[Frequency] : 410~441MHz
[Power] : 37dBm
[Distance] : 20km
[Interface] : RS232/RS485
[Weight] : 240±5g
[Introduction] : E90-DTU is a wireless data transceiver with the function of digital data processing,digital modulation and demodulation,FEC,balanced soft decision,etc.It provides transparent RS232/RS485 interface,different with the analog FM transceiver plus MODEM analog digital transceiver.
| RF Parameter | Value | Remark |
| Working frequency | 410~441 MHz | Default: 433MHz |
| Transmitting power | 37 dBm | About 5W |
| Air data rate | 0.3k~19.2kbps | Default: 2.4kbps |
| Test distance | 20000 meter | In open and clear air, with maximum power, 5dBi antenna gain, height of 2m. |
| Hardware Parameter | Value | Remark |
| Size | 102 * 105 * 25 mm | Without interface |
| Antenna type | SMA-K | |
| Communication interface | RS232 / RS485 | Standard DB9 Hole/3.81 connecting terminal |
| Baud rate | 9600 | Baud rate: 1200~115200 |
| Buffer | 512 bytes buffer | Automatically sub-packaging with 197 bytes per package |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
| Power supply | 10 | 12 | 28 | V | |
| Transmitting current | 1024 | 1138 | 1252 | mA | 37dBm（5W） |
| Stand-by current | 45 | 50 | 55 | mA | |
| Operating temperature | -40 | 20 | +85 | ℃ | |
| Operating humidity | 10 | 60 | 90 | % | |
| Storage temperature | -40 | 20 | +125 | ℃ |
| Pin No. | Name | Function | Description |
| 1 | DB-9 femal socket | RS-232 interface | Standard RS-232 interface |
| 2 | 3.81 connecting terminal | RS-485, power interface | Standard RS-485 and screwing interface |
| 3 | PWR-LED | Power indicator | Red when powered-on |
| 4 | TXD-LED | Transmitting indicator | Yellow, it flashes when transmitting data |
| 5 | RXD-LED | Receiving indicator | Yellow, it flashes when receiving data |
| 6 | DC power interface | Power interface | Straight hole, outer diameter: 5.5mm, inner diameter: 2.5mm |
| 7 | DIP switch | DIP switch | Working mode control |
| 8 | Antenna interface | SMA-K | External thread hole.L: 10mm. 50Ω resistance. |
| 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 | IC | Frequency Hz | Power dBm | Distance km | Air data rate | Package | Size (mm) | Feature | Manual | Sample |
|---|---|---|---|---|---|---|---|---|---|---|---|
| E90-DTU(2G4HD12) | RS232 RS485 | - | 2.4G | 12 | 0.8 | 1200～3M | Screwing/DB9 | 82*62*25 | Point-to-point frequency hopping, two-way continuous transmission | ||
| E90-DTU(2G4L27) | RS232/RS485 | - | 2.4G | 27 | 7 | - | Standard DB9 hole type/3.81 terminal block | 82*62*25 | Adopt a new generation of LoRa spread spectrum technology | ||
| E90-DTU(400SL44) | RS232 RS485 | SX1268 | 433M | 44 | 40 | 0.3k~62.5k | Screwing/DB9 | 160*137*44 | LoRa,anti-interference | ||
| E90-DTU(400SL22P) | RS232/RS485 | SX1268 | 433M | 22 | 5 | 0.3k~62.5k | Screwing/DB9 | 108*75*37 | New generation LoRa | ||
| E90-DTU(400SL30P) | RS232 RS485 | SX1268 | 433M | 30 | 10 | 0.3k~62.5k | Screwing/DB9 | 108*75*37 | LoRa spread spectrum | ||
| E90-DTU(400SL30-ETH) | Ethernet | SX1268 | 433M | 30 | 10 | 0.3k~62.5k | RJ45 | 82*84*25 | LoRa spread spectrum,ethernet | ||
| E90-DTU(400SL22-GPRS) | RF to GPRS | GPRS | 410.125~493.125MHz | 22 | 5 | - | Screwing/DB9 | 108*75*37 | LoRa spread spectrum,ethernet | ||
| E90-DTU(400SL22-ETH) | Ethernet | SX1268 | 433M | 22 | 5 | 0.3k~62.5k | RJ45 | 82*84*25 | LoRa spread spectrum,ethernet | ||
| E90-DTU(230SL30-ETH) | Ethernet | SX1262 | 230M | 30 | 10 | 0.3k~15.6k | RJ45 | 82*84*25 | LoRa spread spectrum,ethernet | ||
| E90-DTU(230SL22-GPRS) | RF to GPRS | GPRS | 220.125~236.125MHz | - | - | - | Screwing/DB9 | 108*75*37 | LoRa Spread spectrum | ||
| E90-DTU(230SL22-ETH) | Ethernet | SX1262 | 230M | 22 | 5 | 0.3k~15.6k | RJ45 | 82*84*25 | LoRa Spread spectrum | ||
| E90-DTU(900SL22-GPRS) | RF to GPRS | GPRS | - | - | - | - | Screwing/DB9 | 108*75*37 | LoRa Spread spectrum | ||
| E90-DTU(900SL22-4G) | RF to 4G | 4G | 850.125MHz~930.125MHz | - | - | - | Screwing/DB9 | 108*75*37 | LoRa Spread spectrum | ||
| E90-DTU(900SL22-ETH) | Ethernet | SX1262 | 868M 915M | 22 | 5 | 0.3k~62.5k | RJ45 | 84mm*82mm*25 | LoRa spread spectrum,ethernet | ||
| E90-DTU(900SL30-ETH) | Ethernet | SX1262 | 868M 915M | 30 | 10 | 0.3k~62.5k | RJ45 | 82*84*25 | LoRa spread spectrum,ethernet | ||
| E90-DTU(230SL30-GPRS) | RF to GPRS | SX1262 | 230M | 30 | 10 | 0.3k~15.6k | Screwing/DB9 | 108*75*37 | LoRa spread spectrum | ||
| E90-DTU(400SL30-GPRS) | RF to GPRS | SX1268 | 433M | 30 | 10 | 0.3k~62.5k | Screwing/DB9 | 108*75*37 | LoRa spread spectrum | ||
| E90-DTU(900SL30-GPRS) | RF to GPRS | SX1262 | 868M 915M | 30 | 10 | 0.3k~62.5k | Screwing/DB9 | 108*75*37 | LoRa spread spectrum | ||
| E90-DTU(433C17) | 232/485 | - | 433M | 17 | 1 | 1.2k~70k | Screwing/DB9 | 82*62*25 | Continuous transmission | ||
| E90-DTU(433C33) | 232/485 | - | 433M | 33 | 4 | 1.2k~70k | Screwing/DB9 | 82*62*25 | Continuous transmission | ||
| E90-DTU(230SL37) | 232/485 | SX1262 | 230M | 37 | 20 | 0.3k~15.6k | Screwing/DB9 | 124*105*25 | LoRa spread spectrum | ||
| E90-DTU(400SL37) | 232/485 | SX1268 | 433M | 37 | 20 | 0.3k~62.5k | Screwing/DB9 | 124*105*25 | LoRa spread spectrum | ||
| E90-DTU(900SL30) | 232/485 | SX1262 | 868M | 30 | 10 | 0.3k~62.5k | Screwing/DB9 | 82*62*25 | LoRa spread spectrum | ||
| E90-DTU(900SL22) | 232/485 | SX1262 | 868M | 22 | 5 | 0.3k~62.5k | Screwing/DB9 | 82*62*25 | LoRa spread spectrum | ||
| E90-DTU(230SL30) | 232/485 | SX1262 | 230M | 30 | 10 | 0.3k~15.6k | Screwing/DB9 | 82*62*25 | LoRa spread spectrum | ||
| E90-DTU(230SL22) | 232/485 | SX1262 | 230M | 22 | 5 | 0.3k~15.6k | Screwing/DB9 | 82*62*25 | LoRa spread spectrum | ||
| E90-DTU(400SL30) | 232/485 | SX1268 | 433M | 30 | 10 | 0.3k~62.5k | Screwing/DB9 | 82*62*25 | LoRa spread spectrum | ||
| E90-DTU(400SL22) | 232/485 | SX1268 | 433M | 22 | 5 | 0.3k~62.5k | Screwing/DB9 | 82*62*25 | LoRa spread spectrum | ||
| E90-DTU(433C30) | 232/485 | - | 433M | 30 | 3 | 1.2k~70k | Screwing/DB9 | 82*62*25 | Continuous transmission | ||
| E90-DTU(433C37) | 232/485 | - | 433M | 37 | 10 | 1.2k~70k | Screwing/DB9 | 124*105*25 | Continuous transmission | ||
| E90-DTU(433L30) | 232/485 | SX1278 | 433M | 30 | 8 | 1.2k~70k | Screwing/DB9 | 82*62*25 | LoRa spread spectrum | ||
| E90-DTU(433L37) | 232/485 | SX1278 | 433M | 37 | 20 | 1.2k~70k | Screwing/DB9 | 124*105*25 | LoRa spread spectrum | ||
| E90-DTU(170L30) | 232/485 | SX1278 | 170M | 33 | 8 | 1.2k~70k | Screwing/DB9 | 82*62*25 | LoRa spread spectrum | ||
| E90-DTU(230N27) | 232/485 | AX5243 | 230M | 27 | 5 | 1.2k~70k | Screwing/DB9 | 82*62*25 | Narrow-band | ||
| E90-DTU(433L30E) | Ethernet | SX1278 | 433M | 30 | 8 | 0.3k~19.2k | RJ45 | 66*66*21 | LoRa spread spectrum | ||
| E90-DTU(433C30E) | Ethernet | - | 433M | 30 | 3 | 0.3k~19.2k | RJ45 | 66*66*21 | ModBus Continuous transmission | ||
| E90-DTU(230N33) | 232/485 | AX5243 | 230M | 33 | 8 | 1.2k~70k | Screwing/DB9 | 82*62*25 | Narrow-band | ||
| E90-DTU(230N37) | 232/485 | AX5243 | 230M | 37 | 15 | 1.2k~70k | Screwing/DB9 | 124*105*25 | Narrow-band |
