Multitech MultiModem MT9234ZPX-UPCI User manual

1MultiModem ZPX UPCI/PCIe User Guide
MultiModem® ZPX
V.92 Internal Modem
MT9234ZPX-UPCI and MT9234ZPX-PCIE
User Guide

Copyright and Technical Support
2MultiModem ZPX UPCI/PCIe User Guide
MultiModem® ZPX User Guide
MT9234ZPX-UPCI, MT9234ZPX-UPCI-NV, MT9234ZPX-PCIe, MT9234ZPX-PCIe-NV
P/N S000414F, Revision G
Copyright
All rights reserved. This publication may not be reproduced, in whole or in part, without prior expressed written permission from Multi-
Tech Systems, Inc. Copyright © 2012 by Multi-Tech Systems, Inc.
Multi-Tech Systems, Inc. makes no representation or warranties with respect to the contents 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. Check Multi-Tech’s Web site for current versions of our product documentation.
Revision History
Revision
Date
Description
D
03/20/12
Removed CD references. Added link to Installation Resources site.
E
10/04/12
Corrected typographical errors. Added voice jumper information.
F
12/12/12
Updated RoHS.
G
12/12/13
UL translations.
Trademarks
MultiModem, Multi-Tech, and the Multi-Tech logo are trademarks of Multi-Tech Systems, Inc. Microsoft, Windows 2003, XP, Vista, Win7,
and Windows Server 2008 are registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.
Patents
This device covered by one or more of the following patents: 6,031,867; 6,012,113; 6,009,082; 5,905,794; 5,864,560; 5,815,567; 5,815,503;
5,812,534; 5,809,068; 5,790,532; 5,764,628; 5,764,627; 5,754,589; 5,724,356; 5,673,268; 5,673,257; 5,644,594; 5,628,030; 5,619,508;
5,617,423; 5,600,649; 5,592,586; 5,577,041; 5,574,725; 5,559,793; 5,546,448; 5,546,395; 5,535,204; 5,500,859; 5,471,470; 5,463,616;
5,453,986; 5,452,289; 5,450,425; D353, 598; 5,355,365; 5,309,562; 5,301,274; 7082106;7082141;7092406. Other Patents Pending.
World Headquarters
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, Minnesota 55112
Phone: [phone] or 800-328-9717
Fax: [phone]
Internet Address: http://www.multitech.com
Contacting Multi-Tech Support
To better serve our customers, manage support requests and shorten resolution times, we have created the online web portal that lets you
submit questions regarding Multi-Tech products directly to our technical support team. Get answers to your most complex questions,
ranging from implementation, troubleshooting, product configuration, firmware upgrades and much more. To create an account and
submit a Support Case on the Portal, visit support.multitech.com
Online Web Portal https://support.multitech.com/
The Knowledge Base provides immediate answers to your questions and gives you access to support resolutions for all Multi-Tech products.
Visit our support area on the website for other support services.
Knowledge Base and Support Services www.multitech.com/en_US/SUPPORT
Technical Support
Business Hours: M-F, 9am to 5pm CST
Country
By Email
By Phone
Europe, Middle East, Africa:
[email protected]
+(44) 118 959 7774
U.S., Canada, all others:
[email protected]
[phone] or [phone]
Warranty
To read the warranty statement for your product, please visit: http://www.multitech.com/en_US/COMPANY/Policies/warranty/

MultiModem ZPX UPCI/PCIe User Guide 3
Contents
Chapter 1 –Description and Specifications........................................................................................................5
Product Description................................................................................................................................................5
Package Contents...................................................................................................................................................5
AT and Fax Commands...........................................................................................................................................5
Technical Specifications .........................................................................................................................................6
Chapter 2 –Windows Installation .....................................................................................................................8
Downloading the Windows Drivers........................................................................................................................8
Using the Windows Installer ..................................................................................................................................8
Chapter 3 –Hardware Installation ....................................................................................................................9
Safety Notices.........................................................................................................................................................9
Analog Telecom Safety Warnings...........................................................................................................................9
TNV Circuit Safety...................................................................................................................................................9
Installing your MultiModem.................................................................................................................................10
Cabling Your Modem............................................................................................................................................11
Connecting the Modem to the Phone Line ...................................................................................................11
Changing the Voice Jumper ...........................................................................................................................11
Connecting a Phone (Optional)......................................................................................................................11
Connecting a Microphone and Headphone (Optional) .................................................................................11
Connecting the Sound Card and Speaker (for Voice Option) ........................................................................12
Chapter 4 –Linux Installation .........................................................................................................................13
Verifying that Linux Detected the Modem...........................................................................................................13
Identifying Ports...................................................................................................................................................13
Verifying that the Modem Works ........................................................................................................................13
Chapter 5 –Configure the Modem for Your Country........................................................................................16
Installing the Global Wizard .................................................................................................................................16
Using the Global Wizard.......................................................................................................................................16
Using AT Commands to Configure Your Modem .................................................................................................16
Chapter 6 –Remote Configuration..................................................................................................................17
Configuring a Remote Modem.............................................................................................................................17
Changing the Setup Password..............................................................................................................................17
Changing the Remote Escape Character..............................................................................................................18
Appendix A –Troubleshooting........................................................................................................................19
Modem Does Not Respond to Commands...........................................................................................................19
Modem Cannot Connect When Dialing................................................................................................................20
Modem Disconnects While Online.......................................................................................................................20
Modem Cannot Connect When Answering..........................................................................................................21
File Transfer Is Slower Than It Should Be .............................................................................................................21

Contents
4MultiModem ZPX UPCI/PCIe User Guide
Data Is Lost ...........................................................................................................................................................22
Garbage Characters on the Monitor ....................................................................................................................22
The Modem Doesn’t Work with Caller ID ............................................................................................................22
Fax and Data Software Can’t Run at the Same Time ...........................................................................................22
Voice Functions Don’t Work.................................................................................................................................22
Voice Mail Test...............................................................................................................................................23
Loopback Test................................................................................................................................................23
Speakerphone Test (with voice option).........................................................................................................23
Appendix B –Regulatory Compliance..............................................................................................................24
47 CFR Part 68 Telecom .......................................................................................................................................24
47 CFR Part 15 Regulation....................................................................................................................................25
Canadian Limitations Notice ................................................................................................................................25
Industry Canada ...................................................................................................................................................26
EMC, Safety, and R&TTE Directive Compliance ...................................................................................................26
New Zealand Telecom Warning Notice................................................................................................................26
South African Statement......................................................................................................................................27
Thailand Approval ................................................................................................................................................28
Japan Requirements.............................................................................................................................................28
International Modem Restrictions .......................................................................................................................28
Other Countries .............................................................................................................................................28
Waste Electrical and Electronic Equipment Statement .......................................................................................29
WEEE Directive ..............................................................................................................................................29
Instructions for Disposal of WEEE by Users in the European Union .............................................................29
REACH Statement.................................................................................................................................................29
Restriction of the Use of Hazardous Substances (RoHS)......................................................................................30
Information on HS/TS Substances According to Chinese Standards....................................................................31
Information on HS/TS Substances According to Chinese Standards (in Chinese)................................................32
Appendix C –Upgrading Modem Firmware .....................................................................................................33
Checking the Modem Firmware Version..............................................................................................................33
Identifying the Current Firmware Version ...........................................................................................................33
Upgrading Firmware on Windows .......................................................................................................................33
Installing the Flash Wizard Utility ..................................................................................................................33
Extracting the Upgrade Files..........................................................................................................................34
Clearing Your Stored Parameters ..................................................................................................................34
Upgrading the Modem’s Firmware................................................................................................................34
Restoring Your Parameters............................................................................................................................34
Upgrading Firmware on Linux ..............................................................................................................................35
Index .............................................................................................................................................................36

MultiModem ZPX UPCI/PCIe User Guide 5
Chapter 1 –Description and Specifications
Product Description
The MultiModem ZPX V.92 internal modem provides high-speed data transfer and fax capabilities. The
MT9234ZPX-UPCI is a universal PCI bus card that operates in either a 3.3 or 5V slot. The MT9234ZPX-PCIE is a PCI
Express bus card that operates in a 3.3V slot.
It includes a built-in processor to enhance performance and data throughput. The MultiModem ZPX is compatible
with the ITU-T V.92 protocol that provides quick connections, downstream transmissions at speeds up to 56K
bps*, and upstream transmissions speeds up to 48K bps when connected to V.92-compatible Internet Service
Providers. Upstream transmissions and transmissions between client modems are limited to 33.6 Kbps. Upstream
transmissions to non-V.92-compatible ISPs and downstream transmissions that are converted more than once on
the telephone line also are limited to 33.6K bps.
Note: Although these modems are capable of 56 Kbps download performance, line impairments, public
telephone infrastructure flaws, and other external technological factors currently prevent connections
from reaching this maximum 56 Kbps speed.
MT9234ZPX-UPCI
MT9234ZPX-PCIe
Package Contents
●One MultiModem
●One RJ-11 phone cable
●One low profile mounting bracket (MT9234ZPX-PCIe models only)
AT and Fax Commands
AT commands and fax commands are published in separate reference guides. To download these documents, go
to http://www.multitech.com/setup/product.go and select your model from the Product drop down list.

Chapter 1 - Description and Specifications
6MultiModem ZPX UPCI/PCIe User Guide
Technical Specifications
Category
Description
Receiver AGC Dynamic Range
43 dB
Data Compatibility
V.92, V.34 enhanced, V.34, V.32bis, V.32, V.22bis, V.22; Bell 212A and 103/113,
V.21 & V.23
Data Format
Serial, binary, asynchronous
Error Correction (ECM)
Data Mode V.44; V.42 LAPM, MNP 2-4
Fax Mode T.30 Annex A & C
Data Compression
V.42bis & MNP Class 5
Fax Compatibility
V.34, V.17, V.29, V.27, & V.21 Ch. 2
Fax Classes
Class 1 &1.0 and Class 2, 2.0 &2.1
Fax Data Rates
33,600; 31,200; 28,800; 26,400; 24,000; 21,600; 19,200; 16,800; 14,400; 12,000;
9600; 7200; 4800; 2400
Fax Compression
MH, MR, MMR
Command Buffer
80 characters
DAA Isolation
1500 Vac
Dimensions
UPCI
PCIe with
Standard Bracket
PCIe with Low Profile
Bracket
6.03” L X 4.76” W
7.13” L x 4.76” W
7.13” L x 3.16” W
15.31 cm L x 12.09 cm W
18.11 cm L x 12.09 cm W
18.11 cm L x 8.02 cm W
Flow Control
XON/XOFF (software), RTS/CTS (hardware)
Frequency Stability
±0.01%
Modes of Operation
Fax online mode; full duplex over dial-up lines; data mode; command mode;
online command mode; V.54 test mode
Operational Temperature
-5 to+60° C (23° to 140°F) humidity range 20–90% (non-condensing)
Storage Temperature
-40 to +85°C (-40° to 185° F)
Power Requirements
3.3 or 5 volt slot (Universal PCI) 3.3 volts (PCI Express)
Voice Compatibility
TAM (Telephone Answering Machine): S-101 AT+V commands (no CODEC for
speakers/microphone interface)
Serial Speeds
Serial port data rates adjustable to 300, 1200, 2400, 4800, 9600, 19,200, 38,400,
57,600, 115,200, and 230,400 bps
Transmit Level
-11 dBm (varies by country setting)
Receiver Sensitivity
-43 dBm under worst-case conditions
Cleaning
No cleaning/washing due to the manufacturing process used to produce this
product.

Chapter 1 - Description and Specifications
MultiModem ZPX UPCI/PCIe User Guide 7
Category
Description
Manufacturing Information
Trade Name: MultiModem®ZPX
Model Number: MT9234ZPX
Registration No: AU7MM01BMT9234SMI
Ringer Equivalence: 0.1B
Modular Jack (USOC): RJ11
Approvals
CE Mark
Telecom
47CFR Part 68
CS03/
TBR21
Safety Certifications
UL/cUL 60950-1
EN60950-1
AS/NZS 60950:2000
CCC
EMC Approvals
FCC Part 15, Class B
ICES-003, Class B
EN 55022, Class B
EN 55024

8MultiModem ZPX UPCI/PCIe User Guide
Chapter 2 –Windows Installation
Use the procedures in this chapter to install Windows drivers before you install modem into a PCI slot.
Note: The drivers are the same for the MT9234ZPX-UPCI and the MT9234ZPX-PCIE Express products.
After you install the drivers and hardware, you may need to configure the modems for your country/region. The
procedure for doing this is in Chapter 5 –Configuring the Modem for Your Country.
Downloading the Windows Drivers
Note: Drivers for all Windows operating systems are included in the same zip.
1. Login as an administrator. Installing a device driver modifies your system. For this reason, you must have
administration rights to install the driver. If you do not have administrator rights, find someone in your
organization with this authorization.
2. Go to the Multi-Tech Installation Resources website at http://www.multitech.com/setup/product.go and
select your model from the Product drop down list.
3. Click Drivers.
4. Click the link for the Windows drivers.
5. Open the zip file and extract the files to a folder in your Program directory.
Note: To select the correct drivers, you will need to know if you have a 32-bit or 64-bit operating system. If you
do not know which version you have, Microsoft’s Knowledge Base has steps for identifying the version.
Using the Windows Installer
1. Open the folder where you extracted the zip files.
2. Double-click Drivers and then double-click the folder for your operating system. Options are:
●Win32bit-Vista-2008-Win7
●Win32bit-XP-2003
●Win64bit-amd-Vista-2008-Win7
●Win64bit-amd-XP-2003
●Win64bit-ia-Vista-2008-Win7
●Win64bit-ia-XP-2003
3. Double-click dpinst.exe to run Device Installer.
4. Click Yes when prompted to confirm that you want to run the file.
5. Click Next to start the driver installation.
6. Click Continue Anyway each time you are shown the Windows Logo testing window.
7. Click on the Finish button. Your driver installation is complete.
8. If you have not already done so, you can now shut down the PC, unplug the power cord and physically install
your card per the instructions found in Chapter 3 –Hardware Installation.

Chapter 3 –Hardware Installation
MultiModem ZPX UPCI/PCIe User Guide 9
Chapter 3 –Hardware Installation
Safety Notices
Analog Telecom Safety Warnings
Before servicing, disconnect this product from its power source and telephone network. Also:
●Never install telephone wiring during a lightning storm.
●Never install a telephone jack in wet locations unless the jack is specifically designed for wet locations.
●Use this product with UL and cUL listed computers only.
●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 may be a remote risk of electrical shock from
lightning.
●Do not use a telephone in the vicinity of a gas leak.
CAUTION: To reduce the risk of fire, use only 26 AWG or larger UL Listed or CSA Certified telecommunication
line cord.
Avertissements de sécurité télécom analogique
Avant de l'entretien, débrancher ce produit de son réseau d'alimentation et de téléphone. également:
●Ne jamais installer du câblage téléphonique pendant un orage électrique.
●Ne jamais installer de prises téléphoniques à des endroits mouillés à moins que la prise ne soit conçue pour
de tels emplacements.
●Utilisez ce produit avec UL et cUL ordinateurs répertoriés seulement.
●Ne jamais toucher fils ou des bornes téléphoniques non isolés à moins que la ligne téléphonique n'ait été
déconnectée au niveau de l'interface réseau.
●Faire preuve de prudence au moment d'installer ou de modifier des lignes téléphoniques.
●Éviter d'utiliser le téléphone pendant un orage électrique. Il peut y avoir un risque de choc électrique causé
par la foudre.
●N'utilisez pas un téléphone à proximité d'une fuite de gaz.
ATTENTION: Pour réduire les risques d’incendie, utiliser uniquement des conducteurs de télécommunications 26 AWG au
de section supérleure.
TNV Circuit Safety
To protect against accidental contact, the TNV circuit has a protective cover that is fastened to the modem card
and requires a tool for removal.
WARNING: Removing the protective cover affects product and user safety.

Chapter 3 - Hardware Installation
10 MultiModem ZPX UPCI/PCIe User Guide
TRT Circuit sécurité
Pour se protéger contre les contacts accidentels, le circuit TNV a un couvercle de protection qui est fixée sur la carte de
modem et nécessite un outil pour l'enlèvement.
AVERTISSEMENT: Enlever le couvercle de protection affecte la sécurité des produits et sécurité de l'utilisateur.
Installing your MultiModem
Note: If you are using Windows, use Windows Installer to install drivers before installing the MultiModem into a
PCI slot. Refer to Chapter 2 –Windows Installation for more information.
If you are using Linux, install the hardware and then install the drivers. Refer to Chapter 4 –Linux
Installation for more information.
To install the card into your PCI-bus computer, follow the steps presented below.
1. Turn off your computer.
2. Remove the power cord and any peripheral equipment connected to the computer. Failing to do so may
damage both the MultiModem and your system. Do not power up the system until instructed to do so.
3. Remove the cover of your computer as instructed in your computer’s documentation.
Before handling the MultiModem, discharge any static in your body by touching a piece of
grounded metal such as the computer chassis. Electrostatic discharge (ESD) is the release of
stored static electricity that can damage electrical circuitry or components. Static electricity
is often stored in your body and discharged when you come in contact with an object of a
different potential.
Perform the procedure described in this section only at an ESD workstation using an
antistatic wrist strap. If such a station is not available, you can provide some ESD
protection by wearing an antistatic wrist strap and attaching it to a metal ground
screw (lug).
4. Carefully remove the card from its antistatic bag. Handle it only by the mounting bracket and edges. Do not
touch the gold-plated connectors along the bottom edge. (You may want to save packaging for possible future
use.)
5. Remove the slot cover for the unused PCI slot where you will install the MultiModem. Retain the screw. Refer
to your computer’s manual for instructions on removing the slot cover.
6. If installing a MT9234ZPX-PCIe in a low profile machine, you will need to change the mounting bracket to the
low profile mounting bracket that shipped with your card.

Chapter 3 –Hardware Installation
MultiModem ZPX UPCI/PCIe User Guide 11
7. Install the card into the selected expansion slot in the same manner as any other add-on card. Refer to your
computer’s manual for instructions on adding cards. The card’s retaining bracket should be flush against the
system chassis.
8. Fasten the retaining bracket to the computer chassis with the screw you removed from the slot cover and
replace cover on the computer.
Cabling Your Modem
Connecting the Modem to the Phone Line
The only required connection is between the modem and a phone line. To connect the modem to the phone line:
1. Plug one end of the phone cable into the modem’s LINE jack.
Note: The LINE and PHONE jacks are not interchangeable. Do not plug the phone into the LINE jack or the line
cable into the PHONE jack.
2. Plug the other end into a phone wall jack.
Note: The Federal Communications Commission (FCC) and Industry Canada impose certain restrictions on
equipment connected to public telephone systems.
Changing the Voice Jumper
The speaker jumper is next to the external speaker jack.
●The factory default position of the voice jumper is set for a stereo speaker or sound card. A jumper plug
covers both pins of the jumper. 
●To use the modem with a monophonic external speaker, remove the jumper plug from the jumper pins. You
can store it by placing it on one jumper pin. 
Connecting a Phone (Optional)
To use a phone on the same line as the modem:
Plug the phone cord into the modem’s PHONE jack.
Note: The LINE and PHONE jacks are not interchangeable. Do not plug the phone into the LINE jack or the line
cable into the PHONE jack.
Connecting a Microphone and Headphone (Optional)
LINE
MIC
LINE
PHONE
Optional Voice
MIC IN
LINE OUT
PHONE
LINE

Chapter 3 –Hardware Installation
12 MultiModem ZPX UPCI/PCIe User Guide
To use your modem with voicemail, connect it to a microphone and external speaker, headphone or sound card.
You can use the microphone to record voicemail messages and with a speakerphone. Use the speaker or
headphone to play back messages or as a speakerphone.
Use an unamplified microphone and headphone with a stereo 3.58mm (9/64-inch) mini plug. Do not use a
monophonic microphone.
Plug the microphone into the MIC jack.
Connecting the Sound Card and Speaker (for Voice Option)
For voice mail or speakerphone applications, use a 3.58mm (9/64-inch) plug male-to-male stereo patch cord to
connect the LINE OUT jack on the modem to the LINE IN jack on your sound card. If your sound card does not
have a LINE IN jack, use its MIC jack.
This allows you to hear modem activity whether it is originating or answering a call, or playing a recorded
message. If you do not have a sound card, you can plug an amplified speaker into the LINE OUT jack.

MultiModem ZPX UPCI/PCIe User Guide 13
Chapter 4 –Linux Installation
Linux uses a native driver contained in the kernel with MultiModem ZPX modems.
Verifying that Linux Detected the Modem
When using your modem with Linux kernel 2.6.xx, install the hardware and then verify if Linux can detect it. To
verify that the Linux detected the modem:
1. Logon to the system as root.
2. Send uname -a to check with kernel version is running. Linux returns a response similar to:
[root@armadillo ~]# uname -a
Linux armadillo.net 2.6.18-8.el5 #1 SMP Thu Mar 15 19:57:35 EDT 2007 i686 i686 i386
GNU/Linux
This example shows a system running kernel 2.6.18-8.el5.
Identifying Ports
When Linux detects the modem, it assigns two new ports to the system. Only the first COM port is used to access
the modem. If you use the second port, the modem will not respond to AT commands.
To see how many ports the system detected on boot
1. Send dmesg |grep -i tty. Linux returns a response similar to:
[root@armadillo ~]# dmesg |grep -i tty
serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
00:0f: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
0000:03:00.0: ttyS0 at MMIO 0xcdeffc00 (irq = 169) is a 16550A
0000:03:00.0: ttyS2 at MMIO 0xcdeffe00 (irq = 169) is a 16550A
Bluetooth: RFCOMM TTY layer initialized
Linux labels the ports assigned to your modem as follows. Note that the IRQ and the I/O address might be
different in your system.
0000:03:00.0: ttyS0 at MMIO 0xcdeffc00 (irq = 169) is a 16550A
0000:03:00.0: ttyS2 at MMIO 0xcdeffe00 (irq = 169) is a 16550A
2. Record the port label information.
Verifying that the Modem Works
To confirm if the modem works, use the Linux minicom terminal emulation
1. Enter minicom -s to bring the minicom into configuration mode. The returned response will be similar to:
[root@armadillo ~]# minicom -s
minicom: WARNING: configuration file not found, using defaults

Chapter 4 - Linux Installation
14 MultiModem ZPX UPCI/PCIe User Guide
Configuration
Filenames and paths
File transfer protocols
Serial port setup
Modem and dialing
Screen and keyboard
Save setup as dfl
Save setup as..
Exit
Exit from Minicom
2. From the Configuration menu, select Serial Port Setup and press Enter to display Serial port settings.
A - Serial Device : /dev/modem
B - Lockfile Location : /var/lock
C - Callin Program :
D - Callout Program :
E - Bps/Par/Bits : 38400 8N1
F - Hardware Flow Control : Yes
G - Software Flow Control : No
Change which setting?
3. Enter Ato edit the Serial Device.
4. Enter information for first port identified earlier. Remember you can only use the first port. For example,
0000:03:00.0: ttyS0 at MMIO 0xcdeffc00 (irq = 169) is a 16550A.
A - Serial Device : /dev/ttyS0
B - Lockfile Location : /var/lock
C - Callin Program :
D - Callout Program :
E - Bps/Par/Bits : 38400 8N1
F - Hardware Flow Control : Yes
G - Software Flow Control : No
Change which setting?
5. Press Enter to accept the change. You can change other settings; however, the modem should respond with
default settings in the other fields.
6. Press Enter again to return to the Configuration menu.
Configuration
Filenames and paths
File transfer protocols
Serial port setup
Modem and dialing
Screen and keyboard
Save setup as dfl
Save setup as..
Exit
Exit from Minicom
7. Select Exit and press Enter to go into minicom terminal mode. The response will be similar to:
Welcome to minicom 2.1
OPTIONS: History Buffer, F-key Macros, Search History Buffer, I18n
Compiled on Jan 7 2007, 04:48:39.

Chapter4 –Linux Installation
MultiModem ZPX UPCI/PCIe User Guide 15
8. Press CTRL-A Z for help on special keys.
9. Query the modem with the model number by sending Ati or ATi3. The modem will respond as follows:
ati
Agere OCM V.92 MT9234ZPX-UPCI Internal Data/Fax/Voice Modem Version 1.02b
OK
This verifies that the modem is present and operational in the system.
10.Press CTRL +A Z X to exit minicom.
After verifying that the modem is operating, you can use any communication software to access the modem.
Linux provides documentation for configuring the communication software included with the operating system.

16 MultiModem ZPX UPCI/PCIe User Guide
Chapter 5 –Configure the Modem for Your
Country
Different countries have different requirements for how modems must function. Before you use the modem, you
must configure it for the country in which you are using it. There are two ways to configure your modem:
●Global Wizard for Windows users
●AT Commands for Linux users
Installing the Global Wizard
1. Go to http://www.multitech.com/setup/product.go and select your model from the Product drop down list.
2. Click Software.
3. Click Global Wizard link.
4. Click Run twice. The Global Wizard installer launches.
5. Click Next , Yes, and Next again.
6. Click Finish. This completes the Global Wizard installation.
Using the Global Wizard
1. Click Start | All Programs |Global Wizard and select Global Wizard. The Global Wizard opens.
2. Click Next. The Global Wizard searches for your modems and identifies them.
3. Click Next. Select a modem to configure.
4. Click Next.
5. Select the country in which the modem will be used and click Next.
6. Review your choice of country. If it is correct, click Next to configure the modem.
7. When Global Wizard announces that the parameters have been set, click Finish to exit.
Using AT Commands to Configure Your Modem
If you aren’t using Windows, use AT commands to configure the modem. A complete list of country and region
codes is available on the Multi-Tech site at http://www.multitech.com/global/configuration.go.
1. Run your favorite communication program and open the windows terminal window.
2. Type AT%T19,0,nn, where nn is the country/region code in hexadecimal format, click ENTER. OK appears.
3. Type ATI9 and click ENTER to verify the change.
The country code displays in decimal format, as in this example:
Country/Region
AT Command
Country code
(decimal)
(hexadecimal)
Euro/NAM
AT%T19,0,34 (default)
52

MultiModem ZPX UPCI/PCIe User Guide 17
Chapter 6 –Remote Configuration
Remote configuration allows you to configure your modem anywhere in your network from one location. With
password-protected remote configuration, you can issue AT commands to a remote modem for maintenance or
troubleshooting as if you were on site.
Configuring a Remote Modem
Use the following steps when you have established a connection by the local or the remote modem.
Note: The remote computer must be running and a communication program must be ready for a data
connection.
1. Establish a data connection with the remote modem.
2. Send three remote configuration escape characters followed by AT and the setup password, and press Enter.
For example, %%%ATMTSMODEM.
You have four tries to enter the correct password before being disconnected. If the password is correct, the
remote modem responds with OK.
3. Send AT commands to configure the remote modem. Refer to the AT Command Guide for more information.
4. Save the new configuration by typing AT&W0 and pressing Enter.
5. Type ATO and press Enter to exit remote configuration. You can now break the connection in the normal way.
Changing the Setup Password
Multi-Tech modems are shipped with a default setup password (MTSMODEM). Because anyone who has the User
Guide knows the default setup password, you should change the password.
1. Open a data communications program such as HyperTerminal.
2. Type AT#SMTSMODEM (or AT#Sxxxxxxxx if you have replaced the MTSMODEM password with xxxxxxxx) and
press Enter. The modem responds with OK if the setup password is correct and ERROR if it is wrong.
3. Type AT#S=xxxxxxxx, where xxxxxxxx stands for the password, and then press Enter. The password can
include any keyboard character, and can be up to eight characters long. The modem responds with OK. The
new password is saved automatically.
Caution: Passwords are case-sensitive.

Chapter 6 –Remote Configuration
18 MultiModem ZPX UPCI/PCIe User Guide
Changing the Remote Escape Character
To further improve security, you can change a remote modem’s remote configuration escape character either
locally or remotely. The remote configuration escape character is stored in register S9. The factory default is 37,
which is the ASCII code for the percent character (%). Setting S9 to 0 (zero) disables remote configuration entirely.
Caution: If you change the S9 to 0 remotely, you won’t be able to change it back remotely.
1. Establish a remote configuration link with the remote modem as described in Configuring a Remote Modem.
2. Type ATS9=n, where nis 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 and press Enter to exit remote configuration.

MultiModem ZPX UPCI/PCIe User Guide 19
Appendix A –Troubleshooting
If your modem is not operating correctly, check the following before contacting Technical Support.
●Modem does not respond to commands
●Modem cannot connect when dialing
●Modem disconnects while online
●Modem cannot connect when answering
●File transfer is slower than it should be
●Data is being lost
●Garbage characters on the monitor
●The modem doesn’t work with Caller ID
●Fax and data software can’t run at the same time
●Voice functions don’t work
Modem Does Not Respond to Commands
1. Verify that you are sending commands through data communications software, either manually in terminal
mode or automatically by configuring the software. You cannot send commands to the modem from the DOS
prompt.
2. Verify you are in terminal mode in your data communications program, then type E1 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 communications software.
●If you don’t get an OK,confirm that your port is properly configured the port through your
communications program. Some communications programs disconnect without exiting the program. If
this is the case, try issuing the software’s connection command. If more than one communications
program is open, they may conflict with each other. Make sure all other communications programs are
closed, and then try to make the connection again.
3. Make sure the COM port you chose during setup matches the COM port set in your communications software.
4. Another expansion card, such as a sound or game card, might use the same COM port, memory address, or
interrupt request (IRQ) as your modem. Look for conflicts with other devices installed on your computer.
Resources are assigned at power-up by the computer’s BIOS. If the resources assigned to the MultiModem
conflict with the resources of another device, change the resources of the second device. Change the port
used by the conflicting device to resolve the conflict. Refer to the device’s documentation to determine if you
need to change switches or jumpers on the conflicting device.
5. If you have another Multi-Tech modem, try swapping modems. If the problem goes away, contact Technical
Support at https://support.multitech.com for assistance.

Appendix A - Troubleshooting
20 MultiModem ZPX UPCI/PCIe User Guide
Modem Cannot Connect When Dialing
There can be several reasons the modem fails to make a connection. Possibilities include:
●no physical connection to a phone 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
●poor line conditions
Use extended result codes to narrow the list. 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 phone line cable is connected to both the
modem’s LINE jack (not the PHONE jack) and the phone wall jack. If the cable looks secure, try replacing it. If
that doesn’t work, the problem might be in your building’s phone installation. To test the building installation,
plug a phone into your modem’s phone 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.
●If the modem reports BUSY, the other number might be busy, in which case you should try again later.
However, it might indicate that you have failed to add a 9, the prefix to the phone number if you must dial 9
for an outside line.
●If you must dial 9, include it in the modem’s dial prefix to dial it automatically, for example,
ATDT9, (note the comma, which inserts a pause before the number is dialed). If you insert the 9, into the
dial prefix, you do not have to include it in each directory entry.
●To change the dial prefix in 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 there is no answer on the remote end, the modem reports NO CARRIER. You might have dialed a wrong
number and a person answered 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. Try calling the number on your phone. 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.
●Poor line conditions can affect the connection. When using V.34 or V.32 client-to-client connections in poor
conditions, setting S38=0 may result in better performance.
Modem Disconnects While Online
●If you are not using modem on hold, call waiting can interrupt your connection when someone tries to call
you. If you have call waiting service, disable it before each call. In most phone areas in North America, you can
disable call waiting by preceding the phone number with *70 (verify this value with your phone company).