[Transmitting power]：22dBm
[Communication distance]：2.5km
[Product size]：102*28*28.5mm
[Product weight]：32±2g
[Introduction]：EWD95M-400NW22(485) is a wireless serial port LoRa MESH networking module based on LoRa spread spectrum technology, with a maximum output power of 22dBm, a maximum air rate of 62.5K, and a maximum supported baud rate of 460800bps. The micro-rail DTU module has an operating frequency range of 410.125~509.125MHz (default 433.125MHz). The digital radio uses the new LoRa MESH networking technology, with features such as decentralization, self-routing, network self-healing, and multi-level routing. It is suitable for smart homes and industrial sensors, wireless alarm security systems, building automation solutions, smart agriculture and other application scenarios.
| Main parameters | performance | Remark | |
| Minimum | Maximum | ||
| Supply voltage | 0V | 28V | Over 28V may burn the module |
| Operating temperature | -40℃ | +85℃ | Industrial-grade design |
| Operating humidity | 10% | 90% | - |
| Storage temperature | -40℃ | +125℃ | - |
| Main parameters | performance | Remark | |||
| Minimum | Typical Value | Maximum | |||
| Working voltage(V) | 5 | 12 | 28 | Over 28V may burn the module | |
| Working temperature(℃) | -40 | one | 85 | Industrial-grade design | |
| Operating frequency band(MHz) | 410.125 | 433.125 | 509.125 | EWD95I-400NW22(xxx) working frequency band, supports ISM band | |
| Power consumption | Emission current (mA) | 57 | DC 12V power supply, instantaneous power consumption | ||
| Receive current (mA) | 8.2 | ||||
| Transmit power(dBm) | -9 | 2 | 22 | User configurable | |
| Air rate (bps) | 7K | 62.5K | 62.5K | Three air speed options (62.5K, 21.875K, 7K) | |
| Receiving sensitivity(dBm) | -121 | -116 | -111 | The sensitivity corresponding to the three air speeds | |
| Main parameters | describe | Remark |
| Reference distance | 2.5 Km | Clear and open environment, antenna gain 3.5dBi, antenna height 2.5 meters, air rate 7Kbps |
| 2.0 Km | Clear and open environment, antenna gain 3.5dBi, antenna height 2.5 meters, air rate 21.875Kbps | |
| 1.6 Km | Clear and open environment, antenna gain 3.5dBi, antenna height 2.5 meters, air rate 62.5Kbps | |
| Subcontracting | 200 Btye | Maximum capacity of a single package. It is forbidden to exceed the maximum capacity. |
| Modulation | LoRa | - |
| EWD95M-xxxNW22(485) communication interface | RS485 | - |
| EWD95M-xxxNW22(232) communication interface | RS232 | - |
| Hardware Interface | Spring-loaded terminal blocks | 4Pin 3.81mm |
| Dimensions | 102*28*28.5mm | (L*W*H),±0.2mm |
| Antenna interface | High School | External thread inner hole, characteristic impedance about 50Ω |
| weight | 32g | ±2g |
