Instruction/ maintenance manual of the product 3Com USRobotics
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56K Modem User’s Guide & Reference This manual covers installation and operating instructions for: 3Com U.S. Robotics Modems 3Com, the 3Com logo, and U.S. Robotics, are registered trademarks of 3Com Corporation or its subsidiaries. Windows i s a registered trademark of Microsoft Corp.
P RODUCT D ISCLAIMER This manual covers features that may or may not be present on your modem. Please consult you r computer manufacturer’s documentation for a list of your modem’s supported features. For service and repair issues, contact your computer system manufacturer.
T ABLE OF C ONTENTS Product Features 1 Voice Product Features 2 Installing th e Modem 3 Installing Modem Drivers for Windows 98 Second Edition 4 Installing Modem Drivers for Windows Millennium Edition (Me) 5 Installing Modem Drivers for Windows NT 4.
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1 P RODUCT F EATURES Modulation Schemes ITU - T V.90 ITU - T V.34+ ITU - T V.32bis ITU - T V.32 ITU - T V.22bis ITU - T V.22 ITU - T V.23 Bell 212A ITU - T V.21 Bell 103 Error Control and Data Compression Schemes ITU - T V.42 MNP 2 - 4 ITU - T V.42bis MNP 5 Embedded Control V.
2 V OICE P RODUCT F EATURES If your modem has voice capabilities, the following information will apply: Speakerphone With the addition of a microphone, a set of external, powered speakers, and the appropriate software, your new voice modem provides all the convenience of a full - duplex speak erphone.
3 I NSTALLING THE M ODEM Before you unplug anyth ing, label the cords or make a sketch of how they are connected. This can be helpful when you later reconnect the cords. Caution: To avoid the risk of electrical shock, make sure your computer and all peripheral devices are turned off and unplugged.
4 I NSTALLING D RIVERS FOR W INDOWS 98 S ECOND E DITION To install the modem driver: 1. After Windows starts, the Add New Hardware Wizard will find a PCI Serial Controller. Click the Next button to continue. 2. On the next dialog box, make sure “Search for the bes t driver for your device (Recommended)” is checked.
5 I NSTALLING D RIVERS FOR W INDOWS M ILLENNIUM E DITION (M E ) To install the modem driver: 1. After Windows starts, the Add New Hardware Wizard will find a PCI Serial Controller.
6 I NSTALLING D RIVERS FOR W INDOWS NT 4.0 To install the modem driver: 1. When Windows starts, login using an account with Administrator privileges. 2. Locate and run the SETUP.EXE program for your modem driver. 3. When the program starts, click the Install button.
7 I NSTALLING D RIVERS FOR W INDOWS 2000 To install the modem driver: 1. When Windows starts, login using an account with Administrator privileges. After logging in, the Found New Hardware Wizard wi ll find a PCI Serial Port. Click the Next button to continue.
8 Technical Reference Typing Commands I n terminal mode, type commands in either upper or lower case, not a combination. Use the Backspace key to delete errors. You cannot delete the original AT command because it is stored in the modem buffer. If a command has numeric options and you do not inc lude a number, zero is assumed.
9 Zn (0,1,2,3,4,5) Reset and load configuration n $ AT command set help screen Note: C, K commands are not implemented, will respond OK when these commands are encountered.
10 Class 2.0 Facsimile commands are supported and are described in USR Document (FAX20.DOC). Speakerphone/TAD Commands #BDR=n ( 0 ,1,2,3,4,5,...4 8) Select Baud Rate (new baud rate = n * 2400bps, autobaud if 0) #CID=n ( 0 ,1,2) Enable Caller ID and Select Reporting Format #CLS=n ( 0 ,1,2.
11 S Registers S0 * Number of rings to answer on ( 0 ) S1 Counts number of rings ( 0 ) S2 * Defines escape code character ( 43 ) S3 * Defines carriage return character ( 13 ) S4 * Defines line feed ch.
12 8 D efault time 255 Disable all connections except V.32 9600bps S29 * V.21/V.23 Fallback timer ( 20 ) S30 * Reserved S31 * TAD Audio level adjust ( 128 ) S32 * Bit mapped ( 16 ) 1 V.8 Call Indicate enable 2 Enable V.8 mode 4 Disable V.FC modulati on 8 Disable V.
13 Regulatory Information Manufacturer’s Declaration of Conformity The manufacturer of this modem declares that the product conforms to the FCC’s specifications: Part 15: Operation is subject to t.
14 (The telephone number provided may not be a 900 number or any other umber for which charges exceed local or long - distance transmission charges.) Radio and Television Interference This equipment g.
15 CE Compliance Electromagnetic Compatibility This device complies with the following standards in accordance wit h the European Directives 89/336/EEC.
An important point after buying a device USRobotics 3Com (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought USRobotics 3Com yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data USRobotics 3Com - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, USRobotics 3Com you will learn all the available features of the product, as well as information on its operation. The information that you get USRobotics 3Com will certainly help you make a decision on the purchase.
If you already are a holder of USRobotics 3Com, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime USRobotics 3Com.
However, one of the most important roles played by the user manual is to help in solving problems with USRobotics 3Com. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device USRobotics 3Com along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center