MU-1-R0 pages

Embedded low power radio modem

MU-1-R

434 MHz

The embedded low power radio modem MU-1-R is a radio modem for transmission of serial data. Using a simple system of commands, the
user can concentrate on designing the transmitting and receiving protocols for the data using the commands, without needing to be aware
of the radio component control. By using a UART interface for transmitting and receiving data and for issuing commands, it is possible for
the user to develop systems quickly.
The MU-1-R meets the requirements of the European R&TTE Directive and carries the CE mark.

Features
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Narrow band FM for reliable long range communication
Pre-programmed 64 channel / 25 kHz step
Simple dedicated command control
Wide operating temperature range -20 to + 60 degree C
Robust metal housing for industrial use
Various interface board options R&TTE (EN 300 220) / RoHS compliance

Applications
・ Serial data transmission radio modem
・ Industrial Telecontrol
Remote control for machines and motors
・ Industrial Telemetry / Monitoring
Monitors for water level, environmental data and gauges

General

Parameter

Specification

Remark

Standard

R&TTE Directive EN1999/5/EC

CE mark acquired

Antenna power

10 mW

Contact (50 ohm)

Oscillation system

PLL synthesizer system

Radio communication speed

9600 bps

Frequency range

433.200 to 434.775MHz

Number of channels

64

Channel step 25 kHz

Receiver sensitivity

-108 dBm

Packet error rate 0.1%*1

Operating temperature

-20 to + 60 degree C

Operating voltage

3.0 to 5.0 V

Absolute max. rate 5.5V

Consumption current

TX: 46mA RX: 32mA

at 3V

External dimensions

50 x 30 x 9 mm

Not including antenna

Unit weight

23.5 g
*1 (255 byte / 1 packet)

Reference data

* Effective radio communication speed: About 6,800 bps / Conditions: One-way communication, no error correction, 25 degree C
* Range: About 600 m / Conditions: One-way communication, no error correction, 25 degree C, line of sight distance,
ground level of 1.5 m, vertical antenna
* 12 db/SINAD receive sensitivity: -119 dBm / Conditions: Measured at the AF-MON terminal, 1 kHz Dev = +/-2.0k CCITT filter

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 control

Parameter

Data length: 8 bit / Parity: No / Stop bit: 1
Specifications are subject to change without prior notice

www.circuitdesign.jp

MU-1-R 434MHz ver1.0 Oct. 2012

Sales Division

7557-1 Hotaka, Azumino, Nagano 399-8303, Japan
Tel:+81-(0)263-82-1024
Fax:+81-(0)263-82-1016