Dual-mode Bluetooth serial port adapter
Highlights
• Bluetooth v4.0 with Bluetooth low energy and
Classic Bluetooth (Bluetooth Smart Ready)
• Embedded dual-mode Bluetooth stack (SPP, DUN, PAN, GATT)
• u-blox Low Energy Serial Port Service
• GATT support for Bluetooth Smart
• Wireless Multidrop™ with 7 slaves
• IP65-classed rugged housing
RBS421:
76 x 85 x 35 mm
Product description
The RBS421 is a rugged dual-mode Bluetooth (Bluetooth Smart
Ready) serial port adapter. The serial port adapter has embedded
Classic Bluetooth stack (SPP, DUN and PAN profiles), Bluetooth
low energy stack with u-blox Low Energy Serial Port Service, serial
RS232/422/485 interface, and support for seven slaves connected
at the same time. With its IP65-classed housing, it is built for
tough and demanding environments, indoor or outdoor.
The RBS421 has implemented the u-blox Low Emission Mode®
feature to make sure that Classic Bluetooth operates smoothly
in parallel with other wireless technologies. Further features
implemented include Wireless Multidrop™ with simultaneous
connections to both Bluetooth low energy and Classic Bluetooth
devices and Extended Data Mode™ for separated multipoint
data channels so that different data can be sent to or received
from each slave.
The RBS421 dual-mode Bluetooth serial port adapter is easily
configured via AT commands and comes with an external an-
tenna. The high receiver sensitivity and output power enables a
range of up to 300 meters whereby the robust RBS421 provides
a plug-and-play solution to replace conventional serial cables.
The adapter is fully Bluetooth qualified and provides radio type
approvals for the US, Europe, Japan and Canada (FCC, R&TTE,
MIC, IC). The RBS421 is also compliant with EMC, Safety and
Medical standards.
The operating temperature range is –30°C to +85°C.
UBX-14005590 - R01
Production Information
SHORT RANGE
RBS421
Features
Bluetooth
Range
Output power
v4.0 (Bluetooth low energy and
Classic Bluetooth)
300 m
13 dBm
Package
Dimensions
Weight
Mounting
Housing
76 x 85 x 35 mm
190 g
Mounting holes
Metal, IP65
Software features
Embedded software
u-blox Bluetooth stack
Serial port application
Bluetooth profiles & services
u-blox Low Energy Serial Port Service
Generic Attribute Profile (GATT)
Serial Port Profile (SPP)
Dial-up networking Profile (DUN GW,
DUN DT)
Personal Area Networking Profile (PAN)
roles: PANU & NAP
Profile roles
Central Role, Peripheral Role
3 Classic Bluetooth & Bluetooth low energy
Configuration tools
Low Emission Mode
®
Environmental data, quality & reliability
Operating temperature –30°C to +85°C
Certifications and approvals
Type approvals
Europe (ETSI R&TTE)
US (FCC/CFR 47 part 15 unlicensed
modular transmitter approval)
Canada (IC RSS)
Japan (MIC - formerly TELEC)
R&TTE Directive 1999/5/EC
Effective use of frequency spectrum:
EN 300 328
EMC: EN 301 489-1, EN 301 489-17,
EN 61000-6-2
Health and safety: EN 62479,
EN 60950-1, IEC 60950-1
Medical Electrical Equipment
IEC 60601-1-2
Bluetooth Qualification v4.0
Max. number of slaves 7 Classic Bluetooth only
AT commands via Bluetooth or serial port
Prevent disrupting other 2.4GHz radios
Possible with simultaneous connections to
Bluetooth low energy and Classic
Bluetooth devices.
Wireless Multidrop™
Extended Data Mode™ Separated multipoint data channels
Quality of Service (QoS)
Repeater functionality
Security
Android connectivity
Extended range
Simple Pairing
SPP/PAN Classic Bluetooth and Bluetooth
low energy connections with Android
devices (Android 4.3 and higher)
Supports Bluetooth low energy connections
with iOS devices
Support products
cB−RBS421s−03-A
RBS421 complete kit which includes
cB-RBS421s-03-0 unit (including
mounting brackets and 10 cm stub
antenna), RS-232 cable, Binder 712
connector
iOS connectivity
Electrical data
RF power supply
Power consumption
8 to 30 VDC
9 mA @30V (min.)
20 mA @30V (average Tx)
Ordering information
cB−RBS421s−03-0
RBS421 with external antenna, 10 cm
antenna and mounting brackets
Interfaces
RS232
RS422 / 485
Baud rate
Flow control
460.8 kbit/s (max.)
Support for non-standard baud rates
CTS/RTS or none
Male 9-pin Dsub for serial interface
Binder 712 rugged plug for power supply
Legal Notice
u-blox reserves all rights to this document and the information contained herein. Products, names, logos
and designs described herein may in whole or in part be subject to intellectual property rights. Reproduc-
tion, use, modification or disclosure to third parties of this document or any part thereof without the
express permission of u-blox is strictly prohibited.
The information contained herein is provided “as is”. No warranty of any kind, either express or implied, is
made in relation to the accuracy, reliability, fitness for a particular purpose or content of this document. This
document may be revised by u-blox at any time. For most recent documents, please visit www.u-blox.com.
Copyright © 2014, u-blox AG
Contact us
For contact information, see
www.u-blox.com/contact-us.
UBX-14005590 - R01
Production Information
www.u-blox.com