New Product

Embedded Wi-Fi/Bluetooth adapter

Embedded Bluetooth V4.2 Module

USB 3.0 to Gigabit LAN

Universal Communication EVK

Wireless Sensor (BLE or Wi-Fi)

AIO Network Hub (USB/Wi-Fi/LAN)


PSTN, Dial-Up Modems

By Interfaces -

- Serial TTL, Internal

- RS232, Internal, 12/24/48V

- RS232, Standalone

- USB, Internal

- USB, Standalone

- PC/104

- ISA Bus


By Applications -

- Medical Modems

- Contact ID Modems

- Leased-Line Modems

- Bell 202 Compatible

- Speakerphone Modems


Wireless Modems

Wi-Fi Modems -




Bluetooth Modems

3G Cellular Modems

2.4GHz Transceiver


LAN Products

Serial to Ethernet Modules

USB to Ethernet Adapters

LAN/Wi-Fi/USB/Serial Converter

LAN to Serial/Modem Adapter


PC/104 Products

PC/104 Modem

PC/104 3G Cellular

PC/104 Wi-Fi

PC/104 LAN


Custom Specifications

Build-to-Suit, Wired or Wireless


V92MM4-TW - Leased-Line & Dial-Up Connections


-40C to +85C Operating Temperature

56K bps Data, Fax, Voice

ITU-T V.23 Support, Bell 202 Compatible

Asynchronous and Synchronous Data Format Support

Full-duplex Speakerphone

This high-performance modem modules is fully self-contained with on-board data pumps and modem controllers.  The modem features include -40C to +85C extended temperature operation, 2-wire leased-line or dial-up support and speakerphone functionality with microphone input.  The V92MM4-TW supports ITU-T V.23 and is Bell 202 Compatible.  It operates under synchronous and asynchronous data formats and is built to meet most major country telecom requirements.


  • Serial TTL interface

  • V.92, 56 kbps data receiving

  • 14.4 kbps fax, Group 3, Class 1

  • DTMF recognition and decoding

  • -40C to +85C extended operating temperature

  • Low profile, 2.16 (W) x 3.65 (D) x 0.375" (H)

  • V.42, MNP 2-4 and 10-EC error correction

  • V.42bis and MNP-5 data compression

  • 2-wire leased-line and dial-up support

  • Supports Synchronous and Asynchronous data formats

  • Voice playback and record with microphone input

  • Full-duplex speakerphone functionality

  • Caller ID support, call waiting

  • ITU-T V.23 support, Bell 202 compatible

  • FCC68, CS-03 (Industrial Canada) and CTR21 (EU) certified.

Countries supported by existing firmware:
Australia, Austria, Belgium, Brazil, Canada, China, Denmark, Finland, France, Germany, Hong Kong, India, Ireland, Italy, Japan, Korea, Malaysia, Mexico, Netherlands, Norway, Poland, Portugal, Singapore, South Africa, Spain, Sweden, Switzerland, Taiwan, UK, US and TBR21 Generic.


  1. More country codes are available, please contact Radicom for information.

  2. More country Telecom Agencies such as Iceland, Luxembourg, Israel may adopt the TBR21 standards. The existing firmware could then be used to support those countries.

Ratings @ 25o C






Tip / Ring Current Continuous 10 20 60 mA
Dielectric Withstanding Voltage     1500 VRMS
Operating Temperature -40   +85 C
Relative Humidity (non-condensing) 10   95 %
Voltage Requirement: 5V system 4.75   5.25 VDC
       - Current Consumption - Normal   157   mA
       - Low Power Sleep Mode
  26   mA
Transmit & Receive Level -10 -20 -43 dBm

Mechanical Diagram & Pin Assignments - Serial Interface


  1. Header extends on non-component side. Can be reversed if necessary (contact factory)

  2. Header length is 0.236" on non-component side

  3. Pin spacing is 0.100" from center to center

  4. Tip and ring trace clearance must exceed 0.050" metal to metal

  5. 0.350" H on component side (0.20" optional)

  6. Suggested mating female connectors:

    Through Hole:

    a. Samtec P/N. #SSW-110-01-G-D (RoHS)


    a. Samtec P/N. #SSW-110-22-G-D-VS (RoHS)


Information furnished by Radicom Research is believed to be accurate and reliable.  However Radicom Research assumes no responsibility for its use, or any infringement of patents or other rights of third parties which may result from its use.  Radicom Research reserves the right to change circuitry at any time without notice.  This document is subject to change without notice.

The information contained herein is subject to change without notice. Logos, trademarks and copyrights are property of their respective owners.

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