home > product> solutions > industrial wireless communication> Wireless Modem > RFU-400/RFU-433

home > product> solutions > industrial wireless communication> Wireless Modem > RFU-400/RFU-433

RFU-400/RFU-433
429 MHz RS-232/RS-485 Wireless Modem

~ NEW ~	~ NEW ~

Model: RFU-400	Model: RFU-433

429/433 MHz Radio Frequency
16 RF Channels
4 RF Baud Rates
Includes a PA switch that can be used to enhance the RF power
Wireless line of sight (LOS) transmission range of up to 1000 meters at an RF Baud Rate of 9600 bps
Transparent transmission mode
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

The RFU-400 is an RS-232/RS-485 to 429 MHz radio modem that can be used to convert data from an RS-232/RS-485 device to an RF message that can then be transmitted in transparent mode via the 429 MHz ISM frequency band. The RFU-400 provides a maximum line of sight (LOS) transmission distance of 1000 meters (1 km) at an RF Baud Rate of 9600 bps. In order to overcome the interference that may be encountered in harsh environments, the RFU-400 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-400 networks are adjacent. The 16 RF channels and 8 Group IDs can be configured in order to distinguish and control the different RFU-400 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-400 modem needs to be replaced.

Models	RFU-400	RFU-433
RF Interface
Radio Frequency	429.1750 ~ 429.9250 MHz 433.1000 ~ 434.6000 MHz	433.1000 ~ 434.6000 MHz
Baud Rate	115200 bps ~ 650 bps	57600 bps ~ 650 bps
Transmission Power	Max 19 dBm	Default 10 dBm, Max 19 dBm
Antenna	0 dBi Omni directional
Transmission Distance (LoS)	1000 m (at 9600 bps RF Rate and 19 dBm Tx Power)	500 m (at 9600 bps RF Rate and 10 dBm Tx Power)
Group ID	0 ~ 7
Protocols	Transparent transmit
Temporary Buffer Size	512 Bytes
Configuration	Rotary and DIP switch
Repeater Mode	Support 1 hop
COM Port Interface
RS-232	TxD, RxD and GND
RS-485	D+, D- ; 3000 VDC for DC-to-DC
Baud Rate (bps)	1200 ~ 115200
Data Format	N81, E81, O81
LED Indicators
RF_Tx	Green
RF_Rx	Yellow
PWR	Red
Isolation
Intra-module Isolation	2500 Vrms for photocoupler (RS-485/RS-232 side)
EMS Protection
ESD	+/- 4 kV Contact
EFT	+/- 1 kV
Surge	+/- 1 kV
Power
Input Voltage Range	+10 VDC ~ +30 VDC
Power Consumption	1 W (Max.)
Mechanical
Flammability	Fire Retardant Materials
Dimensions (W x L x H)	108 mm x 84 mm x 33 mm ( not include antenna )
Antenna Dimensions (L x Ø)	108 mm x 10 mm
Installation	DIN-Rail
Environment
Operating Temperature	-25 °C ~ +75 °C
Storage Temperature	-30 °C ~ +80 °C
Relative Humidity	10 ~ 90% RH, Non-condensing

RFU-400 CR * Asia Only	RS-232/RS-485 to 429 MHz Radio Modem (RoHS)
RFU-433 CR	RS-232/RS-485 to 433 MHz Radio Modem (RoHS)

ANT-104-01	0 dBi 400 MHz External Antenna (for RFU-400)
ANT-104-02	0 dBi 400 MHz External Antenna (for RFU-433)
3S001-2	RG58A/U 1 Meter Long SMA male to SMA Female (for RFU-400)
3S001-1	RG58A/U 1 Meter Long RP-SMA male to RP-SMA Female (for RFU-433)

|