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E90-DTU(400SL30P) high-quality industrial-grade wireless digital radio Lora wirelss modem electrostatic discharge anti-interference
[Introduction]：E90-DTU (400SL30P) is a true high-quality industrial-grade wireless digital radio. The power supply supports electrostatic discharge anti-interference level 4 protection,fast transient anti-interference level 4 protection,surge impact anti-interference Level 3 Protection.
| Pin NO. | Definition | Function | Description |
|---|---|---|---|
| 1 | RS-232 | RS-232 interface | Standard RS-232 interface |
| 2 | RS485 A | RS485 interface A | The RS-485 interfaceA is connected to the device interfaceA |
| 3 | RS485 B | RS485 interface B | The RS-485 interface B is connected to the device interface B |
| 4 | DC-IN - | Crimping power input negative | Power reference ground |
| 5 | DC-IN + | Crimping power input positive | Power input |
| 6 | DC-IN stand | DC socket 5.5*2.1mm | Power input |
| 7 | PWR-LED | Power Indicator | Red, lit when the power is on |
| 8 | TX/RX-LED | Data sending and receiving indicator | Green, blinking when sending data.Blue, blinking when receiving data |
| 9 | MODE-LED | Status Indicator | Cyan light on: transparent transmission mode Blue light on: WOR send mode；Green light on: Wor receive mode |
| 10 | Ground screw | Connect with the earth | Connect with the earth |
| 11 | Antenna interface | SMA-K interface | external thread, 10mm, 50Ωcharacteristic impedance |