Feature
- RJ45 adaptive 10/100M Ethernet interface;
- Support multiple working modes (TCP Server, TCP Client, UDP Server, UDP Client, HTTPC, MQTTC);
- Support three configuration methods: configuration tool, web page and AT command;
- Server mode supports multiple socket connections;
- Support multiple baud rates;
- Support DHCP function;
- Support DNS (domain name resolution), and custom domain name resolution server;
- Support multiple Modbus gateways (simple protocol conversion, multi-host mode, storage gateway, configurable gateway, etc.);
- Supports quick access to Alibaba Cloud, Baidu Cloud, OneNET, Huawei Cloud, and standard MQTT servers of version 3.1;
- Support HTTP protocol (GET/POST request)
- Support virtual serial port;
- Support timeout restart function, time can be customized;
- Support short connection function, short connection interval time customization;
- Support heartbeat package and registration package function;
- Support serial port cache cleaning function;
- Support access to external network and local area network;
- Support hardware reset to factory settings;
- Support online upgrade
Specifications
| Item | Instruction |
| Operating Voltage | DC 8~28V |
| Working current | 9mA @ 12V |
| Interface | Serial port (RS485, 3*3.81mm phoenix terminal)
Ethernet port (RJ45) |
| Work Mode | TCP Server、TCP Client、UDP Server、UDP Client、HTTP Client、
MQTT Client(default TCP Server) |
| Socket connection | Support 6-way client connection (TCP server mode) |
| Network protocol | IPv4、TCP/UDP、HTTP、MQTT |
| How to get IP | DHCP、Static IP (default static IP) |
| DNS | Support |
| DNS server | Customizable (default 114.114.114.114) |
| Configuration method | Web pages, configuration tools, AT commands |
| IP address | Customizable (default 192.168.3.7) |
| local port | Customizable (default 8887) |
| subnet mask | Customizable (default 255.255.255.0) |
| gateway | Customizable (default 192.168.3.1) |
| target IP | Customizable (default 192.168.3.3) |
| destination port | Customizable (default 8888) |
| Serial port cache | 1024Byte |
| Packaging mechanism | 512 Byte |
| Serial port baud rate | 1200 ~ 230400 bps(default 115200) |
| data bits | 5、6、7、8(default 8) |
| stop bit | 1、2(default 1) |
| Check Digit | None、Odd、Even、Mark、Space(default None) |
| Product Size | 92 mm * 66mm * 30mm (length*width*height) |
| product weight | 81g ± 5g |
| Working temperature
and humidity |
-40 ~ +85℃、5% ~ 95%RH(no condensation) |
| Storage temperature
and humidity |
-40 ~ +105℃、5% ~ 95%RH(no condensation) |
Default parameters
| Item | default parameters |
| IP Address | 192.168.3.7 |
| Default local port | 8887 |
| subnet mask | 255.255.255.0 |
| default gateway | 192.168.3.1 |
| Default working mode | TCP Server |
| Default destination IP | 192.168.3.3 |
| Default destination port | 8888 |
| Serial port baud rate | 115200 |
| Serial port parameters | None / 8 / 1 |





