ICPDAS RFU-433 Manuale utente
RFU-433 User Manual
433 MHz RS-232/RS-485 Wireless Modem
Dec. 2018, Version 1.00
RFU-433 (433 MHz RS-232/RS-485 Wireless Modem) User Manual, Version 1.00
Copyright © 2018 ICP DAS Co., Ltd.All Rights Reserved. Page：2
Warrany
All products manufactured by ICP DAS are warranted against defective
materials for a period of one year from the date of delivery to the original
purchaser.
Warning
ICP DAS assumes no liability for damages consequent to the use of this
product. ICP DAS reserves the right to change this manual at any time
without notice. The information furnished by ICP DAS is believed to be
accurate and reliable. However, no responsibility is assumed by ICP DAS
for its use, nor for any infringements of patents or other rights of third
parties resulting from its use.
Copyright
Copyright © 2017 by ICP DAS. All rights are reserved.
Trademarks
Names are used for identification purposes only and may be registered
trademarks of their respective companies.
Contact Us
If you have any questions, please feel free to contact us via email at:
service@icpdas.com
RFU-433 (433 MHz RS-232/RS-485 Wireless Modem) User Manual, Version 1.00
Copyright © 2018 ICP DAS Co., Ltd.All Rights Reserved. Page：3
Table of Contents
1. Introduction .....................................................................................4
1.1 Features........................................................................................5
1.2 Specification..................................................................................6
1.3 Dimensions ...................................................................................8
1.4 Appearance...................................................................................9
2. Configuration.................................................................................11
3. RFU-433 Utility...............................................................................14
4. Application Example.....................................................................15
RFU-433 (433 MHz RS-232/RS-485 Wireless Modem) User Manual, Version 1.00
Copyright © 2018 ICP DAS Co., Ltd.All Rights Reserved. Page：4
1. Introduction
The RFU-433 is an RS-232/RS-485 to 433 MHz radio modem that can
be used to convert data from an RS-232/RS-485 device to RF message
and transmitted in transparent mode via the 433 MHz ISM frequency
band.
The RFU-433 provides a maximum line of sight (LOS) transmission
distance of 500 meters at an RF Baud Rate of 9600 bps. In order to
overcome the interference that may be encountered in harsh
environments, the RFU-433 allows the RF transmission Baud Rate to be
configured to a minimum of 650 bps, enhancing the capability of the
modem to resist noise and other interference. Additionally, the RF
channels and Group IDs are adjustable, which is helpful when attempting
to avoid interference encountered when two RFU-433 networks are
adjacent. The 16 RF channels and 8 Group IDs can be configured in order
to distinguish and control the different RFU-433 networks. The majority of
these configuration parameters can be adjusted using a combination of
the Rotary and DIP switches, thereby providing a simple method of
maintaining the system if the RFU-433 modem needs to be replaced.
RFU-433 (433 MHz RS-232/RS-485 Wireless Modem) User Manual, Version 1.00
Copyright © 2018 ICP DAS Co., Ltd.All Rights Reserved. Page：5
1.1 Features
433 MHz Radio Frequency
16 RF channels with 100 kHz channel spacing
Provides RF Baud Rates from 650 to 57600 bps
RF output power default 10 dBm, maximum 19 dBm
Wireless line of sight (LOS) transmission range of up to 1000 meters
at an RF Baud Rate of 9600 bps
Transparent transmission mode
Message package is up to 512 bytes
Provides Baud Rates from 1200 to 115200 bps for both the RS-232
and RS-485 interfaces
ESD Protection: Contact +/-4 kV
Isolation: 3000 VDC for DC-to-DC, 2500 Vrms using a photocoupler
DIN-Rail Mountable
Operating Temperatures, -25°C ~ +75°C
RFU-433 (433 MHz RS-232/RS-485 Wireless Modem) User Manual, Version 1.00
Copyright © 2018 ICP DAS Co., Ltd.All Rights Reserved. Page：6
1.2 Specification
RF Interface
Radio Frequency
433.1 MHz ~ 434.6 MHz
Channels
0 ~ 15 (default is 4, configured by utility)
Baud Rate
650 ~ 57600 bps
Transmission Power
Default 10 dBm, Max 19 dBm
Antenna
0 dBi Omni directional, RPSMA
Transmission Distance (LoS)
1000 m (at 9600 bps RF Data Rate )
Group ID
0 ~ 7
Protocols
Transparent transmit
Repeater
Support repeater mode
Temporary Buffer Size
512 Bytes
COM Port Interface
RS-232
TxD, RxD and GND
RS-485
D+, D- ; 3000 VDC for DC-to-DC
Baud Rate (bps)
1200 ~ 115200 bps
Data Format
N,8,1 / O,8,1 / E,8,1
LED Indicators
RF_Tx
Green (RF Transmit)
RF_Rx
Yellow (RF Receive)
PWR
Red (Power)
Isolation
Intra-module Isolation
2500 Vrms for photocoupler (COM Port)
EMS Protection
ESD
+/- 4 kV Contact
EFT
+/- 1 kV
Surge
+/- 1 kV
Power
RFU-433 (433 MHz RS-232/RS-485 Wireless Modem) User Manual, Version 1.00
Copyright © 2018 ICP DAS Co., Ltd.All Rights Reserved. Page：7
Input Voltage Range
+10 VDC ~ +30 VDC
Power Consumption
1 W @ 24 VDC
Mechanical
Dimensions (W x L x H)
( not include antenna )
108 mm x 84 mm x 33 mm
Antenna Dimensions (L x Ø)
108 mm x 10 mm
Installation
DIN-Rail
Environment
Operating Temperature
-25℃~ +75℃
Storage Temperature
-30℃~ +80℃
Relative Humidity
10 to 90% RH (Non-condensing)
RFU-433 (433 MHz RS-232/RS-485 Wireless Modem) User Manual, Version 1.00
Copyright © 2018 ICP DAS Co., Ltd.All Rights Reserved. Page：8
1.3 Dimensions
RFU-433 (433 MHz RS-232/RS-485 Wireless Modem) User Manual, Version 1.00
Copyright © 2018 ICP DAS Co., Ltd.All Rights Reserved. Page：9
1.4 Appearance
RFU-433 (433 MHz RS-232/RS-485 Wireless Modem) User Manual, Version 1.00
Copyright © 2018 ICP DAS Co., Ltd.All Rights Reserved. Page：10
Terminal Block
LED Indicator
LED
Behavior
Description
PWR
On
+10 ~ +30 VDC Power On
Off
Power Off
RF_Tx
On
RF is transmitting data
Off
RF is no data to transmit
RF_Rx
Always On
RF is receiving data, signal strength high
100ms Flash
RF is receiving data, signal strength middle
500ms Flash
RF is receiving data, signal strength low
Off
RF is no data to receive
Pin
Description
RxD
RS-232
TxD
GND
F.G.
Frame Ground
D-
RS-485
D+
GND
Power:
+10 ~ +30 VDC, 1A
+Vs
Indice
Altri manuali ICPDAS Modem
