Tiny 2.4 GHz RF Wireless Modem with 1-port RS-232/RS-485/RS-422


Tiny 2.4 GHz RF Wireless Modem with 1-port RS-232/RS-485/RS-422

  Price:  $369.00  


  • ISM 2.4 GHz Operating Frequency
  • Direct Sequence Spread Spectrum (DSSS) RF technology
  • RS-232/RS-485/RS-422 Interface Supported
  • Half-duplex communication up to 115200 bps
  • Full-duplex communication up to 57600 bps
  • Fully External Switch for the Hardware Configuration
  • Surge and ESD Protection
  • DIN-Rail Mountable



The tRFU-2400 is a 2.4 GHz radio frequency modem that provides RS-232, RS-485 and RS-422 port interfaces. The tRFU-2400 is designed to act as a wireless bridge to convert signals between serial and wireless formats, and is great for applications when the physical wire deployment is inconvenient. The tRFU-2400 makes it easy to build a low-cost data acquisition and control application between a host and a range of remote sensors via wireless communication.The tRFU-2400 is a spread spectrum radio frequency (RF) modem based on the IEEE 802.15.4 standard. The IEEE 802.15.4 standard is operating on the ISM bands which uses a transmission frequency range between 2405 and 2480 MHz. A total of 16 channels are available and each with a channel separation of 5 MHz. Two operating modes are also supported, including Peer-to-Peer (P2P) mode, which allows full-duplex communication, and Broadcast mode, which allows half-duplex functionality in multi-point communication.

Reference & Support


LED Indicators
Status 1 x RF_Tx / RF_Rx
1 x Power State
Antenna 3 dBi Omni directional
Channels 16
Modulation OQPSK (Offset Quadrature Phase-shift Keying)
RX Sensitivity -97 dBm
Spread Spectrum DSSS (Direct-Sequence Spread Spectrum)
Transmission Power 11 dBm (Default)
17 dBm (Max.)
Transmission Range 180 m (Typical)
COM Ports
Ports 1 x RS-232(TxD, RxD and GND)
1 x RS-485(DATA+, DATA-; Internal ASIC Self-tuner; Non-isolated)
1 x RS-422(TxD+, TxD-, RxD+, RxD)
Baud Rate Full-duplex: 2400 to 57600 bps
Half-duplex: 2400 to 115200 bps
Data Format N81, O81, E81, N82
Consumption 0.4 W (Max.)
Casing Plastic
Dimensions (mm) 95 x 52 x 27 (W x L x H)( not include antenna )
Installation DIN-Rail
Operating Temperature -25 ~ +75°C
Storage Temperature -40 ~ +80°C
Humidity 0 ~ 90% RH, Non-condensing

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