3Com 56k User's Manual And Reference
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3Com 56k User's Manual And Reference

3Com 56k User's Manual And Reference

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56K FAXMODEM
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Summary of Contents for 3Com 56k

  • Page 1 56K FAXMODEM User’s Guide and Reference...
  • Page 2 Uploads from users to server equipment travel at speeds up to 31.2 Kbps. An analogue phone line compatible with the ITU V.90 standard or 3Com 56K technology, and an Internet provider or corporate host site with the ITU V.90 standard...

  • Page 3: Table Of Contents

    Table of Contents Welcome to Information Access 56K* Product Features External Modem Installation with Windows 95 and Windows 98 Determining Your Version of Windows 95 How to Connect the Modem to the Computer Installing Modem Drivers with Windows 95: Versions 950 and 950a (Moving Through the "New Hardware Found" Screens)
  • Page 4 Table of Contents Troubleshooting Glossary Technical Reference Front Panel Lights Typing Commands Basic Data Commands Extended Data Commands S-Registers Fax Commands Screen Messages The Serial Interface Serial Interface Pin Definitions Regulatory Information CE Compliance Electromagnetic Compatibility Safety (Low Voltage Directive) Operation of pan-European modems Limited Warranty Contact details...

  • Page 5: Welcome To 56K*Information Access

    The International Telecommunication Union (ITU) An analogue phone line compatible with the ITU decides the technical protocols that V.90 standard or 3Com 56K technology, and an communications devices must use to operate with Internet provider or corporate host site with the each other.

  • Page 6: Product Features

    Product Features Modulation Schemes Fax Modulation Schemes ITU-T V.90 ITU-T V.17 3Com 56K technology (Download up to 56kbps, ITU-T V.29 and Upload using V.34) ITU-T V.27ter ITU-T V.34 (Inc 33600) ITU-T V.21 ITU-T V.32 bis Fax Standards ITU-T V.32 EIA 578 Class 1 FAX EIA 592 Class 2.0 FAX...
  • Page 7 SD/Send Data 2400, 4800, 7200, 9600, 12000, 14400 Flashes when computer sends a data bit to modem. Flash ROM Upgradable 56K Faxmodem supports software download through flash memory. You can obtain the latest features by downloading updates quickly and easily.

  • Page 8: External Modem Installation With Windows 95 And Windows 98

    External Modem Installation with Windows 95 and Windows 98 You will need these items from your Determining Your Version of 3Com U.S. Robotics modem box: Windows 95 Click the My Computer icon on your desktop with the right mouse button.

  • Page 9: How To Connect The Modem To The Computer

    External Modem Installation with Windows 95 and Windows 98 Plug one end of the phone cord into the Write down your version of Windows. TELCO socket and the other end into a phone Windows 95 version _______ wallsocket. Click OK. The phone wall socket you use must be for an How to Connect the Modem ANALOGUE phone line.

  • Page 10: Installing Modem Drivers With Windows 95

    External Modem Installation with Windows 95 and Windows 98 Installing Modem Drivers with Windows 95: Versions 950 and 950a Moving Through the “New Hardware Found” Screens When Windows 95 restarts, it should detect the modem. If it does, you will see the following Plug the power cords, cables, and peripherals screen.
  • Page 11 External Modem Installation with Windows 95 and Windows 98 Click Driver from disk provided by hardware manufacturer. Then click OK. If this screen does not appear, refer to “If Plug and Play Does Not Detect Your Modem” . When you see the Install from Disk screen, •...
  • Page 12 External Modem Installation with Windows 95 and Windows 98 Once Windows finishes loading the Double-click the Modems icon (circled in the information from the disk or CD-ROM, verify screen image below). that the modem installation was a success. When your desktop returns, click the Windows Start button and point to Settings.
  • Page 13 External Modem Installation with Windows 95 and Windows 98 In the “Modems Properties” screen, you should If this screen does not appear, refer to “If Plug and see a description for your modem. Play Does Not Detect Your Modem” on page 30.
  • Page 14 Be sure to install software after the modem is installed. The modem’s status screens should appear in the box. Click OK. Turn to “Software Installation” on page 20 for information about installing communications software. Congratulations! You are ready to start using your 3Com U.S. Robotics Faxmodem...

  • Page 15: Version 950B (Using The Update Device Driver Wizard Screens)

    External Modem Installation with Windows 95 and Windows 98 Installing Modem Drivers with Windows 95: Version 950b Using the Update Device Driver Wizard Screens When you see the following screen, • If you have a disk that contains your modem’s drivers, insert the disk into your disk drive, usually A.
  • Page 16 External Modem Installation with Windows 95 and Windows 98 When you see the following screen, click When Windows is finished copying files, verify that the modem installation was a success. Finish. Windows will copy files to your hard drive. Click the Windows Start button and point to Settings.
  • Page 17 External Modem Installation with Windows 95 and Windows 98 In the “Modems Properties” screen, you should Double-click the Modems icon (circled in the screen image below). see a description of your modem. This means the installation was a success.
  • Page 18 The modem’s status screens should appear in the box. Click OK. Be sure to install software after the modem is installed. Turn to “Software Installation” for information about installing communications software. Congratulations! You are ready to start using your 3Com U.S. Robotics Faxmodem...

  • Page 19: Installing Modem Drivers With Windows 98

    External Modem Installation with Windows 95 and Windows 98 Installing Modem Drivers with Windows 98 When you see this screen, Windows has detected the modem. Click Next. When you see the following screen: If this screen does not appear, refer to “If Plug and Play Does Not Detect Your Modem”.
  • Page 20 External Modem Installation with Windows 95 and Windows 98 • if you have a CD-ROM that contains your Click Finish. modem’s drivers, check CD-ROM drives option and insert the CD-ROM into your CD-ROM drive. • if you have a disk that contains your modem’s drivers, check the Floppy disk drives option and insert the disk into your disk drive.
  • Page 21 External Modem Installation with Windows 95 and Windows 98 If you do not see your modem listed, the installation efer to “If Plug and Play Does was unsuccessful. R Not Detect Your Modem”. Next, click the Diagnostics tab at the top of the “Modems Properties”...

  • Page 22: External Modem Installation With Windows 3.X

    External Modem Installation with Windows 3.x You will need these items from your How to Connect the Modem 3Com U.S. Robotics modem box: to the Computer Turn off your computer and any attached devices, such as a printer, monitor, keyboard, mouse.
  • Page 23 If you want to use a telephone on the same line, use a splitter arrangement. You cannot use the modem and Congratulations! a phone at the same time if they share the same You are ready to start using your telephone line. 3Com U.S. Robotics Faxmodem...

  • Page 24: Software Installation

    Software Installation In the Run dialog box, type A:\install.exe or Fax, Data, and Telecommunications Software D:\install.exe and press ENTER. (communications software) allows you to send and receive faxes directly from your computer desktop. If your disk drive or CD-ROM drive is a You can build your own fax directory, send faxes to different letter, type that letter instead of A or specified groups of fax numbers, select individual...

  • Page 25: Type Of Modem

    Windows 3.x to Select a 3Com U.S. Robotics high speed modem. If Windows 95, you can run MSD to determine your that selection is not listed, pick Courier Dual UART setting.
  • Page 26 Your modem will not work correctly with any of these settings. Fix or lock the serial port (baud) rate. If it’s referred to as autobaud, select OFF. Congratulations! You are now ready to start using your 3Com U.S. Robotics 56K Faxmodem...

  • Page 27: Troubleshooting

    Troubleshooting Read This First! Click Windows Start, point to Settings, and click Control Panel. Double-click the Modems icon. Click the Diagnostics tab. Click the COM port that your modem is assigned to, so that it is highlighted. If you do not see your modem on this screen, you need to shut down the computer and uninstall the modem.

  • Page 28: Troubleshooting

    Troubleshooting PROBLEM The computer or software will not recognise the modem. POSSIBLE SOLUTION Make sure the modem is plugged in and turned on. Use only the power adaptor included with your modem. POSSIBLE SOLUTION You may not be entering modem commands in the proper manner. Type in all upper case (AT) or all lower case (at).
  • Page 29 Troubleshooting PROBLEM The modem will not go off hook to dial or does not answer the phone. POSSIBLE SOLUTION You may have plugged your modem’s phone cord into a digital line. Plugging your modem’s phone cord into a digital phone line can damage the modem. Call your phone company if you are unsure whether or not your phone line is digital.
  • Page 30 Troubleshooting POSSIBLE SOLUTION If you have voice mail, your dial tone may be altered because messages are waiting. Retrieve your voice mail messages to restore your normal dial tone. POSSIBLE SOLUTION Your software may not have auto answer enabled. Enable the auto answer feature. In your communication software’s terminal mode, type ATS0=1 and press ENTER.
  • Page 31 ISPs that observe ITU-T V.90 and/or offer 3Com 56K technology. POSSIBLE SOLUTION Your phone line may not be capable of transferring data at the full 56K, but V.90 and 3Com 56K technology operate at a range of speeds and will use the highest speed possible.
  • Page 32 Troubleshooting PROBLEM Errors are constantly occurring in your V.17 fax transmissions. POSSIBLE SOLUTION Your modem initialisation string may be insufficient for fax transmissions. In terminal mode, type the following initialisation string: AT&F&H3&I2&R2S7=90 then press ENTER. POSSIBLE SOLUTION There may be a Terminate and Stay Resident (TSR) program (such as a screen saver or virus scanner) running in the background, disrupting data communications.
  • Page 33 Troubleshooting PROBLEM Your communications software fails to initialise the modem. POSSIBLE SOLUTION Your software’s port settings may be incorrect. Make sure the software’s port settings match those for your modem. POSSIBLE SOLUTION Make sure the modem is plugged in and turned on. Use only the power adaptor included with the modem.
  • Page 34 Troubleshooting PROBLEM If Plug and Play (PNP) does not detect your modem. You have installed the modem and Windows has started, but you see only your normal desktop. You do not see any screens indicating new hardware has been detected. POSSIBLE SOLUTION The Plug and Play installation was not successful.
  • Page 35 Troubleshooting Point to Settings Click Control Panel. Double-click the System icon. Click the Device Manager tab on the “System Properties” screen. Look for “Other Devices” or “Unknown Devices” in the list that appears. • If you do not see either of these options in the list, contact customer support for technical assistance. •...

  • Page 36: Glossary

    Glossary transmit/receive frequencies are the reverse of the Cross references are printed in boldface. Cross originating modem, which is in originate mode. references with items in the Data Commands found in the “Technical Reference” section, are printed in application italics. A computer program designed to perform a specific function, such as a word processing or analogue loopback...
  • Page 37 Glossary asynchronous transmission not technically accurate, baud rate is commonly Data transmission in which the length of time used to mean bit rate. between transmitted characters may vary. Since the time lapses between transmitted characters are binary digit not uniform, the receiving modem must be A 0 or 1, which reflects the use of the binary signaled as to when the data bits of a character numbering system.
  • Page 38 Glossary buffer characters per second (CPS) A memory area set aside to be used as temporary A data transfer rate generally estimated from the storage during input and output operations. An bit rate and the character length. For example, at example is the modem's command buffer.
  • Page 39 Glossary cyclic redundancy checking (CRC) data mode An error-detection technique consisting of a test The mode in which the faxmodem is capable of performed on each block, or frame, of data by both sending and receiving data files. A standard sending and receiving modems.
  • Page 40 Glossary dictionary duplex The term used for compression codes built by the Duplex indicates a communications channel capable of carrying signals in both directions. See V.42 bis data compression algorithm. half duplex, full duplex. digital loopback A test that checks the modem's RS-232 interface Electronic Industries Association (EIA) and the cable that connects the terminal This association is a group which defines...
  • Page 41 Glossary fax mode half duplex The mode in which the faxmodem is capable of These signals will flow in both directions, but only one way at a time. In microcomputer sending and receiving files in a facsimile format. communications, may refer to activation of the See definitions for V.17, V.27ter, V.29.
  • Page 42 Glossary LAPM modem Link Access Procedure for Modems is an error- A device that transmits/receives computer data through a communications channel such as radio control protocol defined in ITU-T or telephone lines. It also changes signals received Recommendation V.42. Like the MNP protocols, from the phone line back to digital signals before LAPM uses cyclic redundancy checking (CRC) passing them to the receiving computer.
  • Page 43 Glossary online fall back/fall forward protocol A feature that allows a high-speed, error-control A system of rules and procedures governing modem to monitor line quality and fall back to the communications between two or more devices. next lower speed in a defined range if line quality Protocols vary, but communicating devices must diminishes.
  • Page 44 Glossary remote echo terminal A copy of the data received by the remote system, A device whose keyboard and display are used for returned to the sending system, and displayed on sending and receiving data over a communications the screen. Remote echoing is a function of the link.
  • Page 45 Glossary V.17 V.23 An ITU-T standard for making facsimile An ITU-T standard for modem communication at connections at 14,400 bps, 12,000 bps, 9600 bps, 1200 bps with a 75 bps back channel. and 7200 bps. V.27ter An ITU-T standard for facsimile operations that V.21 specifies modulation at 4800 bps, with fallback to An ITU-T standard for modems operating in...
  • Page 46 Glossary V.32 bis V.42 bis An ITU-T standard that extends the V.32 An extension of ITU-T V.42 that defines a specific connection range: 4800, 7200, 9600, 12,000, and data compression scheme for use during V.42 14,400 bps. V.32 bis modems fall back to the next connections.
  • Page 47 Glossary Ymodem An error-checking protocol that can send several files of data at a time in 1024-byte (1K) blocks. This protocol can use either checksums or CRC for error checking. Ymodem G This is similar to the Ymodem, except it relies on the modem for error checking, which makes it faster.

  • Page 48: Technical Reference

    Technical Reference Front Panel Lights Symbol Meaning Status PWR ..Power The modem is turned on. CD... Carrier Detect ON if modem receives a valid data signal (carrier) from a remote modem, indicating that data transmission is possible. Always ON if CD override is ON (&C0).

  • Page 49: Typing Commands

    Technical Reference Typing Commands • In 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.) •...

  • Page 50: Basic Data Commands

    Technical Reference not require the AT prefix or a Carriage Basic Data Commands Return. <control key>S Stop or restart help screens. <control key>C or <control key>K Stop help screens. Use in conjunction with D, S, or & commands (or just AT) to display a basic command list;...
  • Page 51 Technical Reference Any key Aborts off-hook dial/answer Dn (Continued) operation and hangs up. (Comma) Pause, see the Required command prefix, except with A/, definition of the S8 register to which it is linked +++, and A>. Use alone to test for OK result code.
  • Page 52 Technical Reference Sets local echo Displays the following information: Echo OFF Modem displays keyboard Four-digit product code commands Results of ROM checksum Results of RAM checksum Sets online local echo of Product type transmitted data ON/OFF Current modem settings Local echo ON; modem sends Stored memory settings a copy of data, it sends to the Link diagnostics...
  • Page 53 Technical Reference Speaker ON after dial, until CONNECT Returns online Returns online Returns online and retrains Displays/suppresses result codes Displays result codes Quiet mode; no result codes Displays result codes only in Originate mode Sr.b=n Sets bit .b of register r to n (0/OFF or 1/ON) Sr=n Sets register r to n...
  • Page 54 Technical Reference Xn Sets result code displayed, default is X4 Xn Setting Result Codes • • • • • 0/OK • • • • • 1/CONNECT • • • • • 2/RING • • • • • 3/NO CARRIER • •...
  • Page 55 Technical Reference Xn (Continued) Xn Setting Result Codes • • • • 91/CONNECT 21600 • • • • 99/CONNECT 24000 • • • • 103/CONNECT 26400 • • • • 107/CONNECT 28800 • • • • 151/CONNECT 31200 • • •...
  • Page 56 Technical Reference Xn (Continued) Xn Setting Result Codes • • • • 192/CONNECT 42666 • • • • 196/CONNECT 44000 • • • • 200/CONNECT 45333 • • • • 204/CONNECT 46666 • • • • 208/CONNECT 48000 • • •...
  • Page 57 Technical Reference Selects power-on/reset default Resets modem configuration Resets modem to profile Use profile 0 setting in selected by Y command NVRAM Resets modem to profile 0 Use profile 1 setting in Resets modem to profile 1 NVRAM Resets modem to factory default Use factory configuration 0 profile 0 (&F0) (&F0)

  • Page 58: Extended Data Commands

    Technical Reference &Cn Controls Carrier Detect (CD) Extended Data Commands signal &$ Displays a list of ampersand &C0 CD override (&) commands &C1 Normal CD operations &An Enables/disables additional result code &Dn Controls Data Terminal Ready subsets, see Xn (DTR) operations &A0 ARQ result codes disabled &D0...
  • Page 59 Technical Reference &Gn Sets Guard Tone &In Sets Receive Data (RD) software flow control, see also &G0 No guard tone, U.S. and &Rn Canada &G1 550 Hz guard tone, some &I0 Software flow control disabled &I1 Xon/Xoff signals to your European countries, requires B0 modem and remote system setting...
  • Page 60 Technical Reference &N1 300 bps &Mn Sets Error Control (ARQ) for &N2 1200 bps connections at 1200 bps and higher &N3 2400 bps &M0 Normal mode, error control &N4 4800 bps disabled &N5 7200 bps &M1 Reserved &N6 9600 bps &M2 Reserved &N7...
  • Page 61 Technical Reference &Nn (Continued) &N35 52,000 bps &N36 53,333 bps &N13 26,400 bps &N37 54,666 bps &N14 28,800 bps &N38 56,000 bps &N15 31,200 bps &N16 33,600 bps &Pn Sets pulse (rotary) dial &N17 28,000 bps make/break ratio &N18 29,333 bps &P0 U.S./Canada ratio, 39%/61% &N19...
  • Page 62 Technical Reference &Tn Begins test modes &T0 Ends testing &T1 Analogue Loopback &T2 Reserved &T3 Local Digital Loopback &T4 Enables Remote Digital Loopback &T5 Prohibits Remote Digital Loopback &T6 Initiates Remote Digital Loopback &T7 Remote Digital with self-test and error detector &T8 Analogue Loopback with self- test and error detector...
  • Page 63 Technical Reference &Un When set above 0, the value chosen from the table sets the floor connect speed (the lowest acceptable connect speed). If a connection cannot be made at or above this speed, the modem will hang up. This command can also be used in conjunction with &Nn. Note: &U17 through &U39 apply only to V.90 products.
  • Page 64 Technical Reference &Un (Continued) &U20 32,000 bps &U21 33,333 bps &U0 No restrictions on the &U22 34,666 bps minimum speed for the &U23 36,000 bps connection &U24 37,333 bps &U1 300 bps &U25 38,666 bps &U2 1200 bps &U26 40,000 bps &U3 2400 bps &U27...
  • Page 65 Technical Reference &Wn Writes current configuration to &Zn? Displays the phone number stored at position n (n = 0− − 3) NVRAM templates &W0 Modifies the NVRAM 0 &ZL? Displays the last executed dial string template (Y0) &W1 Modifies the NVRAM 1 #CID=n Controls Caller ID feature template (Y1) #CID=0 Caller ID disabled...

  • Page 66: S-Registers

    Technical Reference S-Registers To change a setting, use the ATSr=n command, where r is the register and n is a decimal value from 0 − 255 (unless otherwise indicated). Register Default Function Sets the number of rings on which to answer in Auto Answer Mode When set to 0, Auto Answer is disabled Counts and stores the number of rings from an incoming call S0 must be greater than 0...
  • Page 67 Technical Reference Register Default Function Sets the number of seconds the modem waits for a carrier Sets the duration, in seconds, for the pause (,) option in the Dial command Sets the required duration, in tenths of a second, of the remote modem’s carrier signal before recognition by the modem Sets the duration, in tenths of a second, that the modem waits to hang up after loss of carrier.
  • Page 68 Technical Reference Register Default Function S13 (Continued) Value Result Reserved Disable quick retrains Disconnect on escape code *The 1.5K-byte non-ARQ buffer allows data transfer with Xmodem- and Ymodem- type file transfer protocols without using flow control The 128-byte option lets remote users with slower modems keep data you are sending from scrolling off their screens When remote users send your computer an Xoff (Ctrl-S) and you stop transmitting, the data in transit from your modem’s buffer does not exceed the size of their screen...
  • Page 69 Technical Reference Register Default Function S15 (Continued) Value Result Disable MNP handshake Disable MNP level 4 Disable MNP level 3 MNP incompatibility Disable V.42 operation To disable V.42 detect phase, select the total of the values for bits 3 and 7. (S15=136{the sum of values 8 and 128}) Reserved Reserved...
  • Page 70 Technical Reference Register Default Function Stores the ASCII decimal code for the Xon character Stores the ASCII decimal code for the Xoff character Reserved Sets the duration, in hundredths of a second, that DTR must be dropped so that the modem does not interpret a random glitch as a DTR loss Most users will want to use the default This register is useful for setting compatibility with older systems running under older...
  • Page 71 Technical Reference Register Default Function S27 (Continued) Value Result Disable V.42 selective reject Software compatibility mode This setting disables the codes and displays the 9600 code instead The actual rate of the call can be viewed on the ATI6 screen Used for unusual software incompatibilities Some software may not accept 7200, 12,000, and 14,400 bps or greater result codes...
  • Page 72 Technical Reference Register Default Function S32 (Continued) Value Result Disable 33,600 bps and 31,200bps in V.34 modulation Disable 56K modulation Disable V.90 modulation. Reserved. Bit-mapped register setup To set the register, see the instructions for S13 Value Result Disable 2400 symbol rate...
  • Page 73 Technical Reference Register Default Function S34 (Continued) Value Result Disable 32S-2D trellis encoding Disable 64S-4D trellis encoding Disable non-linear coding Disable TX level deviation Disable Pre-emphasis Disable Pre-coding S35-S37 Reserved Sets an optional delay, in seconds, before a forced hang-up and clearing of the Transmit buffer when DTR drops during an ARQ call.

  • Page 74: Fax Commands

    Technical Reference Fax Commands +FCLASS=n Sets the mode of operation FCLASS=0 Data mode FCLASS=1 Group 3 Facsimile Service Class 1mode FCLASS=2.0 Group 3 Facsimile Service Class 2.0 mode FCLASS? Displays the current FCLASS mode (see mode descriptions above) +FCLASS=? Displays the FCLASS mode options (see mode descriptions above) +FTS=n Stops the fax transmission...
  • Page 75 Technical Reference Fax Commands (Continued) +FTM=n Transmits data using the modulation specified by n (n = 3, 24, 48, 72, 96, 97, 98, 121, 122, 145, or 146) Note: See the “Screen Messages” table at the end of this section for an explanation of messages that appear in response to this command.

  • Page 76: Screen Messages

    Technical Reference Screen Messages Numeric Text Message Message Description The previous command has been processed successfully. CONNECT The modem has just connected to another modem. RING Reports the receipt of a network altering ring. NO CARRIER No carrier is being received from the modem. ERROR The previous command line has not been recognized or was completed abnormally.

  • Page 77: The Serial Interface

    Technical Reference The Serial Interface The serial interface is a standard developed by the Electronic Industries Association (EIA). It defines the signals and voltages used when data is exchanged between a computer and a modem or serial printer. The entire standard covers many more functions than are used in most data communications applications. Data is transmitted between the devices over a shielded serial cable with a 25-pin male (DB-25) connector to the modem and a 25-pin, 9-pin, 8-pin, or custom-built connector to the computer.

  • Page 78: Serial Interface Pin Definitions

    Technical Reference Serial Interface Pin Definitions Signal Source DB-25 DB-9 Circuit Function Computer/Modem — Chassis Ground Both Transmitted Data Computer Received Data Modem Request to Send Computer Clear to Send Modem Data Set Ready Modem Signal Ground Both Carrier Detect Modem —...

  • Page 79: Regulatory Information

    Regulatory Information Safety (Low Voltage Directive) CE Compliance This device complies with the following standards in accordance with European Directives Electromagnetic Compatibility 91/263/EEC and 73/23/EEC: • EN 60950/A4 3/97 This device complies with the following standards in accordance with the European Directives •...

  • Page 80: Operation Of Pan-European Modems

    Regulatory Operation of pan-European approved modems If your particular modem has pan-European approval, as indicated by the approval label on the bottom of the modem being as shown below: then the following notice should be observed: This equipment has been approved to CTR 21 for pan-European single terminal connection to the Public Switched Telephone Network (PSTN).

  • Page 81: Limited Warranty

    (90) date of purchase from 3Com or its authorized days from the date of purchase from 3Com or its reseller: authorized reseller. 3Com warrants the media containing software against failure during the warranty period.
  • Page 82 (90) days or until April 1, 2000, whichever is later. standard. A product is considered a “Heritage 3Com product” if it is a member of a product family which was manufactured by 3Com prior to its merger with...
  • Page 83 REPLACEMENT, OR REFUND OF THE than thirty (30) days after the date of purchase, and PURCHASE PRICE PAID, AT 3COM'S OPTION. this is verified by 3Com, it will be considered dead- TO THE FULL EXTENT ALLOWED BY LAW, or defective-on-arrival (DOA) and a replacement...
  • Page 84 SALE, INSTALLATION, MAINTENANCE OR USE OF ITS PRODUCTS. SALE, INSTALLATION, MAINTENANCE, USE, PERFORMANCE, FAILURE, OR 3COM SHALL NOT BE LIABLE UNDER THIS INTERRUPTION OF ITS PRODUCTS, EVEN IF WARRANTY IF ITS TESTING AND 3COM OR ITS AUTHORIZED RESELLER HAS EXAMINATION DISCLOSE THAT THE...

  • Page 85: Contact Details

    This warranty gives you specific legal rights which may vary depending on local law. ONTACT DETAILS Phone : +44 (0) 870 844 4546 Fax : +44 (0) 870 844 4547 BBS : +44 (0) 118 969 2200 E-Mail : uk_modemsupport@3com.com WWW : http://www.3com.co.uk...

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