E61-DTU(433C33) High-speed wireless transceiver with both RS232 & RS485
[Frequency]：425~450.5MHz
[Power]：33dBm
[Distance]：4.0km
[Interface]：RS232/RS485
[Introduction]：E61-DTU-433C33 is a high-speed wireless transceiver with both RS232 & RS485 interfaces working at 425 ~ 450.5MHz. It supports continuous data transmission with limitless data packet length.
| Pin No. | Name | Function | Description |
|---|---|---|---|
| 1 | DB-9 female connector | RS-232 connector | Standard RS-232 connector |
| 2 | 3.81 wiring connector | RS-485, power connector | Standard RS-485 connector and line-pressing power source connector |
| 3 | PWR-LED | Power source indicator | Red, light on when power on |
| 4 | TXD-LED | TX indicator | Yellow, flicker when transmitting data |
| 5 | RXD-LED | RX indicator | Yellow, flicker when receiving data |
| 6 | DC power connector | Power source connector | Drop-in round hole, 5.5mm external diameter, 2.5mm internal diameter |
| 7 | Toggle switch | Toggle switch | Operation mode control |
| 8 | Antenna interface | SMA-K connector | External screw and inner hole, 10mm long, 50Ω characteristic impedance |