USRobotics 3Com manual

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. Any other trademarks, trade names or service marks used in[...]

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. DOS B OX S UPPORT The DOS Box allows DOS - based communications applica[...]

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 4.0 6 Installing Modem Drivers for Windows 2000 7 Technica l Reference 8 Regulatory Information 13[...]

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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.80 Fax Modulation Schemes ITU - T Group 3 Fax ITU - T V.17 ITU - T V.29 I[...]

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. Unlike many half - duplex speakerphones, your m[...]

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. 1. Remove the cover of the computer. Refer to your [...]

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. Click the Next button to cont[...]

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. Click the Next button to continue. 2. O n the next dialog box, select the “Specify the location of the driver (Advanced)” option, then click the Next button to conti[...]

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. After the files are copied, the mo dem driver is installed. R EMOVING THE M ODEM FR[...]

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. 2. On the next dialog box, select the “Search for a suitable driver for my device (reco[...]

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. For example, if you t[...]

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. Ten phone numbers are stored in NVRAM. Defaults are underl ined . Alps - specific modifications to the commands are in italics Extended AT Command Set &An (0,1,2, 3 ) ARQ re[...]

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 ,1,2.0,8) Select Data (0), Fax (1,2.0) or Voice (8) #MDL? Identify[...]

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 character ( 10 ) S5 * Defines backspace character ( 8 ) S6 * Sets number of seconds modem waits before dialing ( 2 ) S7 * Sets number of seconds modem w[...]

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.34 modulation 16 Disable V.34bis modulation 32 Disable X2 64 Disable V.90 128 Reserve[...]

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 the following two conditions: (1) this device may not cause harmful electromagnetic interference, and (2) this device must accept any interference rece[...]

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 generates and uses radio frequency energy and if not installed and used properly, in strict accordance with the manufacturer’s instructions, may caus[...]

15 CE Compliance Electromagnetic Compatibility This device complies with the following standards in accordance wit h the European Directives 89/336/EEC. Immunity EN 50082 - 1 06/92 Emission EN 55022 class B 08/87 Safety (Low Voltage Directive) This device complies with the following standards in accordance with European Directives 91/263/EEC and 72[...]