NB183/x-V2 is EBYTE’s second-generation industrial-grade 8-port serial server, supporting RS232/RS485 to Ethernet conversion. It features 6 network working modes, Modbus intelligent gateway, electrical isolation, and dual power interfaces, suitable for high-reliability scenarios such as equipment room monitoring, intelligent transportation, and industrial IoT.
Widely used in equipment room monitoring, environmental monitoring, intelligent transportation, barrier gate control, smart lockers, and other industries.
key Features
Industrial-grade design for stability and high-level port protection;
Rich LED status indicators for quick device status identification;
Supports terminal block or DC jack power supply, 8~28V DC wide voltage input with reverse polarity protection;
Terminal interface (RS485) and standard DB9 interface (RS232);
Isolated version supports 8-channel independent hardware isolation;
10/100M Ethernet interface;
2 configuration methods: configuration tool and AT commands (web configuration to be supported);
Baud rate: 2400～115200bps, supporting odd, even, and no parity;
Configurable DNS for domain name resolution;
Customizable timeout restart function (default 30 minutes);
Short connection function with customizable duration;
Serial port buffer cleaning;
Hardware factory reset;
Online firmware upgrade for easy function customization;
Multiple registration and heartbeat packet modes;
Supports DHCP for dynamic acquisition of IP, subnet mask, gateway, DNS server, etc.;
Working modes: TCP Server, TCP Client, UDP Server, UDP Client, MQTT Client, HTTP Client;
Supports multiple simultaneous servers, with up to 5 client connections per port;
Multiple Modbus gateways for active reporting of RTU devices;
Modbus TCP/RTU protocol conversion, configurable as storage mode for automatic data collection or multi-master polling mode;
MQTT gateway for quick access to Alibaba Cloud and standard MQTT3.1.1 servers (OneNET, Baidu Cloud, Huawei Cloud, etc.);
Modbus data active reporting to TCP transparent transmission servers, MQTT servers, etc.;
HTTP Client mode with HTTP/1.1, supporting GET and POST requests;
Communication via TCP/IP directly or through "virtual serial port".