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E34-DTU(2G4H27) 2.4G wireless data transmission radio
[Introduction]：Ebyte's 2.4G wireless data transmission radio has RS232/RS485 interface, automatic frequency hopping and anti-interference, and automatic retransmission of packet loss, which is suitable for point-to-point applications with large data volumes.
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| PIN Number | Name | Function | illustration |
| 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 press-line power interface |
| 3 | PWR-LED | Power indicator light | Red, lights up when power is on |
| 4 | TXD-LED | Send indicator light | Yellow, flashing when sending data |
| 5 | RXD-LED | Receive indicator light | Yellow, flashes when receiving data |
| 6 | DC power interface | Power interface | Direct insertion round hole, outer diameter 5.5mm, inner diameter 2.5mm |
| 7 | DIP switch | DIP switch | Working mode control |
| 8 | Antenna interface | SMA-K interface | External thread inner hole, length 10mm, characteristic impedance 50Ω |