This manual covers installation and operating instructions for the following U.S. Robotics modems: • Sportster 56K* faxmodem for Macintosh computers Sportster, U.S. Robotics, and the U.S. Robotics logo are registered trademarks and Connections, x2, and the x2 logo are trademarks of U.S. Robotics. Macintosh is a registered trademark and Mac is a trademark of Apple Computer, Inc. MacComCenter is a trademark of Smith Micro Software, Inc. America Online is a registered trademark of America Online Inc.
Table of Contents U.S. Robotics: The Intelligent Choice in Information Access™ 1 Welcome to x2™ Information Access 3 Features 5 Installation 7 Software and Registration 11 U.S.
U.S. Robotics: The Intelligent Choice in Information Access Congratulations! You have just purchased the Sportster® 56K faxmodem for Macintosh® computers. Since 1976, U.S. Robotics has grown to become a key manufacturer and developer of information access technology. U.S. Robotics' advanced technology allows you to use your faxmodem to open up a new world of information access.
Welcome to x2 x2 Information Access which restrict power output of your service provider’s modems, current download speeds are limited to 53Kbps. This modem is software upgradable, allowing easy upgrades to new features and enhancements when they become available. An integrated end-to-end solution from the leader The latest breakthrough in online communications Until now, 33.6 Kbps was thought to be the practical limit for speed over standard phone lines. Now, U.S.
Taking advantage of the modern telephone network x2 technology uses the increasingly digital telephone network to bring you faster downloads by eliminating the analog-todigital conversion in the downstream path. x2 takes advantage of the typical network configuration found when an analog subscriber connects to a digitally connected server. x2 bypasses the analog-to-digital conversion in the downstream path to use nearly all of the available 64K network bandwidth.
Features Data Communications V.42/MNP 2-4 error control and V.42 bis/MNP 5 data compression. Your new modem will transmit at speeds up to 33.6Kbps. And with x2 technology, you can download at speeds up to 56Kbps∗. This will save you money in online service charges and long distance bills. Fax Capability Not only is your modem fast, it is compatible with internationally accepted standards which allow you to connect to other modems across the globe. These standards include: V.34+, V.32 bis, V.32, V.
Installation Getting Started Before you begin, make sure that the following items are at hand: Install your modem: 1. This package: modem, RJ11 (standard) phone cord, power adapter, serial connecting cable, this guide. 2. Firmly attach the enclosed serial connecting cable to both the modem and the port on the back of your computer marked with a telephone icon. 2. Not with this package: analog (standard) phone jack. 1. Turn off your computer.
3. Connect the power adapter to your modem and plug it into the wall. 4. Plug one end of the phone cord into the telephone jack of the modem (labeled with a wall plug icon on the bottom of the case) and the other end into the telephone jack. If you wish to use your modem and phone with the same telephone wall jack, plug your phone’s cord into the other available port on the back of your modem. Once your modem is connected, you’ll need to install the MacComCenter software included with your modem.
The Serial Interface Macintosh computers require an 8-pin mini-DIN hardware handshaking cable for high-speed communications. This cable is included in your Sportster for Macintosh package. Hardware Handshaking Cable Pin Assignments Mini DIN-8 Connector DB-25 Handshake Output HSKo 1 4 RTS 20 DTR Handshake Input HSKi 2 5 CTS Transmit Data+ TXD- 3 2 TXD Ground GND 4 7 GND Receive Data+ RXD+ 8 7 GND Receive Data- RXD- 3 RXD Transmit Data+ TXD+ 6 Gen.
Software and Registration MacComCenter ™ Software MacComCenter, a software application designed by Smith Micro Software, Inc., is included with your new Sportster modem. Follow these instructions to install the software. Please refer to the electronic MacComCenter user’s guide on your Connections™ CD for details about operating the software. Follow these steps to install MacComCenter: 1. Quit all other applications. 2. Insert the Connections CD-ROM into your CD-ROM drive. 3. Double-click on the U.S.
Registration We recommend you fill out the enclosed registration card and send it back to us. Registering your modem allows you to automatically receive priority notification of new product releases, product upgrades, and other special services for registered users.
U.S. Robotics Online for Mac™ Users Downloading Enhanced Graphics Software U.S. Robotics has a Mac™ specific BBS. Please follow these instructions to view the Mac BBS with enhanced graphics capabilities. 1. Start your communications software and enter Terminal (sometimes called Command) mode. The software settings for the BBS are as follows: ANSI terminal emulation Data Bits: 8 Parity: None Stop Bits: 1 2.
2. Double-click on the new TeleFinder/User 4.0 icon. 3. Enter your name and choose a password. Next, select Modem from the same screen. You will now be asked to select/double-click on the modem you purchased. Click on the U.S. Robotics Sportster model you purchased. 4. Type 1-847-676-1598 in the Telephone Number box. 5. Click the OK box, followed by the Connect box. The modem should now connect to our site at U.S. Robotics. Congratulations! You have successfully logged onto the Macintosh BBS at U.S.
World Wide Web A U.S. Robotics Home Page containing much of the same information as the Internet on Demand listing as well as information about U.S. Robotics. Log on to http://www.usr.com. Fax on Demand Provides automatic technical support via fax with immediate response. This service provides documents on product information, quick reference cards and installation help. Call (800) 762-6163 toll free in the U.S. and Canada. International callers dial (847) 6768536.
Fax and Technical Support Hotline Technical questions about U.S. Robotics modems can also be answered via fax or by live technical support representatives. Fax (847) 676-7323 (The fax machine can receive faxes 24 hours a day.) Technical Support (847) 982-5151 (8:00 a.m.—6:00 p.m., Mon.–Fri., Central time) Priority “No Hold” Service (900) 555-USR1 (8:00 a.m.—6:00 p.m., Mon.–Fri.
Troubleshooting Before the modems connect… If your modem doesn't respond to any AT commands, • Make sure the modem is on. • Make sure the computer is in Terminal mode. • Type in all upper (AT) or lower (at) case. • Check that the bit rate is not 14,400 or 28,800. If your modem displays double characters on your monitor (example: AATT), • You can turn the local echo off on the modem by typing ATEO in your software’s terminal mode.
If both modems exchange carrier signals but fail to establish a communications link, • • • 18 Place the call again. The telephone company routes all calls, even local calls, differently each time you call. Call a different modem to see if the problem persists. The remote modem might be an older 2400 bps modem that doesn't support error control. Disable error control by entering the following command in terminal mode: AT&M0 and place the call again.
• • Make sure that your software and modem are set to the same flow control setting and to a fixed serial port rate (it should not be 14,400 or 28,800).
Are you still having problems? • • • • 20 Review this manual. Call or visit your modem dealer. They will be able to give you assistance. If you’re able, take advantage of support available through U.S. Robotics’ various online support sites. You can access them at the addresses listed on this page and in your Quick Install Guide. If your dealer cannot help you and you cannot access the online support sites, please contact U.S. Robotics Customer Support.
Internet FTP: ftp.usr.
If you must return the modem to us... • • • • 22 Call U.S. Robotics Customer Support. When you call, please have your modem serial number (found on the modem and on the outside of the box) ready. After a Support Representative has determined that you need to return the modem, they will give you a Service Request Order (SRO) number. Ship the unit, postage paid, in a strong box made of corrugated cardboard with plenty of packing material.
Glossary Cross references are printed in boldface. Cross references with items in the Command Summary chapter are printed in italics. Analog Loopback A modem self-test in which data from the keyboard or an internal test pattern is sent to the modem's transmitter, modulated into analog form, looped back to the receiver, and demodulated into digital form. Analog 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.
ASCII American Standard Code for Information Interchange. A 7-bit binary code (0s, 1s) 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. Because the time lapses between transmitted characters are not uniform, the receiving modem must be signaled as to when the data bits of a character begin and when they end.
Bits Per Second (BPS) The bits (binary digits) per second rate. Thousands of bits per second are expressed as kilobits per second or kbps. Carrier A tone signifying a connection the modem can alter to communicate data across telephone lines. Buffer A memory area used as temporary storage during input and output operations. An example is the modem's command buffer. Character A representation, coded in binary digits, of a letter, number, or other symbol.
Class 1 and 2.0 International standards used between facsimile application programs and facsimile modems for sending and receiving faxes. Cyclic Redundancy Checking (CRC) An error-detection technique consisting of a cyclic algorithm performed on each block or frame of data by both sending and receiving modems. The sending modem inserts the results of its computation in each data block in the form of a CRC code.
devices, and operational until changed by the user or software. Detect Phase In the ITU-T V.42 error-control protocol, the first stage in establishing whether both modems attempting to connect have V.42 capability. Dictionary The term used for compression codes built by the V.42 bis data compression algorithm. Digital Loopback A test that checks the modem's RS-232 interface and the cable that connects the terminal or computer and the modem.
error detection (CRC) and retransmission of flawed frames (ARQ). Facsimile A method for transmitting the image on a page from one point to another. Commonly referred to as fax. Fax Mode The mode in which the fax modem is capable of sending and receiving files in a facsimile format. See definitions for v.17, v.27ter, and v.29. Flow Control A mechanism that compensates for differences in the flow of data input to and output from a modem or other device. See commands &Hn, &In, and &Rn.
Hz Hertz, a frequency measurement unit used internationally to indicate one cycle per second. protocols, LAPM uses cyclic redundancy checking (CRC) and retransmission of corrupted data (ARQ) to ensure data reliability. ITU-T An international organization that defines standards for telegraphic and telephone equipment. For example, the Bell 212A standard for 1200-bps communication in North America is observed internationally as ITU-T V.22. For 2400-bps communication, most U.S. manufacturers observe V.
MNP Microcom Networking Protocol, an errorcontrol protocol developed by Microcom, Inc., and now in the public domain. There are several different MNP protocols, but the most commonly used protocol ensures error-free transmission through error detection (CRC) and retransmission of errored frames. Modem A device that transmits/receives computer data through a communications channel such as radio or telephone lines.
Parity A simple error-detection method that checks the validity of a transmitted character. Character checking has been surpassed by more reliable and efficient forms of error checking, including the V.42 and the MNP 2-4 protocols. Either the same type of parity must be used by two communicating computers or both may omit parity. Protocol A system of rules and procedures governing communications between two or more devices.
Serial Transmission The consecutive flow of data in a single channel. Compare to parallel transmissions where data flows simultaneously in multiple channels. Start/Stop Bits The signaling bits attached to a character before 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. Differs from a microcomputer or a mainframe in that it has little or no internal processing capabilities.
V.22 A ITU-T standard for modem communications at 1200 bps, compatible with the Bell 212A standard observed in the U.S. and Canada. V.32 A 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.22 bis A ITU-T standard for modem communications at 2400 bps. The standard includes an automatic link negotiation fallback to 1200 bps and compatibility with Bell 212A/V.22 modems. V.32 bis A ITU-T standard that extends the V.
V.42 A ITU-T standard for modem communications that defines a two-stage process of detection and negotiation for LAPM error control. 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. V.42 bis An extension of ITU-T V.42 that defines a specific data compression scheme for use during V.42 connections.
Technical Quick Reference The Quick Reference appendix includes information about: • • • Front Panel Lights Command Summary S-Registers 35
Front Panel Lights Symbol Meaning Status AA .......... Auto Answer......................Answer mode: ON when register S0 is set to 1 or higher (Auto Answer) and when answering a call; OFF when modem originates a call. Light flashes when there is an incoming call. 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). RD........... Received Data............
Command Summary • • • • 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 since it is not stored in the modem buffer.) If a command has numeric options and you don’t include a number, zero is assumed. For example, if you type ATB, the command ATB0 is assumed. Every command except A/ and +++ must begin with the AT prefix and be entered by pressing . The maximum command length is 58 characters.
Command Set $ Use in conjunction with D, S, or & commands (or just AT) to display a basic command list; online help. A Manual Answer: goes off hook in answer mode. Pressing 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. Any key Aborts off-hook dial/answer operation and hangs up. AT Required command prefix, except with A/ and +++. Use alone to test for OK result code. Bn U.S.
Dn (continued) ! (Exclamation point) Flashes the switch hook. / Delays for 125 msec. before proceeding with dial string. W Wait for second dial tone (X2 or X4); linked to S6 register. @ Dials, waits for quiet answer, and continues (X3 or higher). $ Displays a list of Dial 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.
Ln Mn Controls speaker volume (internals only). L0 Low volume L1 Low volume L2 Medium volume L3 High volume 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 Returns online O1 Returns online and retrains P Sets pulse dial (for phone lines that don’t support touchtone dialing). Qn Displays/suppresses result codes.
Xn Sets result code displayed. Default is X4.
Xn Setting (cont.
Yn Zn Selects power-on/reset default configuration. Y0 Default is profile 0 setting in NVRAM Y1 Default is profile 1 setting in NVRAM Y2 Generic Template (&F0) Y3 Hardware Flow Control (&F1) Y4 Software Flow Control (&F2) Resets modem. Z0 Resets modem to NVRAM profile selected by Y command or dip 7.
&Dn Controls Data Terminal Ready (DTR) operations. &D0 DTR override &D1 DTR toggle causes online Command mode &D2 Normal DTR operations &D3 Resets on receipt of DTR &Fn Loads a read-only (nonprogrammable) factory configuration. &F0 Generic template &F1 Hardware flow control template &F2 Software flow control template 44 &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.
&In Sets Receive Data (RD) software flow control (see also &Rn). &I0 Software flow control disabled &I1 XON/XOFF signals to your modem and remote system &I2 XON/XOFF signals to your modem only &I3 Host mode. Applies only to modems attached to a Hewlett Packard mainframe that uses the ENQ/ACK protocol. Use in ARQ mode only. &I4 Terminal mode. Applies only to modems attached to terminals in a Hewlett Packard system that uses the ENQ/ACK protocol. Use in ARQ mode only.
&Nn 46 Sets connect speed. If connection cannot be established at this speed, the modem will hang up. Sets ceiling connect speed if &Un is greater than 0. See &Un.
&Sn Controls Data Set 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 selftest and error detector &T8 Analog Loopback with selftest and error detector &Un Sets floor connect speed when &Un is set greater than 0.
&Un (cont.) &U22 &U23 &U24 &U25 &U26 &U27 &U28 &U29 &U30 &U31 &Wn &Yn &Zn=s 48 45,333 bps 46,666 bps 48,000 bps 49,333 bps 50,666 bps 52,000 bps 53,333 bps 54,666 bps 56,000 bps 57,333 bps Writes current configuration to NVRAM templates. &W0 Modifies the NVRAM 0 template (Y0) &W1 Modifies the NVRAM 1 template (Y1) Sets break handling. &Y0 Destructive, but doesn’t send break &Y1 Destructive, expedited &Y2 Nondestructive, expedited Writes phone number string s to NVRAM at position n (n = 0−3).
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 S0 0 Sets the number of rings on which to answer in Auto Answer Mode. When set to 0, Auto Answer is disabled. S1 0 Counts and stores 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 +.
Register Default Function S9 6 Sets the required duration, in tenths of a second, of the remote modem’s carrier signal before recognition by the Sportster. S10 7 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 from a true disconnect (hang up) by the remote modem.
Register Default S13 0 Function 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 0 1 2 3 Value 1 2 4 8 4 16 5 6 7 32 64 128 Result Reset when DTR drops. Reset non-MNP transmit buffer from 1.5K to 128 bytes.* Set backspace key to delete. On DTR signal, auto dial the number stored in NVRAM at position 0.
Register Default Function S14 0 Reserved. S15 0 Bit-mapped register setup. To set the register, see instructions for S13. Bit 0 1 2 3 4 5 6 7 8 S16 0 52 0 Result Disable ARQ/MNP for V.22 Disable ARQ/MNP for V.22bis Disable ARQ/MNP V.32/V.32bis/V.32terbo Disable MNP handshake Disable MNP level 4 Disable MNP level 3 MNP incompatibility Disable V.42 operation Disable V.42 detect phase. (The sum of the values of bits 3 and 7.) Bit-mapped register setup.
Register Default Function S18 0 Test timer for &T loopback testing. Sets the time in seconds of testing before the modem automatically times out and terminates the test. When set to 0, the timer is disabled. Valid range is 1-255. S19 0 Sets the 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.
Register Default S27 S28 0 Function Bit-mapped register setup. To set the register, see instructions for S13. Bit 0 Value 1 1 2 2 3 4 8 4 5 6 7 16 32 64 128 8 Value 0 8 255 54 Result Enables ITU-T V.21 modulation at 300 bps for overseas calls; in V.21 mode, the modem answers both overseas and domestic (U.S. and Canada) calls, but only originates V.21 calls. (Default Bell 103) Enables unencoded (non-trellis coded) modulation in V.32 mode. Disables V.32 modulation.
Register Default Function 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 Connection bit-mapped operations. Stores various modulation and call control flags (default=0). To set the register, see the instructions for S13. Bit 0 1 2 3 4 5 6-7 Value 1 2 4 8 16 32 32-128 Result V.8 Call Indicate enabled Enables V.8 mode Reserved Disable V.34 modulation Disable 33.
Register Default S33 0 Function V.34 and v.34+ connection setup bit-mapped control flags (default=0). To set registers, see the instructions for S13. Bit 0 1 2 3 4 5 6 7 S34 0 Result Disable 2400 symbol rate Disable 2743 symbol rate Disable 2800 symbol rate Disable 3000 symbol rate Disable 3200 symbol rate Disable 3429 symbol rate Reserved Disable shaping V.34 and V.34+ connection setup bit-mapped control flags (default=0). To set registers, see instructions for S13.
Register Default Function S35-S37 Reserved S38 0 Sets an optional delay, in seconds, before a forced hang-up and clearing of the Transmit buffer when DTR drops during an ARQ 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.
Regulatory Information Manufacturer’s Declaration of Conformity U.S. Robotics 7770 North Frontage Road Skokie, Illinois 60077-2690 U.S.A. declares that the product Sportster 56K Faxmodem for Macintosh computers (model 1789) 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 received including interference that may cause undesired operations.
(Manufacturer’s Declaration of Conformity, continued) See the bottom of your modem or your modem board for the FCC 68 number of your modem. IC (Canada) This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the interference-causing equipment standard entitled Digital Apparatus, ICES-003 of Industry Canada.
Cable Requirements The connection from the modem to the computer must be made with a high quality, shielded cable to ensure compliance with FCC limits. Connecting to the Telephone Company It is not necessary to notify the telephone company before installing the modem. However, the telephone company may request the telephone number(s) to which the Sportster is connected and the FCC information printed on pages 59–60.
Fax Branding The Telephone Consumer Protection Act of 1991 makes it unlawful for any person to use a computer or other electronic device, including fax machines, to send any message unless such message clearly contains in a margin at the top or bottom of each transmitted page or on the first page of the transmission, the date and time it is sent, an identification of the business or other entity, or other individual sending the message, and the telephone number of the sending machine or of such business, ot
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 cause interference to radio and television reception.
If necessary, consult your dealer or an experienced radio/television technician for additional suggestions. You may find the following booklet, prepared by the Federal Communications Commission, helpful: How to Identify and Resolve Radio-TV Interference Problems Stock No. 004-000-0345-4 U.S.
an acceptable method of connection. In some cases, the company’s inside wiring associated with a single-line, individual service may be extended by means of a certified connector assembly (telephone extension cord.) The customer should be aware that compliance with the above conditions may not prevent degradation of service in some situations.
subject only to the requirement that the sum of the Ringer Equivalence Numbers of all the devices does not exceed 5.” REN: _______________ WARRANTY AND REPAIR SERVICE CENTER: (Repair/service center name and address) (phone number) AVIS: L'étiquette d'Industrie Canada identifie le matériel homologué. Cette étiquette certifie que le matériel est conforme à certaines normes de protection, d'exploitation et de sécurité des réseaux de télécommunications.
dégradation du service dans certaines situations. Actuellement, les entreprises de télécommunication ne permettent pas que l'on raccorde leur matériel à des jacks d'abonné, sauf dans les cas précis prévus par les tarifs particuliers de ces entreprises. Les réparations de matériel homologué doivent être effectuées par un centre d'entretien canadien autorisé et désigné par le fournisseur.
REN: ____________ Centre de guarantie et de service après-vente: (adresse et numéro de téléphone.
Limited Warranty U.S. Robotics Access Corp. warrants to the original end-user purchaser that this product will be free from defects in materials and workmanship for a period of five years from the date of purchase. During the limited warranty period, and upon proof of purchase, the product will be repaired or replaced (with the same or a similar model, which may be a refurbished model) at U.S. Robotics’ option, without charge for either parts or labor.
This limited warranty gives you specific legal rights. You may have others, which vary from state to state. Some states do not allow limitations on duration of an implied warranty, or the exclusion or limitation of incidental or consequential damages, so the above exclusion or limitation may not apply to you. To obtain service under this limited warranty, contact the U.S. Robotics Technical Support Department at 847-982-5151 or by mail at U.S. Robotics, 7770 N. Frontage Road, Attn.: Technical Support Dept.
