[Transmitting power]：30dBm
[Communication distance]：10km
[Product size]：80*28*28.5mm
[Product weight]：32±2g
[Introduction]：EWD95M-400GL30 (485) is a wireless data transmission radio based on ChirpIoT™ Spread Spectrum. It has multiple transmission modes, operates in the 410.125~493.125MHz frequency band, supports E290 series domestic LoRa modules intercommunication, provides transparent RS485/RS232 interface, uses plastic shell, guide rail installation structure, and supports 8~28V (DC) wide voltage input. It adopts the new generation of ChirpIoT™ spread spectrum technology, supports half-duplex wireless communication, has high anti-interference and high sensitivity; supports air wake-up, wireless configuration, automatic relay, communication key, AT command, IAP upgrade and other functions, and supports sub-packet length setting. The product is sprayed with three anti-paints, with "anti-mildew", "anti-moisture" and "anti-salt spray" functions
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| Serial number | name | Function | illustrate |
| 1 | PWR | Power indicator | Lights up when the power is on. |
| 2 | T/R | Send/Receive Indicator | The flashing light is red when sending data and green when receiving data. |
| 3 | FOR | Mode indicator | Working mode indicator light. |
| 4 | M1 | Mode indicator | Working mode indicator light. |
| 5 | Mode | Mode switch button | Working mode switching control. |
| 6 | A | RS485 Signal A | RS485 Signal A |
| 7 | B | RS485 Signal B | RS485 Signal B |
| 8 | - | GND | Negative power supply |
| 9 | + | VCC | Power positive (DC 8~28V) |
| 10 | ON | RF Interface | SMA-K, external threaded inner hole. |
★Note: If communication is not smooth when the radio is connected to multiple devices, but not when connected to a single device, try connecting a 120Ω resistor in parallel between the 485_A terminal and the 485_B terminal.
★EWD95M-400SLxx(xxx) can be powered by 8~28V (DC) power supply, and the wiring port is connected by terminal block.