[Introduction]:E90-DTU (230SL42) is a truly high-quality industrial-grade wireless data transmission radio (the radio won the national design patent ZL202030009845.3). It adopts LORA spread spectrum technology and its strong anti-interference ability makes wireless communication more convenient in industrial sites. Stable and reliable. The radio has a variety of transmission methods and provides transparent RS232/RS485 interfaces. LoRa direct sequence spread spectrum technology will bring longer communication distance and has the advantage of strong anti-interference ability. It has data encryption function and FEC forward error correction algorithm, which greatly improves security, reliability and transmission distance.
| Model specifications | Working frequency Hz | Transmitting power W | Reference distance km | Specifications | Recommended application scenarios |
| E90-DTU(230SL42) | 230M | 15 | 30 | LoRa spread spectrum anti-interference | Suitable for environments with long distances and susceptible to interference |
| E90-DTU(400SL42) | 433.125M | 15 | 30 | LoRa spread spectrum anti-interference | Suitable for environments with long distances and susceptible to interference |
| Model specifications | Default frequency Hz | Frequency range Hz | Channel spacing Hz | Number of channels |
| E90-DTU(230SL42) | 230M | 225~236M | 0.25M | 45, half duplex |
| E90-DTU(400SL42) | 433.125M | 410.125~493.125M | 1M | 84, half duplex |
| Serial number | Project | Specification | illustrate |
| 1 | Product Size | 124*109.0*35.2mm | See installation dimensions for details |
| 2 | product weight | 425g | Weight tolerance 5g |
| 3 | Operating temperature | -40℃~+85℃ | Meet industrial grade use requirements |
| 4 | Antenna impedance | 50Ω | Standard 50Ω characteristic impedance |
| 5 | voltage range | 12±1V DC | It is recommended to support instantaneous current 4A |
| 6 | Communication Interface | RS232/RS485 | Standard DB9 female/5.08 terminal block |
| 7 | baud rate | Factory default 9600 | Baud rate range 1200~115200 |
| 8 | address code | Factory default 0 | Total 65536 address codes can be set |