Waveshare Rail Mount Serial Server RS485 to WIFI/Ethernet Module, Modbus MQTT Gateway, 21968

Characteristics
This is a RS485 IoT gateway/data acquisition device designed for industrial environment. It combines multiple functions in one, including serial server, Modbus gateway, MQTT gateway, RS485 to HTTPD client, etc. With RS485, WIFI and Ethernet ports, the module can realize functions such as serial to WIFI, serial to Ethernet, Ethernet to WIFI and so on. Using screw terminals for power input, it supports 5~36V wide range power supply. Rail-mount V0 flame retardant case design, small size, easy to install. It is suitable for applications such as data acquisition, IoT gateway, IoT safety and security, and intelligent instrument monitoring.
Specifications
Scheme:
1. Communication interface: RS485, screw terminal
2. Power supply: 5~36V DC, screw terminal
3. Case: PC+ABS, V0 flame retardant grade
4. Dimensions: W x D x H: 109.66 x 28 x 64.71 mm
Communication:
1. Ethernet: 10/100M auto-negotiation RJ45 connector
2. WIFI: 802.11b/g/n compliant
3. Serial port: RS485 interface (overcurrent, lightning, overcurrent protection)
Wireless Specifications:
1. Frequency band: 2.412~2.484GHz
2. Wireless network: Station/AP/AP+Station mode
3. Security mechanism: WPA-PSK / WPA2-PSK
4. Encryption type: TKIP / AES
5. Transmission power:
- 802.11b: +19dBm (11Mbps)
- 802.11g: +18dBm (54Mbps)
- 802.11n: +17dBm (HT20, MCS7); +17dBm (HT40, MCS7)
6. Sensitivity reception:
- 802.11b: -89dBm (11Mbps)
-802.11g: -81dBm (54Mbps)
- 802.11n: -73dBm (HT20, MCS7); -71dBm (HT40, MCS7)
Serial Specifications:
1. Baud rate: 300 ~ 460800 bps
2. Parity bits: none, odd, even, sign, space
3. Data bit: 5 ~ 9 bit
4. Flow Control: N/A
Software
1. Protocol: TCP/UDP/ARP/ICMP/DHCP/DNS/HTTP/MQTT
2. Configuration: Host, Web Browser, Serial AT Command
3. Communication method: TCP/IP direct communication, VCOM
4. Operation mode: Transparent transmission, serial command, HTTPD client, Modbus TCP to Modbus RTU
Environmental requirements
1. Working temperature: -40 ~ 85 degrees C
2. Storage temperature: -45 ~ 125 degrees C
3. Humidity range: 5% ~ 95% RH
List of packages
1. RS485 TO WIFI/ETH x 1
2. Antenna x 1