MU-D1-R0 pages

Embedded low power radio modem

MU-D1-R

915 MHz

The MU-D1-R is a Direct Sequence Spread Spectrum transceiver that operates in the 900 MHz ISM band under FCC Part 15. Dedicated
commands, specially designed for wireless application, are provided for building a range of wireless systems, from simple control systems to
wide network systems. For receiving, a true diversity system is employed to achieve stable and reliable communication.

Features
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UART interface with simple command control
True diversity receiver
Direct Sequence Spread Spectrum
PN code length of 15
BPSK modulation/demodulation
MU-2 interface compatible
Power selectable 40 mW / 8 mW
Robust metal housing for industrial use
FCC Part 15.247 compliant

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

FCC Part 15.247

RF output power

40 mW / 8 mW

Selectable by the command

Radio communication speed

600 kbps

40 kbps x 15 chips

Frequency range

902.5 to 927.50 MHz

Number of channels

20

Operating temperature

-20 to + 65

Operating voltage

4.0 to 5.5 V

Consumption current

TX: 130 mA RX: 58 mA @ 5V

40 mW RF out

TX: 55 mA RX: 58 mA @ 5V

8 mW RF out

External dimensions

36 x 26 x 8 mm

Not including antenna

Weight

13 g

Modulation

BPSK

Remark

Reference data
* Range: About 300 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

19200 / 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-D1-R 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