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RFU-433 User Manual

433 MHz RS-232/RS-485 Wireless Modem

Dec. 2018, Version 1.00

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Summary of Contents for RFU-433

Page 1: ...RFU 433 User Manual 433 MHz RS 232 RS 485 Wireless Modem Dec 2018 Version 1 00 ...

Page 2: ...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 identifi...

Page 3: ...er 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 ...

Page 4: ...ay 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 Grou...

Page 5: ...7600 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 R...

Page 6: ... 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...

Page 7: ...d 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 ...

Page 8: ...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 ...

Page 9: ...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 ...

Page 10: ...R 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 ...

Page 11: ...t these settings are show as below COM Baud Rate Switch Name Number Baud Rate bps COM Rate 0 115200 1 57600 2 38400 3 19200 4 9600 5 4800 6 2400 7 1200 8 E Reserved RF Baud Rate Switch Name Number Baud Rate bps RF Baud Rate 0 Auto set the same with COM Baud Rate 1 57600 2 38400 3 19200 4 9600 5 4800 6 2400 7 1200 8 650 9 E Reserved F Firmware version If COM Baud Rate is 115200 bps the RF Baud Rate...

Page 12: ...ireless Modem User Manual Version 1 00 Copyright 2018 ICP DAS Co Ltd All Rights Reserved Page 12 Group ID Switch Name Switch Group ID Number Group ID 0 1 2 3 4 5 6 7 RFU 433 with different Group ID cannot communicate with each other ...

Page 13: ...ceived a message 0x01 0x02 0x03 0x04 then the repeater will transmitted the same message to RF At the same time the repeater will add two RSSI data byte below the message such as 0x01 0x02 0x03 0x04 0x63 0x75 and output to COM The RSSI 0x63 is the message source side RSSI and the RSSI 0x75 is the repeater itself Note the RSSI value is from 0x00 to 0xFF and 0xFF is the best Setting Switch Switch Na...

Page 14: ... Software Setting For Hardware Setting the Channel is 433 5000 MHz the Output Power is 10 dBm and the Message Duty is enable Channel For RFU 433 RF channel is 433 1000 MHz 434 6000 MHz Output Power The RF output power is from 0x00 0x7F Default is 10 dBm and 0x7F is max 19 dBm Message Duty Message duty means the minimum time interval for RF message The next time interval is 10 times the current RF ...

Page 15: ...Version 1 00 Copyright 2018 ICP DAS Co Ltd All Rights Reserved Page 15 4 Application Example 1 1 Transfer PC controls RS 485 modules 1 3 through RFU 433 1 Multi Transfer PC controls RS 485 modules 1 3 through a RFU 433 and modules 4 6 through another RFU 433 ...

Page 16: ...Rights Reserved Page 16 Repeater Mode PC cannot monitor the thermometer and hygrometer directly because the distance is too far But the repeater can bypass the RF message one side to another and let PC can monitor the thermometer and hygrometer RSSI Test User can use repeater mode to check the RSSI value ...

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