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Home >Modem>Serial server>Multi-port serial server
Modbus RTU to TCP gateway
rs485/232/422 to Ethernet network port
4-way serial port server
Modbus RTU to TCP gateway
rs485/232/422 to Ethernet network port
4-way serial port server
Ebyte NB144S Modbus RTU to TCP gateway rs485/232/422 to Ethernet network port module industrial-grade

[Interface signal]：RS485/RS422/RS232

[Baud rate]：2400~115200bps (default 115200)

[Product size]：198x109x26.5mm (LxWxH)

[Product weight]：530g±5g

[Installation method]：positioning hole installation

[Introduction]：NB144S is a 4-way serial port server which supports POE power supply. It integrates TCP/IP protocol stack inside and can realize two-way transparent data transmission from 4-way serial port to Ethernet port . The device has ModBus gateway function, supports Modbus TCP to RTU, and supports auto polling. The product adopts an industrial-grade standard design to ensure the stability of the equipment in harsh working environments, and the rich luminous effects are used to signal the different working states of the equipment.

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Project

Interface

illustrate

power supply

Crimp terminal

DC 8～28 Power supply, used when not available;
Crimp terminal: 5.08 mm Phoenix terminal;

D C female

D C female head: straight plug-in round hole, outer diameter
5.5mm , inner diameter 2.0 mm ;

Network port

RJ45

10M

serial port

Channel 1 to
Channel 4

Interface 1 ( RS485 , 3.81mm Phoenix terminal, support isolation);
Interface 2 ( RS232 , standard RS232 line sequence D B9 female);
Interface 3 ( RS 422 , 3.81mm Phoenix terminal, support isolation)

Operating mode

TCP Server (default), TCP Client, UDP Server, UDP Client, HTTP Client , MQTT Client

Network protocol

TCP/IP, UDP, MQTT , HTTP , IPv4, I CMP , APR , D HCP , D NS

IP acquisition method

DHCP, static IP (default)

DNS

Support, address can be configure

configuration method

Parameter configuration host computer , AT command

IP address

192.168.3.7 (customizable)

local por

Channel 1~ 4 : 8 001-800 4 (can be customized)

subnet mask

255.255.255.0 (customizable)

gateway

192.168.3.1 (customizable)

Serial cache

512 Byte

Serial packaging
mechanism

512 Byte

Serial baud rate

2400 ~ 115200 bps (default 115200)

data bit

8

stop bit

1 (default),2

Check Digit

None (default), Odd, Even

installation method

positioning hole

Product Size

198 x 108x26.5mm （LxWxH）

product weight

530g ± 5g

Working temperature
and humidity

-40 ～ +85°C, 5% ～ 95%RH (no condensation)

storage temperature
and humidity

-40 ～ +105°C, 5% ～ 95%RH (no condensation)