Motorola SM56 User Manual 2
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
7 Installing SM56 Software on Windows NT 4.0
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 Features
Appendix B Software License Agreement
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 featureset, as follows:
Product Name Modem Type
Main Feature-set
Supported
1.Motorola SM56 PCI Fax Modem Data/Fax only All data and fax modes
2. Motorola SM56CPQ PCI Modem No telephone answering
machine (TAM)
No speakerphone
No caller ID
No distinctive ring
______________________________________________________________________________
________
1. Motorola SM56 PCI Voice Modem Data/Fax/TAM All data and fax modes
Telephone answering
machine (TAM)
Caller ID and
distinctive ring
No speakerphone
______________________________________________________________________________
________
1. 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 the SM56 Control Panel application (Start-
>Settings->Control Panel, then double click on the SM56 Modem icon). On the applications'
main window the product name of your installed modem is displayed.
Personal-computer OEMs that bundle the SM56 can benefit from sizable cost reductions,
hardware reduction, and lower power consumption. End users benefit from quick, easy and
affordable software upgrades, which help them keep current with the latest communications
technology.
Please check with your direct modem supplier for the latest software updates and other product
information.
3 Personal Computer Requirements
Motorola performs rigorous, exhaustive testing on its modems. It has developed a list of
recommended personal computer features that perform well with the SM56. The information
includes qualified CPUs, Level 2 cache requirements, operating systems, RAM requirements,
and third-party sound card compatibility. However, in today's dynamic technology markets, it is
not possible to test all components and combinations on all systems.
This section outlines minimum system requirements for SM56 operation. On these systems,
CPU loading was found to be acceptable and the modem demonstrated good performance over
the entire network model.
Important: SM56 operation is not limited to the personal computer systems listed here.
Recommended CPUs
The SM56 modem has been qualified (tested for processor loading and TSB network model
coverage) on the following processors:
• Intel Pentium, 150MHz with MMX, 256K Level 2 (L2) cache minimum
• Intel Pentium, 200MHz, 256K L2 cache minimum
• Intel Pentium II
• Intel Pentium Pro
• Intel Celeron (Pentium II, 266MHz, no L2 cache)
• AMD K6-2 with 3DNow!, 256K L2 cache
The SM56 functions satisfactorily on the following systems. However, it has not been fully
qualified (it was not tested for processor loading or TSB performance):
• AMD K6, 233 MHz, 256K L2 cache
• Cyrix MII, 266MHz, 256K L2 cache
The SM56 does not function on the following CPUs, whose floating-point performance is
insufficient:
• Cyrix MediaGX
• Cyrix MediaGXM
• Cyrix 6x86
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 SM56 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
• DOS Box under Windows 95/98.
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.
1. In Win95/98, open the Control Panel.
2. Double click the System icon.
3. Select the Device Manager tab.
4. Highlight the Computer icon.
5. Select the Properties radio button.
6. 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
modem Control Panel application.
Also, you must ensure that one of COM Port 2, 3, or 4 is available for the SM56, as follows:
1. Open the Windows Control Panel.
2. Double click the System icon.
3. Choose the Device Manager tab.
4. 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 4. 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 speakerphone
supporting modems do not (since they can be connected to the sound board).
Typically, there are two methods for interfacing the Data/Fax/TAM/Speakerphone modem to a
sound card:
• Internal speaker/microphone TAPI connector/header
• Microphone and Speaker jacks mounted on the modem board
TAPI Connector
Using the on-board TAPI connector requires a sound card that also has a TAPI-style connector,
which has pins that provide analog microphone output and speaker input connections. Many
sound cards have one or more CD or auxiliary connectors, but these do not provide the required
microphone output for the SM56. To ensure compatibility, check the sound card specifications;
one connector must provide a microphone output as well as a speaker input.
You can make up or purchase a cable that routes SM56 microphone and speaker signals to the
sound card. Locate the 4-pin header connector on the SM56 card. The SM56 reference design
connector pin-out is as follows.
SM56 Pin Signal
1 Ground
2 Microphone In
3 Ground
4 Speaker Out
Important: Different modem manufacturers may vary this pinout. Consult their modem
documentation to verify. Also, different sound card connector pinouts may be different, in which
case the audio cable will need to have cross-over wires to match the pin signals. Make sure to
consult your sound card documentation for pin-signal details.
On-Board Microphone and Speaker Jacks
If the sound card does not provide a TAPI-style connector, you can connect the SM56 modem to
the sound card through optional on-board microphone and speaker jacks. Ask your modem
supplier for a board with this option. The microphone jack allows for the direct connection of a
microphone to the SM56 modem card. The sound card also has a microphone input.
• To use speakerphone applications with the modem, connect your microphone to the
microphone input jack on the SM56 modem card. You can then talk into your
microphone and hold a conversation with the remote party.
• To record audio (such as a voice mail greeting) on the personal computer, attach the
microphone to the microphone input jack on the sound card. Note that some
telephony applications may support audio recording through the modem jacks, e.g.
Bitware, in which case you do not need to switch the microphone to the sound card input
jack.
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:
1. Power down the personal computer.
2. Locate a vacant PCI bus connector.
3. 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.)
4. Connect the modem Line input to an analog phone jack using an RJ-11 phone cable.
Optionally, connect a telephone handset to the Phone input on the line interface card.
5. Replace the personal computer cover and power it back on.
6 Installing SM56 Software on Windows 95/98
Note: Windows 95/98 assigns the modem a COM port number. To support older software
applications and DOS games the SM56 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 Control Panel application after install is complete.
Installing on Windows 95/98
(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 line interface 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.
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