[Interface type]：RS485/network port
[Transmitting power]：20dBm
[Communication distance]：1km
[Size]：66*68*21.6mm
[Introduction]：EWD611-900NW20(485) is a long-distance image transmission + data transmission radio developed by Ebit. With a transmission rate of 16Mbps, it can realize 4-channel 1080p video transmission, and can also achieve transparent transmission of network port + serial port at the same time.The shell adopts three-proof coating, which is Anti-Fungal, Anti-Humidity, and Anti-Salt Spray. It works in the 850MHz~930MHz frequency band, and the maximum RF transmission power is 20dBm. The digital radio uses universal AT commands, which is simple and fast to operate. It can be widely used in smart wearables, home automation and other fields.
Official Store
| Pin number | name | Function | Remark |
| 1 | 3.81mm terminal block | Serial interface, power interface | Standard RS-485 interface and crimped power interface |
| 2 | ETH | Ethernet interface | Standard RJ45 interface, 100M |
| 3 | PWR-LED | Power indicator light | Red, always on when power is on |
| 4 | LINK-LED | Link indicator | a) Off: The network cable is not connected or not connected to the server; |
| b) Flashing: flashing when the network cable is connected; | |||
| c) Always on: The network link is connected successfully; | |||
| 5 | RSSI1-LED | Signal strength indicator | - |
| 6 | RSSI2-LED | Signal strength indicator | - |
| 7 | RSSI3-LED | Signal strength indicator | - |
| 8 | Pair button | pairing control | Master and slave pairing button |
| 9 | Antenna interface | SMA-K interface | External thread inner hole, length 10mm, characteristic impedance 50Ω |
| 10 | mode switch | tactile switch | Master-slave mode switch |
| Foot number | Standard definition | Function | illustrate |
| 1 | VCC | Crimped power interface, positive pole | DC 5~12V, 12V or 5V is recommended |
| 2 | GND | Crimped power interface, negative pole | The negative pole of the power supply is connected to the system ground and shell. |
| 3 | 485_B | Serial port terminal | Terminal B for external connection to other RS485 devices |
| 4 | 485_A | Serial port terminal | Connect to terminal A of other external RS485 devices |