USR3453C

COURIER® EXTERNAL 56K* V.92 GLOBAL DIAL-UP BUSINESS MODEM - Discontinued

NOTE: The USR3453C has been discontinued. The Courier Lite 56K Business Modem (USR5686G-PRO) is the recommended replacement‡. The USR5686G-PRO does NOT support leased-line connections, Synchronous, or V.25 bis. 

MISSION CRITICAL DIAL-UP CONNECTIVITY FOR BUSINESS 

The USR® Courier® 56K Business Modem with V.Everything® and V.Everywhere® technology offers the perfect solution for both Out of Band Management of networks or Point of Sale applications. Many modems claim reliability, but few match the real-world performance of Courier modems. Even fewer offer the multitude of advanced business features found on this modem: global usage, Carrier Loss Redial, and Dial and Dialback Security. Remote management capabilities let you configure, set up, update or troubleshoot your modems from almost anywhere. Each Courier includes a VersaPower Kit - a 110V to 240V power supply that includes clip-on plugs for other regions, in addition a clip-on power cord adapter that can be used to make it an inline power supply is available in all Courier accessory kits. When failure is not an option, you need the world-class capabilities that only come from the top of the USR product line.

AT A GLANCE

Form Factor External - Serial 

OS Compatibility  Windows, Linux

Regional Compatibility  Global

Class  Controller

Download Datasheet

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AVAILABILITY

AVAILABILITY

Product Code: USR3453C
US Availability: Discontinued, Recommended Replacement‡: USR5686G-PRO


BUY ACCESSORIES

INTERNATIONAL

Canada - Discontinued.
Recommended replacementUSR5686G-PRO 
Europe
Middle East
Asia Pacific
Latin America

Global Kits

 

For Export Control (ECCN & HTS) please Contact Us for the latest information.

 

CONTACT USR

 E-mail

  • FEATURES
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    FEATURES
  • SPECIFICATIONS
    SPECIFICATIONS
    SPECIFICATIONS
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    SPECIFICATIONS
  • BUY ACCESSORIES
    BUY ACCESSORIES
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    BUY ACCESSORIES
  • DOCUMENTATION
    DOCUMENTATION
    DOCUMENTATION
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    DOCUMENTATION
  • SUPPORT
    SUPPORT
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    SUPPORT
  • IMAGES
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FEATURES

INCREDIBLE COMPATIBILITY AND FLEXIBILITY

  • V.Everything® Technology provides support for all key communications protocols
  • V.Everywhere® Technology so that one, highly reliable hardware platform supports connections with most international phone systems
  • Synchronous/Asynchronous, and leased-line support
  • Supports all major operating systems: DOS, Windows including Server and 64 bit, UNIX, Linux — any operating system that supports an RS-232 serial port
  • VersaPower Kit (Universal power adapter) automatically handles global power variations from 100 V to 240 V and includes alternate plugs for use in other regions (N.A., Europe, the Middle East or Africa)

INTEGRATED MULTILAYERED SECURITY

  • Dial security:
     
    • Autopass works with up to 79 users, and automates logging in between two Couriers by including the password in the V.42 error-control request
    • Password Prompting, works with any type of modem, where the host Courier requests a password from those dialing in
  • Dialback security checks incoming calls for password authorization and then dials back predefined numbers to assure only appropriate users establish connections

ROCK-SOLID RELIABILITY

  • Carrier Loss Redial automatically senses, redials, and re-establishes dropped remote connections — creates a virtual leased-line connection between two modems, over regular dial-up lines
  • Advanced Line Probing technology finds the fastest connection and maintains connections under poor line conditions
  • Brown-out Protection assures you stay connected even in areas with poor power facilities
  • Robust, business-oriented design, component selection, testing, and experience to support non-stop operation

POWERFUL MANAGEMENT TOOLS

  • Remote Management lets you configure or troubleshoot from almost anywhere
  • Instant Update automatically checks the USRobotics web site for code updates when you're online and downloads new features at your convenience
  • Remote Flash capability lets you upgrade Courier modems at remote locations from a central site

SPECIFICATIONS & STANDARDS

SPECIFICATIONS & STANDARDS

  • ITU V.92/V.90 up to 56 Kbps downloads
  • Data: V.92, V.90, V.34, V.32bis, V.32, V.22bis, V.22, V.23, and V.21
  • ITU V.34 at 33.6 Kbps or 28.8 Kbps
  • V.32 at 19.2 Kbps (21.6 Kbps between Courier modems with ASL)
  • ITU V.32bis at 14.4 Kbps
  • HST at 16.8 Kbps
  • Compatible with most ITU and Bell standards down to 300 bps
  • Data Error Control; Compression: V.42/V.42bis and MNP2-4/5
  • Fax: ITU V.17 at 14.4 Kbps, ITU V.29 at 9600 bps, ITU V.27ter at 7200 bps, Group III, TIA/EIA 578 Class 1, and TIA/EIA 592 Class 2.0
  • Caller ID and distinctive ring (require service from your local phone company/Caller ID may not be supported in some countries)
  • Hayes Compatible

ENVIRONMENTAL

  • Temperature: Operating Temperature conditions: 0 to 50 degrees C, Non-Operating Temperature conditions: -20 to 70 degrees C
  • Humidity: Operating Humidity conditions: 20% to 80% non-condensing, Non-Operating Humidity conditions: 5% to 95% non-condensing

REGULATORY

  • FCC approved (Part 15/Part 68)
  • IC approved (ICES-003/CS-03)
  • UL/CUL listed
  • CE approved (Class B)
  • ROHS Compliant
  • REACH Compliant

PACKAGE DIMENSIONS/WEIGHT

  • 11.25 x 4.5 x 7.0 in. (28.58 x 11.43 x 17.78 cm)
  • 3.4 lb (1.54 kg)

PRODUCT DIMENSIONS/WEIGHT

  • 5.1 x 10.2 x 1.2 in. (13 x 26 x 3 cm)
  • 1.1 lb (0.5 kg)

MINIMUM HARDWARE REQUIREMENTS

  • Supports all major operating systems: DOS, Windows 3.1/95/98/Me/NT 4.0/2000/2003/2003 64 bit/XP/XP 64 bit/Vista/Vista 64 bit/Server 2008/Win 7/Win 7 64 bit/Win 8/Win 8 64 bit/Server 2011/Server 2012/Win 10/Win 10 64 bit/Server 2012 R2/Server 2016/Server 2019 (Unimodem TSP/TAPI compliant), UNIX, Linux, and any operating system that supports an RS-232 serial port
  • Available RS-232 serial port
  • 56K compatible local analog phone line

SOFTWARE MINUMUM REQUIREMENTS (ICN/INSTANT UPDATE)

  • IBM compatible PC with 486DX or Pentium processor or equivalent
  • Internet Call Notification (ICN) supports Windows 95/98/Me/2000/XP

TELCO/PTT REQUIREMENTS

  • V.90 requires a V.90 56K ITU standard capable service provider
  • V.92 requires a V.92 56K ITU standard capable service provider
  • V.92 Call Notification feature requires Call Waiting service from your local phone company
  • V.92 Call Identification feature requires Call Waiting/Caller ID services from your local phone company

PACKAGE CONTENTS

  •  USR Courier 56K Business Modem
  •  VersaPower Kit (Universal power adapter 100 V — 240 V) with UK, European, China and US plugs
  •  RJ-11 phone cord (10 ft/3.05 m)
  •  RS-232 serial cable (3 ft/0.91 m)
  •  Installation CD-ROM
    •  Quick Reference Card
    •  User Guide

WARRANTY

Lifetime limited manufacturer warranty. Click here for full warranty information.

DOCUMENTATION

IMAGES

ACCESSORIES

Courier Accessory Kits are not available for online purchase. Contact Kim Mason at 847.87.2370 or send us an email to inquire about purchasing.

Additional Power Supply

USR3453C-ACC VersaPower Kit (Universal power adapter) automatically handles global power variations from 100 V to 240 V and includes alternate plugs for use in other regions (N.A., Europe, the Middle East or Africa). Kits are available for additional regions.

Product Code: USR3453C-ACC
US Availability: Contact Us

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Global Accessory Kits

Visit the Global Country Approvals & Accessory Kit Guide to view current country approvals and appropriate accessory kits. The Courier Business Modem is approved for use in over 75 countries! Courier Accessory Kits are not available for online purchase. Contact Kim Mason at 847.87.2370 or send us an email to inquire about purchasing.

Accessory Kit Contents

013453a-acc.pngUSR013453A-ACC: UK phone adapter + UK power cord + Dongle + IEC C8 adaptor

MSRP: $23.49

043453a-acc.pngUSR043453A-ACC: UK phone adapter + Loopback + Dongle + Australian power cord + IEC C8 adaptor

MSRP: $23.49

053453a-acc.pngUSR053453A-ACC: Loopback + Korean power cord + IEC C8 adaptor + Argentina power clip + Brazil power cord

MSRP: $23.49

243453a-acc.pngUSR243453A-ACC: Germ,Ital,French phone adapter + Euro power cord + Loopback + Dongle + IEC C8 adaptor (USR563453A-ACC Alternative kit)

MSRP: $23.49

563453a-acc.pngUSR563453A-ACC: Loopback + Dongle + Euro power cord + IEC C8 adaptor

MSRP: $23.49

723453a-acc.pngUSR723453A-ACC: UK phone adapter + India/SouthAfrica power cord + IEC C8 adaptor

MSRP: $23.49

3453CIEC-ACC-hi.pngUSR3453CIEC-ACC: AC power cord C14 to C7 + IEC C8 adaptor

MSRP: $39.49

** Support for 64 bit operating systems requires a driver update (available in the support section of this website).
* Capable of receiving at up to 56 Kbps and sending at up to 48 Kbps (or 31.2 Kbps with V.90 server). Due to FCC regulations on power output, receiving speeds are limited to 53.3 Kbps. Actual speeds may vary. V.92 and V.90 features require compatible phone service and support from your Internet Service Provider (ISP). USRobotics modems featuring V.92 enhancements are backward compatible and will negotiate the highest possible speed when connecting to an ISP.
† Requires Windows operating system.
‡ Courier Lite (USR5686G-PRO) is the recommended replacement for Courier USR3453C, but features and specifications do vary. It is suggested to verify requirements before purchasing replacement units.