Home >Módem>Módem inalámbrico>Módem inalámbrico LoRa
E95M-DTU (400SL30-485) Espectro ensanchado LoRa, comando AT, actualización en línea del puerto serie, banda de frecuencia libre global de 433MHz, radio montada en riel de tamaño pequeño, potencia de transmisión 20~30dBm

[Tipo de interfaz]:RS485/RS232/TTL

[Frecuencia portadora]:410,125 ~ 493,125 MHz

[Potencia de transmisión]:30dBm

[Distancia de comunicación]:10 km

[Tamaño del producto]:80*28*28,5 m

[peso]:31.3±2g

[Introducción]:E95M-DTU (400SL30-xxx) es una radio de transmisión de datos inalámbrica que utiliza tecnología de modulación LoRa de grado militar. Tiene una variedad de métodos de transmisión y funciona en la banda de frecuencia (410,125 MHz ~ 493,125 MHz) (433,125 MHz por defecto). La radio proporciona una interfaz RS485/RS232/TTL transparente, adopta una carcasa de plástico, una estructura montada en riel y admite una entrada de voltaje de 8 ~ 28 V (CC) de ancho. La tecnología de espectro ensanchado LoRa brindará una distancia de comunicación más larga y tiene la ventaja de una fuerte capacidad antiinterferencia.

General specifications and parameters

No.ItemSpecificationsDescription
1product size80*28*27 mmSee installation size for details
2Product weight32 g
Weight tolerance of 2g
3working temperature-40°C 〜+85℃technical grade
4voltage range8〜28V (DC )12V or 24V
5communication interfaceRS485/RS232/TTLRS485, RS232, TTL three choose one, subject to the physical identification of the product
6Baud rateFactor}- default: 9600The Baud rate range is from 1200 to 115200
7address codeFactory default 0A total of 65,536 address codes can be set

Frequency range and channel number

ModelFrequencyTransmitting powerReference distanceSpecification
MHzdBmkm
E95M -DTU(400SLxx -XXX )433.125M410.125 〜493.125M1M84, Half duplex

★ Note: In the same area, use multiple sets of transmission stations to communicate one to one at the same time. It is suggested that the channel interval be set above 2 MHz.

Transmitting power level

Model22dBm/30dBm17dBm/27dBm13dBm / 24dBm10dBm/21dBm
E95M -DTU(400SLxx -XXX )Factory default

★ Note: The lower the transmission power is. the closer the transmission distance is, but the working current will not decrease in the same proportion, so it is recommended to use the maximum transmission power

Air rate rating

ModelDefault air rateEqual seriesAir rate grade
bpsk bps
E95M -DTU(400SLxx-xxx )2.4k62.4、4.8、9.6、19.2、38.4、62.5

★Note: The higher the air speed setting, the faster the transmission rate, and the closer the transmission distance; so if the rate meets the usage requirements, the lower the air speed, the better.

Current parameters

ModelEmission current mAWaiting current mA
12V24V12V24V
E95M -DTU(400SL 22-xxx)4526107
E95M -DTU(400SL 30-xxx)25012595

★ Note: It is recommended to retain more than 50% of the current margin when selecting the power supply,which is conducive to the long-term and stable operation of the radio station.

Length of receiving and receiving and the subcontracting method

tsCache sizeSubcontracting method
E95M -DTU(400SLxx -XXX )1000 BytesCan be sent by instruction subcontracting 32 / 64 / 128 / 240 bytes

★  pay attention to:

  1. If the single received data of the radio station is greater than the single package capacity, the excess data will be automatically allocated to the second transmission until the transmission is completed;

  2. Single single received data cannot be greater than the cache capacity