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16 Port Serial Ethernet Server | Support SSL, MQTT

View : 1,200
Type : Serial to Ethernet Converter
Description :

The device is an industrial din-rail serial server with IP40 rating. It supports 16 ports RS-232/RS-422/RS-485 to 2 ports 100Mbps Ethernet.


The device is an industrial din-rail serial server with IP40 rating. It is a networking device that enables serial devices to immediately gain networking capabilities and allows for centralized management of distributed serial devices and hosts over a network. It supports 16 ports RS-232/RS-422/RS-485 to 2 ports 100Mbps Ethernet, meeting the dual IP and dual MAC address/multi-network management or network backup requirements, and can be mounted using a 35mm rail or wall-mounted method.


The serial port server supports various network protocols, such as TCP, UDP, ARP, ICMP, HTTP, DNS, DHCP, SNMP, Telnet, SSH, MQTT, and has comprehensive management functions, including access control, quick configuration, online upgrade, etc. Each serial port supports up to 4 TCP or UDP session connections and supports multiple operation modes such as Modbus TCP, TCP Server, TCP Client, UDP Server, UDP Client, and more. It also supports web-based access. In addition, the accompanying management configuration tool based on the Windows platform can achieve immediate networking of serial devices through simple settings. The network management system has a friendly interface design, easy operation, and can provide a good user experience.


The hardware adopts a fanless, low power consumption, wide temperature and voltage design, and has passed strict tests that comply with industry standards, making it suitable for industrial environments with rigorous EMC requirements. It can be widely used in PLC control and management, building automation, healthcare automation systems, measurement and environmental power monitoring systems, and many other embedded network control application products, such as:

● Industrial automation production
Security access control: network access control, alarm devices, infrared detection alarms, remote card readers
Smart home devices: smart home gateway, smart socket, smart switch
Network IO controller: industrial remote IO input, remote relay control
Building intelligence and energy monitoring
Medical monitoring equipment


16 port serial server


The device utilizes an ARM9 processor with a main frequency of 300MHz and runs on the Linux OS Openwrt system.

It supports 2 ports 10/100M adaptive Ethernet and provides dual IP and dual MAC addresses to meet the requirements of multi-network management or network backup.

Ethernet supports 10/100base-T adaptive, with auto-negotiation (Auto-Nego Full&half duplex) and automatic crossover detection (MDI/MDIX).

Serial port supports non-blocking communication at line speeds ranging from 300bps to 150000bps.

There are 2 modes of serial data port:

   1. Each port offers one of three interface types: RS-232/RS-422/RS-485, which can be configured arbitrarily at the factory.

   2. Each port offers all three interface types: RS-232/RS-422/RS-485, which can be set to different interface modes on-site using DIP switches.

It supports Modbus TCP, TCP Server, TCP Client, UDP Server, UDP Client, and other operation modes.

Transparent conversion of Modbus-RTU to Modbus-TCP enables reading of serial device data over the network.

It supports SSL security protocol to encrypt serial data transmission.

It supports MQTT multi-topic subscription and publishing functions.

● MQTT transparent transmission and Modbus-to-JSON packet conversion functions are supported, including parsing of JSON data from the server and periodic reporting functions.

It integrates with various cloud platforms such as Huawei Cloud, Alibaba Cloud, and Mobile Cloud through the MQTT protocol.

It supports monitoring of the status and parameters of serial ports, with communication status displayed clearly.

It supports communication across gateways and routers, with virtual serial port driver access mode and automatic reconnection after network interruption.

Flexible serial data framing settings are available to meet various packet splitting requirements.

It supports a standard TCP/IP SOCKET application program to access TCP, supporting multiple connections to enable up to 4 users to monitor or manage serial devices simultaneously.

In UDP mode, the device supports communication between single or multiple machines, enabling multiple users to simultaneously monitor or manage serial devices.

It supports multiple configuration methods, including Windows configuration tool, SSH, Telnet, and WEB, and supports SNMP network management.

It supports local and remote system firmware updates.

It supports wide range 9-55V AC and DC power input, and has internal isolation and redundant dual power input.

It supports power overload protection and reverse connection protection, which meets industrial EMC requirements.

It has a strong lightning protection function, is resistant to lightning strikes, high voltage induction, surge, etc.; and has a fanless design for efficient heat dissipation and reduced repair time.

It has an anodized aluminum alloy casing with IP40 protection level, able to withstand harsh environments, and can be mounted on a rail or wall-mounted.

Working temperature: -40℃~ +85℃.

The device has passed the 100% burn-in test.


● 10/100M Ethernet Port

Protocol: IEEE 802.3ab, IEEE 802.3z

Rate: 10/100M self-adaptive, full/half duplex self-adaptive

MAC Address Table Capacity: 4096 MAC addresses

Physical Interface: RJ45, support Auto-MDIX


● Serial Port


   EIA/TIA-232 RS-232 (ITU-T V.28)

   EIA/TIA-422 RS-422 (ITU-T V.11)

   EIA/TIA-485 RS-485 (ISO/IEC8284)

Serial port interface:

   RS-422: TxD+ TxD- RxD+ RxD- GND

   RS-485 4 wires: TxD+ TxD- RxD+ RxD- GND       RS-485 2 wires: A(corresponding to TX+) B(corresponding to TX-) GND

   RS-232: RXD TXD GND


● Environmental Indicator

Working temperature: -40℃—+85℃

Storage temperature: -40℃—+85℃

Working humidity: 0%—95% (no condensation)

MTBF: >100,000 hours




Function Description

transmit 16 channels of RS232/422/485 serial data on Ethernet.

Port Description

16 RS232/422/485 serial ports;2 100M Ethernet electric ports


redundant dual power input DC9-55V or AC7-43V,power consumption<5W

Overload protection: support, reverse connection protection, support, redundant protection, support

Access terminal: 4 core 5.08mm space plugged-in terminal


shell: IP40 protection grade, aluminum alloy material
size: 133mm(L) x 120mm(W) x 42.0mm(H)

mounting method: DIN-rail, wall-mounted





Case 1: single application

application of Industrial 16 Ch Serial to Ethernet (TCP/IP) Converter

Case 2: paired application

application of Industrial 16 Ch Serial to Ethernet (TCP/IP) Converter


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