Best Serial Device Servers in 2026

This is a serial RS232 to Ethernet server, used for data transparent transmission. USR-TCP232-302 is a low-cost serial device server,whose function is to realize bidirectional transparent transmission between RS232 and Ethernet. USR-TCP232-302 is internally integrated with TCP/IP protocol. User can apply it to device networking communication.

Support DHCP, automatically obtain an IP address and query IP address through serial setting protocol, Support DNS function, Set parameters through webpage, Upgrade firmware via network.

Auto-MDI/MDIX, RJ45 port with 10/100Mbps, Serial port baud rate from 600 bps to 230.4 Kbps, Check bit of None, Odd, Even, Mark and Space.

Dual Serial Device Server: Cpu: Cortex-M4 120Mhz, Serial RS485 & RS232 to Ethernet Server, 2 Serial Ports: 1 Port is RS232, 1 Port is RS485, 1 RJ45 Ethernet Port. Support RS232 & RS485 Working at The Same Time.

Data Link Protocol: Ip£¬Tcp£¬Udp£¬Dhcp£¬Dns£¬Http£¬Arp£¬Icmp£¬Web Socket£¬Httpd Client.

Speed: 10 / 100 Mbps, Mdi / Mdix Cross Direct Automatic Switching, Baud Rate: Rs-232£º600Bps ~ 230. 4Kbps£¬Rs-485£º600Bps ~ 1Mbps; 1.5Kv Electromagnetic Isolation, Shell Isolation Protection; Anti-Static 2Kv, Lightning Protection.

Small size for easy installation / SNMP MIB-II for network management

Real COM/TTY drivers for Windows and Linux

Easy-to-use Windows utility for configuring multiple device servers

Rugged aluminum housing delivers reliable performance

Fast, 230.4 kbps baud rate

Mounts to a surface or on a DIN rail, with a built-in mounting bracket and included DIN rail clips

Digi Portserver Ts 4 Device Server - 4 X Rj-45 , 1 X Rj-45

Complete network connectivity solution

Integrated 10/100 Ethernet port and serial cable

Complete device server application with Full IP stack and web server

ACCESS SERIAL DEVICES REMOTELY - RS485 Serial device server transfer bidirectional transparent transmission of data between RS485 and Ethernet IP. It can configure and remotely manage RS485 serial devices on an IP network.Supports RS485 half duplex transmission, simple to set to work.

QUICKLY CONNECTS DEVICES TO THE INTERNET - The rs485 to ethernet converter supports 300 baud to a 230400bps data rate, connecting a RS485 serial device to the ethernet instantly.

MULTIPLE CONTROL MODES - Support Work Mode: TCP Server, TCP Client, UDP,VCOM.Support Auto-MDI/ MDIX, RJ45 Port with 10 / 100Mbps.Support web browser settings.

2 serial port, RS232 RS485 RS422 three-in-one.Device Server with Modbus;

Realize transparent transmission between TCP/UDP data package and RS232/RS485/RS422 interface;

Voltage range of 5~36V DC, Modbus RTU to Modbus TCP, CTS/RTS, XON/XOFF.

【Function】The Wifi Serial Server is to realize bidirectional transparent transmission between to WIFI

【Easy to Use】The Wifi Serial Server is Small size, high cost performance.

【Porfessional】The Wireless Networking Modbus can connect RS232 to WIFI, support serial CLI command configuration, support LAN Telnet configuration.

ACCESS SERIAL DEVICES REMOTELY -It is design to realize bidirectional transparent transmission between RS232 and Ethernet.Use this RS232 to Ethernet IP converter to connect, configure and remotely manage RS232 serial devices on an IP network.

QUICKLY CONNECTS DEVICES TO THE INTERNET - The rs232 to ethernet converter supports 300 baud to a 230400bps data rate, connecting a serial device to the ethernet instantly.

MULTIPLE CONTROL MODES - Support Auto-MDI/ MDIX, RJ45 Port with 10 / 100Mbps. Support Work Mode: TCP Server, TCP Client, UDP,VCOM.Support Flow control CTS/RTS.

Bi-directional transparent transmission between serial data and Ethernet Packets: 3 in 1 Serial Device Server is designed with an RS232, RS422, or RS485 serial interface to a local area network to transmit serial data over Ethernet (TCP/IP)

Serial server box supports DHCP and Dynamic DNS function, 4 kinds of working mode: TCP Client、TCP Server、UDP Client and UDP Server; bidirectional Modbus RTU/TCP

Supports 10M/100M, full duplex / half duplex self-adaptive Ethernet interface (compatible with 802.3 protocol); baud rate ranges from 300 bps to 921600 bps; supports IPV4

RS232/RS485/RS422 Serial to Ethernet Server

Work Mode: TCP Server/ TCP Client/ UDP Server/ UDP Client/ HTTPD Client

Synchronous Baud Rate Dynamically Change Baud Rate, Data Bit, Check Bit and Stop Bit of Serial Device Server via Network Command

★【Industrial Serial Server】RS485 to RJ45 Ethernet Module for bi-directional transparent data transmission between RS485 and Ethernet, with rail-mount flame-retardant case design, supports 9~24V wide range power supply

★【Support Modbus Gateway 】Suitable for Modbus gridding upgrade, can be used with 3D configuration software, Support MQTT/JSON to Modbus, more flexible conversion between different protocols

★【Multi communication modes】Supports TCP server / TCP client / UDP mode / UDP multicast

Bi-directional transparent transmission between serial data and Ethernet Packets: Compact Serial Device Server is designed with an RS232 serial interface to a local area network to transmit serial data over Ethernet (TCP/IP)

Serial server box supports DHCP and Dynamic DNS function, 4 kinds of working mode: TCP Client、TCP Server、UDP Client and UDP Server; bidirectional Modbus RTU/TCP

Supports 10M/100M, self-adaptive Ethernet interface (compatible with 802.3 protocol); baud rate ranges from 300 bps to 921600 bps

Guide-way design: suitable for internal installation of cabinet in industrial field.

Compact size: relative to the ordinary serial port server, the width is small, does not take up space.

Terminal type power supply, 9~24V wide voltage input, with anti-opposite power connection protection.

ARM core, Cortex-M0 solution, equipped with deeply optimized TCP/IP protocol stack. It has low latency and strong scalability, stable and reliable

Supports Modbus RTU to Modbus TCP protocol conversion and multi-host polling

Supports hardware and software watchdog, automatically restarts when the device goes down.