[Frequency] : 220.125~236.125MHz
[Power] : 22dBm
[Distance] : 5km
[Interface] : RS232/RS485
[Weight] : 128±5g
[Introduction] : E90-DTU (230SL22) is a data transceiver with military-grade LoRa modulation technology. With multiple transmission modes, it works in the (220.125~236.125MHz) frequency band (Default 230.125MHz). The transceiver provides transparent RS232/RS485 interface and supports 8~. 28V voltage input.
| RF Parameter | Value | Remark |
| Working frequency | 220.125~236.125 MHz | Default: 230.125MHz |
| Transmitting power | 22 dBm | About 160mW |
| Air data rate | 0.3k~15.6kbps | Default: 2.4kbps |
| Test distance | 5000 meter | - |
| Hardware Parameter | Value | Remark |
| Size | 82 * 62 * 25 mm | Without SMA-K |
| Antenna type | SMA-K | - |
| Communication interface | RS232 / RS485 | Standard DB9 Hole / 3.81 connecting terminal |
| Channel numbers | 65 | Half duplex |
| Buffer | 1000 bytes | Can be sub-packed to 32/64/128/240 byte each time via command |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
| Power supply | 8 | 12 | 28 | V | It is recommended to use 12V or 24V |
| Transmitting current | - | 46 | - | mA | 22dBm（160mW） |
| Stand-by current | - | 11 | - | 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. |
| 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 |
