RFU-433-RU400 (433 MHz RS-232/RS-485 Wireless Modem) User Manual, Version 1.00
Copyright © 2019 ICP DAS Co., Ltd. All Rights Reserved. Page
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6
1.2 Specification
RF Interface
Radio Frequency
433.1 MHz ~ 434.6 MHz
Baud Rate
650 ~ 57600 bps
Transmission Power
Default 10 dBm, Max 19 dBm
Antenna
0 dBi Omni directional, RPSMA
Transmission Distance (LoS) 399 m (Max.)
Group ID
0 ~ 7
Protocols
Transparent transmit
Temporary Buffer Size
512 Bytes
Configuration
Rotary and DIP switch
Repeater
Support 1 hub
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
