[Transmission power]:15W
[Communication distance]:30km
[Product size]:124*109.1*35.2mm
[Introduction]:E90-DTU(400SL42) is a real high-quality industrial-grade wireless data transmission radio. The radio adopts LORA spread spectrum technology. Its strong anti-interference ability makes wireless communication more stable and reliable in industrial sites. It has a variety of transmission methods, works in the (410.125~493.125MHz) frequency band (default 433.125MHz), and the radio station provides a transparent RS232/RS485 interface. LoRa direct-sequence spread spectrum technology will bring a longer communication distance and has the advantage of strong anti-interference ability. The module has a software FEC forward error correction algorithm, which has high coding efficiency and strong error correction ability, greatly improving reliability and transmission distance. The radio has the function of data encryption; it supports the setting of packet length, and supports different real-time and data packets.
PIN | Name | Function | illustration |
1 | GND | Negative pole of crimping power input | power reference ground |
2 | VCC | Pressure wire type power input positive pole | Power input (12V/4A) |
3 | MOD | mode control | floating, normal mode; grounded, configuration mode |
4 | RS485 G | RS485 interface G | RS485 interface G is connected to the device GND interface (recommended connection) |
5 | RS485 B | RS485 interface B | RS485 port B is connected to device B port |
6 | RS485 A | RS485 interface A | RS485 port A is connected to device A port |
7 | RS232 | RS232 interface | Standard RS232 interface |
8 | ANT | SMA-K interface | Male threaded inner hole, length 10mm, characteristic impedance 50Ω |
9 | UPDATE | - | Hidden buttons, users do not need to care |
10 | PWR | Power Indicator | Red, lights up when power is on |
11 | TXD | Serial port data sending indicator | Yellow, blinking when sending data |
12 | RXD | Serial port data receiving indicator light | Yellow, blinking when receiving data |
13 | ERR | warning light | The antenna is not connected or the voltage and temperature are abnormal. After the abnormality of the antenna is not connected, it needs to be powered on again to work normally. |