Multi Tech Systems Modem MT5634ZPX PCI User Manual

Model MT5634ZPX-PCI  
Internal Data /Fax Modem  
Owner’s Manual  
 
Contents  
Chapter 1—Introduction and Description  
Congratulations ..................................................................................... 6  
Features ................................................................................................. 7  
Peripiheral Component Interconnect (PCI) .......................................... 8  
V.90 Support/Functions......................................................................... 9  
What is in Your Modem Package? ...................................................... 10  
How to Use This Manual .....................................................................11  
Typographic Conventions ................................................................... 12  
Chapter 2—Installation  
Introduction ......................................................................................... 14  
What You’ll Need ................................................................................ 14  
Safety Warnings .................................................................................. 15  
Installation Overview .......................................................................... 15  
Configuring the MultiModem ZPX-PCI ............................................. 16  
Installing the MultiModemZPX-PCI .................................................. 17  
External Connections .......................................................................... 18  
Installing Drivers................................................................................. 19  
Verifying Configuration ............................................................... 19  
To Remove Previous Modem from Windows 95 ........................ 21  
Is Your MultiModemZPX-PCI Ready for Use? ................................. 21  
Operating Your MultiModemZPX-PCI .............................................. 22  
Simple Operation ......................................................................... 22  
Software Configuration ................................................................ 23  
Testing Data Functions ................................................................ 23  
Testing FAX Functions ................................................................ 25  
Testing Voice Function................................................................. 26  
MultiModemZPX-PCI’s Speakerphone Test ............................... 27  
Configuring Communications Software.............................................. 28  
Chapter 3—AT Commands, S-Registers, and Result Codes  
Introduction ......................................................................................... 34  
AT Commands ..................................................................................... 34  
S-Registers .......................................................................................... 45  
Result Codes........................................................................................ 49  
 
Chapter 4—Troubleshooting  
Introduction ......................................................................................... 52  
Initial Checklist ............................................................................ 52  
Common Problems....................................................................... 53  
The modem does not respond to commands ............................... 53  
The modem dials but cannot make a connection ......................... 55  
The modem disconnects while online .......................................... 56  
The modem cannot connect when answering .............................. 57  
File transfer appears slower than it should .................................. 57  
Data is being lost.......................................................................... 58  
There are garbage characters on the monitor .............................. 58  
Fax and data software won’t run at the same time....................... 58  
Chapter 5—Warranty, Service, and Tech Support/BBS  
Introduction ......................................................................................... 60  
Limited Warranty ......................................................................... 60  
Online Warranty Registration ...................................................... 61  
Technical Support ............................................................................... 62  
Recording Modem Information ................................................... 62  
Service ................................................................................................. 63  
The Multi-Tech BBS ........................................................................... 64  
About CompuServe ............................................................................. 66  
About the Internet ............................................................................... 66  
About the Multi-Tech Fax-Back Service ............................................ 66  
Appendix  
Appendix A: Regulatory Compliance ................................................. 68  
Appendix B: Technical Specifications ................................................ 76  
Appendix C: ASCII Conversion Chart................................................ 80  
Appendix D: FLASHWINFlash Upgrade........................................... 81  
Index  
............................................................................................................. 84  
 
Chapter 1—Introduction  
and Description  
 
Owner’s Manual  
ongratulations on your purchase of one of the finest internal  
C
data/fax/voice modems available today—the MultiModemZPX-PCI  
from Multi-Tech Systems.  
The MultiModemZPX-PCI is an internal, half-length, fax modem card  
that can be plugged into any PCI slot. Your MultiModemZDX-PCI  
incorporates V.90/K56flexTM modem technology, which enables  
Internet connections at data rates up to 56 Kbps over standard  
telephone lines. V.90/K56flex technology is able to propel data  
downstream from the Internet to your computer at speeds of up to 56  
Kbps because data is digitally encoded instead of modulated. Upstream  
transmission, mostly keystroke and mouse commands from your  
computer to the central site, continues to flow at the conventional data  
rate of 33.6 Kbps.  
Note: Though this modem is capable of 56 Kbps download  
performance, line impairments, public telephone infrastructure, and  
other external technological factors currently prevent maximum  
56 Kbps connections.  
Your MultiModemZPX-PCI offers interactive automatic dialing, as  
well as command mode option configuration. You can store two  
command line/telephone numbers, of up to 40 characters each, in the  
modem’s nonvolatile memory. The modem pulse or tone dials and  
recognizes dial tones and busy signals for reliable call-progress  
detection. The modem can detect AT&T calling card tones. It is FCC-  
Registered for connection to telephone networks without any Data  
Access Arrangements (DAAs).  
The MultiModemZPX-PCI is a full-featured internal data/fax/voice  
modem designed for Pentium computers in Windows Plug and PlayTM  
environments.  
This owner’s manual will help you to install, configure, use, and  
troubleshoot your modem.  
6
MT5634ZPX-PCI  
 
1 Introduction and Description  
Features  
• Compliance with major ITU-T, TIA, and EIA international standards  
to ensure compatibility with other modems  
• Distinguishes data, fax, and voice calls  
• Easy Windows 95 Plug and Play (PnP)  
• Compliance with the V.80 standard, allowing video conferencing  
over analog telephone lines with any H.324 video phone system  
Data  
• Supports V.90/K56flexTM for data transmission speeds up to  
56 Kbps while maintaining compatibility with lower-speed modems  
Note: The V.90/K56flex standard asymmetrically transfers data—  
client downloads at speeds up to 56 Kbps; client uploads at speeds  
up to 33.6 Kbps.  
• Supports the enhanced ITU-T V.34 standard with data transmission  
speeds to 33.6 Kbps while also maintaining compatibility with  
lower-speed modems  
• Supports V.90/K56flex speeds plus 33.6K, 31.2K, 28.8K, 26.4K,  
24K, 21.6K, 19.2K, 16.8K, 14.4K, 12K, 9.6K, 7.2K, 4.8K, 2.4K,  
1.2K, and 0–300 bps.  
• Automatic fallback to slower speeds in noisy line conditions and  
fall-forward to faster speeds as conditions improve (line quality  
monitoring)  
• ITU V.42 LAP-M and MNP Class 3 and 4 error correction  
• ITU V.42bis (4-to-1) and MNP 5 (2-to-1) data compression  
• H.324 compliant (videophone ready)  
• Automatic disabling of compression when transferring already  
compressed files  
• Autodial, redial, pulse (rotary), and touch-tone dial  
• Dial tone and busy signal detection for reliable call-progress  
detection  
• Distinctive ring support to route voice, data, or fax calls on a single  
phone line  
• Plug and Play (PnP) serial support  
MT5634ZPX-PCI  
7
 
Owner’s Manual  
• FlashROM upgradable  
• Compatibility with the standard AT command set used by most  
communication programs  
• Stores up to two telephone numbers  
Fax  
• Supports V.17, Group 3 fax communication standards, allowing it to  
communicate with other fax modems as well as with fax machines  
• Responds to Class 1 and Class 2 fax commands, enabling it to  
exchange editable and encrypted faxes with other Windows 95  
computers  
• Sends and receives faxes from your computer at 14,400 bps, 9600  
bps, 7200 bps, 4800 bps, 2400 bps, or 300 bps  
Voice  
• Full duplex speakerphone support with adjustable speaker volume  
control; can record and play back answering machine messages  
using optional microphone and speaker  
• Remote/local telephone answering machine (TAM) capabilities  
include voice mail control, record/playback, and call screening  
• Supports the TIA/EIA IS-101 AT+V voice command set.  
Peripiheral Component Interconnect (PCI)  
First developed by companies such as IntelTM, AT&TTM and Digital  
Equipment CorporationTM, the Peripheral Component Interconnect  
(PCI) bus used by your MT5634ZPX-PCI provides high performance  
and is easy to use. Because PCI devices contain registers with the  
device information required for configuration, full auto configuration  
of PCI Local Bus add-in boards and components is supported.  
Performance factors include a bus data path of 64 bits, clock speeds of  
66 MHz, and bandwidth of 264 Mbs.  
8
MT5634ZPX-PCI  
 
1 Introduction and Description  
V.90 Support/Functions  
V.90 is the ITU designation for what formerly was called V.pcm. V.90  
replaces K56flex and other proprietary solutions for PCM connections.  
Dual-mode client modem code will be important until all central-site  
digital modems are upgraded to V.90 and all interoperability problems  
are resolved. Until that time, the Dual-mode client code provides  
reliable connections in K56flex mode to the central-site modems  
currently deployed. V.90 functions/features include:  
• V.90/K56flex A-law and µ-law support  
• New downstream data rates (S-Register S38)  
• Optional V.8bis sequence  
• V.90 Mode Selection (S-Register S109) support  
• Auto-rate speeds to 50,666 (downstream) support  
• Automatic adapting to digital loss and robbed-bit signaling  
• New V.90 rate result codes  
Downstream Rates  
Where K56flex provided rates of 32,000 to 56,000 in 2,000 bps  
increments, V.90 provides rates of 28,000 to 56,000 bps in increments  
of 1,333 bps.  
Upstream Data Rates  
Upstream V.90 data rates are 4800 to 33600 bps in 2400 bps  
increments.  
Optional V.8bis Sequence  
The V.8bis sequence that precedes K56flex connections is optional for  
V.90. Dual-mode servers indicate this capability using V.8bis. Dual-  
mode clients complete the V.8bis exchange and then proceed to either  
the K56flex mode or V.90 mode. V.90-only clients can skip the V.8bis  
exchange as a way to shorten the startup time.  
Auto-rate Speeds  
Auto-rate speeds to 50,666 Kbps are supported for downstream  
transfers.  
MT5634ZPX-PCI  
9
 
Owner’s Manual  
Digital Loss and Robbed-bit Signaling Auto Adapt  
Version 4.09 code supports the modem’s ability to automatically adapt  
to digital loss and robbed-bit signaling on a PSTN connection.  
What is in Your Modem Package?  
Your MultiModemZPX-PCI package should contain:  
• One MultiModemZPX-PCI internal fax modem card  
• One MultiModemZPX-PCI drivers disk  
• One telephone cable  
• Communications software  
• One brochure with a warranty card  
• This MultiModemZPX-PCI Owner’s Manual  
If any one of these items is missing, please contact Multi-Tech Systems  
or your dealer/distributor.  
10  
MT5634ZPX-PCI  
 
1 Introduction and Description  
How to Use This Manual  
Chapter 1: Introduction and Description. Introduces the  
MT5634ZPX-PCI, briefly describing features and package contents. It  
also details the typographic conventions used in this manual.  
Chapter 2: Installing Your Modem. Describes how to install the  
modem in your computer and connect it to a telephone, telephone line,  
microphone, and speaker. It also describes how to install the modem’s  
drivers in Windows 95. In this chapter are several tests to confirm that  
your installation is working correctly. The tests, which include step-by-  
step instructions for downloading a file and sending a fax, also serve as  
minitutorials for those new to online communications concepts.  
Chapter 3: Controlling Your Modem. Contains descriptions of  
the AT commands that control your modem, S-registers that affect how  
the commands work, and result codes that provide you with operational  
feedback.  
Chapter 4: Troubleshooting. Describes common problems you  
may have with your modem and how to solve them.  
Chapter 5: Warranty, Service, and Technical Support.  
Contains terms of your warranty and describes how to get help from  
Multi-Tech Systems for problems you cannot resolve. It includes our  
technical support phone number and how to access us through our  
BBS, the Internet, CompuServe, and our fax-back service.  
Appendix  
Appendix A: Regulatory Information  
Appendix B: Technical Specifications  
Appendix C: ASCII Conversion Chart  
Appendix D: FLASHWIN Upgrade Procedures  
MT5634ZPX-PCI  
11  
 
Owner’s Manual  
Typographic Conventions  
This manual uses the following typographic conventions:  
You type this  
Text entered by you is shown in boldface. Spell the entry  
exactly as shown, using upper and/or lower case type.  
However, when you see <cr>, press the ENTER key; do  
not spell it as shown.  
AT command  
Bold, italicized type is used for an AT or S-register  
command but only when we do not intend you to type it.  
Screen message  
KEYBOARD KEY  
<Function Key>  
Italics are used for screen messages in addition to  
conventional uses, such as book and manual titles.  
Names of keyboard keys are shown in all caps (e.g.,  
BACKSPACE).  
Angle brackets indicate a nonliteral entry. For example,  
<cr> represents the carriage return character that is sent  
by the key labeled Enter on most keyboards.  
D:\PATH\FILENAME File name and/or path. In the following example, a  
request for a file path is indicated as:  
D:\PATH\FILENAME  
D is the drive and PATH is the full directory path where  
the file is found.  
ENTER, <CR>  
Instructs you to press the Return, Enter, or Carriage  
Return key (depending on how your keyboard is  
marked).  
ALT+X, CTRL+X  
0, O  
Instructs you to hold down the ALT or CTRL key while  
you press the key represented by X.  
Please note the difference between a zero and the letter  
O. This is a zero: 0. This is a capital O : O.  
12  
MT5634ZPX-PCI  
 
Chapter 2—Installation  
 
Owner’s Manual  
Introduction  
This chapter describes how to install the MultiModemZPX-PCI into  
your computer and the MultiModemZPX-PCI drivers into Windows 95.  
What You’ll Need  
Before you start, make sure you have everything you need:  
Multi-Tech supplies  
• One MultiModemZPX-PCI internal fax modem card  
• One MultiModemZPX-PCI d rivers disk  
• One telephone cable  
• Communications software  
• This MultiModemZPX-PCI Owner’s Manual  
You supply  
• A 100-MHz or faster Pentium PC. We recommend a 166-MHz or  
faster PC for video conferencing.  
• Windows 95 installed  
• A 3.5-inch floppy disk drive  
• An empty PCI expansion slot  
• Tools to open your computer  
• The computer’s manual  
• A nearby telephone line jack  
• An external speaker or headphone (optional)  
• An external microphone (optional)  
14  
MT5634ZPX-PCI  
 
2 Installation  
Safety Warnings  
• Never install telephone wiring during a lightning storm.  
• Never install telephone jacks in wet locations unless the jack is  
specifically designed for wet locations.  
• This product is to be used with UL and CUL listed computers.  
• 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 (other than a cordless type) 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.  
Installation Overview  
Installing the MultiModemZPX-PCI consists of three steps:  
1. Installing the modem in the computer  
2. Connecting the modem to the telephone line and, optionally, to an  
external speaker and microphone  
3. Installing the modem’s drivers  
Figure 2-1. MultiModemZPX-PCI  
MT5634ZPX-PCI  
15  
 
Owner’s Manual  
Configuring the MultiModem ZPX-PCI  
Windows 95 Plug and Play  
Unlike an external modem, the MultiModemZPX-PCI contains its own  
serial port. When Windows 95 detects the MultiModemZPX-PCI, it  
assigns the next available COM port number to it. Since COM1  
through COM4 are standard serial ports in Windows computers,  
Windows 95 typically assigns COM5 to the modem’s serial port.  
Windows 95 also assigns the a port address and interrupt request (IRQ)  
number. Because the number of IRQs is limited, a computer with  
several accessories may not have an available IRQ for your new  
modem. In that case, you may have to decide which of your other  
accessories you can modify or do without.  
Sound Card Considerations  
If you want speakerphone functions and the ability to record sound or  
.WAV files through the sound card at the same time, you need:  
• Two stereo PC microphones  
• One stereo male-to-male patch cord  
• One sound card and optional speakers  
To connect a third party sound card:  
1. Obtain a stereo male-to-male patch cord (can be purchased at a  
local PC retail store).  
2. Place one end of a stereo male-to-male patch cord into the LINE  
OUT jack of the MultiModemZPX-PCI and the other end into the  
LINE IN jack of the sound card. This allows you to hear the  
activity of the modem whether it is originating or answering a call  
or playing a recorded message using the bundled Trio software.  
3. Place the stereo microphones (do not use mono microphones) far  
enough apart from each other to eliminate feedback (e.g., one on  
each side of the monitor). Feedback occurs if the microphones are  
too close to each other. Make sure speakers are amplified with  
power source being either a battery or AC outlet.  
4. Place microphone and speakers far enough apart from each other  
to eliminate feedback. Plug connector of both microphones into  
the MIC IN jack of the SoundCard and the MultiModemZPX-PCI.  
16  
MT5634ZPX-PCI  
 
2 Installation  
Installing the MultiModemZPX-PCI  
Installating the MultiModemZPX-PCI requires you to open your  
computer. Please consult your computer manual in addition to the  
following instructions:  
1. Turn off the computer and unplug it. Failure to do so may result in  
damage to both the MultiModemZPX-PCI and the computer. Do  
not turn on the computer until the instructions tell you to do so.  
2. Remove the cover from the computer as instructed in the computer  
manual.  
3. Select an empty PCI expansion slot. Remove the expansion slot  
cover and save the retaining screw.  
4. Before handling the MultiModemZPX-PCI, discharge static in  
your body by touching a metal piece of the computer chassis.  
Carefully remove the MultiModemZPX-PCI from its antistatic  
bag, handling it only by the mounting bracket and edges. Do not  
touch the gold-plated connectors along the bottom edge.  
5. Place the MultiModemZPX-PCI directly above the expansion slot  
and gently, but firmly, push it into the connector until the card’s  
retaining bracket is flush against the computer chassis.  
6. Fasten the retaining bracket to the computer chassis with the screw  
saved in step 3.  
7. Replace the cover of the computer.  
MT5634ZPX-PCI  
17  
 
Owner’s Manual  
External Connections  
The MultiModemZPX-PCI communicates over public-switched  
telephone network lines. Use the modular telephone cable provided  
with the modem to connect the MultiModemZPX-PCI to your  
telephone wall jack. If you don’t have a standard modular wall jack  
near your computer, install one or have one installed for you by your  
telephone company. In the U.S., installation kits and adapters are  
available wherever telephones are sold.  
If you want, you can use a microphone and speaker with the  
MultiModemZPX-PCI. The microphone can be used for recording  
answering machine messages or for speakerphone use. The speaker can  
be used for playing back messages or for speakerphone use.  
1. Plug one end of the supplied modular  
telephone cable into the LINE jack.  
2. Plug the other end of the phone cable  
into a working wall jack.  
3. To connect a telephone to your modem,  
plug the telephone’s line cable into the  
PHONE jack.  
PHONE  
LINE  
4. To use a microphone and/or speaker  
with the modem, insert the microphone  
plug into the MIC IN jack.  
5. To connect a speaker or headphone,  
insert the speaker or headphone plug  
into the LINE OUT jack.  
MIC IN  
LINE OUT  
18  
MT5634ZPX-PCI  
 
2 Installation  
Installing Drivers  
1. Plug in and turn on your computer. As your computer boots, it  
automatically detects the MultiModemZPX-PCI, and the New  
Hardware Found dialog box appears.  
2. In the New Hardware Found dialog box, select Driver from  
disk provided by hardware manufacturer (default selection).  
Then click OK. The Install from Disk dialog box appears.  
3. Insert the MultiModemZPX-PCI Drivers diskette into the  
computer’s drive, select the drive letter (A:\ is the default), and  
click OK. The computer installs the software drivers needed to  
communicate with your MultiModemZPX-PCI and then displays  
the Windows 95 desktop.  
4. Installation of the MultiModemZPX-PCI is complete. If you plan  
to use the provided communications software, install it now  
according to the instructions provided in your corresponding  
software manual.  
Verifying Configuration  
Windows 95 Plug and Play  
Use the following procedure to check the assignments Windows has  
made for your modem:  
1. Click Start, Settings, Control Panel, and then double-click the  
System icon.  
2. When the System Properties dialog box appears, click the Device  
Manager tab. A list of device types appears.  
3. Double-click Modem for a list of modems installed in your  
computer.  
4. Double-click Multi-Tech MT5634ZPX-PCI. The Modem  
Properties dialog box for your MultiModemZPX-PCI model  
appears.  
MT5634ZPX-PCI  
19  
 
Owner’s Manual  
5. Click the Resources tab and note the Conflicting Device list. If  
there is a conflict between your modem and another device in your  
computer, the information appears here. For help in resolving a  
conflict, click Start, Help, and then search the Help index for the  
Hardware Conflict Troubleshooter. When finished, click OK to  
exit the System Properties dialog box.  
6. In Control Panel, double-click the Modems icon.  
7. When the Modems Properties dialog box appears, click the  
Diagnostics tab. A list of ports and the devices installed on  
them appears.  
8. Click the COM port where the Multi-Tech MT5634ZPX-PCI is  
installed. Then click More Info to make sure Windows 95 can  
communicate with the modem. Clicking More Info causes  
Windows 95 to send commands to and receive responses from the  
modem and to display information about the modem’s COM port.  
9. Write down the modem’s port, interrupt, address, and highest  
speed. You will need this information to set up any legacy  
(nonWindows 95) communications software you install.  
Port: COM ______ Interrupt:_______ Address:_______  
Speed: _______  
10. Click the General tab. Select Multi-Tech MT5634ZPX-PCI and  
click Properties to review the modem’s default communications  
settings. Do not change any settings unless you have special  
requirements.  
11. Click Dialing Properties and review your dialing settings. If you  
are required to dial 9 to get an outside line, type 9 in the local and  
long distance boxes. If you have call waiting service, disable it to  
prevent it from interrupting a data or fax transmission. When  
finished, click OK to exit the Modems Properties dialog box..  
20  
MT5634ZPX-PCI  
 
2 Installation  
To Remove Previous Modem from Windows 95  
If your MultiModemZPX-PCI replaces another modem, the previous  
modem installation remains in Windows even after you install the new  
modem, and the old modem is selected in HyperTerminal and other  
Windows 95 applications. Although you can change the application  
connection descriptions one at a time, it is easier to force Windows 95  
applications to use the MultiModemZPX-PCI by removing the  
previous modem installation from Windows.  
1. Select Start, Settings, and then Control Panel.  
2. Double-click the Modems icon to open the Modems Properties  
dialog box.  
3. In the list box, select the old modem.  
4. Click Remove and then click Close.  
5. The next time you dial a HyperTerminal connection, it selects  
your new modem and asks you to confirm the selection.  
Is Your MultiModemZPX-PCI Ready for Use?  
If you’re an experienced modem user, you may want only to check  
your modem’s settings for data compression, error correction, and so  
on. You may find you can get moving quite quickly if you just issue  
the AT&V<cr> command. This command lists how your modem  
currently is configured, the stored (user) profiles, and the first four  
stored telephone numbers. If you come across a setting you’re unsure  
of, refer to Chapter 3 of this manual for AT command and S-register  
explanations and defaults.  
If you’re a novice, please continue to the next sections of this chapter.  
MT5634ZPX-PCI  
21  
 
Owner’s Manual  
Operating Your MultiModemZPX-PCI  
You control your MultiModemZPX-PCI by issuing AT commands and  
setting S-registers. Since your MultiModemZPX-PCI is set up for  
typical user application—traditional modem set to make a dial-up call  
to a remote installation where the call is answered automatically—you  
shouldn’t need to change the current default configuration. (If you  
know your application does not follow this profile, refer to Chapter 3  
for AT commands and S-registers.)  
In operating your MultiModemZPX-PCI, it is likely that you will use  
your data communications software to either:  
• Enter terminal mode, where you can speak most directly to the  
modem by issuing AT commands, or  
• Launch a data communications session through a set of modem  
configurations that you select and then associate with a target  
telephone number. Once you create, save, and name this set of  
information according to your connection needs and your datacomm  
software’s conventions, the software simplifies dialing because you  
don’t have to reconfigure the modem nor have the risk of typing  
incorrect information.  
Either way, be aware that an AT command is the method by which  
your modem is controlled and must therefore prefix nearly all  
commands. AT stands for attention and alerts the modem that a  
command follows. You can enter AT commands with uppercase or  
lowercase characters. Once you’re in terminal mode, enter AT  
followed by <cr> to check whether your modem is operational. If  
everything is fine, your modem responds OK.  
Simple Operation  
You can dial by using the ATD command and the phone number of the  
modem you want to connect with, e.g., ATD6127853500. Your  
modem dials the number and makes a scrambling noise as the modem  
negotiates the kind of connection it can make. Once the modems settle  
on a common connection, a connect message on your computer’s video  
displays. To hang up, enter +++ATH0<cr>. The modem hangs up and  
your video displays OK, signifying it is ready for another command.  
22  
MT5634ZPX-PCI  
 
2 Installation  
Software Configuration  
Communications software must be configured to work with the  
MultiModemZPX-PCI, your computer, and the remote system it is  
calling. Fortunately, most communications programs make the process  
easy by providing a default initialization string to your modem as well  
as defaults for most of the other required parameters. Some software  
programs allow you to select your modem type from a menu. With this  
method, initialization strings that correspond to a particular modem  
type can be selected to operate optimally with the software the modem  
is using.  
Note: Refer to your respective software manuals for further  
information on your communications software.  
Other software programs require you to enter an initialization string in  
the software modem setup screen. If this is the requirement in your  
software application, enter the following command string to initialize  
your modem: AT&F<cr>. This setting configures your modem to  
operate with defaults set at the facotry. These settings work well with  
most software packages.  
Testing Data Functions  
You can test the MultiModemZPX-PCI’s data functions by using  
HyperTerminal to call the Multi-Tech Bulletin Board System (BBS)  
and to download a file.  
1. Select Start, Programs, Accessories, and then HyperTerminal.  
2. Start HyperTerminal by double-clicking the Hypertrm icon.  
HyperTerminal asks for the name of the connection.  
3. Type Multi-Tech BBS in the Name text box and click OK.  
4. In North America, type 800 in the Area Code box and 392-2432  
in the Phone Number box. Local and international users, type 612  
in the Area Code box and 785-3702 in the Phone Number box.  
5. Verify that the appropriate model number (e.g., Multi-Tech  
MT5634ZPX-PCI) for the modem is selected in the Connect  
Using drop-down list box. Then click OK.  
MT5634ZPX-PCI  
23  
 
Owner’s Manual  
6. In the Connect dialog box, click Dialing Properties.  
7. Make any necessary changes in the Where I Am and the How I  
Dial from This Location boxes. If you are required to dial 9 to  
access an outside line, type 9 in both the local and the long distance  
boxes unless your phone system has a special requirement.  
8. Click OK and then click Dial. If you have a speaker connected to  
the MultiModemZPX-PCI, you know you have reached another  
modem by the harsh sounds of the modem handshake.  
9. At the prompts, type your first name, last name, and password.  
Then press ENTER. If you are a first time caller, the BBS asks if  
your name is spelled correctly. If you answer yes, a questionnaire  
appears. You must complete the questionnaire to use the BBS on  
your first call.  
10. Press ENTER until the Main Menu appears. In the Main Menu  
you have access to two areas: the Files Menu and News.  
11. Type F to access the Files Menu; then type L twice. (If you don’t  
type the second L, you list all of the files on the BBS.)  
12. To mark the file areas you want to examine, type its list number  
and press ENTER.  
13. Type L to list all the files in the selected file area. (Type C to go  
forward in the file list and P to go back.)  
14. To mark files for download: type M and press ENTER. Then type  
the list numbers of the files and press ENTER again.  
15. Type D. A list of the files you marked appears. Type D again to  
start the download process.  
16. Select a file transfer protocol by typing the indicated letter, such as  
Z for Zmodem (the recommended protocol).  
17. If you select Zmodem, the file transfers automatically. If you  
select another protocol, you may have to initiate the transfer  
yourself. (In most data communications programs, the PAGE  
DOWN key initiates the download.)  
18. When the download is complete, type ENTER to return to the File  
Menu.  
19. To exit the BBs, type G and press ENTER.  
24  
MT5634ZPX-PCI  
 
2 Installation  
Testing FAX Functions  
Test your modem’s fax capabilities by sending a fax to Multi-Tech or  
to a fax machine in your office.  
Microsoft Fax is installed in Windows 95 as part of the Microsoft  
Exchange option. You can use Microsoft Fax to fax from within an  
application, such as a word processor, or to act as a stand-alone fax  
program. In the following procedure you run Microsoft Fax as a stand-  
alone fax program.  
1. Click Start, Programs, Accessories, and then WordPad.  
2. Create a message in WordPad, for example: This is a test of the  
MultiModemZPX-PCI’s fax capabilities.  
3. Save the file as ZPXTest.doc and exit WordPad.  
4. Click Start, Programs, Accessories, Fax, and then Compose  
New Fax.  
5. The Compose New Fax wizard appears. Click Next.  
6. To send the file to your own fax machine or to another fax modem  
in your office, type the destination name and phone number in the  
To and Fax # boxes.  
7. Click Add to List; then click Next.  
8. Select a cover page; then click Next.  
9. Type a subject line (e.g., MultiModemZPX-PCI Fax Test) and a  
note to go on the cover page; then click Next.  
10. Click Add File. In the Open a File to Attach dialog box, select  
ZPX Test.doc and click Open. The ZPX Test.doc file is added to  
the Files to Send list box.  
11. Click Next; then click Finish.  
12. Microsoft Fax opens the ZPX Test.doc file in WordPad, prints it  
to the Rendering System, dials the recipient, and then sends the  
fax.  
13. Exit Microsoft Fax when the Status dialog box displays that the  
fax was sent successfully.  
MT5634ZPX-PCI  
25  
 
Owner’s Manual  
Other Ways to Access Microsoft Fax  
• In Windows 95, select File, Print and select Microsoft Fax as the  
default printer.  
• In a Windows 95 application, select File and then Send.  
• In Microsoft Exchange, select Composeand then New Fax.  
Testing Voice Function  
There are several tests you can perform to verify the MultiModemZPX-  
PCI’s voice circuits. Try the answering machine test first. If that  
doesn’t work and you have a microphone and speaker connected to the  
MultiModemZPX-PCI, try the loopback and speakerphone tests, which  
can test the modem’s voice circuits without special software.  
MultiModemZPX-PCI’s Answering Machine Test  
Test the MultiModemZPX-PCI’s voice function by using the included  
software to set up the MultiModemZPX-PCI as a telephone answering  
machine. Have a friend call and leave a message; then play it back.  
Loopback Testing  
1. Connect a microphone and speaker to the MultiModemZPX-PCI.  
To avoid feedback, make sure the microphone and speaker are not  
placed too close to each other. For best results, use a headphone  
instead of a speaker. If using a headphone, be sure to reduce the  
headphone volume (if available) before starting.  
2. Click Start, Programs, Accessories, and then HyperTerminal.  
3. Double-click the Multi-Tech BBS. HyperTerminal starts with the  
Connect dialog box open.  
4. Click Cancel in the Connect dialog box.  
26  
MT5634ZPX-PCI  
 
2 Installation  
5. To loop back input from the microphone to the speaker, type  
AT&&S and press ENTER in the HyperTerminal terminal  
window.  
6. Speak into the microphone; you should hear your voice on the  
speaker or headphone.  
7. To reset the modem, type ATZ and press ENTER .  
MultiModemZPX-PCI’s Speakerphone Test  
1. Connect a microphone and speaker to the MultiModemZPX-PCI.  
2. Click Start, Programs, Accessories, and then HyperTerminal.  
3. Double-click the Multi-Tech BBS icon. HyperTerminal starts  
with the Connect dialog box open.  
4. Click Cancel in the Connect dialog box.  
5. In the HyperTerminal terminal window, type  
AT+FCLASS=8  
AT+VLS=7  
ATDTxxxxxxx (dials the phone number xxxxxxx)  
6. Speak into the microphone to talk to the person on the other end of  
the line and listen over the speaker.  
7. To hang up, type ATH and press ENTER.  
8. To reset the modem, type ATZ and press ENTER.  
MT5634ZPX-PCI  
27  
 
Owner’s Manual  
Configuring Communications Software  
Communications software must be customized, or configured, to make  
it work with your computer’s serial port and modem, to meet the  
requirements of the system on the other end of a connection, and to  
meet your own requirements.  
Windows 95 makes configuration easy for Windows 95 compliant  
communications software. The modem and port, for the most part, are  
configured automatically when the modem’s drivers are installed in  
Windows. The communications software then uses the Windows 95  
supplied configuration when it dials out.  
However, nonPnP systems as well as legacy programs—those designed  
for earlier operating systems(nonPnP)—must be configured  
individually.  
This chapter helps you make configuration choices specific to the  
MultiModemZPX-PCI. For help with other configuration choices, refer  
to the software’s manual or online Help. Generally, your best course is  
to accept the software’s default values.  
1. Turn on your computer and run your communications software.  
2. Locate the dialog box or menu that allows you to specify your  
modem.  
— In HyperTerminal, select File, Properties, and then Phone  
Number.  
— In ProComm Plus for Windows, select Window, Setup, and  
then Advanced.  
— In MultiExpress Terminal for Windows, select Setup,  
Terminal, and then Modem.)  
3. If you are using legacy software or if you have more than one  
modem installed, choose the appropriate model number for the  
modem (e.g., Multi-Tech MT5634ZPX-PCI) from the software’s  
modem list. If your model number isn’t listed, choose a generic  
modem of the same speed as yours, e.g., a generic V.34 or 33600  
bps modem and rename it Multi-Tech MT5634ZPX-PCI.  
28  
MT5634ZPX-PCI  
 
2 Installation  
4. If your legacy software doesn’t have the correct modem  
initialization string, you must change it. AT&F^M, which selects  
the modem’s factory default settings, works well for most  
connections. (^M is the code for the carriage return character that  
sends the string to the modem.)  
If you need extra time to make a connection, add S7=60 to the  
string like this: AT&FS7=60^M.  
For CompuServe, the initialization string is AT&F\N0^M. If you  
use CompuServe’s WinCIM software, change the initialization  
string to AT&F\N0\Q1^M for compatibility with WinCIM’s  
software flow control. Change the error correction string to  
\N7%C0 and the data compression string to \N7%C1. If you want  
the modem to always answer the phone, add S0=1 to the  
initialization string.  
Note: To change the modem’s default initialization string, type  
the new commands in the software’s terminal window, adding the  
command &W to store the new commands in the modem’s  
nonvolatile memory, e.g., AT&FS0=1&W. You then can simplify  
your initialization string to ATZ^M.  
5. If you are using legacy software, select the port where the modem  
is connected (normally, COM5).  
6. For maximum throughput when using data compression, set the  
serial port baud rate, or DTE rate, to 115,200 bps. (In Windows  
95, select Start, Settings, Control Panel, Modems, and then  
Properties.)  
7. If your legacy sopftware has an autobaud selection, make sure it is  
disabled. Autobaud is for older modems and can cause problems if  
enabled.  
8. If the software allows you to edit the no-connect messages (NO  
CARRIER, BUSY, NO ANSWER, NO DIALTONE), make  
sure there is no space between DIAL and TONE in NO  
DIALTONE.  
MT5634ZPX-PCI  
29  
 
Owner’s Manual  
9. If you are required to dial 9 to get an outside line, edit the dialing  
prefix to include a 9 and a comma, e.g., ATDT9, (the comma  
inserts a pause before dialing the next digit).  
Similarly, to turn off call waiting for the duration of the call, insert  
the disabling code used in your area, e.g., ATDT*70,. If you are  
using Windows 95-compliant software, make these changes in the  
How I dial from this location box of Dialing Properties.  
Note: *70 is used only in the United States.  
Remote Configuration  
Remote configuration is a network management tool that allows you to  
configure modems anywhere in your network from one location. With  
password-protected remote configuration, you can issue AT commands  
to a remote MT5634ZPX-PCI modem for maintenance or  
troubleshooting as if you were on-site.  
Basic Procedure  
Use these steps for connections established by the local or by the  
remoteMulti-Tech modem.  
1. Establish a data connection with a remote MT5634ZPX-PCI  
modem.  
2. Send three remote configuration escape characters followed by  
AT and the setup password. Then press ENTER. Example:  
%%%ATMTSMODEM<cr>. You have four attempts to enter  
the password correctly before being disconnected. If the password  
is correct, the remote modem responds with OK.  
3. You now can send AT commands to configure the remote modem.  
4. When you finish configuring the remote modem, save the new  
configuration by typing AT&W0<cr>. Then type ATO<cr> to  
exit remote configuration. You can then break the connection in  
the normal way.  
CAUTION: Hanging up while you are in remote configuration  
mode can lock up the remote modem.  
30  
MT5634ZPX-PCI  
 
2 Installation  
Setup  
Multi-Tech modems are shipped with a default setup password  
(MTSMODEM). For security measures,you should change the  
password and possibly also the remote configuration escape character.  
New password: __________________________________________  
New remote configuration escape character: ___________________  
Changing the Setup Password  
1. Open a data communications program such as HyperTerminal.  
2. In the terminal window, type AT#SMTSMODEM (or  
AT#Syyyyyy if you have replaced the MTSMODEM password  
with yyyyyy) and press ENTER. The modem responds with OK if  
the setup password is correct and ERROR if it is wrong.  
3. To change the password, type AT#S=yyyyyy, where yyyyyy  
stands for the password, and press ENTER. The password can  
include any keyboard character and must be one to eight  
characters long. The modem responds with OK.  
4. The new password is saved automatically. You now can enter  
more AT commands or exit the data communications program.  
The next time you remotely configure the modem you must use the  
new setup password.  
Note: You can only change the setup password locally; you cannot do  
it remotely. Also, passwords are case sensitive. The next time you  
enter the password, it must be in the same case as you set it up.  
Changing the Remote Escape Character  
To increase security, you can change a remote modem’s remote  
configuration escape character. 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—but if you do this remotely,  
you won’t be able to change it back remotely!  
MT5634ZPX-PCI  
31  
 
Owner’s Manual  
1. Establish a remote configuration link with the remote modem as  
described in “Basic Procedure” on the previous page.  
2. Type ATS9=n, where n is the ASCII code for the new remote  
configuration escape character. Then press ENTER.  
3. Save the new value by typing AT&W and pressing ENTER.  
4. Type ATO<CR> to exit remote configuration.  
Notes:  
1. Additional documents are available in Portable Document Format  
_IDCfiles/manuals.idc .  
You can download the Acrobat Reader to view PDF files (you  
acrobat/readstep.html  
before following the “download” link).  
2. For files with a .ZIP extension, you can download PKUNZIP.EXE  
PKUNZIP.EXE .  
3. Using your favorite Web browser, go to http://  
information on ITU V.90 support on other Multi-Tech products.  
32  
MT5634ZPX-PCI  
 
Chapter 3—AT Commands, S-Registers,  
and Result Codes  
 
Owner’s Manual  
Introduction  
This chapter lists and summarizes AT commands for the Multi-Tech’s  
MT5634ZPX-PCI. For detailed AT command information, download  
ZPXHELP.EXE from the Multi-Tech BBS (see Multi-Tech BBS in  
Chapter 5).  
AT Commands  
Command: +++AT<cr> Escape Sequence  
Values:  
n/a  
Description:  
Puts the modem in command mode while remaining online.  
Type +++AT and press ENTER. (Only AT , ATH, and  
ATH0 are valid.) The +++ATH<cr> or +++ATH0<cr>  
can be used to hang up a modem connection.  
Command:  
Values:  
AT  
Attention Code  
n/a  
Description:  
The attention code precedes all command lines except A/  
and the escape sequence.  
Command:  
Values:  
ENTER Key  
n/a  
Description:  
Press the ENTER key to execute most commands.  
Command:  
Values:  
$
Detect AT&T’s call card tone  
n/a  
Description:  
This symbol placed in dialing string enables the modem to  
detect AT&T’s call card tones to access user’s calling card  
when originating an online connection:  
ATDT1028806127853500$123456789  
(access/phone number)  
(credit card number)  
Command:  
Values:  
A
Answer  
n/a  
Description:  
Answer an incoming call before the final ring.  
Command:  
Values:  
A/  
Repeat Last Command  
n/a  
Description:  
Repeat the last command string. Do not precede this  
command with AT. Do not press ENTER to execute.  
34  
MT5634ZPX-PCI  
 
3 AT Commands, Result Codes, and S-Registers  
Command:  
Values:  
Bn  
Communication Standard Setting  
n = 0–3, 15, 16  
Default:  
1 and 16  
Description: B0  
Select ITU-T V.22 mode when modem is at 1200 bps.  
Select Bell 212A when modem is at 1200 bps.  
Deselect V.23 reverse channel (same as B3).  
Deselect V.23 reverse channel (same as B2).  
Select V.21 when the modem is at 300 bps.  
Select Bell 103J when the modem is at 300 bps.  
B1  
B2  
B3  
B15  
B16  
Command:  
Values:  
Cn  
Carrier Control  
n = 1  
Default:  
1
Description: C0  
C1  
Transmit carrier always off. (Not supported.)  
Normal transmit carrier switching (included for backward  
compatibility with some software).  
Command:  
Values:  
Default:  
Ds  
Dial  
s = dial string (phone number and dial modifiers)  
none  
Description:  
Dial telephone number s, where s may up to 40 characters  
long and include the 0–9, *, #, A, B, C, and D characters,  
and the L, P, T, V, W, S, comma (,), semicolon (;), !, @, ^  
and $ dial string modifiers.  
Dial string modifiers:  
L Redial last number. (Must be placed immediately after  
ATD.)  
P Pulse-dial following numbers in command .  
T Tone-dial following numbers in command (default).  
V Switch to speakerphone mode and dial the following  
number. Use ATH command to hang up.  
W Wait for a new dial tone before continuing to dial. (X2,  
X4, X5, X6, or X7 must be selected.)  
S Dial a telephone number previously stored using the  
&Zn=x command (see &Zn=x command for further  
information). The range of n is 0-3.  
,
;
Pause during dialing for time set in register S8.  
Return to command mode after dialing. (Place at end of  
dial string.)  
!
Hook flash. Causes the modem to go on-hook for one-  
half second, then off-hook again.  
MT5634ZPX-PCI  
35  
 
Owner’s Manual  
@ Wait for quiet answer. Causes modem to wait for a  
ringback, then 5 seconds of silence, before processing  
next part of command. If silence is not detected, the  
modem returns a NO ANSWER code.  
$
AT&T’s call card tones detection.  
^ Disable data calling tone transmission.  
Command:  
Values:  
DS=n Dial Stored Telephone Number  
n = 0–3  
Default:  
none  
Description:  
Dial a number previously stored in directory number n by  
the &Zn=x command .  
Example: ATDS=3  
Command:  
Values:  
En  
Echo Command Mode Characters  
n = 0 or 1  
Default:  
1
Description: E0  
E1  
Do not echo keyboard input to the terminal.  
Do echo keyboard input to the terminal.  
Command:  
Values:  
Fn  
Echo Online Data Characters  
n = 1  
Default:  
1
Description: F0  
F1  
Enable online data character echo. (Not supported.)  
Disable online data character echo (included for backward  
compatibility with some software).  
Command:  
Values:  
Hn  
Hook Control  
n = 0 or 1  
Default:  
0
Description: H0  
H1  
Go on-hook to hang up.  
Go off-hook to make the phone line busy.  
Command:  
Values:  
In  
Information Request  
n = 0–4, 9, 11  
Default:  
None  
Description: I0  
Display default speed and controller firmware version.  
Calculate and display ROM checksum (e.g., 12AB).  
Check ROM and verify the checksum, displaying OK or  
ERROR.  
I1  
I2  
I3  
Display default speed and controller firmware version.  
36  
MT5634ZPX-PCI  
 
3 AT Commands, Result Codes, and S-Registers  
I4  
I9  
Display firmware version for data pump (e.g., 94).  
Display country code (e.g., NA Ver. 1).  
I11  
Display Diagnostic Information for the last Modem  
Connection (i.e., DSP and Firmware version, Link Type,  
Line Speed, Serial Speed, Type of Error Correction/Data  
Compression, Number of past Retrains,etc.)  
Command:  
Values:  
Ln  
Monitor Speaker Volume  
n = 0, 1, 2, or 3  
Default:  
2
Description: L0  
Select low volume.  
Select low volume.  
Select medium volume.  
Select high volume.  
L1  
L2  
L3  
Command:  
Mn  
Monitor Speaker Mode  
Values:  
n = 0, 1, 2, or 3  
Default:  
1
Description: M0  
Speaker always off.  
M1  
M2  
M3  
Speaker on until carrier signal detected.  
Speaker always on when modem is off-hook.  
Speaker on until carrier is detected, except while dialing.  
Command:  
Values:  
Nn  
Modulation Handshake  
n = 0 or 1  
Default:  
1
Description: N0  
Modem performs handshake only at communication  
standard specified by S37 and the B command.  
Modem begins handshake at communication standard  
specified by S37 and the B command. During handshake,  
fallback to a lower speed can occur.  
N1  
Command:  
Values:  
O
Return Online to Data Mode  
0, 1, 3  
Default:  
None  
Description: O0  
Exit online command mode and return to data mode.  
Issue a retrain and return to online data mode.  
Issue a rate renegotiation and return to data mode.  
O1  
O3  
MT5634ZPX-PCI  
37  
 
Owner’s Manual  
Command:  
Values:  
Qn  
Result Codes Enable/Disable  
n = 0 or 1  
Default:  
0
Description: Q0  
Q1  
Enable result codes.  
Disable result codes.  
Command:  
Values:  
Sr=n Set Register Value  
r = S-register number; n varies  
Default:  
None  
Description:  
Set value of register Sr to value of n, where n is entered in  
decimal format.  
Command:  
Values:  
Sr?  
Read Register Value  
r = S-register number  
Default:  
None  
Description:  
Read value of register Sr and display value in 3-digit  
decimal form.  
Command:  
Values:  
Vn  
Result Code Format  
n = 0 or 1  
Default:  
1
Description: V0  
V1  
Displays result codes as digits (terse response).  
Displays result codes as words (verbose response).  
Command:  
Values:  
Xn  
Result Code Selection  
n = 0–7  
Default:  
4
Description: X0  
X1  
Basic result codes (e.g., CONNECT); does not look for dial  
tone or busy signal.  
Extended result codes (CONNECT 56000 V42bis,  
CONNECT 33600 V42bis, etc.); does not look for dial tone  
or busy signal.  
X2  
X3  
Extended result codes with NO DIALTONE; does not look  
for busy signal.  
Extended result codes with BUSY; does not look for dial  
tone.  
X4  
X5  
X6  
X7  
Extended result codes with NO DIALTONE and BUSY.  
Extended result codes with NO DIALTONE and BUSY.  
Extended result codes with NO DIALTONE and BUSY.  
Basic result codes with NO DIALTONE and BUSY.  
38  
MT5634ZPX-PCI  
 
3 AT Commands, Result Codes, and S-Registers  
Command:  
Values:  
Yn  
Long Space Disconnect  
n = 0  
Default:  
0
Description: Y0  
Y1  
Disable sending or responding to long space break signal  
on disconnect.  
Enable sending or responding to long space break signal on  
disconnect. (Not supported.)  
Command:  
Values:  
Zn  
Modem Reset  
n = 0 or 1  
Default:  
None  
Description: Z0  
Z1  
Reset modem to profile saved by the last &W command.  
Same as Z0.  
Command:  
Values:  
&Bn V.32 Auto Retrain  
n = 1  
Default:  
1
Description: &B0 Disable V.32 auto retrain. (Not supported.)  
&B1 Enable V.32 auto retrain.  
Command:  
Values:  
&Cn Data Carrier Detect (DCD) Control  
n = 0 or 1  
Default:  
1
Description: &C0 Force Data Carrier Detect signal high.  
&C1 Let Data Carrier Detect follow carrier signal.  
Command:  
Values:  
&Dn Data Terminal Ready (DTR) Control  
n = 0, 1, 2, or 3  
Default:  
2
Description: &D0 Modem ignores DTR signal.  
&D1 When DTR drops while in online data mode, the modem  
enters command mode, issues an OK, and remains  
connected.  
&D2 When DTR drops while in online data mode, the modem  
hangs up.  
&D3 When DTR drops, the modem hangs up and resets as if an  
ATZ command were issued.  
MT5634ZPX-PCI  
39  
 
Owner’s Manual  
Command:  
Values:  
&Fn Load Factory Default Settings  
n = 0  
Default:  
None  
Description: &F0 Load factory settings as active configuration.  
Command:  
Values:  
&Gn V.22bis Guard Tone Control  
n = 0, 1, or 2  
Default:  
0
Description: &G0 Disable guard tone.  
&G1 Enable 550 Hz guard tone.  
&G2 Enable 1800 Hz guard tone.  
Note: The &G command is not used in North America.  
Command:  
Values:  
&Jn Auxiliary Relay Control  
n = 0  
Default:  
0
Description: &J0  
&J1  
The auxiliary relay is never closed.  
Not supported—responds ERROR.  
Command:  
Values:  
&Kn Local Flow Control Selection  
n = 0, 3, or 4  
Defaults:  
3
Description: &K0 Flow control disabled.  
&K3 Enable CTS/RTS hardware flow control.  
&K4 Enable XON/XOFF software flow control.  
Command:  
Values:  
&Mn Communications Mode  
n = 0  
Defaults:  
0
Description: &M0 Asynchronous mode.  
&M1 Reserved—responds ERROR.  
Command:  
Values:  
&Qn Asynchronous Communications Mode  
n = 0, 5, or 6  
Defaults:  
5
Description: &Q0 Asynchronous with data buffering. Same as \N0.  
&Q5 Error control with data buffering. Same as \N3.  
&Q6 Asynchronous with data buffering. Same as \N0.  
40  
MT5634ZPX-PCI  
 
3 AT Commands, Result Codes, and S-Registers  
Command:  
Values:  
&Sn Data Set Ready (DSR) Control  
n = 0 or 1  
Default:  
0
Description: &S0 Force DSR high (on).  
&S1 Let DSR follow CD.  
Command:  
Values:  
&Tn Self-Test Commands  
n = 0, 1, 3 or 6  
Default:  
None  
Description: &T0 Abort. Stop any test in progress.  
&T1 Local analog loop test.  
&T3 Local digital loopback test.  
&T6 Remote digital loopback test.  
Command:  
Values:  
&V  
View Current Configuration  
n/a  
Description:  
Displays the active modem settings.  
Command:  
Values:  
&Wn Store Current Configuration  
n = 0  
Default:  
None  
Description: &W0 Store active modem settings in NVRAM; load them at  
power-on or following the ATZ command instead of  
loading the factory defaults from ROM.  
Command:  
Values:  
&Yn Select Stored Configuration for Hard Reset  
n = 0  
Default:  
0
Description: &Y0 Select stored configuration 0 on power-up.  
(For backward compatibility with some software.)  
&Y1 Not supported—responds ERROR.  
Command: &Zn=x Store Telephone Number  
Values:  
n = 0, 1, 2, or 3  
x = Dialing string  
Default:  
None  
Description:  
Stores telephone dial string x in memory location n. Dial  
the stored number using the command ATDS=n.  
MT5634ZPX-PCI  
41  
 
Owner’s Manual  
Command:  
Values:  
\Gn  
Modem Port Flow Control  
n = 0  
Default:  
0
Description: \G0  
\G1  
Returns an OK for backward compatibility with some  
software.  
Not supported—responds ERROR.  
Command:  
Values:  
\Jn  
Data Buffer Control  
n = 0  
Default:  
0
Description: \J0  
Enable data buffer—serial port speed is independent of  
connect speed.  
\J1  
Not supported—responds ERROR.  
Command:  
Values:  
\Kn  
Set Break Control  
n = 5  
Default:  
5
Description: \K5  
Modem sends break signal received from the DTE to the  
remote modem.  
Command:  
Values:  
\Nn  
Error Correction Mode Selection  
n = 0–5, or 7  
Default:  
3
Description: \N0  
Non-error correction mode with data buffering  
(same as &Q6).  
\N1  
\N2  
\N3  
\N4  
\N5  
\N7  
Direct mode.  
MNP reliable mode.  
V.42/MNP auto-reliable mode.  
V.42 reliable mode.  
V.42, MNP, or non-error correction (same as \N3).  
V.42, MNP, or non-error correction (same as \N3).  
Command:  
Values:  
\Qn  
Local Flow Control Selection  
n = 0, 1, or 3  
Default:  
3
Description: \Q0  
Disable flow control (same as &K0).  
XON/XOFF software flow control (same as &K4).  
CTS-only flow control. Not supported—responds ERROR.  
RTS/CTS hardware flow control (same as &K3).  
\Q1  
\Q2  
\Q3  
42  
MT5634ZPX-PCI  
 
3 AT Commands, Result Codes, and S-Registers  
Command:  
Values:  
\Tn  
Inactivity Timer  
n = 0–255  
Default:  
0
Description: \Tn  
Inactivity timer setting contingent on either \T value or S-  
Register S30 value (e.g., AT\T45&W0<cr> configures in  
parallel ATS30=45&W0<cr>) and vice versa.  
Command:  
Values:  
\Vn  
Protocol Result Code  
n = 0 or 1  
Default:  
1
Description: \V0  
\V1  
Disable protocol result code appended to DCE speed.  
Enable protocol result code appended to DCE speed.  
Command:  
Values:  
\Xn  
XON/XOFF Pass-Through  
n = 0 or 1  
Defaults:  
0
Description: \X0  
\X1  
Respond to and discard XON/XOFF characters.  
Not supported—responds ERROR.  
Command:  
Values:  
-Cn  
Data Calling Tone  
n = 0 or 1  
Defaults:  
0
Description: -C0  
-C1  
Disable V.25 data calling tone.  
Enable V.25 data calling tone.  
Command:  
Values:  
%B  
View Numbers in Blacklist  
n/a  
Description:  
If blacklisting is in effect, this command displays the  
numbers for which the last call attempted in the previous  
two hours failed. In countries that do not require  
blacklisting, the ERROR result code appears.  
Command:  
Values:  
%Cn Data Compression Control  
n = 0 or 1  
Default:  
1
Description: %C0 Disable V.42bis/MNP 5 data compression.  
%C1 Enable V.42bis/MNP 5 data compression.  
MT5634ZPX-PCI  
43  
 
Owner’s Manual  
Command:  
Values:  
+ES=6 Enable Synchronous Buffered Mode  
n/a  
Description:  
Allows an H.324 video application direct access to the  
synchronous data channel. On underflow, the modem sends  
HDLC flag idle (0x7E) to the remote modem. This special  
error correction mode is overridden by any of the following  
commands: &F, &M, &Q, and \N. +ES = ? shows the only  
allowed value.  
Command:  
Values:  
&&S Speaker Codec Loopback  
n/a  
Description:  
Provides a loopback from the microphone to the speaker.  
For testing and debugging only.  
44  
MT5634ZPX-PCI  
 
3 AT Commands, Result Codes, and S-Registers  
S-Registers  
S-registers generally affect how the AT commands perform. You can  
read or alter the contents of an S-register by using the S command (see  
AT Commands).  
Register Unit  
Range Default Description  
S0  
rings  
0, 1–255  
0
Sets the number of rings before the  
modem answers. ATS0=0 disables  
auto-answer completely.  
S1  
S2  
rings  
0–255  
0
Counts the number of rings that have  
occurred.  
decimal 0–127  
128–255  
43 (+)  
Sets ASCII code for the escape  
character. Values greater than 127  
disable the escape sequence.  
S3  
S4  
S5  
decimal 0–127  
decimal 0–127  
13 (^M) Sets ASCII code for the carriage  
return character.  
10 (^J) Sets ASCII code for the line feed  
character.  
decimal 0–32  
33–127  
8 (^H)  
Sets ASCII code for the backspace  
character. Values greater than 32  
disable the backspace character.  
S6  
S7  
seconds 2–65*  
seconds 1–255*  
2*  
Sets the time the modem waits after it  
goes off-hook before it begins to dial  
the telephone number.  
50*  
Sets the time the modem waits for a  
carrier signal before aborting a call.  
Also sets the wait for silence time for  
the @ dial modifier.  
S8  
seconds 0–65  
2
Sets the length of a pause caused by a  
comma character in a dialing com-  
mand.  
S10  
100 ms  
1–254  
20  
Sets how long a carrier signal must be  
lost before the modem disconnects.  
Note: These values may be different outside North America.  
MT5634ZPX-PCI  
45  
 
Owner’s Manual  
Register Unit  
Range Default Description  
50–150* 95* Sets spacing and duration of dialing  
S11  
S28  
S30  
1 ms  
tones.  
decimal 0, 1–255  
1 minute 0–255  
1
0
0 disables, 1–255 enables V.34  
modulation.  
S30 specifies the length of time (in  
minutes) that the modem waits before  
disconnecting when no data is sent or  
received. This function is applicable  
only to buffer mode. (Also see \T  
command.)  
S35  
S36  
decimal 0–1  
0
0 disables, 1 enables the V.25 data  
calling tone, which allows remote  
data/fax/voice discrimination.  
decimal {0,2}, {1,3} N/A  
{4,6}, {5,7}  
This register specifies the action to  
take in the event of negotiation  
failure when error control is selected.  
(See S48.)  
S37  
decimal 0–19  
0
S37 sets the maximum V.34 upstream  
speed that the modem attempts to  
connect.  
0 = maximum negotiated modem  
speed  
1 = reserved  
2 = 1200/75 bps  
3 = 300 bps  
4 = reserved  
5 = 1200 bps  
6 = 2400 bps  
7 = 4800 bps  
8 = 7200 bps  
9 = 9600 bps  
10 = 12000 bps  
11 = 14400 bps  
12 = 16800 bps  
13 = 19200 bps  
14 = 21600 bps  
15 = 24000 bps  
16 = 26400 bps  
17 = 28800 bps  
18 = 31200 bps  
19 = 33600 bps  
46  
MT5634ZPX-PCI  
 
3 AT Commands, Result Codes, and S-Registers  
Range Default Description  
Register Unit  
S38  
decimal 0–14  
1
Sets maximum 56K downstream  
speed that the modem attempts to  
connect. Where K56flex provided  
rates of 32,000 to 56,000 in 2,000 bps  
increments. V.90 provides rates of  
28,000 to 56,000 bps in increments of  
1,333 bps.  
0 =V.90/56Kflex disabled  
1 = V.90/56Kflex enabled with auto-  
matic speed selection maximum  
negotiated modem speed enabled  
2 = 29,333  
3 = 30,666  
4 = 32,000  
5 = 33,333  
6 = 34,666  
7 = 36,000  
8 = 37,333  
9 = 38,666  
10 = 40,000  
11 = 41,333  
12 = 42,666  
13 = 44,000  
14 = 45,333  
15 = 46,666  
16 = 48,000  
17 = 49,333  
18 = 50,666  
19 = 52,000  
20 = 53,333  
21 = 54,666  
22 = 56,000  
S42  
S43  
decimal 0–1  
decimal 0–1  
1
1
Enables/disables the 56K auto rate.  
Retrain and fallback are disabled in  
data mode.  
0 = disable; 1 = enable.  
For testing and debugging only.  
Enables/disables V.32bis start-up  
auto mode operation.  
0 = disable; 1 = enable.  
MT5634ZPX-PCI  
47  
 
Owner’s Manual  
Register Unit  
Range Default Description  
S48  
decimal 7 or 128  
7
The chart below lists the S36 and S48  
configuration settings necessary to  
negotiate certain types of connections.  
S48=7  
LAPM or Hangup  
LAPM or Async  
LAPM, MNP, or Hangup MNP or Hangup  
LAPM, MNP, or Async MNP or Async  
S28=128  
Do not use  
Async  
S36=0,2  
S36=1,3  
S35=4,6  
S36=5,7  
S89  
seconds 0, 5–255 60  
Sets the length of time in the off-line  
command mode before the modem  
goes into standby mode. A value of  
zero prevents standby mode; a value  
of 1–4 sets the value to 5.  
S108  
decimal 0-3, 6,7  
6
Selects the digital loss if using the  
modem thru a PBX line. Default  
value is -6dB loss, the value used  
when calling from a typical POTS  
line long distance.  
S109  
0, 1, 2  
Sets one of three 56K operating  
modes: K56flex mode, V.90 mode, or  
Auto-mode.  
0
1
V.90 disabled  
K56flex or V.90 (Dual-mode  
enabled)  
2
V.90 only (K56flex disabled).  
Forces V.90 connections for  
testing purposes, etc.  
48  
MT5634ZPX-PCI  
 
3 AT Commands, Result Codes, and S-Registers  
Result Codes  
In command mode the MultiModemZPX-PCI sends result codes to  
your computer to provide you with ongoing information during dialing  
and connection. The following table shows the available result codes.  
Terse  
Verbose  
Description  
0
1
2
3
OK  
CONNECT  
RING  
NO CARRIER  
detected  
Command executed  
Modem connected to line  
Ring signal detected  
Carrier signal lost or not  
4
ERROR  
Invalid command  
5 *  
6
7
CONNECT 1200  
NO DIALTONE  
BUSY  
Connected at 1200 bps  
No dial tone detected  
Busy signal detected  
8
NO ANSWER  
CONNECT 2400  
CONNECT 4800  
CONNECT 9600  
CONNECT 14400  
CONNECT 19200  
CONNECT 7200  
CONNECT 12000  
CONNECT 16800  
CONNECT 300  
CONNECT 21600  
CONNECT 24000  
CONNECT 26400  
CONNECT 28800  
CONNECT 31200  
CONNECT 32000  
CONNECT 33600  
CONNECT 34000  
CONNECT 36000  
CONNECT 38000  
CONNECT 40000  
CONNECT 42000  
CONNECT 44000  
No answer at remote end  
Connected at 2400 bps  
Connected at 4800 bps  
Connected at 9600 bps  
Connected at 14400 bps  
Connected at 19200 bps  
Connected at 7200 bps  
Connected at 12000 bps  
Connected at 16800 bps  
Connected at 300 bps  
Connected at 21600 bps  
Connected at 24000 bps  
Connected at 26400 bps  
Connected at 28800 bps  
Connected at 31200 bps  
Connected at 32000 bps  
Connected at 33600 bps  
Connected at 34000 bps  
Connected at 36000 bps  
Connected at 38000 bps  
Connected at 40000 bps  
Connected at 42000 bps  
Connected at 44000 bps  
10*  
11*  
12*  
13*  
14*  
24*  
25*  
26*  
40*  
55*  
56*  
57*  
58*  
59*  
70*  
60*  
71*  
72*  
73*  
74*  
75*  
76*  
MT5634ZPX-PCI  
49  
 
Owner’s Manual  
Terse  
77*  
Verbose  
Description  
CONNECT 46000  
CONNECT 48000  
CONNECT 50000  
CONNECT 52000  
CONNECT 54000  
CONNECT 56000  
DELAYED  
Connected at 46000 bps  
Connected at 48000 bps  
Connected at 50000 bps  
Connected at 52000 bps  
Connected at 54000 bps  
Connected at 56000 bps  
Delay is in effect for the dialed  
number  
78*  
79*  
80*  
81*  
82*  
88  
89  
90  
BLACKLISTED  
Dialed number is blacklisted  
Blacklist is full  
BLACKLIST FULL  
CONNECT 28000  
CONNECT 29333  
CONNECT 30666  
CONNECT 33333  
CONNECT 34666  
CONNECT 37333  
CONNECT 38666  
CONNECT 41333  
CONNECT 42666  
CONNECT 45333  
CONNECT 46666  
CONNECT 49333  
CONNECT 50666  
CONNECT 53333  
CONNECT 54666  
100  
101  
102  
103  
104  
105  
106  
107  
108  
109  
110  
111  
112  
113  
114  
Connected at 28000 bps  
Connected at 29333 bps  
Connected at 30666 bps  
Connected at 33333 bps  
Connected at 34666 bps  
Connected at 37333 bps  
Connected at 38666 bps  
Connected at 41333 bps  
Connected at 42666 bps  
Connected at 45333 bps  
Connected at 46666 bps  
Connected at 49333 bps  
Connected at 50666 bps  
Connected at 53333 bps  
Connected at 54666 bps  
* EC is added to these Result Codes when the extended Result Codes configuration option  
is enabled. EC is replaced by one of the following codes, depending on the type of error  
control connection: V42bis (V.42 error control [LAP-M] and V.42bis data compression);  
V42 (V.42 error control [LAP-M] only); MNP5 (MNP 4 error control and MNP 5 data  
compression); MNP4 (MNP 4 error control only); NoEC (No error control protocol).  
50  
MT5634ZPX-PCI  
 
Chapter 4—Troubleshooting  
 
Owner’s Manual  
Introduction  
This chapter covers common problems you may have with your  
modem and how to solve them. Your MultiModemZPX-PCI was  
thoroughly tested at the factory before it was shipped. If you are unable  
to make a successful connection or if you experience data loss or  
garbled characters during your connection, it is possible that the  
modem is defective. However, it is more likely that the source of your  
problem lies elsewhere. Begin with the checklist (below) to make sure  
all hardware is connected properly. Then review the common problems  
for recommendations on what to change.  
Initial Checklist  
Always begin with the following checklist to make sure all hardware is  
properly connected and that the modem is set up properly.  
Make sure you are running the Microsoft Windows 95 or Windows  
98 operating system. This modem will not run properly with other  
operating systems.  
Make sure the COM port you chose during setup matches the COM  
port set in your communications software. See Chapter 2.  
Check that the phone cord between the modem’s LINE jack and the  
wall jack is undamaged and firmly connected to both.  
If you connected a telephone to your modem, check that the phone  
cord between the modem’s PHONE jack and the telephone is  
undamaged and firmly connected to both.  
If you connected a microphone to your modem, check the connection  
of the microphone plug to the modem’s MIC IN jack.  
If you connected speakers to your modem, check the connection of  
the speaker plug to the modem’s LINE OUT jack.  
Retry whatever action was not working.  
If it still does not work, check the following section for a description  
and possible solution of your problem.  
If you don’t find your problem listed in this chapter, see Chapter 5 to  
learn how to reach our technical support technicians via our toll-free  
telephone number, the Internet, or CompuServe. Don’t forget to fill  
out the information in Recording Modem Information in Chapter 5  
before contacting a technical support technician.  
52  
MT5634ZPX-PCI  
 
4 Troubleshooting  
Common Problems  
You may encounter the following problems:  
The modem does not respond to commands.  
The modem dials but is unable to make a connection.  
The modem disconnects while online.  
The modem cannot connect when answering.  
File transfer appears slower than it should be.  
Data is being lost.  
There are garbage characters on the monitor.  
Fax and communications software won’t run at the same time.  
If you experience problems, please check the following possibilities  
before calling Technical Support (see Chapter 5).  
The modem does not respond to commands  
Make sure you are in terminal mode in your data communications  
program; then type AT and press ENTER. If you get an OK  
response, your connections are good. The problem likely is in the  
connection description in your communications software.  
Reset your modem by sending it an ATZ or AT&F command in  
terminal mode. If using legacy software (software designed for an  
older operating system), make sure the initialization string includes  
&F as the first command to cancel any leftover commands that could  
interfere with the modem’s operation.  
If you don’t get an OK, the problem may still be in the  
communications software. Make sure you have done whatever  
necessary in your software to make a port connection. Most legacy  
(prior to Windows 95) communications programs connect to the  
COM port when the software loads and remain connected until the  
program terminates. Some can disconnect without exiting the  
program. If this is the case, try issuing the software’s connection  
command. Also, if more than one communications program is open,  
they can conflict with each other. Make sure all other  
communications programs are closed and then try again.  
MT5634ZPX-PCI  
53  
 
Owner’s Manual  
If using legacy software, the COM port setting may not match the  
COM port that Windows 95 assigned. Compare the COM port  
setting in your software to the COM port reported in the Diagnostics  
tab of the Modem’s Properties sheet. (Select Start, Settings, Control  
Panel, Modems, and then Diagnostics.)  
Another expansion card such as a bus mouse or sound card may be  
using the same COM port, memory address, or interrupt request  
(IRQ) as your modem. On the Windows 95 desktop, right-click My  
Computer and select Properties, Device Manager, and Ports. Then  
double-click the port where your modem is connected.  
In the port’s Properties sheet, click the Resources tab to view the  
port’s Input/Output range and Interrupt Request. If another device is  
using the same address range or IRQ, it appears in the Conflicting  
Device List. Resources are assinged at power up by the computer’s  
BIOS. Windows cannot change these resources. If the resources  
assigned to the MultiModemZPX-PCI conflict with the resources of  
another device, the resources of the second device have to be  
changed.  
Select the port the conflicting device is on and change it so othe  
conflict is resolved. If you need to change switches or jumpers on  
the conflicting device, refer to the device’s documentation.  
The modem may be defective. If you have another  
MultiModemZPX-PCI, try swapping modems. If the problem goes  
away, the first modem possibly is defective. Call Technical Support  
for assistance (see Chapter 5).  
54  
MT5634ZPX-PCI  
 
4 Troubleshooting  
The modem dials but cannot make a connection  
Several reasons why the MultiModemZPX-PCI fails to make a  
connection include  
Lack of a physical connection to the telephone line.  
A wrong dial tone.  
A busy signal.  
A wrong number.  
No modem at the other end.  
A faulty modem, computer, or software at the other end.  
Incompatibility between modems.  
Narrow the list of possibilities by using extended result codes. If you  
disabled the modem’s extended result codes, enable them by entering  
ATV1X4 in the terminal window and pressing ENTER. When you dial  
again, the modem reports the call’s progress.  
If the modem reports NO DIALTONE, check that the modem’s  
telephone line cable is connected to both the modem’s LINE jack  
(not the PHONE jack) and the telephone wall jack. If the cable looks  
secure, try replacing it.  
If that doesn’t work, the problem may be in your building’s  
telephone installation. To test the building installation, plug a  
telephone into your modem’s telephone wall jack and listen for a  
dial tone. If you hear a dial tone, your modem may be installed  
behind a company phone system (PBX) with an internal dial tone  
that sounds different from the normal dial tone. In that case, the  
modem may not recognize the dial tone and may 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  
include X3, which makes the modem ignore dial tones.  
If the modem reports BUSY, the other number may be busy. Try  
again later. BUSY also may indicate that 9 was not added to the  
phone number (if required to dial 9 for an outside line).  
If you are required to dial 9 to get an outside line, the easiest way to  
dial it automatically using legacy software is to include it in the  
modem’s dial prefix, e.g., ATDT9,. Note the comma. It inserts a  
pause before the number is dialed. For example, to change the dial  
MT5634ZPX-PCI  
55  
 
Owner’s Manual  
prefix in MultiExpress Terminal, select Setup and Modem. Then  
select the modem type you are using and type the new prefix in the  
Dial Prefix box.  
To change it for Windows 95 software, select Start, Settings,  
Control Panel, and then Modems. In the Modems Properties sheet,  
select the appropriate modem model number (e.g., Multi-Tech  
MT5634ZPX-PCI), click Dialing Properties and type 9 in the local  
and long distance boxes in the How I dial from this location box.  
If the modem reports NO ANSWER, the other system has failed to  
answer, or you may have dialed a wrong number. Check the number.  
If the modem reports NO CARRIER, the phone was answered at the  
other end, but no connection was made, you may have dialed a  
wrong number, and a person answered instead of a computer. Or,  
you may have dialed the correct number, but the other computer or  
software was turned off or faulty. Check the number and try again or  
try calling another system to make sure your modem is working.  
Also, try calling the number on your telephone. If you hear harsh  
sounds, then another modem is answering the call; the modems may  
be having problems negotiating due to modem incompatibilities or  
line noise. Try connecting at a lower speed by setting register S37 to  
a lower rate (e.g., by typing ATS37=11 in the terminal window and  
pressing ENTER) and then calling again.  
The modem disconnects while online  
If you have call waiting on the same phone line as your modem, it  
may interrupt your connection when someone tries to call you. If you  
have call waiting, disable it before each call. In most telephone areas  
in North America, you can disable call waiting by preceding the  
telephone number with *70 (check with your local telephone  
company).  
You can disable call waiting automatically by including the disabling  
code in the modem’s dial prefix (e.g., ATDT*70,—note the comma,  
which inserts a pause before the telephone number is dialed). For  
example, to change the dial prefix in MultiExpress Terminal, select  
Setup and Modem. Then select the modem type you are using and  
type the new prefix in the Dial Prefix box. To change it for Windows  
56  
MT5634ZPX-PCI  
 
4 Troubleshooting  
95 software, select Start, Settings, Control Panel, and then Modems.  
In the Modems Properties sheet, select Multi-Tech MT5634ZPX-  
PCI, click Dialing Properties. Check This location has call waiting  
and select the correct code for your phone service.  
Note: *70 is used only in the United States.  
If you have extension phones on the same line as your modem, you  
or someone else can interrupt the connection by picking up another  
phone. If this is a frequent problem, disconnect the extension phones  
before using the modem or install another phone line for the modem  
only.  
Check for loose connections between the modem and the telephone  
jack.  
You may have a poor connection because of line conditions, or the  
problem may have originated on the other end of the line. Try again.  
If you were online with a BBS or commercial online service, it may  
have hung up because of lack of activity on your part or because you  
exceeded your time limit for the day. Try again.  
The modem cannot connect when answering  
Auto-answer may be disabled. Turn on auto-answer in your data  
communications program or send the command ATS0=1 to your  
modem in terminal mode.  
File transfer appears slower than it should  
If you are using a slow transfer protocol, such as Xmodem or  
Kermit, try Zmodem or Ymodem/G instead.  
Is your line noisy? If there is static on your line, the modem has to  
resend many blocks of data to insure accuracy. You must have a  
clean line for maximum speed.  
Are you downloading a compressed file with MNP 5 hardware  
compression enabled? Since hardware data compression cannot  
compress a file already compressed by an archiving program, the  
transfer can be marginally slower with data compression enabled  
than with it disabled.  
MT5634ZPX-PCI  
57  
 
Owner’s Manual  
Data is being lost  
If you are using data compression, be sure the serial port baud rate is  
set to a minimum of four times the data rate.  
Make sure the flow control method you selected in software matches  
the method selected in the modem. If you are using CompuServe’s  
WinCIM software, you must set the modem for XON/OFF flow  
control (see Chapter 2 for the CompuServe initialization string).  
Try entering the &V (View Parameters) command, making a screen  
print of the diagnostics listing, and checking for parameters that may  
be unacceptable.  
There are garbage characters on the monitor  
Your computer and the remote computer may be set to different  
word lengths, stop bits, or parities. If you have connected at 8-N-1,  
try changing to 7-E-1, or vice-versa, using your communications  
software.  
You may be experiencing line noise. Enable error correction if it is  
disabled. Or, hang up and call again; you may get a better  
connection.  
At speeds above 2400 bps, the remote modem may not use the same  
transmission or error correction standards as your modem. Try  
connecting at a slower speed or disabling error correction. (With no  
error correction, however, line noise can cause garbage characters.)  
Try entering the &V (View Parameters) command, making a screen  
print of the diagnostics listing, and checking for parameters that may  
be unacceptable.  
Fax and data software won’t run at the same time  
You can have Windows 95 compliant data and fax communication  
applications open at the same time, but they cannot use the same  
modem at the same time. Make sure no other application is online  
when you try to dial out. If you are using legacy communications  
software with Windows 95, you may get a message that another  
application is occupying the device even when no call is in progress.  
Close any open legacy communications programs and try again.  
58  
MT5634ZPX-PCI  
 
Chapter 5—Warranty, Service,  
and Tech Support/BBS  
 
Owner’s Manual  
Introduction  
This chapter begins with the terms of your modem’s warranty.  
Carefully read the next section, Tech Support, if you have questions or  
problems with your modem. It includes technical support telephone  
numbers, space for recording your modem information, 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 information and support through CompuServe, the Internet,  
and our fax-back service.  
Limited Warranty  
Multi-Tech Systems, Inc. (MTS) warrants that this product will be free  
from defects in material or workmanship for a period of ten years from  
the date of purchase or, if date of purchase is not provided, ten years  
from the date of shipment (limited to customers in the U.S., Canada,  
Mexico, and United Kingdom). For customers in all other countries,  
due to certain legal restrictions, MTS warrants that this product will be  
free from defects in material or workmanship for a period of five years  
from the date of purchase or, if date of purchase is not provided, five  
years from the date of shipment, unless otherwise limited or prohibited by  
law.  
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 that have been damaged  
by lightning storms, water, or power surges, or that 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.  
60  
MT5634ZPX-PCI  
 
5 Warranty, Service, and Tech Support  
MTS’s entire obligation under this warranty shall be limited (at MTS’s  
option) to repair or replacement of any products that 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 with transportation prepaid.  
MTS WILL NOT BE LIABLE FOR CONSEQUENTIAL DAMAGES  
AND UNDER NO CIRCUMSTANCES WILL ITS LIABILITY  
EXCEED THE PURCHASE PRICE FOR DEFECTIVE PRODUCTS.  
Online Warranty Registration  
To register your Multi-Tech product online, click the following link:  
MT5634ZPX-PCI  
61  
 
Owner’s Manual  
Technical 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 this unit, please call  
(800) 972-2439 (USA and Canada) or (612) 785-3500 (local and  
international). Record modem information in the spaces provided  
below and have it available when you call. If your modem requires  
service, the tech support specialist will guide you on how to send in  
your modem.  
Recording Modem Information  
Record the following information on your Multi-Tech modem. This  
helps Tech Support in answering your questions.  
Model no.: _____________________________________________  
Serial no.: _____________________________________________  
Firmware version:_______________________________________  
Software version: _______________________________________  
COM port no.: __________________________________________  
IRQ setting: ____________________________________________  
The modem model and serial numbers are silk-screened on your modem.  
The software versions are printed on the diskette labels. Type  
ATI1<cr> in terminal mode to display the modem firmware version.  
Note the status of your modem in the space provided before calling  
tech support. This includes screen messages, diagnostic test results,  
problems with a specific application, etc.  
_________________________________________________________  
_________________________________________________________  
_________________________________________________________  
_________________________________________________________  
_________________________________________________________  
62  
MT5634ZPX-PCI  
 
5 Warranty, Service, and Tech Support  
Service  
If your technical support specialist decides that service is required and  
you are outside the USA, your local distributor of Multi-Tech products  
usually offers the quickest and most economical repair option. If  
necessary, you can send your modem to our Mounds View factory in  
the USA. A modem that is shipped to us from outside the USA must  
have a Returned Materials Authorization (RMA) and shipping  
instructions. To return a modem for repair from inside the USA, no  
RMA is required; simply send it to us freight prepaid. Include a  
description of the problem, return billing and shipping addresses,  
check or purchase order for out-of-warranty repairs, and name of the  
technical support specialist you spoke to, if possible.  
Send modems that require repairs to the following address:  
Multi-Tech Systems, Inc.  
2205 Woodale Drive  
Mounds View, MN 55112  
Attn: Repair  
If you are shipping from outside the USA, please contact our Repair  
Department for an RMA prior to your shipment. You can contact us by  
telephone at (612) 785-3500 or by fax at  
(612) 785-9874.  
MT5634ZPX-PCI  
63  
 
Owner’s Manual  
The Multi-Tech BBS  
For customers who do not have Internet access, Multi-Tech maintains a  
bulletin board system (BBS) that mirrors its FTP site. Information  
available from the BBS includes new product information, product  
upgrade files, and problem-solving tips. The phone number for the  
Multi-Tech BBS is (800) 392-2432 (USA and Canada) or (612) 785-  
3702 (international and local).  
The BBS can be accessed by any asynchronous modem operating at  
1200 bps to 33,600 bps at a setting of 8 bits, no parity, and 1 stop bit  
(8-N-1).  
To log on to the Multi-Tech BBS  
1. Set your communications program to 8-N-1.  
2. Dial our BBS at (800) 392-2432 (USA and Canada) or (612) 785-  
3702 (international and local).  
3. At the prompts, type your first name, last name, and password;  
then press ENTER. If you are a first time caller, the BBS asks if  
your name is spelled correctly. If you answer yes, a questionnaire  
appears. You must complete the questionnaire to use the BBS on  
your first call.  
4. Press ENTER until the Main Menu appears. From the Main Menu  
you have access to two areas: the Files Menu and News. For help  
on menu commands, type ?.  
To Download a file  
If you know the file name  
1. From the Main Menu, type F to access the Files Menu; then type  
D.  
2. Enter the name of the file you want to download from the BBS.  
3. If a password is required, enter the password.  
4. Answer Y or N to the automatic logoff question.  
5. Select a file transfer protocol by typing the indicated letter, such as  
Z for Zmodem (the recommended protocol).  
64  
MT5634ZPX-PCI  
 
5 Warranty, Service, and Tech Support  
6. If you select Zmodem, the transfer begins automatically. If you  
select another protocol, you may have to initiate the transfer  
yourself. (In most datacomm programs, the PAGE DOWN key  
initiates the download.)  
7. When the download is complete, press ENTER to return to the  
File Menu.  
8. To exit the BBS, type G and press ENTER.  
If you don’t know the file name  
1. From the Main Menu, type F to access the Files Menu. For a list  
of file areas, type L and press ENTER. Then type L and press  
ENTER again. (If you do not type the second L, all of the files on  
the BBS list.)  
2. Mark each file area you want to examine by typing its list number  
and pressing ENTER.  
3. Enter L to list all the files in the selected file areas. Enter C to go  
forward in the file list and P to go back.  
4. To mark one or more files for download, type M, press ENTER,  
type the list numbers of the files, and press ENTER again.  
5. Enter D. A list of the files you marked appears. Enter E if you  
want to edit the list; otherwise, enter D again to start the download  
process.  
6. Select a file transfer protocol by typing the indicated letter, such as  
Z for Zmodem (the recommended protocol).  
7. If you select Zmodem, the file transfers automatically. If you  
select another protocol, you may have to initiate the transfer  
yourself. (In most data communications programs, the PAGE  
DOWN key initiates the download.)  
8. When the download is complete, press ENTER to return to the  
File Menu.  
9. To exit the BBS, type G and press ENTER.  
MT5634ZPX-PCI  
65  
 
Owner’s Manual  
About CompuServe  
In addition to the BBS, Multi-Tech provides support through  
CompuServe’s Modem Vendor Forum (GO MODEMVEN) under GO  
MULTITECH. You can also download manuals, Help files, drivers,  
Microsoft Mail scripts, and product tips and descriptions from the  
forum’s Multi-Tech library. Refer to your CompuServe documentation  
for special operating procedures.  
About the Internet  
Multi-Tech is a commercial provider on the Internet. We retrieve email  
messages from the our customers on a periodic basis. If you refer to  
receive technical support via the Internet, contact Tech Support at the  
following address:  
Multi-Tech’s web site is located at: http://www.multitech.com  
An ftp site is located at: ftp://ftp.multitech.com  
The ftp server mirrors the Multi-Tech BBS.  
About the Multi-Tech Fax-Back Service  
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 document number 10 for a catalog of available  
documents. For convenience, have your fax number handy:  
_________________________________  
From the catalog, you can order newsletters, white papers, press  
releases, etc. from the sales and marketing index (pages 1–4)or order  
basic modem operation and troubleshooting guides form the technical  
support and engineering index. To order, enter the FB Doc. number of  
the literature you want to receive.  
66  
MT5634ZPX-PCI  
 
Appendix  
 
Owner’s Manual  
Appendix A: Regulatory Compliance  
FCC Regulations for Telephone Line  
Interconnection  
1. This equipment complies with Part 68 of the Federal  
Communications Commission (FCC) rules. On the outside surface  
of this equipment is a label that contains, among other  
information, the FCC registration number. This information must  
be provided to the telephone company.  
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 cord and modular plug is provided  
with this equipment. This equipment is designed to be connected  
to the telephone network or premises wiring using a compatible  
modular jack that is Part 68 compliant. See installation  
instructions for details.  
4. 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  
isn’t 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.  
5. 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.  
6. 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 telephone network, the  
telephone company may request you remove the equipment from  
the network until the problem is resolved.  
68  
MT5634ZPX-PCI  
 
Appendix  
7. 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.  
8. If so required, this equipment is hearing-aid compatible.  
Manufacturer:  
Trade name:  
Model Number:  
Multi-Tech Systems, Inc.  
MultiModemZPX-PCI  
MT5634ZPX  
FCC Registration Number:  
Ringer Equivalence:  
Modular Jack (USOC):  
AU7USA-32234-M5-E  
0.4B  
RJ-11C or RJ-11W  
(single line)  
Service Center in U.S.A.: Multi-Tech Systems Inc.  
2205 Woodale Drive  
Mounds View, MN 55112  
(800) 328-9717  
(612) 785-3500  
(612) 785-9874 FAX  
Fax Branding Statement  
The Telephone Consumer Protection Act of 1991 makes it unlawful for  
any person to use a computer or other electronic device, including fax  
machines, to send any message unless such message clearly contains  
the following information:  
• Date and time the message is sent  
• Identification of the business, or other entity, or other individual  
sending the message  
• Telephone number of the sending machine or such business, other  
entity, or individual  
This information is to appear in a margin at the top or bottom of each  
transmitted page on the first page of the transmission. (Adding this  
information in the margin is referred to as fax branding.)  
Since any number of fax software packages can be used with this  
product, the user must refer to the fax software manual for setup  
details. Typically, the fax branding information must be entered via the  
configuration menu of the software.  
MT5634ZPX-PCI  
69  
 
Owner’s Manual  
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 an interface may consist of any combination of devices  
subject only to the requirement that the sum of the ringer equivalence  
numbers of all the devices does not exceed five.  
Notice: The Industry Canada label identifies certificated equipment.  
This certification means that the equipment meets certain  
telecommunications network protective, operational and safety  
requirements. The Department 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.  
Le présent appareil numérique n’émet pas de bruits radioélectriques  
dépassant les limites applicables aux appareils numériques de la classe  
B prescrites dans le Règlement sur le brouillage radioélectrique édicté  
par le ministère des Communications du Canada.  
70  
MT5634ZPX-PCI  
 
Appendix  
NOTE: This equipment has been tested and found to 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  
of which the receiver is connected.  
• Consult the dealer or an experienced radio/TV technician for help.  
This device complies with Part 15 of the FCC rules. Operation is  
subject to the following conditions: (1) This device may not cause  
harmful interference, and (2) this device must accept any interference  
received, including 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 this equipment.  
MT5634ZPX-PCI  
71  
 
Owner’s Manual  
Product Safety Compliance  
Approved for connection to telecommunications system specified in  
the instructions for use subject to the conditions set out in them.  
Warning: Interconnection directly, or by way of other apparatus,  
of ports marked SAFETY WARNING see instructions for use with  
ports marked or not so marked may produce hazardous conditions  
on the network. Advice should be obtained from a competent  
engineer before such a connection is made.  
It is a condition of approval that the power required by the host and the  
total of all adapter cards installed within the host environment, together  
with any auxiliary apparatus, does not exceed the power specification  
as stated in the Technical Reference Material of the host apparatus.  
The power requirements for the ZPX are:  
Modem operating voltages:  
+12 VDC, -12 VDC, +5 VDC  
Modem power consumption: 1.2 Watts  
In order to maintain the independent approval of this card, it is  
essential that when other option cards are introduced which use or  
generate a hazardous voltage, the minimum creepages and clearances  
specified in the following table are maintained. A hazardous voltage is  
one which exceeds 42.4 VAC peak or 50 VDC. If you have any doubt,  
seek advice from a competent engineer before installing other adapters  
into the host equipment.  
The equipment must be installed such that with the exception of  
connection to the host, clearance and creepage distances shown in the  
following table are maintained between the card and any other  
assemblies which use or generate a voltage shown in that table. The  
larger the distance shown in brackets applies where the local  
environment within the host is subject to conductive pollution or dry  
nonconductive pollution, which could become conductive due to  
condensation. Failure to maintain these minimum distances would  
invalidate approval.  
72  
MT5634ZPX-PCI  
 
Appendix  
Figure A-1. Creepage and Clearance Distances.  
Except at the edge connector, which plugs into the host’s expansion  
slot, clearance distance (Xmm) and creepage distance (Ymm), as given  
in the above table, must be maintained between the communication  
card and any assemblies which use or generate hazardous voltage.  
This apparatus has been approved for the use of the following:  
Auto-calling  
Loop disconnect and MF dialing  
Phone number storage and retrieval by a predetermined code  
Operation in the absence of proceed indication  
Detection of initial and secondary proceed indication  
Automatic storage of last number dialed  
Tone detection-busy  
Auto clear from the originating end  
DTR dialing  
Modem  
PBX timed break register recall  
MT5634ZPX-PCI  
73  
 
Owner’s Manual  
European Low Voltage Directive  
When correctly installed and maintained, the modem will present no  
hazard to the user. When correctly installed the modem will be  
connected to the PSTN or a PW and to a Data Terminal Equipment  
(DTE), whose modem connections comply with ITU-T  
recommendation V.28. The DTE connections are therefore taken to be  
safe voltages (less than ± 30 volts).  
Ports which are capable of connecting to other apparatus are defined as  
SELV. To ensure conformity with EN41003, ensure that these ports  
are only connected to ports of the same type on other apparatus.  
Protection Against Contact with TNV Circuit (Internal  
PC Cards)  
The protective cover is fastened to the modem card by means that will  
only allow a tool to remove the cover.  
Warning: Removal of the protective cover will affect product safety  
and user safety requirements.  
EMC, Safety and Terminal Directive Compliance  
The CE mark is affixed to this product to confirm compliance with the  
following European Community Directives:  
Council Directive 89/336/EEC of 3 May 1989 on the approximation  
of the laws of Member States relating to electromagnetic  
compatibility.  
and  
Council Directive 73/23/EEC of 19 February 1973 on the  
harmonization of the laws of Member States relating to electrical  
equipment designed for use within certain voltage limits:  
and  
Council Directive 98/13/EC of 12 March 1998 on the approximation  
of the laws of Member States concerning telecommunications terminal  
and Satellite earth station equipment.  
74  
MT5634ZPX-PCI  
 
Appendix  
New Zealand Modem Warning Notice  
Use of pulse dialing, when this equipment is connected to the same line  
as other equipment, may give rise to “bell tinkle” or noise and may  
also cause a false answer condition. Should such problems occur, the  
user should NOT contact the Telecom Faults Service.  
The preferred method of dialing is to use DTMF tones, as this is faster  
than pulse (decadic) dialing and is readily available on almost all New  
Zealand telephone exchanges.  
WARNING NOTICE: No “111” or other calls can be made from this  
device during a mains power failure.  
MT5634ZPX-PCI  
75  
 
Owner’s Manual  
Appendix B: Technical Specifications  
Trade Name  
MultiModemZPX-PCI  
Model Numbers  
MT5634ZPX-PCI  
Client-to-Server  
Data Rates  
V.90/K56flex* speeds when accessing an ISP-  
type V.90/K56flex server (actual speed  
depend on server capabilities and line  
conditions)  
Client-to-Client  
Data Rates  
Enhanced V.34 speeds to 33,600 plus 31,200,  
28,800, 26,400, 24,000, 21,600, 19,200,  
16,800, 14,400, 12,000, 9600, 7200, 4800,  
2400, 1200, 0-300 bps  
Fax Rates  
14,400, 12,000, 9600, 7200, 4800, 2400, and  
300 bps  
Data Format  
Serial, binary, asynchronous  
Data Compatibility  
V.90/K56flex, ITU V.34 extended, V.34, ITU  
V.32bis, V.32, V.22bis, V.21, V.22, V.23;  
Bell 212 and 103; ITU V.42, V.42bis  
Fax Compatibility  
ITU Group 3, T.4, T.30, V.21, V.27ter, V.29,  
V.17, and TIA/EIA 578 Class 1, Class 2  
Voice Compatibility  
TIA/EIA IS-101, H.324 (V.8, V.25ter), V.80  
Voice Mode Sampling  
Up to 44.100 kHz (down-sampled to 11.025  
kHz)  
Error Correction  
Data Compression  
ITU V.42 (LAP-M and MNP Classes 2–4)  
ITU V.42bis (4:1 compression) and MNP 5  
(2:1 compression)  
Speed Detection  
Automatic speed detection and switching  
between available speeds  
*Although V.90/K56flex technology is capable of downloads of up to 56 Kbps, FCC  
regulations currently restrict ISP modems to downloads of 53 Kbps.  
76  
MT5634ZPX-PCI  
 
Appendix  
In adverse line conditions, the modem falls  
Fallback  
back from its current operating speed to the  
next reliable slower speed in 2400 bps  
decrements (V.34 mode). If conditions  
improve, the modem falls forward to the  
fastest reliable speed in 2400 bps increments.  
In V.90/K56flex mode, modem falls back and  
falls forward in increments of 2000 bps.  
Modes of Operation  
Full-duplex operation over dial-up lines,  
automatic dialing, automatic or manual  
answer.  
Flow Control  
Software (XON/XOFF), hardware (RTS/CTS)  
Intelligent Features  
Fully AT command compatible, autodial,  
redial, pulse or tone dial, dial pauses, call  
status display, auto-parity and data rate  
selection, keyboard-controlled modem  
options, and nonvolatile memory and on-  
screen displays for modem parameters.  
Command Buffer  
Data Modulations  
40 characters  
FSK at 300 bps, DPSK at 1200 bps, QAM at  
2400, 4800, and 9600 bps (non-trellis), QAM  
with trellis-coded modulation (TCM) at 9600,  
12,000, 14,400, 16,800, 19,200, 21,600,  
24,000, 26,400, 28,800, 31,200, 33,600 and  
56,000 bps  
Fax Modulations  
V.21 CH2: FSK at 300 bps  
V.27ter: DPSK at 4800 and 2400 bps  
V.29: QAM at 9600 and 7200 bps  
V.17: TCM at 14400, 12000, 9600, and 7200  
bps  
Carrier Frequencies:  
V.34/V.90/K56flex  
1600, 1646, 1680, 1800, 1829, 1867,  
1920, 1959, 2000 Hz  
Carrier Frequencies:  
1800 Hz  
MT5634ZPX-PCI  
77  
 
Owner’s Manual  
V.32terbo/V.32bis/V.32  
Carrier Frequencies:  
ITU-T V.22bis/V.22 or  
Bell 212A Standard  
(2400 & 1200 bps)  
Transmit Originate: 1200 Hz  
Transmit Answer: 2400 Hz  
Receive Originate: 2400 Hz  
Receive Answer:  
1200 Hz  
Carrier Frequencies:  
Bell 103  
Transmit Originate: 1270 Hz mark  
1070 Hz space  
(300 bps)  
Transmit Answer: 2225 Hz mark  
2025 Hz space  
Receive Originate: 2225 Hz mark  
2025 Hz space  
Receive Answer:  
1270 Hz mark  
1070 Hz space  
Fax Carrier Frequencies V.21 CH2 (half duplex):  
1650 Hz mark, 1850 Hz space for Transmit  
Originate;  
1650 Hz mark, 1850 Hz space for Transmit  
Answer  
V.27ter: 1800 Hz Originate/Answer  
V.29 QAM: 1700 Hz Originate/Answer  
V.17 TCM: 1800 Hz Originate/Answer  
Diagnostics  
Power-on self-test (POST) and local analog  
loop  
Transmit Level  
-10dB  
Frequency Stability  
Receiver Sensitivity  
AGC Dynamic Range  
Serial Interface  
Bus Type  
±0.01%  
-43 dB under worst-case conditions  
43 dB  
ITU-T V.24/V.28  
PCI Local Bus Rev.2.1  
78  
MT5634ZPX-PCI  
 
Appendix  
Two RJ-11 phone jacks and two plugs for  
Connectors  
microphone, and speakers  
Cables  
One RJ-11 phone cable  
Environmental  
Temperature range 0° to 50° C (32° to 120° F),  
humidity range 20–90% (non-condensing)  
Power Requirements  
Dimensions  
150 mA @ 5 VDC; 5 mA @ ±12 VDC  
0.7" W × 4.8" H × 5.8" L  
1.8 cm × 12.2 cm × 14.7 cm  
10 years  
Limited Warranty  
MT5634ZPX-PCI  
79  
 
Owner’s Manual  
Appendix C: ASCII Conversion Chart  
CTRL CODE HEX DEC CODE HEX DEC CODE HEX DEC CODE HEX DEC  
@
A
B
C
D
E
F
G
H
I
NUL  
00  
0
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SP  
!
20 32  
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@
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SOH 01  
STX  
ETX  
EOT  
02  
03  
04  
"
#
$
%
&
ENQ 05  
ACK  
BEL  
BS  
06  
07  
08  
09  
(
HT  
)
J
LF  
0A 10  
0B 11  
0C 12  
0D 13  
0E 14  
0F 15  
10 16  
11 17  
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1A 26  
1B 27  
1C 28  
1D 29  
1E 30  
1F 31  
*
J
j
k
l
K
L
VT  
+
,
K
L
FF  
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
[
CR  
-
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
[
m
n
o
p
q
r
SO  
.
SI  
/
DLE  
DC1  
DC2  
DC3  
DC4  
NAK  
SYN  
ETB  
CAN  
EM  
0
1
2
3
4
5
6
7
8
9
:
s
t
u
v
w
x
y
z
{
SUB  
ESC  
FS  
;
\
<
=
>
?
\
|
]
GS  
]
}
^
RS  
^
~
_
US  
_
DEL 7F 127  
NUL  
SOH  
STX  
ETX  
EOT  
ENQ  
ACK  
BEL  
BS  
Null, or all zeros  
Start of Header  
Start of Text  
End of Text  
End of Transmission  
Enquiry  
Acknowledge  
Bell or Alarm  
Backspace  
Horizontal Tab  
Line Feed  
VT  
FF  
CR  
SO  
Vertical Tab  
Form Feed  
Carriage Return  
Shift Out  
Shift In  
Data Link Escape  
Device Control 1  
Device Control 2  
Device Control 3  
Device Control 4  
SYN  
ETB  
CAN  
EM  
SUB  
ESC  
FS  
GS  
RS  
US  
DEL  
Sync.  
End Transmission Block  
Cancel  
End of Medium  
Substitute  
SI  
DLE  
DC1  
DC2  
DC3  
DC4  
NAK  
Escape  
File Separator  
Group Separator  
Record Separator  
Unit Separator  
Delete  
HT  
LF  
Negative Acknowledge  
80  
MT5634ZPX-PCI  
 
Appendix  
Appendix D: FLASHWINFlash Upgrade  
Introduction  
Your modem is controlled by semi-permanent software, called  
firmware, that is stored in flash memory. Firmware is nonvolatile; that  
is, it remains stored in memory when the modem is turned off.  
However, it can be changed by either the manufacturer or the user as  
bugs are fixed or new features are added.  
Since the firmware in your modem is stored in flash memory, you can  
upgrade it yourself in a few minutes by using the following procedures.  
FLASHWIN  
1. Copy FLASHWIN.ZIP and the downloaded .HEX file to a  
temporary directory.  
2. After unzipping FLASHWIN.ZIP, run FLASHWIN by double-  
clicking on its icon or file name.  
3. Select the COM port your modem is on and the speed at which  
you want to program.  
4. Enter the name and path of the *.HEX file you want to load into  
the modem.  
5. After you verify your selections, click Perform Flash to load the  
firmware into the modem.  
6. When Loading Status reaches 100%, the modem is upgraded and  
you can close FLASHWIN.  
Your modem is now updated. You can now open your terminal  
program to reprogram your modem parameters, if necessary, or to  
confirm the update by typing ATI in the terminal window.  
MT5634ZPX-PCI  
81  
 
Owner’s Manual  
82  
MT5634ZPX-PCI  
 
Index  
 
Owner’s Manual  
B , 35  
C , 35  
Index  
E , 36  
F , 36  
A
answering machine  
capabilities , 8  
test , 26  
H , 36  
I , 62  
L , 37  
ASCII codes , 80  
AT commands , 8  
#S , 31  
#S= , 31  
%B , 43  
%C , 43  
&&S , 44  
&B , 39  
M , 37  
N , 37  
O , 30, 32, 37  
Q , 38  
S= , 38  
S? , 38  
V , 38  
X , 38, 55  
Y , 39  
&C , 39  
&D , 39  
Z , 39  
&F , 40  
AT&T  
&G , 40  
&J , 40  
call card tones , 34, 36  
attention code , 34  
&K , 40  
Auto-answer , 45  
&M , 40  
&Q , 40  
B
&S , 41  
&T , 41  
&V , 41  
&W , 30, 32, 41  
&Y , 41  
&Z= , 41  
+++AT<CR> , 34  
+ES= , 44  
-C , 43  
backspace character , 45  
BBS  
Multi-Tech , 64–81  
timeout , 57  
Bell 212A mode , 35  
blacklist , 43  
break signal , 42  
C
\G , 42  
\J , 42  
\K , 42  
\N , 42  
\Q , 42  
\V , 43  
\X , 43  
A , 34  
call waiting , 30, 56  
carriage return character , 45  
COM port installation , 19  
comma pause , 45  
commands  
Answer , 34  
Async Communications Mode , 40  
Auxiliary Relay Control , 40  
Carrier Control , 35  
A/ , 34  
AT , 34  
Communication Standard , 35  
84  
MT5634ZPX-PCI  
 
Index  
Communications Mode , 40  
Data Buffer Control , 42  
Data Calling Tone , 43  
Data Compression Control , 43  
DCD Control , 39  
XON/XOFF Pass-Through , 43  
CompuServe , 58, 66  
configuration  
selecting , 41  
storing , 41  
Dial , 35  
viewing , 41  
Dial Stored Telephone Number , 36  
DSR Control , 41  
DTR Control , 39  
Echo Command Mode Characters ,  
36  
configuring  
communications software , 28–81  
conflicting device list , 20  
connect messages , 29, 49  
connectors  
Echo Online Data Characters , 36  
Enable Synchronous Buffered Mode ,  
44  
LINE , 18  
MIC IN , 18  
PHONE , 18  
Error Correction Mode Selection , 42 Contents, package , 8  
Hook Control , 36  
D
Information Request , 36  
Load Factory Default Settings , 40  
Local Flow Control Selection ,  
40, 42  
Long Space Disconnect , 39  
Modem Port Flow Control , 42  
Modem Reset , 39  
Modulation Handshake , 37  
Monitor Speaker Mode , 37  
Protocol Result Code , 43  
Read Register Value , 38  
Result Code Format , 38  
Result Code Selection , 38  
Result Codes Enable/Disable , 38  
Return Online to Data Mode , 37  
Select Stored Configuration , 41  
Self-Test , 41  
data , 7  
data buffering , 40  
data compression , 7  
data features , 7  
data mode , 37  
data rates (bps) , 76  
default settings , 40  
detect AT&T call card tone , 34  
device conflict  
resolving , 54  
dialing tones , 46  
disconnect delay , 45  
E
enable/disable V25 data calling tone  
(S35) , 46  
ENTER key , 34  
error correction , 7  
escape character , 45  
escape sequence , 34  
Set Break Control , 42  
Set Register Value , 38  
Speaker Codec Loopback , 44  
Store Current Configuration , 41  
Store Telephone Number , 41  
V.22bis Guard Tone , 40  
V.32 Auto Retrain , 39  
View Current Configuration , 41  
View Numbers in Blacklist , 43  
MT5634ZPX-PCI  
85  
 
Owner’s Manual  
F
M
fall-forward , 7  
fallback , 7, 37  
fax , 58  
command set , 8  
features , 8  
transmission speeds , 8  
fax-back service , 66  
FCC Regulations , 68–81  
firmware  
manual conventions , 12  
maximum dial rate (S37) , 46  
Microsoft Fax , 25, 26  
accessing , 26  
MNP 5 data compression , 7, 43, 57  
MNP error correction , 7, 42  
Multi-Tech  
fax-back service , 66  
Multi-Tech BBS , 64–81  
MultiModemZPX  
upgrading , 81  
flash memory , 81  
FLASHWIN , 81  
flow control , 40, 42, 58  
operation , 22  
O
on-hook/off-hook , 36  
online command mode , 37  
outside line  
G
guard tone , 40  
dialing , 30  
H
P
H.324 , 44  
handshake , 37  
hanging up , 36  
hangup delay , 45  
headphone , 18  
package contents , 8  
pause  
dialing , 45  
phone line connection , 18  
Plug-and-Play , 7  
port address , 16  
I
product safety compliance , 72–81  
inactivity timer , 43  
inactivity timer (S30) , 46  
initialization strings , 29  
Installation  
requirements , 14  
installation , 15  
R
remote configuration , 30  
escape character , 31  
removing  
hardware , 14–81  
Windows 95 drivers , 19  
Internet , 66  
previous modem from Windows 95 ,  
21  
repeat last command , 34  
resetting the modem , 39, 40  
result codes , 43, 55  
table , 49  
IRQ , 16  
L
retrain , 39  
rings  
line feed character , 45  
loopback test , 26  
number of , 45  
86  
MT5634ZPX-PCI  
 
Index  
S
T
S-registers , 45–81  
reading , 38  
S0 , 45  
S1 , 45  
S10 , 45  
technical specifications , 76  
technical support , 62, 66  
telephone cable , 18  
telephone numbers  
storing , 8  
S11 , 46  
testing  
S2 , 45  
S28 , 46  
S3 , 45  
S37 , 56  
data functions , 23  
fax functions , 25  
voice functions , 26  
tones  
S4 , 45  
dialing , 46  
S5 , 45  
S6 , 45  
troubleshooting , 20  
typographic conventions , 12  
S7 , 45  
S8 , 45  
U
S9 , 31  
setting , 38  
upgrading the modem , 81  
V
safety , 15  
safety warnings , 15  
serial port baud rate , 29  
service , 63  
setup password , 31  
simple operations , 22  
software  
configuration , 23, 28–81  
Software User License Agreement , 61  
sound card , 21  
speaker  
V.22 mode , 35  
V.25 , 43  
V.34 modulation , 46  
V.42 eror correction , 42  
V.42 error correction , 7  
V.42bis data compression , 7, 43  
V.90  
support  
V.8bis sequence , 9  
video , 44  
controlling , 37  
speakerphone , 8, 26, 27  
specifications , 76  
speed conversion (data buffer) , 40, 42  
speed, transmission  
fax , 8  
static electricity precautions , 17  
storing  
current configuration , 29  
telephone numbers , 8, 41  
synchronous buffered mode , 44  
voice  
command set , 8  
features , 8  
W
wait before dialing , 45  
wait for carrier , 45  
warranty , 60  
WinCIM , 58  
MT5634ZPX-PCI  
87  
 
Owner’s Manual  
Windows 95 drivers , 19  
installing , 19  
removing , 21  
World Wide Web , 66  
X
Xmodem , 57  
Y
Ymodem/G , 57  
Z
Zmodem , 57  
88  
MT5634ZPX-PCI  
 

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