COURIER High Speed Modems The high speed, high performance modem you can plug in and forget about... forever. "A perfect modem for an imperfect world." The Courier HST Dual Standard, Courier V.32 bis, and Courier HST modems were all designed by U.S. Robotics to fit one basic description: a modem that provides state-of-the-art technology, unsurpassed reliability, and straightforward simplicity. A modem that is uncompromising in every detail, flexible enough to meet the varied needs of the Fortune 500, yet easy to set up and use. And reliable enough to forget about. "A modem with the future built in." In the fast paced, high tech data communications industry, technological development increases at an exponential rate. A "cutting edge" product can quickly become obsolete. That's why U.S. Robotics' Advanced Development team designed Courier modems with a unique modular configuration. It keeps the "heart" of the Courier modem on a removable card, allowing a V.32 bis modem to upgrade quickly and easily to the future CCITT 28.8K bps standard when it becomes available. Rather than resign ourselves to the future, we build it into the product. U.S. Robotics builds Courier modems to be state-of-the-art-forever. "A perfect modem? ... Forget about it." As proud as we are of our Courier modems, we don't want you to think about them. Because aside from our dedicated technical staff, nobody wants to spend time thinking about their modem. They want it to work, easily and reliably. Courier modems work. "All modems are not created equal." Don't be fooled. Most manufacturers buy their components elsewhere. That doesn't mean we do. U.S. Robotics designs and builds our own data pump here in the U.S.A., allowing us to employ the most stringent quality control and testing procedures. Simply put, we make the fastest, most reliable CCITT standard data pumps in the world. "Because high speed isn't enough." Just because a modem is labeled high speed doesn't mean it's high performance, delivering the speed it claims. In order to achieve the highest possible throughput, a modem needs to be flexible and responsive. That's why Courier modems use ASL - Adaptive Speed Leveling. Only U.S. Robotics has it. It means Couriers can change speed, increasing data flow as line conditions improve. With ASL, your files are always transferred as fast as conditions will allow. "The modem that's right for you." Finding the particular piece of equipment that best suits your data communication needs is never easy. That's why U.S. Robotics offers 20 different Courier modems-so you can find the perfect fit. * Courier HST 16.8 - for high speed asymmetrical operation and compatibility with the enormous installed base of HSTs. * Courier V.32 bis - for national and international compatibility and compliance with the most advanced CCITT standards. Symmetric full duplex operation provides lightning-fast two-way transfers. * Courier HST Dual Standard - when you need the most widely compatible high speed modem. Operates in both HST and CCITT V.32 bis protocols. Each Courier comes in stand-alone external, PC-bus internal, Rackmount, and Total Control versions. If you need send/receive Group Ill FAX capability, external and internal Couriers are offered in FAX versions as well. Courier V.32 bis and Courier HST Dual Standard modems are also available in PS/2 internal card versions. Courier HST * High Speeds: 16.8, 14.4, 12.0, 9.6, 7.2, and 4.8 Kbps in HST mode, with back channels at 450 and 300 bps. * Maximum throughput: 57.6K bps- 24 times faster than a 2400 bps modem that doesn't compress data. * High speed compatibility: HST. You're compatible with the vast installed base of HST modems. * Asynchronous transmission. * Demand-driven direction control automatically switches the high speed channel direction if data demand reverses. * Asymmetric full duplex operation. The 16.8K bps data channel and 450 bps back channel are highly efficient for one-way file transfers, and still provide excellent response when you're working interactively. * Available in external and internal, with or without FAX, Rackmount and Total Control versions. Courier V.32 bis * High Speeds: 14.4, 12.0, 9.6, 7.2, and 4.8 Kbps. * Maximum throughput: 57.6K bps- 24 times faster than a 2400 bps modem that doesn't compress data. * High speed compatibility: CCITT V.32 bis at 14.4, 12.0, 9.6, 7.2, and 4.8 Kbps. CCITT V.32 at 9.6 and 4.8 Kbps * Fully compatible with all high speed national and international standards. * Symmetric full duplex operation gives you the efficiency you need for two-way file transfers, and response is almost instantaneous when you're working interactively. * Asynchronous transmission at all speeds connects you to the wide world of PCs, minis, and terminals. * Synchronous transmission at speeds above 300 bps for communication with mainframes. * Available in external and internal, with or without FAX, PS/2 internal, Rackmount and Total Control versions. Courier HST Dual Standard * The Courier HST Dual Standard can operate in either HST or CCITT V.32 bis protocols, increasing high speed compatibility and versatility. * Available in external and internal, with or without FAX, PS/2 internal, Rackmount and Total Control versions. Features * NEW! Remote Configuration allows a user to change a modem's setup from another site, over the phone lines. A real time saver for Data center managers and corporate help desks, where far-flung modems frequently need troubleshooting. * ASL (Adaptive Speed Leveling), up or down, gives you 100% error-free transmission at the highest possible speed under prevailing line conditions. Automatically selects the highest speed and error control protocol supported by the remote unit. You get the maximum possible throughput, and you don't have to worry about compatibility. * 9600 bps, CCITT Group III send and receive FAX capability with FAX software (on FAX models). * Nonvolatile Random Access Memory. Easily programmable memory keeps user-defined configuration. * Phone number storage gives you an auto-dial directory of frequently used numbers. * Auto Dial. Using the industry standard "AT" command set in asynchronous mode, you can dial or program from your keyboard. * Auto Answer. You don't have to run for the phone or stand by a switch. * Automatic Redialing will redial up to 10 times, automatically. * On screen help gives you instant answers to most questions without opening the manual. * Externally accessible DIP switches. No disassembly required. * RS232 pins 2 and 3 (Send and Receive) are switch-reversible. Easy to use with terminal, computer, or printer. (Desktop models only.) * Flow control allows fixed DTE rates up to 57.6K bps. * 12 LED front panel indicators (external models). You can clearly see what your modem is doing. * Built in speaker with volume control. You can hear call progress. (Not on Rackmount and Total Control.) * Bottom label help summary. Particularly helpful for setting DIP switches. (Desktop models only.) * Complete diagnostic capability. Local analog, digital loopback, and remote digital loopback self-testing make pinpointing a problem easy. * U.S./CCITT answer sequences. You're compatible with the current standard. For Your Information * Desktop model size: 6.25" wide, 10.25" deep, 1.25" tall. * Internal size: 3/4 PC-bus card. PS/2: Micro-channel full card. * Warranty: A full 2 year warranty on parts and labor. Warranty may be extended indefinitely for a nominal fee. * Package Contents: Modem, power adaptor, RJ11C phone cord, manual. Compatibility * CCITT V.22 bis at 2400 bps * CCITT V.22 and Bell 212A at 1200 bps. * CCITT V.23 at 600 and 1200 bps. * CCITT V.21 and Bell 103 at 300 bps. ERROR CONTROL AND DATA COMPRESSION: * CCITT V.42 error control. * MNP Levels 2-4 error control. * CCITT V.42 bis data compression. * MNP Level 5 data compression. * Trellis coded modulation, twice as effective as QAM, protects your data against phone line noise. HIGH SPEED MODEMS * Exclusive Adaptive Speed Leveling (ASL) automatically adjusts data flow for optimum throughput. * Unique modular architecture ensures future upgradability. * The corporate standard of the Fortune 500. U.S. Robotics, Inc. Western Sales Office 5201 Great America Parkway Suite 320 Santa Clara, CA 95054 PHONE: (408) 562-6226 U.S. Robotics, Inc. Northeast Sales Office 575 Madison Avenue New York, NY 10022 PHONE: (212) 605-0420 U.S. Robotics, Inc. Southeast Sales Office 400 Perimeter Center Terrace Suite 900 Atlanta, GA 30346 PHONE: (404) 804-6400 England U.S. Robotics, Ltd. 224 Berwick Ave. Slough, Berkshire SL1 4QT PHONE: +44-0753-8111-80 FAX: +44-0753-8111-91 France U.S. Robotics, s.a. Cityparc, 3, rue Lavoisier F-59650 Villeneuve d'Ascq PHONE: +33-20-47-12-10 FAX: +33-20-91-99-27 U.S. Robotics The Intelligent Choice in Data Communications 8100 N. McCormick Blvd. Skokie, IL 60076-2999 PHONE: 1-800-DIAL-USR FAX: (708) 982-5235 In Canada, call: 1-800-553-3560 U.S. Robotics and the U.S. Robotics logo are registered trademarks of U.S. Robotics, Inc. Courier, Courier HST, Courier V.32 bis, Courier HST Dual Standard, Total Control, and Adaptive Speed Leveling (ASL) are trademarks of U.S. Robotics. Other product names are used for identification purposes only and may be trademarks and/or registered trademarks of their respective companies. R2.19.93