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MU-2-R0 pages
Embedded low power radio modem
MU-2-R
434 MHz
The MU-2-R is an embedded radio modem operated in the 434 MHz ISM band. Dedicated commands, specially designed for wireless
application, are provided for building a range of wireless systems, from simple control systems to wide network systems. Using the
commands, the user can concentrate on designing the application without needing to be aware of the radio protocol and control aspects.
Reed-Solomon code is used for forward error correction (FEC) to maintain data integrity and provide highly reliable wireless
communication.
Features
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UART interface with simple command control
Narrow band FM for reliable long range communication
434 MHz ISM band Pre-programmed 127 channels
1 mW / 10 mW power selectable
Error correction with Reed-Solomon code
Repeater and auto answer back function
Low power operation 42 mA at 3 V
Robust metal housing for industrial use
R&TTE (EN 300 220) / RoHS compliance
Applications
・ Telemetry - Environment monitoring, Meter reading,
Various measuring applications
・ Telecontrol - Remote control for industrial equipment
・ Security - Various alarm and monitoring systems
General
Parameter
Specification
Standard
EN300220
RF output power
10 mW / 1 mW selectable
Oscillation system
PLL synthesizer system
Radio communication speed
4800 bps
Frequency range
433.2000 to 434.7750 MHz
Channel spacing
25 kHz
Number of channels
127
Channel step 12.5 kHz
Receiver sensitivity
-110 dBm
Packet error rate 0.1%*1
-113 dBm with error correction
Packet error rate 0.1%*1
Remark
Output (50 ohm)
Operating temperature
-20 to + 65
Operating voltage
3.0 to 5.0 V
Absolute max. rate 5.5 V
Consumption current
TX: 42 mA RX: 22 mA @ 3V
10 mW RF out
TX: 26 mA RX: 22 mA @ 3V
1 mW RF out
External dimensions
36 x 26 x 8 mm
Not including antenna
Weight
14.5 g
Modulation
BFSK
*1 (255 byte / 1 packet)
Reference data
* Effective radio communication speed: About 3,400 bps (Conditions: One-way communication, no error correction, 25°C)
* Range: About 600 m (Conditions: One-way, no error correction, 25°C, line of sight distance, antenna height of 1.5 m, vertical antenna)
Serial interface
Parameter
Specification
Communication method
Serial communication (RS232C format)
Synchronization
Asynchronous / UART
Data speed
1200 / 2400 / 4800 / 9600 / 38400 / 57600 bps
Flow control
RTS / CTS hardware flow control
Parameter
Data length: 8 bit / Parity: (No, Odd, Even) / Stop bit: 1 or 2
Specifications are subject to change without prior notice
www.circuitdesign.jp
MU-2-R 434MHz ver1.1 Oct. 2012
Sales Division
7557-1 Hotaka, Azumino, Nagano 399-8303, Japan
Tel:+81-(0)263-82-1024
Fax:+81-(0)263-82-1016
