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Motorola
SM56 Modem
Quick Start User's Guide
Contents
1 Overview
2 Introduction
3 Personal Computer Requirements
4 Preparing the Computer for SM56 Installation
5 Understanding Sound Card Compatibility and Installing
Hardware
6 Installing SM56 Software on Windows 95/98 and Windows
7 Installing SM56 Software on Windows NT 4.
8 Verifying Proper Modem Installation
9 Changing the Operating System
10 Using the SM56 Modem
11 Un-installing and Upgrading the SM56 Modem
12 Troubleshooting
13 Reporting Problems and Contacting the Modem Supplier
14 Understanding Microsoft Windows Logo Certification
15 An Overview of the V.90 Protocol
Appendix A SM56 Spcifications
1 Overview
This document helps the OEM, system integrator, VAR, and end user with host system selection and proper modem hardware and software installation. It lists qualified personal computer systems, and explains proper modem usage. This document helps you select CPUs, and it explains the tradeoffs associated with different processors. It explains the use of the SM56 Data/ Fax/Voice modem with various sound card configurations. It also aids you in troubleshooting and testing the SM56 equipped system.
2 Introduction
Motorola's SM56 Modem is a feature-rich modem at an attractive price. It provides high-speed communications between your personal computer and a remote location, such as an Internet Service Provider (ISP), so you can:
Receive data at up to 56 Kbps in V.90 or K56flex modes Get automatic fallback to V.34 (33.6 Kbps) rates in bad line conditions and on non-V.90/K56flex headends
Send and receive faxes on your personal computer at rates up to 14.4 Kbps Use your computer as a video phone to place and receive video phone calls. Use your computer as a telephone answering machine (TAM) -- not available on Data/Fax modems. Use your computer to conduct hands-off speakerphone voice calls (Data/ Fax/Speakerphone modems only).
Important : There are three different SM56 modem types, and each supports a different feature-set, as follows:
Product Name Modem Type Main Feature-set Supported
1.Motorola SM56 PCI Fax Modem Data/Fax only All data and fax modes No telephone answering machine (TAM) No speakerphone No caller ID No distinctive ring
- Motorola SM56 PCI Voice Modem Data/Fax/TAM All data and fax modes Telephone answering machine (TAM) Caller ID and distinctive ring No speakerphone
- Motorola SM56 PCI Speakerphone Data/Fax/TAM/Speakerphone All data and fax modes Modem Telephone answering machine (TAM) Full duplex speakerphone
You can check which modem you have by opening Modems in the Control Panel ( Start->Settings->Control Panel , then double click on the Modems icon). On the main window the product name of your installed modem is displayed.
Level 2 Cache Benefits
Level 2 (L2) cache is an instruction memory (SRAM) bank that resides outside the CPU core. It holds many instructions close to the CPU, to reduce the need for the processor to use slow access cycles fetching instructions from main memory (DRAM). Eliminating most CPU accesses to main memory considerably improves overall system performance.
The SM56 modem works best when a minimum of 256K L2 Cache is installed on the computer system motherboard to minimize processor loading. Intel's Celeron (266MHz PII) systems do not have L2 cache. Although the SM operates on those systems, host processor loading increases in the absence of L2 cache.
Compatible Operating Systems
The SM56 modem will run on the following operating systems:
Windows 95 (OEM Service Release 2.0 or later) Windows 98 Windows NT 4. Windows 2000 DOS Box under Windows 95/98.
Important: The modem drivers for Windows 9x, Windows NT 4.0, and Windows 2000 are different. Make sure you have the correct drivers for your OS before attempting to install the SM56.
System RAM Requirements
The SM56 operates on systems that have the minimum RAM required by the installed operating system. As with L2 cache, the more main memory, the better. This reduces slow hard-disk swapping and improves overall system performance....especially when executing numerous concurrent processes.
4 Preparing the Computer for SM56 Installation
To ensure problem-free installation of the SM56, ensure that an Interrupt Request (IRQ) line is available, as follows.
- In Win95/98, open the Control Panel.
- Double click the System icon.
- Select the Device Manager tab.
- Highlight the Computer icon.
- Select the Properties radio button.
- Ensure that the Interrupt Request (IRQ) radio button is selected.
This displays the IRQ lines that are in use on the computer. Available/unused lines are not shown on the list. The SM56 PCI software modem can use an IRQ in the range 3 through 15, inclusive. If there is no IRQ line available for the SM56 disable one of the COM ports in the BIOS and use it's IRQ.
Note: If you are using a Windows 95/98 DOS box application, the modem requires two IRQs. Refer to the Troubleshooting section in this document, or to the on-line User's Guide for more information on DOS application support. You can access the User's Guide through the SM56 System tray helper application (click on the icon on the System Tray, immediately to the right of the Task Bar).
Also, you must ensure that one of COM Port 2, 3, or 4 is available for the SM56, as follows:
- Open the Windows Control Panel.
- Double click the System icon.
- Choose the Device Manager tab.
- Expand the Ports (COM and LPT) branch to see which COM ports are already installed.
To install the SM56 so that it is accessible to older application software and DOS programs, the modem needs to be installed on one of COM port 2, 3, or
- If none of these ports are available, you must disable one of them in the BIOS.
5 Understanding Sound Card Compatibility and
Installing the SM56 Hardware
Note: This section applies only to Data/Fax/Speakerphone modems.
Before discussing modem board installation, let's review the optional sound card connections for the SM56. Recall that SM56 Data/Fax/TAM modems do not support the sound subsystem, even though you can record and play back answering machine messages through your sound card using them.
Sound Card Compatibility:
The SM56 requires a sound card to use its speakerphone capabilities. The Data/Fax/TAM modem requires the sound card for local message playback which occurs through the host PC bus, not via external wire connections. For this reason there are typically no TAPI connectors or speaker/microphone jacks provided on Data/Fax/TAM and Data/Fax modems. Instead, these modems usually have a local call progress speaker mounted on them, while
You may be able to create a special cable or use a T-splitter to connect one microphone to the input on the modem and the sound board simultaneously.
The speaker out jack on the modem board can be used in one of two ways:
To directly connect powered speakers to it. To connect it to the sound card line-in jack (this allows the speakers to remain plugged into the sound card at all times).
SM56 Hardware Installation Procedure:
- Power down the personal computer.
- Locate a vacant PCI bus connector.
- If using the SM56 Data/Fax/Speakerphone modem, connect the sound subsystem interface cable(s) to the modem card (via the internal TAPI connector or using the audio jacks -- refer to the information above on sound card compatibility.)
- Connect the modem Line input to an analog phone jack using an RJ- phone cable. Optionally, connect a telephone handset to the Phone input on the line interface card.
- Replace the personal computer cover and power it back on.
6 Installing SM56 Software on Windows 95/98 and
Windows 2000
Note: Windows Plug and Play assigns the modem a COM port number. To support older software applications and Windows 9x DOS games the SM installation software attempts to negotiate a COM port number in the range of 1-4. If the install picks a higher COM port, you can force the COM port selection via the SM56 System Tray applicationafter install is complete.
Installing on Windows 95/
( Note : The Install Wizard may vary slightly with different versions of the OS and different service packs)
On starting Windows for the first time after installing the SM56 modem card, the Windows Configuration Manager detects the new hardware, assigns resources to it, and then displays a window requesting the modem software drivers. This indicates that the Configuration Manager is looking for the
information (INF) file, which contains information about the modem, including device type (Modem), device driver information (the name of the driver that will control the modem) and the AT command/response sets that it supports.
In response to the request window. Select Driver from Disk Provided by Hardware Manufacturer (or Have Disk depending on the OS version) and browse to where the SM56 drivers are located. Windows should find the information on the disk and identify the device as a SM56 Modem. It then copies the files from the install disk to the computer.
Important : The install program may display (particularly on Windows 95) a message box that reports Cannot locate file .... If this occurs, browse and re-point to where the SM56 driver files are located. Then click OK. Installation will now complete.
On Data/Fax/TAM and Data/Fax/Speakerphone modems, another device is found after the modem has been installed. Windows notifies you that it has found a Serial Wave Device for the modem and prompts for a Wave Device driver. Re-point to the SM56 driver location and click OK.
When these two devices are installed, the SM56 Modem Setup program runs.
The modem setup program for PCI does not prompt for user input during installation. It auto-detects the installed OS country and language selections and defaults the install to those. An upgrade from a previous driver build leaves these settings as before. If you wish to change these settings, and/or the COM port selection, you may do so via the SM56 System tray helper application (click on the icon on the System Tray, immediately to the right of the Task Bar) after setup is complete. Also, for SM56 Data/Fax/Speakerphone modems the microphone and speaker gain selections may be done via this application.
Note: The SM56 also installs a helper utility on the Windows System Tray (right side of the Task Bar). This application includes real time modem status (dialing, negotiating, connect rate, etc.), in addition to user selection for COM port, country and language, and enable/disable Windows 9x DOS box support. There is also an audio test included, which allows you to verify if your sound subsystem supports Direct X 5.0 (or later) -- needed to hear call progress (dialing and negotiation).
Windows 9x DOS box support (not supported on Windows 2000) is disabled by default after the SM56 is installed. After install is complete, you must enable it via the SM56 System tray helper application (click on the icon on the System Tray, immediately to the right of the Task Bar). Make sure the DOS box check box is checked. You do not have to restart the computer for DOS box enabling to take affect.
7 Installing SM56 Software on Windows NT 4.
Note: There is no More Info button under the Modems icon on Windows NT 4.0. Instead, you need to open some terminal application, such as Hyperterminal, and issues the ATI commands manually.
Verifying SM56 Hardware Operation
To verify correct SM56 modem card hardware operation, you can use the following local analog loopback (LAL) test procedure.
- Important: Remove the telephone line connector from the modem card.
- Select Start.
- Select Programs --> Accessories-->HyperTerminal.
- Double click the Hypertrm.exe icon.
- Optionally, select a connection name and icon.
- In the Connect Using window, select Motorola SM56...... modem. Click OK.
- Enter a number in the Phone Number box...any number since we will not be dialing it. Click OK. 8.On the next screen select Cancel.
- Enter AT and hit . The response OK should appear.
- Enter ATS46 = 23 and hit .
- Enter AT&T1 and hit . Wait a few seconds.
- Type some letters at the keyboard. If the hardware is functioning correctly, the letters you type appear on the HyperTerminal display.
- To exit this test mode, type +++ in quick succession (note no carriage return) to escape to command mode, then type ATH .
9 Changing the Operating System
The SM56 Modem software is the same for Windows 95 and Windows 98. If the modem is installed on Windows 95 and you upgrade to Windows 98, the SM56 will continue to function as before. No new drivers are required.
However, if you change from Windows 95/98 to Windows NT 4.0 or Windows 2000 you must get a new set of drivers for that operating system. The SM modem software for Windows 9x will not work under those OS's. Likewise, Windows NT 4.0 drivers will not work on Windows 2000. Contact your direct modem vendor or PC supplier for drivers, or visit their Web sites.
10 Using the SM56 Modem
32-Bit Windows 95/98 Applications Because 32-bit Windows 95/98 applications use TAPI for communicating with modems, using the SM56 is as easy as selecting the SM56 modem by name from the list of available modems.
16-Bit Windows 95/98 Applications Because 16-bit applications cannot use the TAPI interface, there is a bit more setup required.
- Select Motorola SM56 modem from the list of supported modems (if the SM56 modem is not shown, select Hayes Compatible modem ...see also REVHIST.TXT for other selections).
- Configure the application's COM port selection. Use the COM port assigned to the SM modem, e.g. COM 2.
- If the application requires it, enter specific AT commands for the SM modem. Normally you will not need to do this. (For a full list of AT commands supported by the SM56 refer to the SM56 on-line User's Guide ). Some of the more common AT commands are listed below.
DOS-Based Applications and Games
Importnt: DOS box support is disabled after the SM56 is installed. After install is complete, you must enable it via the SM56 System tray helper application (click on the icon on the System Tray, immediately to the right of the Task Bar).Make sure the DOS box check box is checked. You do not need restart the computer to complete DOS box enabling.
The SM56 can be used by DOS applications only through a Windows 95/ DOS box. Win 9x DOS box support is achieved by virtualizing the standard I/ O and IRQ assigned to a COM port. This means that the SM56 drivers capture and redirect all I/O to/from the standard I/O address for the COM port to which it assigned. In simpler terms, you tell the application the COM port that the SM56 modem is installed on, and then use all the standard I/O and IRQ settings. Standard I/O addresses and IRQs for COM Ports 1-4 are as follows:
COM Port IO Address IRQ 1 3F8 4 2 2F8 3 3 3E8 4 4 2E8 3
To determine the SM56 COM port number via the Modems icon in the Control panel. The COM port number to which the SM56 modem is assigned is listed here. Configure your application to use this COM port. For example, if the SM56 modem has been assigned COM 2, configure your application to communicate through COM 2.
Some of the more common AT commands used by applications are:
Initialization* AT&F
Hangup ATH
If , after an SM56 upgrade, you have problems with the new driver, you can restore your previous SM56 software installation as follows. Perform all of the following steps.
- Open the Control Panel. Select Add/Remove programs.
- If SM56 Modem is in the list of installed programs, click on SM Modem , then Click Add/Remove to run the un-install program.
- Restart the computer.
- Upon restart, re-install the SM56 modem from the backup directory at \ Windows\Motorola\Motbak95.
This will reinstall your previous modem software.
SM56 Software Upgrade Procedure (Windows NT 4.0)
- Make a backup of your current modem software version -- copy all the files in \Windows\Motorola\MotsetNT4 folder.
- Un-install your current software -- run the SM56 Modem Uninstall using Add/Remove Programs in the Windows Control Panel.
- Restart the computer and perform a complete SM56 modem install using the new drivers.
Recovering From an Unsuccessful Upgrade (Windows NT
4.0)
- Un-install your current software -- run the SM56 Modem Uninstall from Add/Remove Programs in the Windows Control Panel.
- Restart the computer and perform a complete SM56 modem install again, this time using your previous software version backup files (see Step 1 of NT 4.0 upgrade procedure).
12 Troubleshooting
If there is a problem making or receiving a call or transmitting data, and your communications application does not explain the problem, check the following list of symptoms and tips.
The modem installs at COM 5 (or higher)
Some communications applications do not communicate with a COM port higher than COM4. If the SM56 installs on COM5 or higher, force the modem to a lower COM port via the SM56 System tray helper application (click on the icon on the System Tray, immediately to the right of the Task Bar).
Windows 95/98 DOS box applications do not work with the
modem
By default DOS box support is disabled after installing the SM56 modem. You must enable it via the SM56 System tray helper application (click on the icon on the System Tray, immediately to the right of the Task Bar). Make sure the DOS box check box is checked. You do not need to restart the computer to complete DOS box enabling.
If the Enable DOS box check box is already checked (i.e. enabled), and DOS box application still do not work, try:
- Open the Control Panel.
- Double click the System icon.
- Expand the Modem branch.
- Double click the Motorola SM56 modem.
- Select the Modem tab. Make a note of the COM port number.
- Select the Resources tab. Make a note of the IRQ number listed.
- For DOS support to operate correctly, the SM56 modem cannot occupy the standard IRQ for the COM port number.
- Uncheck the Use Automatic Resources check box.
Double click on the Interrupt Request label and change the IRQ to a different number that is not in conflict with another device. (If there is no free IRQ: free one, or change other device IRQ levels to free a non- standard IRQ).
There is no dial tone
- Ensure that the telephone cable is securely connected at both ends.
- Unplug the telephone line cable from the computer, and connect it directly to a telephone from the wall outlet. Check for a dial tone. If there is none, the problem is in the telephone line or system. Call the service provider.
The modem cannot complete a connection to another
modem
- Ensure that your modem is dialing the correct number. Ensure that you've specified the correct area code, if one is required.
- Determine whether the remote modem is correctly configured to communicate with yours.
You cannot enter tone selections successfully when calling
tone-driven applications
- When dialing a remote system that requires you to enter selections using the telephone keys, such as a voice-mail depot or bank-account information provider, you can lengthen the duration of the tones your modem sends, so that the remote system can detect them better. To adjust DTMF tone length, use the AT+VTD n command, where n specifies the tone duration.
The modem does not respond to AT commands
- Ensure that your communications software is configured to use the same COM port as the modem's COM port.
- Reset modem parameters to default options by entering AT&F; then re- enter custom options.
- SM56 builds after Build 50 require setting the S46 register to 23 before AT&T1 will perform the Local Analog Loopback (LAL) hardware test.
The modem responds to commands, but they do not
appear on the screen
Ensure that the local display echo option is enabled by entering ATE1.
You've installed a new peripheral device; now the modem
does not work
- In the Windows desktop tray, select Start.
- Select Help. The Windows Help Topics window appears.
- Select the Contents tab.
- Select If You Have a Hardware Conflict.
- A series of troubleshooting actions appears. Follow the appropriate sequence.
You hear feedback (noise) from the PC sound system
(Data/Fax/Speakerphone modems)
- Position the speakers at least three feet (1 meter) away from the microphone.
- Ensure that the speakers are facing away from the microphone.
- Turn down the speaker volume.
- Speak into the microphone at a distance of at least 12 inches (30 cm) from your mouth. Minimize background noise.
- If there is still feedback, turn off the microphone boost, under the volume control panel.
The modem connects; then meaningless characters
appear
- Open the Control Panel. Double click the Modem icon.
- Select the Motorola SM56 modem
- Click on Properties.
- Select Connection.
- Click on Advanced.
- Check the Use Error Control-Required to Connect box.
The modem cannot connect; the Error Control option is
selected
The modem may be connecting at a rate higher than appropriate for the line conditions.
- Use the AT%B command to limit the SM56 maximum connection rate. (For a list of AT commands, refer to the on-line User's Guide .)
- Lower the rate, using AT commands, until the problem is corrected. You can add AT commands to do this; refer to the next section.
How to Add AT Commands
- Open the Control Panel.
- Double-click the Modems icon.
- Select the Motorola SM56.... modem.
- Click on Properties.
- Select Connection.
To receive the logo, a product must show proof of compatibility with Windows 95/98 and NT. These include making sure that a device:
Installs and registers itself properly with the operating system Is reliably functional and stable Removes itself (minus its core components) using an automated uninstaller Supports Universal Naming Conventions (UNC) and Long File Names (LFN)
What does the logo mean for a product such as the SM56 modem? It means that Motorola and its OEMs, system integrators, and VARs can use the Windows logo on their products and packaging, and on advertising, collateral, and marketing materials. This signals end users that the SM56 software modem is tested and fully functional on Windows 95/98 and Windows NT; that it is designed to provide optimum usability and compatibility; and that it takes advantage of the latest technologies provided by these operating systems. It makes users feel more comfortable about purchasing the product, and it assures them of more complete satisfaction while using it.
The Windows logo also means that the qualified product gets included on Microsoft's Windows Hardware Compatibility List (HCL) under "Logo," reinforcing to customers and end-users alike that it meets Microsoft's strict requirements and operates properly with Windows operating systems.
15 An Overview of the V.90 Protocol
In February 1998, the International Telecommunications Union (ITU) formulated the V.90 industry-standard protocol for 56K modems. Before the adoption of the V.90 standard, 56K modems complied with one of two pre- standard implementations: K56flex or X2 technology. Unfortunately for ISPs and end-users, these technologies were not compatible. ISPs had to worry about which standard to employ. End users had to be sure to purchase modems compatible with their ISP's equipment.
Upgrading Motorola's SM56 K56flex modems to V.90 is a software-only upgrade. There is no change to the line interface hardware. This makes it easy for pre-V.90 users to upgrade their system to V.90 compliance.
Note : sometimes V.90 is referred to as V.PCM. PCM is an acronym for Pulse Code Modulation. With V.90, high-speed downstream (from Internet to personal computer) data transmission is accomplished using PCM techniques. Before the ITU formulated its standard V.90 protocol, the industry typically referred to it as V.PCM. This name is fading from use.
V.90 technology allows users to connect to the Internet at rates up to twice as fast as those of V.34 (33.6Kbps) modems. The maximum receive (downstream) rate is 56Kbps, while the return path (upstream) connects at V. 34 rates up to 33.6 Kbps. This is perfect for Internet connections, where most data is transferred downstream.
The SM56 begins connections by attempting a V.90 connection to the headend. If the headend is not V.90, the SM56 automatically switches to K56flex mode. If K56flex mode fails (when, for example, the headend uses X technology, or there is a noisy phone line condition), the SM56 drops to V. rates. This auto-mode switching mechanism ensures maximum compatibility with all remote headends.
On the Web you can visit www.v90.com for a wealth of information on V. technology, including:
A list of ISPs that support V. The latest news on V. White papers on the V.90 standard Technology descriptions Frequently asked questions (FAQs)
Appendix A: SM56 Specifications
Compatibility with Windows 95/98 and Windows NT 4.0/5.0 communication applications Compatibility with communication applications that run in an Windows 95/ DOS box. An powerful installation engine. Plug and Play operation Support for various data modulation modes:
- V.90 connection rates if the headend is a true V.90 location. V. downstream rates to 56Kbps. Upstream rates to 33.6Kbps (V.34).
- Fallback to K56flex® mode if the headend is K56flex, not V.90. K56flex® downstream rates to 56Kbps. Upstream rates to 33.6Kbps(V. 34).
- Connection at V.34 rates (33.6 Kbps) if the headend is not V.90 or K56flex®.
- V.32bis, V.32, V.22bis, V.23, V.22/B212, V.21, Bell 103. Error correction - V.42, LAPM, MNP2-4. Data compression - V.42bis, MNP5. Fax modes supported - V.17, V.27ter, V.29. Data, fax, and telephone answering machine (TAM) support on Data/Fax/TAM and Data/Fax/Speakerphone modems. Full voice support on Data/Fax/Speakerphone modems, including full-duplex speaker phone with acoustic and line echo cancellation. Answering machine capability with PCM and IMA ADPCM audio formats -- Data/Fax/TAM and Data/Fax/Speakerphone modems. Caller ID (USA and Canada) -- not available on Data/Fax modems. Distinctive Ring (USA and Canada) -- not available on Data/Fax modems. Pulse and tone dialing and call progress monitoring. Call progress audio channeling through the PC sound system (using Direct X 5.0 and later).
