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NB124-V2 Isolation 2-way serial port server Supports standard ModBus TCP to RTU

[Interface Signal]:RS485/RS422/RS232

[Operating Voltage]:DC 8-28V

[Installation Method]:Positioning hole installation

[Network Protocols]:IP, TCP/UDP, IPv4, ICMP, APR, DHCP, DNS, HTTP, MQTT

[size]:145*103*28mm

[Product weight]:360 ± 5g

[Introduction]:The NB124-V2 is a second-generation, dual-port serial server developed by Ebyte. It integrates a TCP/IP protocol stack and enables bidirectional, transparent serial-to-Ethernet data transmission, Modbus protocol conversion, and serial device cloud connectivity. It supports host computer configuration, enabling easy networking and cloud connectivity for serial devices with simple configuration. It 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 for mildew resistance, moisture resistance, and salt spray resistance.

project interface illustrate
power supply Wire terminal

DC 8~28 V, power cannot be input simultaneously;

Wire terminal: 5.08mm*2 Phoenix terminal;

DC female

DC female connector: straight-in round hole, outer diameter 5.5mm, inner diameter 2.0mm;

Network port RJ45

10/100M

Working Mode TCP Server、TCP Client、UDP Server、UDP Client、HTTP Client、MQTT Client(默认 TCP Server)
Socket Connection TCP server single serial port supports up to 5 client connections
Network Protocol IP、TCP/UDP、IPv4、ICMP、APR、DHCP、DNS、HTTP、MQTT
How to obtain IP DHCP, static IP (default static IP)
Domain name resolution support
Configuration method Configuration tools, AT commands
IP address Customizable (default, 192.168.3.7)
Local Port Customizable (default, channel 1 to channel 8: 8001-8008)
Subnet mask Customizable (default, 255.255.255.0)
Gateway Customizable (default, 192.168.3.1)
Serial port buffer 8×3k Byte
Serial port packaging mechanism 1024 Byte
Serial port baud rate 2400 to 115200 bps (default 115200)
Data bits 8
Stop bits 1 (default), 2
Check digit None (default), Odd, Even
Installation Positioning hole installation
Working temperature and humidity -40 ~ +85℃, 5% ~ 95%RH (non-condensing)
Storage temperature and humidity -40 ~ +105℃, 5% ~ 95%RH (non-condensing)