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E90-DTU(2G4HD12) DTU RS485 RS232 Full duplex high speed wireless transceiver FEC 2.4G wireless modem iot
[Introduction]：E90-DTU (2G4HD12) is a high-quality industrial-grade wireless data transmission radio station. Its high-level port protection capability can be used in industrial situations with complex electromagnetic environments. Compared with ordinary digital transmission radio.
| No. | Name | Function | Notes |
|---|---|---|---|
| 1 | DB-9 female socket | RS-232 interface | Standard RS-232 interface |
| 2 | 3.81 terminal block | RS-485, power interface | Standard RS-485 interface and pressure line power interface |
| 3 | PWR-LED | Power Indicator | Red, lights up when the power is on |
| 4 | LINK-LED | Data transceiver indicator | Yellow, the connection is successful |
| 5 | DATA-LED | Serial data indicator | Yellow, flashing during data transmission |
| 6 | DC power interface | Power connector | Push-in round hole, outer diameter 5.5mm, inner diameter 2.5mm |
| 7 | DIP switch | Mode selection | Configuration mode: M1=UP, M0=any;Transparent transmission mode: M1=Down, M0=Any |
| 8 | Antenna interface | SMA-K interface | External thread inner hole, length 10mm, characteristic impedance50Ω |