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V.92 Embedded Serial Modem

Powerful, secure dial-up connections for your business

Powerful, secure dial-up connections for your business

The USRobotics 56K* Embedded Serial Modem combines the superior performance and reliability of a controller-based modem with the convenience of a compact and flexible design to make a any system ready for communications. V.22, V.29 Fast Connect, and secure connectivity make this modem ideal for Point of Sale (POS) systems, Machine to Machine (M2M) applications, and Remote Server Management applications including Out-of-Band remote diagnostics, troubleshooting, maintenance and server back-ups. This embedded modem provides OEMs easy integrated data and fax with a design that works in a wide range of environments and platforms - saving development time and money.



Data & fax features and functionality

  • 56K (V.92 and V.90), 33.6K (V.34), and 2400 bps (V.22bis) Data Rate compatibility
  • 33.6K (V.34), 14.4K (V.17) Fax Rate compatibility
  • V.44 & V.42bis Data Compression
  • V.42 Error Correction and Selective Reject
  • V.80 Synchronous Access
  • SDLC/HDLC for POS applications
  • DTE Asynchronous serial rates up to 230 Kbps
  • Caller ID and Distinctive Ring
  • Line status detection

Advanced features and functionality

  • Permanently store preferred modem default settings
  • 4 different power save modes

Get the speed you need

  • Fast Connect (V.22 & V.29) allows either 1200 or 9600 bps connections without error control in less than 1 second§, making this modem ideal for POS and ATM transactions that require lightning fast connections.
  • Quick Connect* (V.92) reduces the time it takes to establish your dial-up Internet connection.
  • V.92* lets you send attachments up to 50% faster.
  • Controller based data/fax modem does all the processing internally.

Complete Modem Solution

  • Designed for any system including Linux and Windows based M2M, POS, and Remote Server Management systems as well as custom systems.
  • Complete solution including controller, data pump and DAA
  • Supplied in custom unit bulk packs
  • Compact design ideal for embedded systems


Specifications & Standards


  • V.92, V.90, V.34, V.32bis, V.32, V.22bis, V.23, V.21, Bell 103, and Bell 212A
  • V.42/MNP 2-4 error correction, V.44 & V.42 bis/MNP 5 compression, V.42 Selective Reject
  • V.80 Synchronous Data Interface
  • Voice: V.253, V.250, Telephone Answering Machine (TAM)
  • Fax: V.17, V29, V.27ter, V.21; T.31 (Class 1)
  • SDLC/HDLC for point-of-sale applications
  • Type 1/2 Caller ID and distinctive ring


  • DTE Interface: RS232/20 Pin Header
  • Phone Line Interface: Mini RJ connector


  • Temperature: Operating Temperature conditions: 0 to 60 degrees C, Non-Operating Temperature conditions: -20 to 70 degrees C
  • Humidity: Operating Humidity conditions: 10% to 90% non-condensing, Non-Operating Humidity conditions: 5% to 95% non-condensing

Electrical Characteristics

PIN NumberPIN NameDirection LevelTolerance
20VCCNA3.3VMin 3.0V Max 3.6V
4TXDHost -> Modem3.3V5V tolerant
5DCDModem -> Host3.3V
6DTRHost -> Modem3.3V5V tolerant
7RIModem -> Host3.3V
8RTSHost -> Modem3.3V5V tolerant
9RXDModem -> Host3.3V
10CTSModem -> Host3.3V
11DSRModem -> Host3.3V


  • FCC approved (Part 15 Class B/Part 68)
  • CE approved (Class B)

Power Consumption

  • Typical: ≈310mW active, ≈450mW max

Package Dimensions

  • 8.27 x 5.83 x 1.77 in (210 x 148 x 45 mm)

Product Dimensions/Weight

  • 2.71 x 1.02 x .39 in (69 x 26 x 10 mm)
  • .02 lb (9.07 g)

Minimum System Requirements

  • Asynchronous Serial Interface
  • Analog Phone Line

Power Supply Requirements
  • Voltage: 3.3 0.3V
  • Maximum supply current: 135 mA

Package Contents

  • 16 USRobotics V.92 Embedded Serial Modems per box

Warranty Information

2-year limited manufacturer warranty from date of purchase. Click here for full warranty information.

Support & Documentation

Support Page

Thumbnail Title Size Type
Data Sheet 1,881.72 KBPDF



* 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.
† Advanced fax functionality may require installation of bundled software.
§ Time measured from start of modem tones, amount of time may be slightly longer with error control enabled.
‡ Caller ID and distinctive ring require service from your local phone company. Caller ID may not be supported in some countries