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Ebyte free sample tcxo RS232/485 27dBm 230MHz narrow band transmission rf transceiver modem for IOT

[Frequency]:225~237.6MHz

[Power]:27dBm

[Distance]:5.0km

[Interface]:RS232/RS485

[Weight]:129±5g

[Introduction]:E90-DTU is a wireless data transceiver with the function of digital data processing,digital modulation and demodulation,FEC,balanced soft decision,etc.It provides transparent RS232/RS485 interface,different with the analog FM transceiver plus MODEM analog digital transceiver.

1
Pin No. Name Function Description
1 DB-9 femal socket RS-232 interface Standard RS-232 interface
2 3.81 connecting terminal RS-485, power interface Standard RS-485 and screwing interface
3 PWR-LED Power indicator Red when powered-on
4 TXD-LED Transmitting indicator Yellow, it flashes when transmitting data
5 RXD-LED Receiving indicator Yellow, it flashes when receiving data
6 DC power interface Power interface Straight hole, outer diameter: 5.5mm, inner diameter: 2.5mm
7 DIP switch DIP switch Working mode control
8 Antenna interface SMA-K External thread hole.L: 10mm. 50Ω resistance.