette.
Using the Standard Modem Type (for 28,800
model)
No .INF file is needed with this method. Proceed as
follows:
1. Make sure the MT3400ZLX card is plugged into
the PCMCIA slot.
2. Run Windows NT 4.0.
3. Double click the Modem icon in Control Panel.
4. Enter Install New Modem and press Next
button to detect the modem automatically.
5. After detection, the Standard modem item
appears.
6. Select Standard modem item and press Next
button.
7. Press Finish button.
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MT3400ZLX Owner’s Manual
Using the .INF File in the Bundled Diskette
The MODEMNT.INF make you more easy to identify
what card is used in your Windows NT 4.0 system.
Proceed as follows:
1. Make sure the PCMCIA card is plugged into the
PCMCIA slot.
2. Run Windows NT 4.0.
3. Double click the Modem Icon in Control Panel.
4. In Install New Modem window, press Next
button to detect the modem automatically.
5. Press Change button to change the modem
type.
6. Press Have Disk... button.
7. Insert the .INF file disk (bundled with the
MT3400ZLX) into the floppy drive.
8. Enter the path (e.g., A:\) and press OK button.
9. Press OK to install the modem.
10. Press the Finish button.
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3 - AT Commands, S-Registers and Result Codes
Chapter 3 - AT Commands, S-Registers
and Result Codes
Introduction
This chapter describes how to use MT3400ZLX AT
commands, S-Registers and Result Codes.
How To Use AT Commands
Usually, your fax and data comm software controls
the modem for you. However, you may also want to
use the AT commands. These commands give you
complete control over your modem. You need to be
careful when using these commands, because they
can cause your software to loose its ability to control
the modem. If you do find that an AT command has
caused a problem, then turn the computer off and
then back on. That will reset most AT commands to
the factory default settings. You can also type
AT&F&WZ
to go back to the factory default setting.
To use an AT command, you must first:
1. Run your communication software.
2. Configure the software for the appropriate COM
port and
IRQ settings, if necessary.
3. Enter Terminal mode (also i.e., “Command
mode”, “Local mode”, or “Direct mode”). This is
the mode in which most data comm software
packages start up. You can then type the
desired AT command, then press the Enter key.
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For example, type:
ATH0<Enter> to hang up the modem
connection, or
AT&K3<Enter> to enable bi-directional CTS/
RTS hardware flow control.
Most of the AT commands can be entered in
“strings” (i.e., on the same command line) without
spaces between the individual commands. For
example:
AT&K3H0<Enter>
As shown above, it is not necessary to put spaces
between the commands. So, there are no spaces
between AT,
&K3
, and H0.
The modem usually returns a response (or “Result
Code”) at the next line if it understands the
command. The response is usually
OK
or
ERROR
unless the AT command provides other (extended)
messages.
Basic A T Commands
Command OptionsFunction & Description
A/ Re-execute the last command string
<any key> Terminate the current connection
attempt when entered in handshaking
state
All the following commands require an “AT” prefix
A Go off-hook and attempt to establish a
connection without waiting for a ring
Bn Line modulation options
B0 Select ITU-T V.22 mode for 1200 bps
connection and V.21mode for 300 bps
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3 - AT Commands, S-Registers and Result Codes
Command OptionsFunction & Description
B1 Select Bell 212A for 1200 bps
connection and Bell 103 for 300 bps
B2 Deselect s V.23 reverse channel
B3 Same as B2
B16 * Selects V.21 when the modem is at
300 bps.
Selects Bell 103J when the modem is
at 300 bps.
Dn Dial command, beginning the dialing
sequence. The string “n” (telephone
number and modifiers) listed as
follows is entered after the “D”
command
P Pulse dial. Only digits 0 to 9 can be
dialed
R Reverse dial. Originate call in answer
mode (go on-line in answer mode)
Sn Dial the phone number stored in
NVRAM at location “n” (n=0, 1, 2, 3)
T DTMF tone dial. Any digit 0 to 9, *, #,
A, B, C… may be dialed as a tone
W Wait for second dial tone. The modem
waits for the second dial tone before
processing the dial string
, Pause. Cause the modem to pause for
a time before processing the dial
string (designed by S8 register)
! Flash hook (for call transfer). Cause
the modem to go on-hook for 0.5
second then return off-hook
@ Wait for 5 seconds of silence after
dialing number
; Return to command state after dialing
a number without disconnecting the
call
En AT command echo options
* Factory default setting
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MT3400ZLX Owner’s Manual
Command OptionsFunction & Description
E0 Echo disabled
E1* Echo enabled
Hn Switch-hook control
H0 Modem goes on-hook
H1 Modem goes off-hook
Mn Speaker control
M0 Speaker always off
M1 * Speaker on until carrier present
M2 Speaker always on
M3 Speaker off during dialing and on until
carrier present
Nn Select negotiate handshake
N0 When originating or answering,
handshake only at the communication
rate specified by S37 register and
“ATBn” and no fallback
N1 * When originating or answering, start
handshaking only at the
communication standard specified by
S37 register and “ATBn” During
handshake, fallback to a lower speed
may occur except in “AT\N1” mode
On Go on-line
O0 Return modem to a previously
established state
O1 Begin an equalizer retrain sequence,
then return to on-line state
O3 to O14 Force modem to a new rate that is
user defined. New rates are defined in
S62 register
P Enable pulse dialing
Qn Result code display options
Q0 * Result code enabled
Q1 Result code disabled
* Factory default setting
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Command OptionsFunction & Description
T Enable tone dialing
Vn Result code form
V0 Display result code in numeric form
(see also the result code options table)
V1 * Display result code in verbose form
Wn Select extended result codes
W0 * CONNECT result code reports DTE
speed (see also the “Result Code
Options Table”)
W1 CONNECT result code reports DTE
speed; enable the CARRIER,
COMPRESSION, and PROTOCOL
extended result code
W2 CONNECT result code reports DCE
speed
Xn Select result codes/call progress
options
X0 Display CONNECT or “1” for all
speeds
X1 Display connect message according to
“ATW” and “AT\V”, blind dial, ignore
busy tone
X2 Display connect message according to
“ATW” and “AT\V”, wait for dial tone,
ignore busy tone
X3 Display connect message according to
“ATW” and “AT\V”, blind dial, check
busy tone after dialing
X4 * Display connect message according to
“ATW” and “AT\V”, wait for dial tone,
check busy tone after dialing
Zn Recall stored profile
Z0 Reset and recall user profile 0
Z1 Reset and recall user profile 1
* Factory default setting
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MT3400ZLX Owner’s Manual
AT& (Ampersand) Commands
Command OptionsFunction & Description
&Bn Auto-retrain
&B1 * Retrain on a poor received signal.
Hang up if condition persists longer
than the threshold set in S7 register
&B2 Don’t hang up; do not retrain (tolerate
any line)
&Cn Data carrier detect option
&C0 State of carrier from remote modem is
ignored. RLSD (Receive Line Signal
Detect) circuit is always on
&C1 * State of carrier from remote modem is
tracked. RLSD circuit reflects the state
of carrier
&Dn Data Terminal Ready (DTR) option.
&D0 DTR ignored
&D1 Go to command mode on on-to-off
DTR transition
&D2 * Hang up and go to command mode on
on-to-off DTR transition. Auto-answer
is disabled if DTR is low
&D3 Hang up and reset from user profile 0
on on-to-off DTR transition
&F Recall factory default setting as active
configuration
&Gn Guard tone option
&G0 * No guard tone
&G1 550 Hz guard tone
&G2 1800 Hz guard tone
&Jn Dummy command for AutoSync
compatibility
&J0 Send OK to DTE
&Kn Set flow control
&K0 Disable flow control
* Factory default setting
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Command OptionsFunction & Description
&K3 * Enable bi-directional hardware flow
control (CTS/RTS)
&K4 Enable bi-directional software flow
control (XON/XOFF)
AT& (Ampersand) Commands
Command OptionsFunction & Description
&M0 * Async mode
&Pn Dial Pulse make/break ratio
&P0 * Make=39%, Break=61% for use in the
United States, international version
Make=33%, Break=67% for use in 10
pps, Japan version
&P1 Make=33%, Break=67% for use in
other countries, international version
Make=33%, Break=67% for use in 20
pps, Japan version
&Rn CTS/RTS option (for non-CTS flow
control mode and synchronous mode
only)
&R0 * CTS follows RTS
&R 1 CTS always true
&Sn Data Set Ready (DSR) option
&S0 * DSR always on
&S1 DSR on during handshake and on-line,
off in test mode or idle mode
&Tn Self-test commands
&T0 Terminate test
&T1 Local analog loopback test
&T3 Local activated remote digital loopback
(RDL) test
&Vn View active configuration and stored
profile
* Factory default setting
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Command OptionsFunction & Description
&V0 View active file, stored profile #0 and
stored phone numbers
&Wn Store active profile
&W0 Save active configuration as user
profile #0
&W1 Save active configuration as user
profile #1
AT& (Ampersand) Commands
Command OptionsFunction & Description
&Yn Select stored profile on power-up
&Y0 Recall user profile 0 on power-up
&Zn=x Store telephone number n=0 to
3x=<string> see also the dial modifier
in ”ATDn” command. The maximum
number of digits per string is 36.
AT% (Percent) Commands
Command OptionsFunction & Description
%Cn Data compression option
%C0 No compression
%C1 * MNP 5 compression
AT\ (Back Slash) Commands
Command OptionsFunction & Description
\An Block size for V.42
\A0 Max. 64 characters
\A1 Max. 128 characters
\A2 Max. 192 characters
\A3 * Max. 256 characters
\Gn Set modem port flow control
* Factory default setting
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3 - AT Commands, S-Registers and Result Codes
Command OptionsFunction & Description
\G0 * Disable port flow control
\G1 Set port flow control to XON/XOFF
\Jn Constant DTE speed option
\J0 * DCE and DTE rates are independent
\J1 DTE rate adjusts to DCE connection
rate after on-line
\K=n Set break control
In on-line data state with V.42 protocol
or normal mode, then break signal to
DTE through RS-232
n=0 or 2 or 4
Enter on-line command state but do
not send break to the remote modem
n=1
Empty the data buffers and send break
to the remote modem immediately
n=3
Send break to the remote modem
immediately
n=5
Send break to the remote modem in
sequence with data in on-line data
state withdirect mode, then receive
break signal at serial port
n=0 or 2 or 4
Immediately send break and enter on-
line command state
n=1 or 3 or 5
Immediately send break through
In on-line command state with V.42
protocol or normal mode, and the DTE
issues a transmit break command
* Factory default setting
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Command Options Function & Description
n=0 or 1
Empty the data buffers and send the
break to the remote modem
n=2 or 3
Send break to the remote modem
immediately
n=4 or 5
Send break to the remote modem in
sequence with data.
In on-line data state with normal
mode, receive break signal from
remote at modem port, send to serial
port
n=0 or 1
Empty the data buffers and send the
break to the local DTE
n=2 or 3
Send break to local DTE immediately
n=4 or 5
Send break to the local DTE in
sequence with data
\Nn Modem protocol options
\N0 Normal mode. No protocol, but flow
control is allowed
\N1 Direct mode. No protocol and no flow
control is allowed
\N2 MNP reliable mode
\N3 * LAPM, MNP or normal mode
\N4 LAPM or MNP mode
\Qn DTE flow control options
\Q0 Disable flow control
\Q1 XON/XOFF software flow control
* Factory default setting
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3 - AT Commands, S-Registers and Result Codes
Command Options Function & Description
\Q3 RTS/CTS hardware flow control
\Tn Set inactive timer
n=0 *
Disable inactive timer
n=1 - 90
Enable inactive timer. Length in
minutes
\Vn Protocol result codes
\V0 * Disable protocol result code (e.g.
CONNECT 9600)
\V1 Enable protocol result code (e.g.
CONNECT 9600/LAP-M)
\Xn XON/XOFF pass-through options
\X0 * Process XON/XOFF per “AT\Gn” and
“AT\Qn” option, if XON/XOFF flow
control is enabled, do not pass XON/
XOFF to the remote modem or local
DTE
\X1 Process XON/XOFF per “AT\Gn” and
“AT\Qn” option, always pass XON/
XOFF to the remote modem or local
DTE
* Factory default setting
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MT3400ZLX Owner’s Manual
S-Registers (ATSn=x)
Certain modem parameters are stored in memory
locations called S-Registers. Use the S command
to read or alter the contents of S-Registers.
S0= 0-255
S0 sets the number of the rings required before the
modem automatically answers a call. Set “S0=0” to
disable auto-answer mode. The factory default
setting is 1.
S1= 0-255
S1counts the incoming rings and stores the value to
this register. The value of this register is
incremented with each ring. If no rings occur over an
8 seconds interval, this register is cleared. User can
read but should not change this value. The factory
default setting is 0.
S2= 0-255
S2 holds the decimal value of the ASCII character
used as the escape character. The default value
(043) corresponds to an ASCII character “+” (plus).
A value of 128 to 255 disables the escape process,
i.e., no escape character will be recognized 043.
S3= 0-127
S3 holds the decimal value of the Carriage Return
<CR> character used as the command line and
result code terminator (asynchronous operation
only). The factory default is 013.
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S4= 0-127
S4 holds the decimal value of the character
recognized as a line feed (asynchronous operation
only). The line feed control character is output after
the carriage return control character, if verbose
result codes are enabled. The factory default is 010.
S5= 0-127
S5 holds the decimal value of the character
recognized as a backspace (asynchronous
operation only). The modem will not recognize the
backspace character if this register is set to a value
greater than 32. The factory default is 008.
S6 = 0-255
S6 sets the length of time, in seconds, that the
modem must wait (minimum 2 seconds even if the
value is less than 2) after going off-hook before
dialing the first digit of the telephone number
The factory default is 002.
S7=1-255 for international version. The factory
default is 050.
S7=0-58 for Japan version. The factory default is
058.
Set the time, in seconds, that the modem must wait
before hanging up because carrier is not detected.
S8= 0-255
S8 sets the time, in seconds, that the modem must
pause when the “,” dial modifier is encountered in
the dial string. The factory default is 002.
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MT3400ZLX Owner’s Manual
S9=1-255
S9 sets the time, in tenths of a second, that the
carrier must be present before the modem considers
it valid and turns on RLSD. The factory default is
000.
S10=1-255
S10 sets the length of time, in tenths of a second,
that the modem waits before hanging up after a loss
of carrier. The factory default is 020.
S11=50-255
S11 sets the DTMF duration and inter digit delay in
mini-seconds, in DTMF touch tone dialing. The
factory default is 095.
S12=0-255
S12 defines the maximum period, in 2-hundredths of
a second, allowed between consecutive
asynchronous escape character “+” (plus) for the
escape sequence to be considered valid. The
factory default is 050.
S18=0-255
S18 sets the length of time, in seconds, that the
modem conducts a test (commanded by “AT&Tn”)
before returning to command mode. If this register
value is zero, the test automatically terminates, the
test progress must be ended by issuing “AT&T0” or
“ATH” commands. The factory default is 000.
S25=0-225
S25 sets the length of time, in hundredths of a
second, that the modem ignores DTR for before
hanging up. The factory default setting is 000.
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3 - AT Commands, S-Registers and Result Codes
S30=0-90
S30 controls the Inactivity timer, which sets the
length of time, in minutes, that the modem counts
when there is no data flow in or out the DTE serial
port. A connection is disengaged when the counter
reaches the preset value. Setting to S30 =0 disables
the inactivity timer. The factory default settings is
000.
S37=Desired DCE speed (line speed). The factory
default settings is 000.
0 Attempt to connect at the last “AT” speed
3 Attempt to a 300 bps connection
5 Attempt to a 1200 bps connection
6 Attempt to a 2400 bps connection
7 Attempt to a 4800 bps connection
8 Attempt to a 7200 bps connection
9 Attempt to a 9600 bps connection
10 Attempt to a 12000 bps connection
11 Attempt to a 14400 bps connection
12 Attempt to a 16800 bps connection
13 Attempt to a 19200 bps connection
14 Attempt to a 21600 bps connection
15 Attempt to a 24000 bps connection
16 Attempt to a 26400 bps connection
17 Attempt to a 28800 bps connection
18 Attempt to a 33600 bps connection
S46=0-255
S46 Sets the length of time in 100 mSec, before the
modem goes into standby mode. A value of 255
prevents standby mode. The factory default settings
is 100.
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MT3400ZLX Owner’s Manual
S62 DTE rate status. The factory default is 000.
0 300 bps 16 57600 bps
1 600 bps 17 1 15200 bps
2 1200 bps
3 2400 bps
4 4800 bps
5 9600 bps
6 7200 bps
7 12000 bps
8 14400 bps
9 16800 bps
10 19200 bps
1 1 21600 bps
12 24000 bps
13 26400 bps
14 28800 bps
15 38400 bps
S64 = 9-20
Transmitting power level adjustment (Japan version
only)
Range: -9 dBm to -20 dBm
Default: -15 dBm015
S72 selects DTE speed during data transfer. The
factory default settings is 000.
0 300 bps 17 57600 bps
1 600 bps 18 1 15200 bps
2 600 bps
3 1200 bps
4 2400 bps
5 4800 bps
6 9600 bps
7 7200 bps
8 12000 bps
9 14400 bps
10 16800 bps
1 1 19200 bps
12 21600 bps
13 24000 bps
14 26400 bps
15 28800 bps
16 38400 bps
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3 - AT Commands, S-Registers and Result Codes
Result Codes
In Command mode, the MT3410ZLX can send
information and status responses, or Result Codes,
to your computer. Result Codes are used by
communications programs and can also appear on
your monitor. The form of the Result Code
information displayed can be defined using the
Qn
,
Vn, Wn
and Xn commands.
Terse VerboseDescription
0OK
Command executed
1 CONNECT
Modem connected
to line
2 RING
Ring signal detected
3 NO CARRIER
Carrier signal lost or
not detected
4 ERROR
Invalid command
5* CONNECT 1200
Connected at 1200 bps
6 NO DIALTONE
No dial tone detected
7 BUSY
Busy signal detected
8 NO ANSWER
No answer at remotely
10* CONNECT 2400
Connected at 2400 bps
11* CONNECT 4800
Connected at 4800 bps
12* CONNECT 9600
Connected at 9600 bps
13* CONNECT 14400
Connected at 14400
bps
14* CONNECT 19200
Connected at 19200
bps
24* CONNECT 7200
Connected at 7200 bps
25* CONNECT 12000
Connected at 12000
bps
40* CONNECT 300
Connected at 300 bps
55* CONNECT 21600
Connected at 21600
bps
56* CONNECT 24000
Connected at 24000
bps
57* CONNECT 26400
Connected at 26400
bps
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MT3400ZLX Owner’s Manual
Terse VerboseDescription
86* CONNECT 16800
Connected at 16800
bps
88 DELAYED
Delay is in effect for
the dialed number
89 BLACKLISTED
Dialed number is
blacklisted
90 BLACKLIST FULL
Blacklist is full
*
EC
is added to Result Codes when extended
Result Codes option is enabled.
EC
is replaced by
one of the following codes, depending on the type of
error control:
V42bis
(V.42 error control [LAP-M] and
V.42bis compression);
V42
(V.42 error control [LAP-
M] only);
MNP5
(MNP 4 error control and MNP 5
compression);
MNP4
(MNP 4 error control only);
NoEC
(No error control protocol).
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4 - Troubleshooting
Chapter 4 - Troubleshooting
Introduction
This chapter provides general and specific problem
solving steps. Below are a number of examples of
Problems (In bold text), Causes (C:), and Solutions
(S:). If your MT3400ZLX is not working properly,
look up the problem and solution here; if
unsuccessful, call Tech Support (see Chapter 5). At
the end of this chapter are some specific steps for
resolving IRQ and COM port conflicts.
No Response to AT Commands
C: The COMx port that the modem is set to may be
used by another card in the computer already.
S: Change the COMx port of MT3400ZLX to a
different unused port. It might be best to set it to
COM3 or COM4. Even if you are not using a
serial port which is set to the same COMx port
as the modem, it can still interfere with the
modem. Be sure to update your software COMx
port setting as well.
C: The Interrupt that the modem is using may be
the same Interrupt that another card is using.
S: Change the IRQ settings to a different, unused,
IRQ. Even if you are not using a serial port
which is set to the same IRQ as the modem, it
can still interfere with the modem.
The Modem Does Not Execute the
Command Line
C: Make sure you are typing
‘AT’
at the beginning
of command line (and hit Enter at the end).
C: Make sure the modem is not in Data Mode.
Type
+++
if necessary.
C: Make sure your software is set to the same
COMx port as your MT3400ZLX.
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MT3400ZLX Owner’s Manual
The Modem Does Not Give a Response After an
AT Command Was Executed
C: The echo and/or responses may be turned off
by the
ATE0Q1
commands. Enable the
AT&V1
to check Result Codes.
S: Use
ATE1Q0
then Enter to change them back.
C: Make sure the modem is in Command Mode
and not Data Mode when you type the AT
command.
The Modem Gives an ‘ERROR’ Response After
an AT Command was Executed
C: Make sure you did not type an invalid
command.
C: Make sure your command line is 40 characters
or less.
The Modem Goes Off-Hook and Disables the
Telephone Line.
C: The modem may be set to auto-answer the
phone when it rings.
S: Disable auto-answer by typing
ATS0=0
then
Enter at the command line.
The Modem Does Not Auto-Answer the Phone
C: If necessary, make sure the software is
configured to auto-answer the phone.
A: To set auto-answer mode on from AT command
mode, type
ATS0=n
then press Enter. The
n
stands for which number of rings the modem
answers. For example:
ATS0=3
causes the
modem to answer on the third ring.
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35
4 - Troubleshooting
The Software Does Not Control the Modem
Properly or Can Not Detect the Modem
S: Make sure the software has been set up
correctly. Check the initialization string and dial
string.
C: Some TSRs (programs that stay in memory
after they are loaded) may conflict with the
communications software.
S: Try starting your computer without loading any
TSRs.
The Characters on the Screen Are Doubled
C: Both the modem and the software have the
echo feature turned on.
S: Since only one needs an echo, turn the
software echo feature off.
C: The remote modem is echoing your typed
characters.
S: Type
ATE1
then Enter at the command line.
Then turn off the software echo feature.
No Text Appears on the Screen in Data Mode
C: The remote modem is not echoing your typed
characters.
S: Type
ATE0
then press Enter at the command
line. Then turn the software echo feature on.
C: Your software may not be set to use Full Duplex
or the remote modem may not be set to use Full
Duplex either.
C: The remote modem may be waiting for you to
type a command before it will reply with text.
No Text Appears on the Screen When in
Command Mode
S: If you can’t see the characters you are typing,
then type
ATE1
then press Enter.
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MT3400ZLX Owner’s Manual
The Modem Does Not Dial a Phone Number
After Execution of AT Dial Command
C: If you are using touch tone dialing on a phone
line that requires pulse dialing, then it may not
work.
S: Use
ATDT
in place of
A TDP
.
Communications Software Dials, but Fails
C: Make sure the software dialing prefix is
ATDT
.
C: Make sure the software and modem are set to
the same COMx port.
C: The modem may not have hung up the phone
line since the last call.
S: Change to Command mode and type
ATH
then
press Enter.
The Modem Connects with Some Modems, but
Not Others
C
: The remote modem may not support data
compression or error correction, which might
cause it to take too long to negotiate a link.
S: You might try changing the way the modem
negotiates by using the
AT&Qn, ATNn
, and
ATS37=n
commands. It might be best to start
with
AT&Q0N1
.
When Dialing Another Modem, You Receive a
‘CONNECT’ Response, but Nothing Else
C: The remote modem may be waiting for you to
type a command.
S: Try to log on to the remote site (press Enter).
S: Type an AT command, then press Enter.
The Modem Speaker Does Not Make Any Sound
When Connecting to Another Modem
C: The software may have the speaker disabled.
S: Change the setting in your software or use the
ATMn
command to turn the speaker on.
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4 - Troubleshooting
The Modem Loses the Connection When in Use
C: The remote modem may have locked up.
S: Run the Remote Digital Loopback Test (
&T4
command).
C: The telephone switch may have disconnected
your call.
C: Your software may have turned off the DTR
signal.
The Modem Does Not Connect with Another
Modem
C: There may be a problem with the remote
modem if you do not hear the high pitched tone
from the remote modem.
S: Run the Remote Digital Loopback Test (
&T4
command).
Occasionally, the Modem Gives a Burst of
Errors.
C: The telephone line may be noisy or bad.
S: Hang up the call and try to connect again for
getting a better telephone line.
C: If there are other telephones on the same line
that your modem is using, someone may have
picked up a telephone on that extension.
C: Your telephone line may have the call waiting
feature.
S: Try adding
*70
to your
ATDT
dialing command
line. If it doesn’t help, ask your telephone
company how to temporarily disable call
waiting.
The Modem Gets Random Errors in Transmitted
Data.
S: Try to use V.42 or MNP1-4 if possible.
S: Connect the modems at a slower baud rate.
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MT3400ZLX Owner’s Manual
After Downloading a File, the File Does Not Store
on Your Disk Drive
C: If both modems are using MNP or V.42 protocol,
then flow control may not be enabled.
S: Configure your software to use RTS/CTS flow
control to cause your computer to pause long
enough for the file to be stored to disk.
The Text on the Screen Is Not Legible
C: Your software settings may not match the
settings of the remote device.
S: Make sure your data bits, stop bits, and parity
settings match the settings that the other
computer is using. The two most common
settings are: 8 data bits, None parity, and 1 stop
bit (8,N,1) or 7 data bits, Even parity, and 1 stop
bit (7,E,1).
C: If the telephone line is very noisy, you may see
corrupted data on your screen.
C: Due to poor telephone line conditions, the
modem may have fallen back to a slower
communication speed. You may need to change
the baud rate setting in your software to match
this slower speed. To return the modem to the
higher speed, disconnect the link and reestablish again.
When Using V.42bis or MNP5, Some Features
Are Disabled
C: You may be using a non-streaming protocol,
like Xmodem or Ymodem to transfer files.
Those are fine unless you are using V.42bis or
MNP5
S: When using V.42bis or MNP5, you should use a
streaming transfer protocol like Ymodem-G or
Zmodem.
S: Configure your software to use hardware flow
control (RTS/CTS ON).
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4 - Troubleshooting
When Connecting to Another Modem, the
Modem Reports a Higher Connect Baud Rate
that it Is Really Using
C: The modem defaults to report the modem-to-
computer baud rate when it responds with
CONNECT
.
S: Go to Command mode with your
communication program (like Telix) and type
ATW2
, then press Enter. This tells the modem
to report the modem-to-modem baud rate
instead.
COM Port and IRQ Conflicts
If you have isolated the problem to an IRQ or COM
port conflict, refer to the following section for
resolving IRQ and COM port conflicts.
Windows 95
In Windows 95, 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
Communications 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 will appear
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.
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MT3400ZLX Owner’s Manual
Chapter 5 - Service
This chapter begins with the terms of your modem’s
warranty. Read carefully the next section, Tech
Support, if you have questions or problems with
your modem. It includes the technical support
telephone numbers and an explanation of how to
send in your modem should you require service. The
final sections explain how to use our bulletin board
service (BBS), and get support through
CompuServe, the Internet and the Multi-Tech FaxBack System.
Limited Warranty
Multi-Tech Systems, Inc. (
“MTS”
) warrants that its
products will be free from defects in material or
workmanship for a period of five years from the date
of purchase, or if proof of purchase is not provided,
five years from date of shipment. MTS MAKES NO
OTHER WARRANTY, EXPRESSED 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 the 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.
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5 - Service
MTS WILL NOT BE LIABLE FOR
CONSEQUENTIAL DAMAGES AND UNDER NO
CIRCUMSTANCES WILL ITS LIABILITY EXCEED
THE PURCHASE PRICE FOR DEFECTIVE
PRODUCTS.
On-line Warranty Registration
To register your Multi-Tech product on-line, click on
the following link:
http://www.multitech.com/support/register.htm
Software User License Agreement
The MT3400ZLX software is licensed by Multi-Tech
Systems, Inc. to the original end-user purchaser of
the product, hereafter referred to as “licensee”. The
License includes the distribution diskette, other
accompanying programs, and the documentation.
The MT3400ZLX software, hereafter referred to as
“software”, consists of the computer program files
included on the original distribution diskette.
Licensee agrees that by purchase and/or use of the
Software, he hereby accepts and agrees to the
terms of this License Agreement.
In consideration of mutual covenants contained
herein, and other good and valuable considerations,
the receipt and sufficiency of which is
acknowledged, Multi-Tech Systems, Inc. does
hereby grant to the Licensee a nontransferable and
non-exclusive license to use the Software and
accompanying documentation, on the following
conditions and terms:
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MT3400ZLX Owner’s Manual
The Software is furnished to the Licensee for
execution and use on a single computer system only
and may be copied (with the inclusion of the MultiTech Systems, Inc. copyright notice) only for use on
that computer system.
The Licensee hereby agrees not to provide or
otherwise make available any portion of this
software in any form to any third party without the
prior express written approval of Multi-Tech
Systems, Inc.
Licensee is hereby informed that this software
contains confidential, proprietary and valuable trade
secrets developed by or licensed to Multi-Tech
Systems, Inc. and agrees that sole ownership shall
remain with Multi-Tech Systems, Inc.
The Software is copyrighted. Except as provided
herein, the Software and documentation supplied
under this agreement may not be copied,
reproduced, published, licensed, sub-licensed,
distributed, transferred, or made available in any
form, in whole or in part, to others without expressed
written permission of Multi-Tech Systems, Inc.
Copies of the software may be made to replace
worn or deteriorated copy for archive or emergency
back-up procedures.
Licensee agrees to implement sufficient security
measures to protect Multi-Tech Systems, Inc.
proprietary interests and not to allow the use,
copying or transfer by any means, other than in
accordance with this agreement.
Licensee agrees that any breach of this agreement
will be damaging to Multi-Tech Systems, Inc.
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5 - Service
Tech Support
Multi-Tech 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 your Multi-Tech modem,
please call 1-800-972-2439. Please fill in the
modem information form (below), and have it
available when you call. If your modem requires
service, the technical support specialist will guide
you on how to send in your modem (see
“Service”section).
Recording Modem Information
Please fill in the following information on your MultiTech modem. This will help Tech Support in
answering your questions. (The same information is
requested on the warranty registration card.)
Modem model #
___________________________
Modem serial#____________________________
Modem firmware version #
___________________
Software name
____________________________
Software version #
_________________________
The modem model number and serial number are
printed on a label on the bottom of your modem.
The software version numbers are printed on the
diskette labels. You can also find the software
version numbers by selecting Help >> About... from
the software menu bars. Enter the ATI1 command to
display the modem firmware version number. Before
calling Tech Support, please check your cables to
ensure they are connected properly; then note the
status of your modem including status indicators,
screen messages, diagnostic test results, problems
with a specific application, etc.
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MT3400ZLX Owner’s Manual
Service
If your tech support specialist decides that service is
required, you may send your modem to our factory
(freight prepaid). Return shipping charges will be
paid by Multi-Tech Systems (with North America).
Include the following with your modem:
• A description of the problem.
• Return billing and return shipping addresses.
• Contact name and phone number.
• Check or purchase order number for payment if
the modem is out of warranty. (The standard
repair charge for this modem is $95. This price
is valid at the time of this publication, but could
change in the future. Check with your technical
support specialist.)
• If possible, note the name of the technical
support specialist with whom you spoke.
If you need to inquire about the status of the
returned product, be prepared to provide the
serial
number
of the product sent (see “Recording Modem
Information”).
Send modems to the following address:
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, MN 55112
Attn.: Servie or Repairs
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5 - Service
About the Multi-Tech BBS
Multi-Tech Systems maintains a bulletin board
system (BBS) for its customers. The information
available via the BBS includes new product
information, product upgrade data, problem-solving
tips, and a message service you can use to request
additional information. The phone number for the
Multi-Tech BBS is (612) 785-3702 or (800) 392-2432
(USA and Canada).
The BBS can be accessed by any asynchronous
modem operating at speeds of 1200 bps to 28,800
bps at a setting of 8 bits word length, no parity, and
1 stop bit (8-N-1).
How to Use the Multi-Tech BBS
To use Multi-Tech’s BBS, perform the following
steps.
1. Set your communications program to 8-N-1, and
to emulate ANSI (with MultiExpress™ software,
press ALT+Z and choose “ANSI”).
2. Dial our BBS at 1-800-392-2432 (USA and
Canada) or 612-785-3702 (international).
3. At the prompts, type your first name, last name,
and password; then press RETURN. If you are
a first-time caller, after you press RETURN, the
BBS will ask if your name is spelled correctly. If
you answer yes, our questionnaire will be
displayed. You can use our BBS on your first
call.
4. There are four BBS areas: the Main Menu, the
Files Menu, Bulletins (from the Main Menu), and
the Message Menu. All bulletins are menudriven. To read the bulletins, enter the number
of the bulletin you wish to read.
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MT3400ZLX Owner’s Manual
5. Files Menu: From the Main Menu, type F to
display the Files Menu. If you want a list of
directories, type L (list directory) and then type
L again for a list of all directories. If you do not
type the second L, you will list all of the files on
the BBS. At the list of directories, select the
number of the directory required. A list of files
and a description for each of the files will be
displayed. Select a file that you would like to
download. If you already know the file name,
type D at the Files Menu to download the
selected file(s). Type V to view a text file.
6. At the Message Menu, you can leave a
message to the sysop (you cannot read
messages at this point). The BBS will tell you if
you have a personal message (mail). At the
prompt
Would you like to read it now?,
type R
for “read now”. You must read your message(s)
when you first access the BBS.
About CompuServe/Internet
In addition to the BBS, Multi-Tech provides support
through CompuServe’s Modem Vendor Forum (GO
MODEMVEN) under GO MULTITECH. You can
download manuals, Help files, drivers, ARA and
Microsoft Mail scripts, and product descriptions from
Multi-Tech’s forum library. Please refer to your
CompuServe documentation for special operating
procedures.
Multi-Tech is a commercial user on the Internet, and
we retrieve messages from our customers on a
periodic basis. If you prefer to receive technical
support via the Internet, you can contact Tech
Support via e-mail.
Multi-Tech also has a home page on the World Wide
Web. The address is: http://www.multitech.com
.
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5 - Service
About the Multi-Tech Fax-Back System
Multi-Tech’s fax-back system provides 24-hour
access to sales/marketing and technical literature.
Dial (612) 717-5888, follow the voice prompts, and
enter the document number for either the “Sales and
Marketing” catalog or the “Technical Support”
catalog of available documents. For convenience,
have your fax number handy:
_________________________.
From the Sales and Marketing catalog, you can
request to have newsletters, white papers, press
releases, brochures, and other marketing literature
faxed to you. From the Technical Support catalog,
you may request basic modem operation information
and troubleshooting guides. With either catalog,
simply enter the applicable FB Doc. # of the
literature you wish to receive from the left column of
the catalog.
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MT3400ZLX Owner’s Manual
Appendix A - Specifications
Data:
• V.34bis 33.6K bps, V.34 28.8K bps, V.32bis
14.4K bps
• AT Command Set Compatible
• V.42bis & MNP 5 Data Compression
• V.42 & MNP 2-4 Error Correction
• Enhanced Throughput Cellular (ETC) protocol
for mobile cellular connection
Fax:
• G3, V.17 14.4K bps, V.29 9.6K bps, V.27ter
2.4K bps
• Fax Service Class 1 and Class 2 Compliant
• Line Quality Receive Level Monitoring
• NVRAM Directory Stored Profiles
• Flow Control (XON/XOFF, RTS/CTS)
• Speed Buffering
• Automatic Format/Speed Sensing
• Auto Retrain
Physical:
• PCMCIA Type II
• 3.37 in. x 2.128 in. x 0.197 in.
• (85.6mm x 54mm x 5mm)
• Weight: 1.225 oz. (35 g)
• Power: +5V ±5%, @220mA
Sleep Mode: 400mW (80 mA)
Operating Mode: 750mW (150 mA)
• One 15-pin connector with RJ-11
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Appendices
Appendix B - Selecting Hardware
Settings
When installing a card in an IBM PC compatible
computer, it is important to choose settings, for that
card, that do not conflict with any other cards in the
computer. What follows are some of the settings that
other cards in your computer may already be using.
Your goal is to choose an Interrupt (IRQ) and a
COM port for your modem that does not interfere
with anything in your computer. When you have
selected the desired Port and Interrupt, follow the
instructions in Chapter 2 for using the CONFIG.SYS
settings. Remember to update your communications
software to the same settings.
COMx Ports
Port I/O What cards/ports may be using it
COM1: 3F8h The computer may already have an
internal COM1: serial port.
COM2: 2F8h The computer may already have an
internal COM2: serial port.
COM3: 3E8h The computer may already have an
internal COM3: serial port.
COM4: 2E8h The computer may already have an
internal COM4: serial port.
Interrupt Requests (IRQs)
IRQ What cards/ports may be using it
0 The Computer’s Timer (not a possible choice).
1 The Keyboard (not a possible choice).
2 If you have a PC XT: 8-bit Network card, VGA
card, hand scanner, bus mouse, MIDI card or a
sound card.
If you have a PC AT:Computer’s Controller
3 Computer’s COM2:, COM4:, COM6:, COM8:,
Network card, SCSI hard drive controller, hand
scanner, bus mouse, or a sound card.
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MT3400ZLX Owner’s Manual
IRQ What cards/ports may be using it
4 Computer’s COM1:, COM3:, COM5:, COM7:,
Network card, hand scanner, bus mouse, or a
sound card.
5 Computer’s LPT2:, Network card, MFM Hard
drive controller, MIDI card, VGA, SCSI hard
drive controller, hand scanner, bus mouse, or a
sound card.
6 Floppy disk drive controller, Network card, or a
sound card. (not a possible choice).
7 Computer’s LPT1:, Network card, hand
scanner, MIDI card, or a sound card.
8 Computer’s clock. (only on a PC AT, not a
possible choice).
9 VGA or a Network card (similar to IRQ2).
10 Network card.
11 Network card (not a possible choice).
12 Network card or a bus mouse (not a possible
choice).
13 Computer’s co-processor (not a possible
choice).
14 Hard drive controller or a Network card (not a
choice).
15 Second hard drive controller or a Network card
(not a choice).
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Appendices
Appendix C - Regulatory Agency
Information
FCC Regulatory Statements
Consumer Instructions
1. 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 and ringer equivalence number
(REN). If requested, this information must be
provided to the telephone company.
2. As indicated below, the suitable jack (Universal
Service Order Code connecting arrangement) for
this equipment is shown. If applicable, the facility
interface codes (FIC) and service order codes
(SOC) are shown.
3. An FCC-compliant telephone 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
which is Part 68 compliant. See installation
instructions for details.
4. The ringer equivalence number (REN) is used to
determine the quantity of devices not ringing in
response to an incoming call. In most, but not all
areas, the sum of the REN’s should not exceed five
(5.0). To be certain of the number of devices tat
may be connected to the line, as determined by the
total REN’s, contact the telephone company to
determine the maximum REN for the calling area.
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MT3400ZLX Owner’s Manual
5. 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 the
customer 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.
6. 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.
7. 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
equipment is causing harm to the network, the
telephone company may request you to remove the
equipment from the network until the problem is
resolved.
8. 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.
9. This equipment cannot be used on public coin
service provided by the telephone company.
Connection to Party Line Service is subject to state
tariffs. (Contact the state public utility commission,
public service commission or corporation
commission for information.)
10. If so required, this equipment is hearing-aid
compatible.
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Appendices
Manufacturer: Multi-Tech Systems, Inc.
Trade Name: MultiMobile
Model Number: MT3400ZLX
FCC Registration #: 503TAI-30556-PT-E
Ringer Equivalence: 0.6B
Modular Jack (USOC): RJ11C or RJ11W (single
line)
Service Center in USA: Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, MN 55112
Phone: (612) 785-3500
Fax: (612) 785-9874
NOTE: This equipment has been tested and found
to be comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC rules. These
limits are designed to provide reasonable protection
against harmful interference when the equipment is
operated in a residential installation. This
equipment generates, uses and can radiate radio
frequency energy, and if not installed and used in
accordance with the instruction manual, may cause
harmful interference to radio communications.
However there is no guarantee that interference will
not occur in a particular installation. If this
equipment does cause harmful interference to radio
or television reception, which can be determined by
turning the equipment off and on, the user is
encouraged to try to correct the interference by one
or more of the following measures:
Reorient or relocate the receiving antenna
Increase the separation between the equipment and
receiver.
Connect the equipment into an outlet on a circuit
different from that to which the receiver is
connected.
Consult the dealer or an experienced radio/TV
technician for help.
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MT3400ZLX Owner’s Manual
This device complies with Part 15 of the FCC rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference that
may cause undesired operation.
Warning: Changes or modifications to this unit not
expressly approved by the party responsible for
compliance could void the user’s authority to
operate the equipment.
FCC Fax Update
The Telephone Consumer Protection Act of 1991
makes it unlawful for any person to use a computer
or other electronic device to send any message via
a telephone fax machine unless such message
clearly contains in a margin at the top or bottom of
each page or the first page of the transmission, the
date and time it is sent and an identification of the
business or other entity, or other individual sending
the message and the telephone number of the
sending machine or such business, other entity, or
individual. See the cover page of your fax software
manual for setup details.
Canadian Limitations Notice
Notice: The ringer equivalence number (REN)
assigned to each terminal device provides an
indication of the maximum number of terminals
allowed to be connected to a telephone interface.
The termination of a 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.
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Appendices
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 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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MT3400ZLX Owner’s Manual
Index
Symbols
.INF File ...................................................... 12, 1 4
.INF file .............................................................. 1 2
A
About This Manual .............................................. 6
About This Product .............................................. 6
Ampersand Commands ....................... 20, 21, 22
AT Commands, S-Registers and Result Codes 1 5
auto-answer ................................................ 26, 3 4
B
Back Slash Commands .....................................22
backspace character .........................................27
Basic AT Commands .................................. 16, 17
Bulletin board systems
Multi-Tech BBS ........................................... 45
C
Cable and Connector .......................................... 7
Canadian Limitations Notice .............................54
Carriage Return <CR> character ......................2 6
characters echo .................................................35
COM Port and IRQ Conflicts .............................39
CompuServe
Multi-Tech support ......................................46
CompuServe/Internet ........................................46
COMx Ports ....................................................... 49
‘CONNECT’ response problem .........................36
connection problem ...........................................37
Consumer Instructions ...................................... 51
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Index
D
Data Specifications ............................................48
Desired DCE speed ...........................................29
Dimensions ..........................................................7
DTE speed ......................................................... 30
DTMF duration and inter digit delay ................. 2 8
DTR ....................................................................28
E
‘ERROR’ response ............................................ 34
errors .................................................................37
escape character ...............................................2 6
F
Fax .......................................................................7
Fax Specifications .............................................48
FCC Fax Update ................................................54
FCC Regulatory Statements .............................51
H
Hardware Settings ............................................. 4 9
How To Use AT Commands ...............................15
I
I/O addressing ................................................... 49
Inactivity timer ....................................................29
incoming rings ................................................... 26
Installation Quick Start ........................................ 9
Installing The MT3400ZLX Card .......................10
Installing The MT3410ZLX Card .......................10
Interrupt Requests (IRQs) .................................49
Introduction and Description ........................ 6 , 3 3
L
line feed character ............................................. 27
loss of carrier setting .........................................28
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MT3400ZLX Owner’s Manual
M
Modem Characteristics ........................................ 7
modem connection problem ..............................36
modem does not connect .................................. 37
modem does not give a response after an AT
command .........................................................34
modem loses connection .................................. 3 7
modem speaker control ..................................... 36
Multi-Tech BBS ..................................................4 5
Multi-Tech Fax-Back System .............................47
Multi-Tech's BBS ...............................................45
N
NOS Selection Screen ........................ 10, 11, 1 2
P
PC Card Installation .......................................... 1 0
PC Card Interface ................................................ 7
Power ................................................................... 7
Power Consumption ............................................7
R
random errors in transmitted data ..................... 3 7
Registration .......................................................43
S
S-Registers ........................................................ 26
Safety Warnings .................................................. 9
Selecting Hardware Settings ............................. 4 9
Service ............................................................... 4 4
Ship Kit Contents ................................................. 8
software problem ............................................... 35
Software User License Agreement ................... 41
Specifications ......................................................7
Page 59
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Index
T
Technical support ......................... 4 3 , 4 4 , 45, 46
Terse/Verbose ....................................................31
Transmitting power level adjustment ................30
Troubleshooting ................................................. 3 3
V
V.42bis/MNP5 ....................................................38
W
Warranty .....................................................40, 44
Weight .................................................................. 7
Windows 95 ................................................ 11, 39
Windows 95 “Add New Hardware” .................... 11
Windows NT 4.0 ................................................13
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