8 Ways RS485 RS232 to Ethernet Serial Server NB183-V2 Series TCP UDP MQTT HTTP Modbus Gateway TCP- RTU POE

The NB183-V2 is a second-generation 8-port serial server . It integrates a TCP/IP protocol stack, enabling bidirectional transparent transmission of serial-to-Ethernet data, Modbus protocol conversion, and serial device cloud connectivity. This serial server supports host computer configuration and is widely used in industries such as computer room monitoring, environmental monitoring, intelligent transportation, gate control, and smart express lockers. It is coated with conformal coating, offering mildew, moisture, and salt spray resistance.

• Industrialized design is stable and reliable with high level of port protection;
  
• Abundant LED status indicators, quickly locate the working status of the device;
  
• Support terminal or DC header power supply, 8~28V DC wide voltage input, support reverse connection protection;
  
• Support terminal type interface (RS485) and standard DB9 interface (RS232);
  
• Isolated version supports 8-channel serial port independent hardware isolation;
  
• Support 10/100M Ethernet interface;
  
• Support configuration tool, AT command 2 kinds of configuration methods (subsequent can support web page configuration);
  
• Baud rate support 2400～115200bps, support odd, even, no parity mode;
  
• Support configurable domain name resolution service, i.e. DNS;
  
• Support timeout restart function, time can be customized, default 30 minutes;
  
• Support short connection function, customizable short connection maintenance time;
  
• Support serial port cache cleaning function;
  
• Support hardware restore factory settings;
  
• Supports online upgrade, which is convenient for users to customize the functions;
  
• Support multiple registration packet and heartbeat packet modes;
  
• Support DHCP to get IP, mask, gateway, DNS server and so on dynamically;
  
• Support TCP Server, TCP Clinet, UDP Server, UDP Clinet, MQTT Clinet, HTTP Clinet multiple working modes;
  
• Supports multiple simultaneous open servers, each of which supports a maximum of 5 client connections;
  
• Supports a variety of Modbus gateways, which can realize the active reporting of RTU devices;
  
• Support Modbus TCP and Modbus RTU protocol inter-transfer, can be configured as a storage-type mode to automatically collect device data, you can also use a question-and-answer multi-host mode;
  
• Support MQTT gateway function, fast access to AliCloud and standard MQTT3.1.1 servers (OneNET, Baidu Cloud, Huawei Cloud, etc.);
  
• Support Modbus data active reporting TCP transparent transmission servers, MQTT servers and so on;
  
• Support HTTP client mode, using HTTP/1.1 protocol, can be configured as GET, POST two kinds of request;
  
• Can use TCP/IP direct communication or through the “virtual serial port” connection communication.