* New Mailing Address *
671 E. Brokaw Road
San Jose CA 95112
(After August 23rd 2018)



New Product

Smart Phone/LAN FAX adapter

PCIe / PCIe (M2) Wi-Fi Module

Embedded Wi-Fi to Serial module
    temperature range -40 to +105°C

Embedded Wi-Fi AP/router adapter

USB 3.0 to Gigabit LAN

Wireless Sensor (BLE or Wi-Fi)

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


PSTN, Dial-Up Modems

By Interfaces -

- PCIe Wi-Fi

- PCIe (M2) Wi-Fi

- 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


Embedded Bluetooth® Modules for OEM's
Point-to-Point, Cable Replacement





Radicom Research’s RB4000 and RB4000HM Bluetooth modules are designed to meet OEM’s needs of embedding short-range wireless data connectivity to their products.
  The RB4000 family offers a quick and simple solution for wireless point-to-point communications.

The RB4000 series are Class 2 Bluetooth modules using BlueCore4-External Chipset from CSR, the leader in Bluetooth chipsets.  These embedded modules are Bluetooth V.2.0 + EDR (Enhanced Data Rate) compliant that increase throughput, reduce battery consumption and improve security.  It provides faster pairing and allows superior performance in the presence of interference from 802.11 (Wi-Fi) wireless devices and other 2.4GHz radios.

The RB4000 series has 8Mbits flash memory on board.  OEM specific parameters and settings can be easily loaded into these modules.  It provides an efficient method of adding a Bluetooth data link to most embedded applications.

There are two models available, RB4000 and RB4000HM. The RB4000 is a surface mount PCB module with on-board antenna.  Continuing the popular Radicom “HM” footprint of 1” x 1”, the RB4000HM is a through-hole module.

The RB4000 SPP-B available with storable AT Commands to control options and configure via remote access.


  • Bluetooth V.2.0+EDR support (optional 2.1+EDR)
  • Small sizes: 0.57” x 1.26” x 0.12” (RB4000)
  • Class 2 radio, 4dBm transmission power
  • Link data rate - 2.1 Mbps maximum
  • Serial Port Profile (SPP) support
  • Secure simple pairing support
  • Sustained SPP data rates: 115.2Kbps
  • GAP, SDP, L2CAP and RFCOMM embedded stack profiles support
  • 8Mbits flash memory on board
  • Secure communications with 128-bit encryption  
  • Onboard antenna (RB4000)
  • Support 802.11 wireless co-existence
  • FCC, IC, CE certified


0.57”x1.26”x0.12” (RB4000), 1”x1.26”x0.2” (RB4000HM)

Device Type

Embedded Bluetooth OEM module


Serial TTL

Data Link Protocol

Bluetooth 2.0+EDR (optional 2.1+EDR)


2.402 – 2.480 GHz

Max Transmit Power


Receive Sensitivity


Bluetooth Class

Class 2+EDR

Link Data Transfer Rate

2.1Mbps Max

UART Data Transfer Rate

115.2K bps


Up to 20 meters (60 feet, basic rate, line of sight)

On-board Antenna Gain


On Board Flash


Compliant Standards

Bluetooth 1.1, 1.2, 2.0 and 2.1 (optional)

Security 128-bit encryption

Power Consumption

<40mA during ACL Link

Supply Voltage

2.2V to 4.2V (RB4000) or 3.15V to 3.45V (RB4000HM)


On-board antenna

Baseband Crystal OSC


RF Input Impedance

50 ohms

Receiver IF Frequency 1.5MHz
Receiving Signal Range -80 to –20dBm typical

Operating Temperature

-40ºC to +85ºC

Storage Temperature

-40ºC to +85ºC


RoHS compliant

Agency Approval FCC, IC, CE certified

Ordering Information

Model Number


0.57" x 1.26" x 0.12" surface mount, short range Bluetooth module with on-board antenna

Available as either SPP-A Initiator and SPP-B Acceptor

Model: RB4000-A for SPP-A Code
Model: RB4000-B for SPP-B Code


1.0" x 1.26" x 0.2" dual-in-line, through-hole module with on-board PCB antenna

Model: RB4000HM-A for SPP-A Code
Model: RB4000HM-B for SPP-B Code


RDB1000 is a Carrier board with Bluetooth Module installed, USB Type B receptacle for power, and DB9 connector

Model: RDB1000-A for SPP-A Code
Model: RDB1000-B for SPP-B Code

RB4000 Kit

Development Kit for the RB4000 Bluetooth Module Family.  Each kit consists of the following components:

  1. 2 ~ RDB1000 Carrier Boards one with RB4000HM-A(SPP-A) and other with RB4000HM-B(SPP-B) installed
  2. 2~ 6 feet USB Power cables (A to B)
  3. 2 ~ Null modem cables (DB9F to DB9F)


  • Cable Replacement

  • Medical Devices

  • Barcode Readers

  • M2M Communication

  • Barcode Scanners

  • Measurement & Monitoring Systems

Mechanical Diagram & Pin Assignments - RB4000


Mechanical Diagram & Pin Assignments - RB4000HM



  1. Pin spacing is 0.100 inch from center to center.

  2. Suggested mating female connector:

             Samtec P/N. #SSW-110-21-G-S (RoHS Thru-Hole)

             Samtec P/N. #SSW-110-22-G-S-VS (RoHS SMT)

  3. Square pins - 0.025" x 0.025"


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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