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WARRANTIES EXCLUSIVE:

IF A 3COM PRODUCT DOES NOT OPERATE AS

WARRANTED ABOVE, CUSTOMER'S SOLE REMEDY FOR BREACH OF THAT
WARRANTY SHALL BE REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE
PRICE PAID, AT 3COM'S OPTION. TO THE FULL EXTENT ALLOWED BY LAW, THE
FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF
ALL OTHER WARRANTIES, TERMS, OR CONDITIONS, EXPRESS OR IMPLIED,
EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE,
INCLUDING WARRANTIES, TERMS, OR CONDITIONS OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, AND SATISFACTORY QUALITY. 3COM
NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT
ANY OTHER LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION,
MAINTENANCE OR USE OF ITS PRODUCTS.

3COM SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND
EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT IN THE PRODUCT DOES
NOT EXIST OR WAS CAUSED BY CUSTOMER'S OR ANY THIRD PERSON'S MISUSE,
NEGLECT, IMPROPER INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS
TO REPAIR OR MODIFY, OR ANY OTHER CAUSE BEYOND THE RANGE OF THE
INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING, OR OTHER HAZARD.

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Содержание 56K Series

Страница 1: ...3Com U S Robotics 56K Voice Internal PCI Manual P N 2 024 506 ...

Страница 2: ...right 1999 3Com Corporation 3800 West Golf Road Rolling Meadows IL 60008 All Rights Reserved IMPORTANT In accordance with the ITU standard for 56K transmissions V 90 this modem is capable of 56 Kbps downloads However due to varying line conditions the actual speeds you experience may be lower Uploads from users to server equipment travel at speeds up to 31 2 Kbps An analogue phone line compatible ...

Страница 3: ...N ACCESS 1 PRODUCT FEATURES 2 ERROR CONTROL AND DATA COMPRESSION SCHEMES 2 FAX MODULATION SCHEMES 2 FAX STANDARDS 2 V 90 FRONT CHANNEL LINK RATES 2 V 90 BACK CHANNEL LINK RATES 2 V 32BIS LINK RATES 3 ADDITIONAL LINK RATES 3 FAX LINK RATES 3 VOICE PRODUCT FEATURES 4 ...

Страница 4: ...W TO INSERT THE MODEM INTO THE COMPUTER 8 INSTALLING MODEM DRIVERS WITH WINDOWS 95 13 INSTALLING MODEM DRIVERS WITH WINDOWS 98 16 INSTALLING MODEM DRIVERS WITH WINDOWS NT 4 0 WITHOUT PNP ENABLED 20 INSTALLING MODEM DRIVERS WITH WINDOWS NT 4 0 WITH PNP ENABLED 21 UNINSTALLING THE MODEM WITH WINDOWS 95 WINDOWS 98 AND WINDOWS NT 4 0 24 WINDOWS 95 AND WINDOWS 98 24 WINDOWS NT 4 0 25 ...

Страница 5: ...ARY 39 TECHNICAL REFERENCE 57 TYPING COMMANDS 57 BASIC DATA COMMANDS 58 EXTENDED DATA COMMANDS 68 S REGISTERS 78 FAX COMMANDS 90 SCREEN MESSAGES 93 COMPLIANCE INFORMATION 94 COMPLIANCE WARNING 94 INTERCONNECTING PORTS 95 COMMAND RESTRICTIONS 95 ...

Страница 6: ...CLARATION 97 NOTE 98 CE COMPLIANCE 98 Electromagnetic Compatibility 98 This device complies with the following standards in accordance with the European Directives 89 336 EEC 98 Safety Low Voltage Directive 98 OPERATION OF PAN EUROPEAN APPROVED MODEMS 99 WARRANTY 100 CONTACT DETAILS 108 ...

Страница 7: ...who offers the ITU V 90 standard or 3Com 56K technology 3Com is working with providers everywhere to quickly upgrade their service to the ITU V 90 standard IMPORTANT In accordance with the ITU standard for 56K transmissions V 90 this modem is capable of 56 Kbps downloads However due to varying line conditions the actual speeds you experience may be lower Uploads from users to server equipment trav...

Страница 8: ... 42bis MNP 2 5 Fax Modulation Schemes ITU T V 17 ITU T V 29 ITU T V 27ter ITU T V 21 Fax Standards EIA 578 Class 1 FAX EIA 592 Class 2 0 FAX V 90 Front Channel Link Rates 28000 29333 30666 32000 33333 34666 36000 37333 38666 40000 41333 42666 44000 45333 46666 48000 49333 50666 52000 53333 54666 56000 57333 V 90 Back Channel Link Rates 4800 7200 9600 12000 14400 16800 19200 21600 24000 26400 28800...

Страница 9: ...s 4800 7200 9600 12000 14400 16800 19200 21600 24000 26400 28800 31200 33600 V 32bis Link Rates 4800 7200 9600 12000 14400 Additional Link Rates 300 1200 75 V 23 1200 2400 Fax Link Rates 2400 4800 7200 9600 12000 14400 ...

Страница 10: ...uplex speakerphone Unlike many half duplex speakerphones your modem allows you to converse normally without annoying echoes and distortion Simply plug the speakers into the socket on the modem identified with the and the microphone into the socket with the icon and you are ready to go Personal Voice Mail Personal Voice Mail turns your modem into a full featured messaging system Enjoy the convenien...

Страница 11: ...m greetings receive messages and set up multiple voice mailboxes You can even access your voice messages remotely Your modem will automatically detect incoming fax data voice calls and route them appropriately ...

Страница 12: ...the modem card from the telephone line while the cover lid of the DTE computer is removed Installation of the modem card in a DTE computer which does not require a tool to open the cover lid will render the product approval permit void During installation of the modem card care must be taken There should be at least 2mm of air gap between the modem card and other components within the DTE computer...

Страница 13: ...he modem card to your DTE computer The label reads Disconnect the telephone line before opening the cover lid of the DTE computer Do not connect the customer equipment modem to the telephone line while the cover lid of the DTE computer is open ...

Страница 14: ...ore any software is loaded Your 3Com U S Robotics modem is a Plug and Play device However Plug and Play will not work if you do not have resources available or if devices on your system are not reporting resource usage correctly Your modem requires one COM port and one IRQ setting How to Insert the Modem into the Computer Before you unplug anything label the cords or make a sketch of how things ar...

Страница 15: ...____________________ 1 Turn off your computer and unplug it from the electrical outlet 2 Unplug any peripheral devices printer monitor keyboard mouse etc from the computer 3 Remove the cover of the computer Refer to your computer manufacturer s manual if you need instructions 4 Your modem is designed as a PCI card Hold the modem so that the black connectors are pointing at the floor and the speake...

Страница 16: ... modem PCI slots are white and usually shorter than ISA slots Unscrew and remove the expansion slot cover It is the long narrow piece of metal that keeps dust from entering through the opening perpendicular to the slot 6 Holding the modem at each corner align the silver edge with the empty ...

Страница 17: ... screw that you removed in step 4 8 Replace the cover of the computer 9 If you currently have a phone plugged into the wall socket you plan to use for the modem disconnect the telephone cord from the socket The phone socket you use must be for an ANALOGUE phone line the line most commonly found in homes Most phones in office buildings are wired through digital lines Be sure you know what type of l...

Страница 18: ... You cannot use the modem and a phone at the same time if they share the same telephone line 12 As your modem is a voice modem it came with a microphone Plug the microphone into the socket labelled You should also attach a set of powered speakers not included to the socket labelled 13 Plug the power cords cables and peripherals back into the computer and turn on the computer 14 Start Windows 15 Ne...

Страница 19: ...stalling Modem Drivers with Windows 95 1 When you see this screen if you have a CD ROM that contains your modem s drivers insert the CD ROM into your CD ROM drive if you have a disk that contains your modem s drivers insert the disk into your disk drive Click Next ...

Страница 20: ...ws will copy the files to your hard drive 3 After Windows has finished copying files the installation wizard will search for Wave Device for Voice Modem Click on Finish to continue and please repeat process from Step 2 above 4 When Windows finishes copying your files verify that the modem installation was a success ...

Страница 21: ...nostics tab at the top of the Modems Properties screen Write down the COM setting for your modem in the following space You may need to know this setting when you install your communications software COM Port_________ 9 Click More Info The modem s status screens should appear in the box Click OK If you do not see your modem s status screens when you click More Info the installation was unsuccessfu...

Страница 22: ...s software you are ready to use the modem Installing Modem Drivers with Windows 98 1 When you see this screen Windows has detected the modem Click Next If this screen does not appear go to Plug and Play Does Not Detect Your Modem on page 36 ...

Страница 23: ... have a CD ROM that contains your 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 4 The next screen tells you that Windows has found the driver for your modem Click Next ...

Страница 24: ...r Voice Modem Click on Next to continue and please repeat process from Step 2 5 Click Finish 6 When Windows is finished copying files you should verify that the modem installation was a success Click the Windows Start button and point to Settings Then click Control Panel 7 Double click the Modems icon ...

Страница 25: ...age 36 9 Next click the Diagnostics tab at the top of the Modems Properties screen Write down the COM setting for your modem in the following space You may need to know this setting when you install your communications software COM Port_________ You are ready to install communications software Refer to the manual of the communications software for instructions on installation After you install you...

Страница 26: ...tup program starts click Install 6 The resource page contains the configuration information of your modem in Windows NT COM port I O address and Interrupt Request Line are the three resources that may require adjustment The Setup program should have detected available resources and entered them If you want to use other settings change them now 7 When this is complete click OK 8 Please select the r...

Страница 27: ...tware you are ready to use the modem Installing Modem Drivers with Windows NT 4 0 with PNP Enabled 1 After installing the modem turn on your Windows NT workstation 2 After the Windows NT login Windows NT will auto detect your modem hardware and the New Hardware Found screen appears 3 Select Driver from disk provided by hardware manufacturer and click OK 4 Insert the installation disk or CD ROM int...

Страница 28: ...t Request Line are the three resources that may require adjustment The Setup program should have detected available resources and entered them If you want to use other settings change them now 10 When this is complete click OK 11 Please select your relevant country followed by OK 12 Windows NT will indicate that there has been a System Settings change and that you must restart your computer 13 Rem...

Страница 29: ... are ready to install communications software Refer to the manual of the communications software for instructions on installation After you install your communications software you are ready to use the modem ...

Страница 30: ...lick Control Panel 2 Double click the System icon and click the Device Manager tab Double click Modem followed by the 56K Voice Internal PCI 3 Click on the Port Settings tab and click on Uninstall 4 Click OK to remove the device and click on OK again to complete the operation 5 Shut down your system Click Start Click Shut Down Click Yes 6 When your computer is shut down turn it off 7 Unplug the co...

Страница 31: ... Double click the Winmodem icon 3 Click the Uninstall button to remove the modem 4 Click Yes to uninstall the modem 5 Click Yes to restart the computer now 6 When your computer is shut down turn it off 7 Unplug the computer s power cord from the computer 8 Remove the computer s cover 9 Remove the modem from its expansion slot 10 Plug your computer s power cord back into the computer ...

Страница 32: ...eed to shut down the computer and uninstall the modem Reinstall your modem following the directions in the Installing the modem with Windows 95 Windows 98 and Windows NT 4 0 chapter 5 Click More Info You should see a list of the modem s ATI commands Click OK and exit out of all open screens If the ATI commands do not appear your modem is not properly installed Reinstall your modem following the di...

Страница 33: ...exclamation point over your modem you have a resource conflict and it is probably an IRQ conflict Continue with step 4 If you did not see a yellow exclamation point you may still have an IRQ conflict Continue with the next Possible Solution If these possible solutions do not solve your problem continue with step 4 4 Click the modem s name to select it 5 Click Remove 6 You will be asked if you are ...

Страница 34: ...n slot and replace the cover 10 Plug the computer back into the electrical outlet and turn it on 11 When Windows restarts once again right click My Computer on your desktop and click Properties Click the Device Manager tab Double click Computer Make sure the Interrupt request IRQ radio button is checked You can determine which IRQ settings are free on your system by looking for numbers that are no...

Страница 35: ...rt and IRQ settings in your software and or in the Windows Device Manager POSSIBLE SOLUTION You may not be entering modem commands in the proper manner Type in all upper case AT or all lower case at POSSIBLE SOLUTION You may not be using fully Windows based communications software The modem requires fully Windows based software Some Windows based communications and Internet software use a DOS base...

Страница 36: ...not your phone line is digital POSSIBLE SOLUTION You might have a bad phone cord connection to your modem The phone cord should be plugged into the socket labelled on the modem and the wall phone socket The phone cord should be no longer than 12 feet in length Use the phone cord included with your modem if possible POSSIBLE SOLUTION You may have devices between the modem and the phone socket There...

Страница 37: ...essages 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 You need to enable auto answer before every session unless you alter your software s initialization string to permanently enable auto answer ...

Страница 38: ...EM Both modems sound like they are exchanging carrier signals but fail to establish a connection POSSIBLE SOLUTION You may have a poor line connection Place the call again Calls are routed differently each time ...

Страница 39: ... standard and an Internet provider or corporate host site compatible with the V 90 standard are necessary for these high speed downloads POSSIBLE SOLUTION The phone lines in your area may not be 56K compatible Call your phone company to find out if your phone line is compatible with the ITU standard for 56K and or is compatible with 3Com 56K technology POSSIBLE SOLUTION You may have devices betwee...

Страница 40: ...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 Disable any Terminate and Stay Resident TSR programs running in the background If you have software running as a TSR check the software s manual for information about disabling its ability to operate as a TSR POSSIBLE SOLUTION You...

Страница 41: ...mpressed Then open it in the application with which it was created Select your fax software as the printer and then print the file PROBLEM Your communications software fails to initialize the modem POSSIBLE SOLUTION Your software s port settings may be incorrect Make sure the software s port settings match those for your modem ...

Страница 42: ...he following 1 Click Start and click Shut Down 2 When asked if you wish to shut down your computer click Yes 3 When Windows indicates that it is safe to turn off your computer turn it off 4 Wait 15 seconds before turning the computer back on 5 Windows may detect your modem upon this restart even if it did not detect the modem during the initial installation If you see screens indicating that new h...

Страница 43: ...n Devices in the list that appears If you do not see either of these options in the list contact your computer manufacturer for technical assistance If you do see one of these options double click the option and continue with step 12 12 If the description that appears matches the modem you are trying to install click Remove If it does not contact your computer manufacturer for technical assistance...

Страница 44: ...38 14 Restart the computer and continue with the on screen instructions If the computer does not detect the modem after this second restart contact your computer manufacturer for technical assistance ...

Страница 45: ...er turned into analogue form looped back to the receiver and converted back into digital form analogue signals A variety of signals and wavelengths that can be transmitted over communications lines such as the sound of a voice over the phone line These signals are in contrast with digital signals answer mode The mode used by your modem when answering an incoming call from an originating modem The ...

Страница 46: ... 42 ASCII American Standard Code for Information Interchange is a code used to represent letters numbers and special characters such as and asynchronous transmission Data transmission in which the length of time between transmitted characters may vary Since the time lapses between transmitted characters are not uniform the receiving modem must be signaled as to when the data bits of a character be...

Страница 47: ...al is used to dial voice numbers See command Dn baud rate A term used to measure the speed of an analogue transmission from one point to another Although not technically accurate baud rate is commonly used to mean bit rate binary digit A 0 or 1 which reflects the use of the binary numbering system It is used because the computer recognizes either of two states OFF or ON The shortened form of binar...

Страница 48: ... A memory area set aside to be used as temporary storage during input and output operations An example is the modem s command buffer byte A group of binary digits stored and operated upon as a unit In user documentation the term usually refers to 8 bit units or characters One kilobyte KB is equal to 1 024 bytes or characters 640 KB indicates 655 360 bytes or characters carrier A tone signifying a ...

Страница 49: ...ploy advanced techniques such as longer transmission frames and data compression to increase cps class 1 and 2 0 International standards used between fax application programs and faxmodems for sending and receiving faxes cyclic redundancy checking CRC An error detection technique consisting of a test performed on each block or frame of data by both sending and receiving modems The sending modem in...

Страница 50: ...efficient throughput gained data mode The mode in which the faxmodem is capable of sending and receiving data files A standard modem without fax capabilities is always in data mode DCE Data Communications or Circuit Terminating Equipment is equipment such as dial up modems that establish and control the data link via the telephone network default Any setting assumed at startup or reset by the comp...

Страница 51: ... interface and the cable that connects the terminal computer and the modem The modem receives data in the form of digital signals from the computer or terminal and immediately returns the data to the screen for verification digital signals Signals that are discrete and uniform In this manual the term refers to the binary digits 0 and 1 These signals are in contrast with analogue signals DTE Data T...

Страница 52: ...ity or blocks of data V 42 and MNP error control protocols use error detection CRC and retransmission of flawed frames ARQ facsimile A method for transmitting the image on a page from one point to another This is commonly referred to as fax fax mode The mode in which the faxmodem is capable of sending and receiving files in a facsimile format See definitions for V 17 V 27ter V 29 flow control A me...

Страница 53: ...will flow in both directions but only one way at a time In microcomputer communications may refer to activation of the online local echo which causes the modem to send a copy of the transmitted data to the screen of the sending computer Hz Hertz is a frequency measurement unit used internationally to indicate cycles per second ITU T An international organization that defines standards for telegrap...

Страница 54: ... by Microcom Inc and now in the public domain There are several different MNP protocols but the most commonly used one ensures error free transmission through error detection CRC and retransmission of erred frames modem A device that transmits receives computer data through a communications channel such as radio or telephone lines It also changes signals received from the phone line back to digita...

Страница 55: ...he modem switches up to the next higher speed originate mode The mode used by your modem when initiating an outgoing call to a destination modem The transmit receive frequencies are the reverse of the called modem which is in answer mode parity A simple error detection method that checks the validity of a transmitted character Character checking has been surpassed by more reliable and efficient fo...

Страница 56: ... detection and error correction are some of e operations that may be defined in protocols RAM Random Access Memory is memory that is available for use when the modem is turned on but that clears of all information when the power is turned off The modem s RAM holds the current operational settings a flow control buffer and a command buffer remote digital loopback A test that checks the phone link a...

Страница 57: ... data in a single channel Compare it to parallel transmissions where data flows simultaneously in multiple channels start stop bits These signalling bits are attached to a character before and after the character is transmitted during asynchronous transmission terminal A device whose keyboard and display are used for sending and receiving data over a communications link This device differs from a ...

Страница 58: ...re it with characters per second V 8 The ITU T standard specification that covers the initial handshaking process V 17 fax An ITU T standard for making facsimile connections at 14 400 bps 12 000 bps 9600 bps and 7200 bps V 21 An ITU T standard for modems operating in asynchronous mode at speeds up to 300 bps full duplex on public switched telephone networks V 22 An ITU T standard for modem communi...

Страница 59: ...cifies modulation at 4800 bps with fallback to 2400 bps V 29 An ITU T standard for facsimile operations that specifies modulation at 9600 bps with fallback to 7200 bps V 32 An ITU T standard for modem communications at 9600 bps and 4800 bps V 32 modems fall back to 4800 bps when line quality is impaired V 32bis An ITU T standard that extends the V 32 connection range 4800 7200 9600 12 000 and 14 4...

Страница 60: ... a specific data compression scheme for use during V 42 connections V 90 The ITU T standard for 56 Kbps modem communications Xmodem The first of a family of error control software protocols used to transfer files between modems These protocols are in the public domain and are available from many bulletin board services XON XOFF Standard ASCII control characters used to tell an intelligent device t...

Страница 61: ...similar to the Ymodem except it relies on the modem for error checking which makes it faster Zmodem This is similar to Xmodem and Ymodem except it includes batch transfer the ability to recover from a partially complete transfer an autostart feature and improved efficiency ...

Страница 62: ......

Страница 63: ...s numeric options and you do not include a number zero is assumed For example if you type ATB the command ATB0 is assumed Every command except A and A must begin with the AT prefix and be entered by pressing ENTER The maximum command length is 58 characters This does not include the AT prefix carriage returns or spaces All defaults are based on the F1 Hardware Flow Control template loaded in NVRAM...

Страница 64: ...ssing any key aborts the operations A Re executes the last issued command Used mainly to redial This does not require the AT prefix or a Carriage Return A Re executes the last issued command continuously until the user intervenes or the command is executed forever Does not require the AT prefix or a Carriage Return Any key Aborts off hook dial answer operation and hangs up AT Required command pref...

Страница 65: ...ch tone pad tones L Dials the last dialled number P Pulse rotary dial R Originates call using answer reverse frequencies Sn Dials the phone number string stored in NVRAM at position n n 0 3 Phone numbers are stored with the Zn s command T Tone dial Comma Pause see the definition of the S8 register to which it is linked Semicolon Return to Command mode after dialling ...

Страница 66: ...al commands En Sets local echo E0 Echo OFF E1 Modem displays keyboard commands Fn Sets online local echo of transmitted data ON OFF F0 Local echo ON modem sends a copy of data it sends to the remote system to your screen F1 Local echo OFF receiving system may send a remote echo of data it receives Hn Controls ON OFF hook H0 Hangs up goes on hook H1 Goes off hook ...

Страница 67: ...agnostics I7 Product configuration I9 Plug and Play information I10 VXD Configuration Screen I11 Extended link diagnostics Ln Controls speaker volume available on internal modems only L0 Lowest volume L1 Low volume L2 Medium volume L3 High volume Mn Operates speaker M0 Speaker always OFF M1 Speaker ON until CONNECT M2 Speaker always ON M3 Speaker ON after dial until CONNECT On Returns online O0 Re...

Страница 68: ... Quiet mode no result codes Q2 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 Sr Displays contents of S Register r S Displays a list of the S Registers Vn Displays verbal numeric result codes V0 Numeric codes V1 Verbal codes ...

Страница 69: ...3 X4 0 OK 1 CONNECT 2 RING 3 NO CARRIER 4 ERROR 5 CONNECT 1200 6 NO DIAL TONE 7 BUSY 8 NO ANSWER 9 Reserved 10 CONNECT 2400 13 CONNECT 9600 18 CONNECT 4800 20 CONNECT 7200 21 CONNECT 12000 25 CONNECT 14400 43 CONNECT 16800 85 CONNECT 19200 Requires in dial string replaces NO CARRIER ...

Страница 70: ... X4 91 CONNECT 21600 99 CONNECT 24000 103 CONNECT 26400 107 CONNECT 28800 151 CONNECT 31200 155 CONNECT 33600 256 CONNECT 28000 260 CONNECT 29333 264 CONNECT 30666 268 CONNECT 32000 180 CONNECT 33333 272 CONNECT 34666 276 CONNECT 36000 184 CONNECT 37333 ...

Страница 71: ...NNECT 38666 284 CONNECT 40000 188 CONNECT 41333 192 CONNECT 42666 196 CONNECT 44000 200 CONNECT 45333 204 CONNECT 46666 208 CONNECT 48000 212 CONNECT 49333 216 CONNECT 50666 220 CONNECT 52000 224 CONNECT 53333 228 CONNECT 54666 232 CONNECT 56000 236 CONNECT 57333 ...

Страница 72: ...66 Xn Continued Xn Setting Result Codes X0 X1 X2 X3 X4 Adaptive Dialling Wait for 2nd Dial Tone W Wait for Answer Fast Dial ...

Страница 73: ...tion 0 Y3 Use factory configuration 1 Y4 Use factory configuration 2 Z Resets modem Z0 Resets modem to NVRAM profile selected by Y command Z1 Resets modem to NVRAM profile 0 Z2 Resets modem to NVRAM profile 1 Z3 Resets modem to factory default profile 0 F0 Z4 Resets modem to factory default profile 1 F1 Z5 Resets modem to factory default profile 2 F2 ...

Страница 74: ...result codes enabled A2 Modulation indicator added A3 Protocol indicators added LAPM MNP NONE error control and V42bis MNP5 data compression Bn Manages modem s serial port rate B0 Variable follows connection rate B1 Fixed serial port rate B2 Fixed in ARQ mode variable in non ARQ mode Cn Controls Carrier Detect CD signal C0 CD override C1 Normal CD operations ...

Страница 75: ...emplate no flow control F1 Hardware flow control template F2 Software flow control template Gn Sets Guard Tone G0 No guard tone U S and Canada G1 550 Hz guard tone some European countries requires B0 setting G2 1800 Hz guard tone U K requires B0 setting Hn Sets Transmit Data TD flow control see also Rn H0 Flow control disabled H1 Hardware flow control Clear to Send CTS H2 Software flow control XON...

Страница 76: ...to your modem and remote system I2 XON XOFF signals to your modem only Kn Enables disables data compression K0 Data compression disabled K1 Auto enable disable K2 Data compression enabled K3 MNP5 compression disabled Mn Sets Error Control ARQ for connections at 1200 bps and higher M0 Normal mode error control disabled M1 Reserved M2 Reserved M3 Reserved ...

Страница 77: ... sets the floor connect speed See also the table in the Un section N0 Connection speed is determined by the remote modem N1 300 bps N2 1200 bps N3 2400 bps N4 4800 bps N5 7200 bps N6 9600 bps N7 12 000 bps N8 14 400 bps N9 16 800 bps N10 19 200 bps N11 21 600 bps N12 24 000 bps N13 26 400 bps N14 28 800 bps N15 31 200 bps N16 33 600 bps N17 28 000 bps N18 29 333 bps N19 30 666 bps N20 32 000 bps N...

Страница 78: ...27 41 333 bps N28 42 666 bps N29 44 000 bps N30 45 333 bps N31 46 666 bps N32 48 000 bps N33 49 333 bps N34 50 666 bps N35 52 000 bps N36 53 333 bps N37 54 666 bps N38 56 000 bps N39 57 333 bps Pn Sets pulse rotary dial make break ratio P0 U S Canada ratio 39 61 P1 U K ratio 33 67 ...

Страница 79: ... Ready DSR operations S0 DSR override always ON S1 Modem controls DSR Tn Begins test modes T0 Ends testing T1 Analog 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 Analog Loopback with self test and error detector ...

Страница 80: ...p This command can also be used in conjunction with Nn Note U17 through U39 apply only to V 90 products N 0 N 0 U 0 Connects at best Attempts to connect at the speed possible speed defined by Nn between your modem and the remote modem Note These factory default settings should be sufficient for most users U 0 Connects at any speed Connects at any faster than the value speed between Un Nn and Un ...

Страница 81: ...00 bps U9 16 800 bps U10 19 200 bps U11 21 600 bps U12 24 000 bps U13 26 400 bps U14 28 800 bps U15 31 200 bps U16 33 600 bps U17 28000 bps U18 29333 bps U19 30666 bps U20 32000 bps U21 33 333 bps U22 34666 bps U23 36000 bps U24 37 333 bps U25 38666 bps U26 40000 bps U27 41 333 bps U28 42 666 bps U29 44 000 bps U30 45 333 bps U31 46666 bps U32 48000 bps ...

Страница 82: ... templates W0 Modifies the NVRAM 0 template Y0 W1 Modifies the NVRAM 1 template Y1 Yn Sets break handling Y0 Destructive but does not send break Y1 Destructive expedited Y2 Nondestructive expedited Y3 Nondestructive unexpedited Zn sWrites phone number string s to NVRAM at position n n 0 3 Zn L Writes last executed dial string to NVRAM at position n n 0 3 ...

Страница 83: ...77 Zn Displays the phone number stored at position n n 0 3 ZL Displays the last executed dial string Escapes to online command mode ...

Страница 84: ...ores the number of rings from an incoming call S0 must be greater than 0 S2 43 Stores the ASCII decimal code for the escape code character Default character is A value of 128 255 disables the escape code S3 13 Stores the ASCII code for the Carriage Return character Valid range is 0 127 S4 10 Stores the ASCII decimal code for the Line Feed character Valid range is 0 127 S5 8 Stores the ASCII decima...

Страница 85: ...ternational connection S8 2 Sets the duration in seconds for the pause option in the Dial command S9 6 Sets the required duration in tenths of a second of the remote modem s carrier signal before recognition by the modem S10 14 Sets the duration in tenths of a second that the modem waits to hang up after loss of carrier This guard time allows the modem to distinguish between a line disturbance fro...

Страница 86: ...the escape code sequence S13 0 Bit mapped register Select the bit s you want on and set S13 to the total of the values in the Value column For example ATS13 17 enables bit 0 value is 1 and bit 4 value is 16 Bit Value Result 0 1 Reset when DTR drops 1 2 Reset non MNP transmit buffer from 1 5K to 128 bytes 2 4 Set backspace key to delete 3 8 On DTR signal auto dial the number stored in NVRAM at posi...

Страница 87: ...modem 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 This is also helpful when a remote modem printe...

Страница 88: ...or V 22 1 2 Disable ARQ MNP for V 22bis 2 4 Disable ARQ MNP V 32 V 32bis 3 8 Disable MNP handshake 4 16 Disable MNP level 4 5 32 Disable MNP level 3 6 64 MNP incompatibility 7 128 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 S16 0 Reserved S17 0 Reserved ...

Страница 89: ...duration in minutes for the inactivity timer The timer activates when there is no data activity on the phone line at time out the modem hangs up S19 0 disables the timer S20 0 Reserved S21 10 Sets the length in 10 millisecond units of breaks sent from the modem to the computer applies to MNP or V 42 mode only S22 17 Stores the ASCII decimal code for the XON character S23 19 Stores the ASCII decima...

Страница 90: ... will want to use the default This register is useful for setting compatibility with older systems running under older operating software S26 0 Reserved S27 0 Bit mapped register setup To set the register see instructions for S13 Bit Value Result 0 1 Enables ITU T V 21 modulation at 300 bps 1 2 Enables unencoded non trellis coded modulation in V 32 mode 2 4 Disables V 32 modulation ...

Страница 91: ...lback mode 5 32 Disables V 32bis mode 6 64 Disable V 42 selective reject 7 128 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 ...

Страница 92: ...V 32 at 9600 bps S29 20 Sets the duration in tenths of a second of the V 21 answer mode fallback timer S30 0 Reserved S31 128 Reserved S32 2 Bit mapped register setup To set the register see the instructions for S13 Bit Value Result 0 1 V 8 Call Indicate enabled 1 2 Enables V 8 mode 2 4 Reserved 3 8 Disable V 34 modulation 4 16 Disable V 34 modulation 5 32 Disable x2 modulation ...

Страница 93: ...ster see the instructions for S13 Bit Value Result 0 1 Disable 2400 symbol rate 1 2 Disable 2743 symbol rate 2 4 Disable 2800 symbol rate 3 8 Disable 3000 symbol rate 4 16 Disable 3200 symbol rate 5 32 Disable 3429 symbol rate 6 64 Reserved 7 128 Disable shaping S34 0 Bit mapped register setup To set registers see instructions for S13 ...

Страница 94: ...sable 8S 2D trellis encoding 1 2 Disable 16S 4D trellis encoding 2 4 Disable 32S 2D trellis encoding 3 8 Disable 64S 4D trellis encoding 4 16 Disable non linear coding 5 32 Disable TX level deviation 6 64 Disable Pre emphasis 7 128 Disable Pre coding S35 S37 Reserved ...

Страница 95: ...RQ call This allows time for a remote modem to acknowledge receipt of all transmitted data before it is disconnected The modem immediately hangs up when DTR drops This option only applies to connections terminated by dropping DTR If the modem receives the ATH command it ignores S38 and immediately hangs up S39 S40 Reserved S41 0 Reserved S42 0 Reserved ...

Страница 96: ...ode 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 Then the modem waits for a specified time before OK appears on screen The pause is set in 10 millisecond intervals n is the number of 10 millisecond intervals that pass before OK appears n 0 255 ...

Страница 97: ...that pass before OK appears n 0 255 Note This command terminates with OK when either the specified amount of silence is detected or when the user types anything which is ignored 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...

Страница 98: ...ocol using the modulation specified by n n 3 24 48 72 96 97 98 121 22 145 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 FRH n Receives data framed in the HDLC protocol 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...

Страница 99: ...ing ring 3 NO CARRIER No carrier is being received from the modem 4 ERROR The previous command line has not been recognized or was completed abnormally 5 NO DIAL TONE Opt Dial tone was not received within the time out period 6 BUSY Optional A busy signal was detected 64 CONNECT FAX Optional The modem has established a fax connection This response is used only when the fax mode is selected ...

Страница 100: ... a delay of at least 30 minutes before attempting to call the number again Use of factory default settings will result in the modem being operated in a non compliant manner Failure to set the modem and any application software used with the modem to the values mentioned in the command restrictions paragraph will result in the modem being operated in a non compliant manner Consequently there would ...

Страница 101: ...nts of AS3260 1 2 8 5 for SELV circuits Command Restrictions The modem commands shown below have their default values and range limits set to meet ACA approval requirements These settings are different from the ones listed in the Technical Quick Reference section of the User s Guide Reference found on our support Web page ...

Страница 102: ...B Bell ITU T B0 B0 only G Guard Tone G2 G2 only P Pulse Dial Ratio P2 P2 only S0 Auto Answer 3 0 2 5 S6 Pre Dial Pause 2 2 5 S7 Wait for Carrier 60 20 255 S8 Dial Pause 2 2 255 S11 Tone Dial Speed 75 75 255 S27 Bit Mapped Register 1 0 255 ...

Страница 103: ...ments are 5 VDC 5 250mA 12 VDC 10 50mA 12 VDC 10 10mA Network Compatibility Declaration This equipment is designed to work satisfactorily on all European Union PSTN networks This equipment is supplied with a suitable PSTN connector for the country in which it was supplied If it is required to use this equipment on a different network to the one for which it was supplied the user is advised to cont...

Страница 104: ...cover of the computer Additionally unplug the power to the computer and all attached peripherals before removing the cover of the computer CE Compliance For connection to the Public Switched Telephone Network Electromagnetic Compatibility This device complies with the following standards in accordance with the European Directives 89 336 EEC This device complies with the requirements of European Di...

Страница 105: ... on the bottom of the modem being as shown below CE0560X prior to April 8 2001 CE after April 8 2001 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 However due to differences between the individual PSTNs provided in different countries the approval does not of itself g...

Страница 106: ...s 90 days If a product does not operate as warranted above during the applicable warranty period 3Com shall at its option and expense repair the defective product or part deliver to Customer an equivalent product or part to replace the defective item or refund to Customer the purchase price paid for the defective product All products that are replaced will become the property of 3Com Replacement p...

Страница 107: ...oftware products or to replace any defective media with software which substantially conforms to applicable 3Com published specifications Customer assumes responsibility for the selection of the appropriate applications program and associated reference materials 3Com makes no warranty or representation that its software products will meet Customer s requirements or work in combination with any har...

Страница 108: ...ware accurately exchange date data with the 3Com products with the exception of those products identified at 3Com s Web site http www 3com com as not meeting this 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 US Robotics Corporation This Year 2000 limited warranty does not apply to Heritage US ...

Страница 109: ...ated proof of purchase may be required Products returned to 3Com s Corporate Service Center must be pre authorized by 3Com with a Return Material Authorization RMA number marked on the outside of the package and sent prepaid and packaged appropriately for safe shipment and it is recommended that they be insured The repaired or replaced item will be shipped to Customer at 3Com s expense not later t...

Страница 110: ...e delayed due to export or import procedures When an advance replacement is provided and Customer fails to return the defective product to 3Com within fifteen 15 days after shipment of the replacement 3Com will charge Customer for the replacement product at list price 3Com shall not be responsible for any software firmware information or memory data of Customer contained in stored on or integrated...

Страница 111: ...RRANTIES TERMS OR CONDITIONS OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND SATISFACTORY QUALITY 3COM NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE INSTALLATION MAINTENANCE OR USE OF ITS PRODUCTS 3COM SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT IN THE PRODUCT DOES...

Страница 112: ...NESS LOSS OF INFORMATION OR DATA OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE INSTALLATION MAINTENANCE USE PERFORMANCE FAILURE OR INTERRUPTION OF ITS PRODUCTS EVEN IF 3COM OR ITS AUTHORIZED RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES AND LIMITS ITS LIABILITY TO REPAIR REPLACEMENT OR REFUND OF THE PURCHASE PRICE PAID AT 3COM S OPTION THIS DISCLAIMER OF LIAB...

Страница 113: ...u When the implied warranties are not allowed to be excluded in their entirety they will be limited to the duration of the applicable written warranty This warranty gives you specific legal rights which may vary depending on local law GOVERNING LAW This Limited Warranty shall be governed by the laws of the State of California U S A excluding its conflicts of laws principles and excluding the Unite...

Страница 114: ...108 Contact 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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