[Collection] : Switching quantity/digital quantity
[Interface] : RS485
[I/O channel] : 2-channel
[Size] : 105*79*25mm
[Feature] : This chapter is a quick introduction to the E830-DTU (2R2-433L) series. It is recommended that the user system read this chapter and follow the instructions. It will have a systematic understanding of the module products, and users can also select the chapters you are interested in to read. For specific details and instructions, please refer to the following sections.
| RF Parameter | Index | Remark |
| Factory default frequency | 426MHz | - |
| TX power | 30 dBm | Max. Power (1W) |
| Hardware Parameter | Index | Remark |
Size (H*W*D) | 124*105*25 mm | |
Weight | 132±2 g | |
Operation temperature | -40℃ -+70℃ | |
Storage temperature | -40℃ -+85℃ | |
Operation humidity | 5% ~ 95% | |
Storage humidity | 1% ~ 95% | |
Operation voltage | 8V ~ 28V | |
Relay output | 5A 30VDC / 5A 250VAC | |
Data interface | RS485:9600bps | |
| Software parameters | Index |
| Operation mode | Following TX, Following RX, Controlling &Collecting, Configuration |
| Configuration command | Modbus RTU |
| Pin No. | Pin Item | Function | Description |
| 1 | DI1 | Switch signal input channel 1 | Switch value collecting channel 1, Optocouplerisolation |
| 2 | COM1 | Switch signal input channel 1 | The common end of input channel 1, connected to themodule ground internally |
| 3 | DI2+ | Switch signal input channel 2 | Switch value collecting channel 2, Optocouplerisolation |
| 4 | COM2 | Switch signal input channel 2 | The common end of input channel 1, connected to themodule ground internally |
| 5 | RESET | Reset button | In collecting mode, the Modbus address can be reset tothe default address 01 by long-pressing 5S |
| 6 | 485_A | RS_485 A | RS_485 A connects with device A connector, only for configuration |
| 7 | 485_B | RS_485 B | RS_485 B c0nnects with device B connector, only for configuration |
| 8 | GND | Wire pressing power input negative | Power GND |
| 9 | VCC | Wire pressing power input positive | Power input, DC 8V~28V, 12V/24V recommended |
| 10 | PWR/ACK | Power/ACK indicator | Dual-color indicator, blue represents power,green represents ACK. |
| 11 | D1 | TX/RX indicator | Dual-color indicator, when DI1 has an inputsignal, the blue light is on; when relay 1 is active, the green light is on. |
| 12 | D2 | TX/RX indicator | Dual-color indicator, when DI1 has an inputsignal, the blue light is on; when relay 1 is active, the green light is on. |
| 13 | ANT | Antenna connector | 433MHz antenna |
| 14 | M1 | Dial switch 1 | Mode selection |
| 15 | M0 | Dial switch 0 | Mode selection |
| 16 | COM2 | Switch signal output channel 2 | The common end of input channel 2- |
| 17 | NO2 | Switch signal output channel 2 | Relay 2 output open |
| 18 | COM1- | Switch signal output channel 1 | The common end of input channel 1 |
| 19 | NO1+ | Switch signal output channel 1 | Relay 1 output open |
| Order online |
| 【eBay】：https://www.ebay.com/usr/cdebyte |
| 【Aliexpress】：https://www.aliexpress.com/store/2798183 |
| 【Alibaba】：https://www.alibaba.com |
| For batch order/customized product |
| 【Sales hotline】：+86-28-61399028 Ext.812 |
| 【E-mail】：service@cdebyte.com |
| Technical support |
| 【Submit online】：http://www.ebyte.com/en/apple-technology.aspx |
| 【E-mail】：support@cdebyte.com |
| Model | Interface | Collection | I/O channel | Package | Size (mm) | Feature | Manual | Sample | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| E830-DTU(2R2-433L) | Switching quantity/digital quantity | SX1278 | 433M | 30 | 8 | Autoadaptation | Screwing | 105*79*25 | 2-channel,Modbus RTU | ||
| E830-DIO(ETH-2A) | Ethernet | Switch | 2-channel | Screwing | 82*84*25 | Modbus RTU |
