Low cost Ebyte Industrial IoT Plug-in 915MHz RF module long range wireless transmitter and receiver module
[Frequency]：850~930MHz
[Power]：20dBm
[Distance]：2.5km
[Antenna interface]：SMA
[Size]：36*21mm
[Introduction]：E49-900T20D is a super cost-effective wireless data transmission module launched by Chengdu Ebyte. It has 4 working modes. Each transmission method has its own characteristics and can be applied to various application scenarios. E49-900T20D can perfectly support industrial-grade applications, and has undergone rigorous testing at the factory to ensure its industrial reliability and batch consistency.
| Working parameters | Min. | Typ. | Max. | Remark |
|---|---|---|---|---|
| Working voltage (V) | 2.6 | 5 | 5.5 | - |
| Communication level (V) | - | 3.3 | - | Risk of burnout with 5V TTL |
| Working temperature (℃) | -40 | - | 85 | Industrial grade design |
| Working frequency band (MHz) | 850 | 868 | 930 | support ISM band |
| Emission current (mA) | - | 90 | - | Instantaneous power consumption |
| Receive current (mA) | - | 12 | - | - |
| Sleep current (μA) | - | 0.7 | - | software shutdown |
| Maximum transmit power (dBm) | - | - | 20.0 | - |
| Receive Sensitivity (dBm) | -114 | -115 | -116 | The air rate is 1.2kbps |
| Air rate (bps) | 1.2k | 2.4k | 200k | User programming control |
| Main parameters | Description | Remark |
|---|---|---|
| Reference distance | 2.5km | Clear and open environment, antenna gain 5dBi, antenna height 2.5m, air rate 1.2kbps |
| Subcontracting method | 54 Btye | The maximum capacity of a single package, it will be automatically sub-packaged when it exceeds. |
| Cache capacity | 500 Btye | - |
| Modulation method | GFSK | - |
| Communication Interface | UART serial port | - |
| Packaging method | Plug-in | - |
| Crystal frequency | 26MHz | - |
| Dimensions | 36*21mm | - |
| Antenna interface | SMA connector | Equivalent impedance is about 50 ohms |