US Robotics Courier External 56K v.92 Global Dial-Up Business Modem

US Robotics Courier External 56K v.92 Global Dial-Up Business Modem

US Robotics Courier External 56K v.92 Global Dial-Up Business Modem

B&H # USR3453C MFR # USR3453C

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Product Highlights

  • Up to 56 Kbps Downloads
  • Caller ID and Distinctive Ring
  • Synchronous / Asynchronous Support
  • Leased-Line Support
  • DOS/Windows/UNIX/Linux Support
  • Carrier Loss Redial
  • Advanced Line Probing
  • Brown-Out Protection
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US Robotics USR3453C overview

  • 1Description

Designed for use with point-of-sale applications, the Courier External 56K v.92 Global Dial-Up Business Modem from US Robotics features broad OS compatibility as it comes compatible with DOS, Windows, UNIX, and Linux. This modem features V.Everywhere Technology making it compatible with most international phone systems while V.Everything Technology supports nearly all communications protocols. Included with this modem is a VersaPower Kit complete with alternate plugs for use in regions including N.A., Europe, and the Middle East or Africa.

Once configured this modem supports carrier loss redial to restore dropped connections, advanced line probing technology to find the fastest available connection, and brown-out protection. Once a connection is established, said connection is secured using dial security which includes autopass and password prompting as well as dialback security checks for incoming calls.

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


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
In the Box
US Robotics Courier External 56K v.92 Global Dial-Up Business Modem
  • VersaPower Kit (Universal power adapter 100 V - 240 V) with UK, European, China and US plugs
  • RJ-11 Phone Cord (10')
  • RS-232 Serial Cable (3')
  • Limited 1-Year Manufacturer Warranty
  • Table of Contents
    • 1Description

    US Robotics USR3453C specs

    Standards and Compliance 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
    Temperature & Humidity Operating Temperature: 32 to 122°F / 0 to 50°C
    Non-Operating Temperature: -4 to 158°F / -20 to 70°C
    Operating Humidity: 20 to 80% non-condensing
    Non-Operating Humidity: 5 to 95% non-condensing
    Regulation Compliance FCC approved (Part 15/Part 68)
    IC approved (ICES-003/CS-03)
    UL/CUL listed
    CE approved (Class B)
    ROHS Compliant
    REACH Compliant
    System Requirements 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 (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 Minimum 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
    Dimensions 5.1 x 10.2 x 1.2" / 13 x 26 x 3 cm
    Weight 1.1 lb / 0.5 kg
    Packaging Infoyrffryaa
    Package Weight 2.8 lb
    Box Dimensions (LxWxH) 11.417 x 7.087 x 4.488"

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