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Industrial Serial Server, RS232 to RJ45 Ethernet, TCP/IP to Serial, Rail-mount


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Manufacturer Part Number:
₹2,073.26 inc. GST
₹1,757.00 ex. GST
₹2,073.26 inc. GST
₹1,757.00 ex. GST


This is an industrial-grade RS232 to RJ45 Ethernet serial server that supports TCP/IP to serial communication and has rail-mount support. It serves as a data acquisition device and IoT gateway in industrial environments. It boasts a multitude of functionalities such as Modbus and MQTT gateway, RS232 to JSON conversion, and more. The device is equipped with both RS232 and Ethernet ports and utilizes screw terminals for power input. Its compact rail-mount case design allows for easy installation and makes it ideal for collecting data from various RS232 instruments and sensors in industrial settings. It can be used to collect data on local networks or autonomously collect and deliver data to cloud servers.

  • Supports TCP server, TCP client, UDP mode, and UDP multicast. As a TCP client, it also supports TCP server-side functions. Supports 30 TCP connections as a TCP server and 7 destination IPs as a TCP client.
  • Supports the baud rate of 1200~115200bps, the data bit supports 5~9 bits, and the parity bit can be no check, odd check, even check, mark, or space.
  • Support the function of sending MAC address on device connection, which is convenient for cloud management of devices.
  • Provides a secondary development kit DLL development library for computer-side search and configuration of devices.
  • Support Web browser configuration, support DHCP dynamic acquisition of IP, DNS protocol connection name server addresses.
  • Support remote search for devices, configure device parameters, and upgrade device demos in the cloud.
  • Support remote viewing of the TCP connection status, serial port data sending, and receiving the status of the device through software. The virtual serial port supports the data monitoring function.
Advanced Software Function
  • Support Modbus gateway function, support Modbus RTU to Modbus TCP. It can support storage-type Modbus, which can automatically collect device data and store it; non-storage mode Modbus gateways are also supported.
  • Support multi-host function: In the query mode of one question and answer, the Ethernet port allows multiple computers to access the same serial device at the same time.
  • The MQTT gateway feature is supported.
  • Support JSON to Modbus RTU and 645-meter protocol, support HTTP POST, and HTTP GET format to upload data.
  • Support NTP protocol to obtain network time, for serial port output, the latter is used for protocol content delivery.
  • Support custom heartbeat package and registration package functions: it can be convenient to communicate with the cloud and identify devices.
  • Supports the function that TCP requires password authentication to establish a connection to ensure connection security.
  • It supports the function of data submission and delivery in HTTP mode, and the cloud can directly use the HTTP GET command to interact with the serial port data of the device.

RS232 To RJ45 Ethernet Module

Rail-mount RS232 serial server

Modbus Gateway Support

Suitable For Modbus Gridding Upgrade, Can Be Used With Specific Configuration Software

Multi Communication Modes

Supports TCP Server / TCP Client / UDP Mode / UDP Multicast


More Flexible Conversion Between Different Protocols

When used as MQTT gateway, the devices can upload serial data to MQTT server by MQTT protocol through transparent transmission, supported servers including Baidu Cloud MQTT, Alibaba Cloud MQTT, China Mobile OneNet, etc. The acquired Modbus RTU or non-standard serial data can be parsed into JSON format and packaged into MQTTdata packet for uploading.

When used as JSON data acquisition gateway, the devices can be connected to data acquisition instruments through RS232 connection, then acquire data automatically, convert the data into JSON format, and finally post it to server. The acquired data supports Modbus RTU 645 instrument 97 version, 645 instrument 07 version, as well as sorts of non-standard RS232 protocols. The uploaded data format can be configured via host, and the JSON upload protocol can be MQTT protocol, HTTP POST protocol, HTTP GET protocol, and so on.

Multi Hosts Roll-Polling Support

Different Network Devices Will Be Identified And Responsed Respectively,
No More Crosstalk Issue While Communicating With Multi Network Devices

User-Defined Heartbeat/Registration Packet

Easy For Cloud Communication And Device Identification

NTP Protocol Support

Getting Network Time Info For Serial Output Or Data Upload

Multi Configuration Methods

Supports Web Browser Configuration, Obtaining Dynamic IP Via DHCP,
DNS Protocol Connected Domain Server Address

Interface Introduction

Outline Dimensions

Technical Specifications

Serial server, Modbus gateway, MQTT gateway
Bi-directional transparent data transmission between RS232 and Ethernet
RS232 port x 1, Ethernet port x 1
Power Supply:
Screw terminal DC 6~36V
Isolation Protection:
Power isolation, signal isolation protection
Common Ethernet port, 10 / 100M auto-negotiation RJ45 connector, 2 KV surge protection
Serial Port:
Isolated RS232
Baud Rate:
300 ~ 115200 bps
Parity Bit:
None, odd, even, mark, space
Data Bit:
5 ~ 9 bit
Flow Control:
No flow control
Config Method:
Host, web browser, device management functions library
Communication Methods:
TCP/IP direct communication, VCOM
Operating Mode:
TCP server, TCP client (coexisting with TCP server), UDP, UDP multicast
Operating Temperature:
-40 ~ 85C
Humidity Range:
5% ~ 95% relative humidity
L x W x H:87 x 36 x 59 mm

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.