Com-Server PoE 3x Isolated

Serial Network Connection with the Com-Server PoE 3x Isolated from Wiesemann & Theis

The Com-Server PoE 3x Isolated from Wiesemann & Theis is a powerful and industrial-grade solution for integrating up to three serial devices simultaneously into networks via TCP/IP Ethernet. With numerous network services, from virtual COM ports and Modbus/TCP gateway to FTP client/server and box-to-box connections, the device offers flexible communication options for a wide range of applications. The galvanic isolation of the serial ports, easy commissioning via WuTility, support for Power-over-Ethernet (PoE), and robust design for DIN rail mounting make the Com-Server PoE 3x Isolated ideal for Industry 4.0, automation technology, and network environments requiring the highest reliability and security. This article highlights the technical features, applications, and advantages of this versatile solution.

Transparent Serial Communication with Three Ports

The Com-Server PoE 3x Isolated enables seamless integration of up to three serial devices with RS232, RS422, or RS485 interfaces into modern network environments. The galvanic isolation of the ports provides additional protection against electrical interference, which is especially beneficial in industrial environments. Windows COM redirection allows serial programs to be redirected to virtual COM ports without requiring changes to the program code. This makes the Com-Server the ideal solution for virtual environments such as VMware or HyperV, where physical COM ports are missing, or as a replacement for local serial interfaces. Communication can optionally be secured with TLS-PSK encryption to protect sensitive data. Multipoint operation allows data distribution to up to six network participants simultaneously, while packetization options optimize serial protocols with sensitive timing requirements.

Box-to-Box for Transparent Data Transmission

The box-to-box function of the Com-Server PoE 3x Isolated enables the logical connection of two Com-Servers over the network to create a bidirectional, transparent, and operating system-independent data tunnel. Serial data from up to three devices is transmitted quickly and reliably between the Com-Servers, with automatic reconnect functions handling connection interruptions. This feature is ideal for applications where serial devices at remote locations need to be connected, such as automation technology or distributed production systems. Communication can optionally be secured with TLS encryption to ensure the highest data security. Multipoint and packetization options are also available here to tailor data transmission to specific requirements.

TCP-/UDP Socket Communication for Flexible Integration

For developers, the Com-Server PoE 3x Isolated offers comprehensive options for integrating serial devices into custom network applications via TCP-/UDP socket communication. As a TCP client, the connection can be actively controlled, while the TCP server mode enables event-driven connections, optionally with TLS-PSK encryption. The UDP protocol provides efficient, connectionless communication for applications requiring low latency. This flexibility makes the Com-Server ideal for integration into tailored software solutions such as control systems or data loggers, also supporting multipoint operation and packetization options for optimized data transfer.

Modbus/TCP Gateway for Industrial Applications

The Com-Server PoE 3x Isolated features an integrated Modbus/TCP gateway that quickly and reliably integrates serial devices with Modbus/RTU protocol (e.g., energy meters, transmitters, or frequency converters) into Modbus/TCP environments. With three isolated ports, multiple devices can be connected simultaneously, increasing efficiency in complex industrial networks. This function is particularly valuable in Industry 4.0, where networking of sensors and controllers plays a central role.

FTP Client/Server for Data Archiving

The Com-Server PoE 3x Isolated supports FTP client and server functions to transfer and archive serial data such as measurement values from scales, barcode readers, or status messages from UPS systems. This functionality uses the FTP capabilities of most operating systems and enables easy integration into existing workflows. For example, serial outputs can be automatically uploaded to a central server or stored locally on the Com-Server for later retrieval via FTP. This feature is ideal for data archiving and monitoring in industrial and office environments.

Galvanically Isolated Interfaces and Robust Hardware

The Com-Server PoE 3x Isolated is equipped with three switchable RS232/RS422/RS485 interfaces that are galvanically isolated, and an Ethernet interface (10/100BaseT) with autosensing and auto-MDIX. The galvanic isolation protects against electrical interference and increases reliability in demanding environments. The robust design, including the option for DIN rail mounting, makes the device ideal for use in industrial environments. Support for Power-over-Ethernet (PoE) and an external supply (12V-48V DC) via screw terminal provides flexible installation options. The standards-compliant design ensures high immunity to interference according to EN 61000-6-2 and low emissions according to EN 55032:2015 + A1 Class B, EN 61000-3-2, and EN 61000-3-3.

Easy Commissioning and Management

Commissioning the Com-Server PoE 3x Isolated is effortless with the WuTility software, which makes the device operational with only three clicks. Configuration is done via web-based management (HTTP/HTTPS with certificate management), Telnet, or control sockets from custom applications. Support for DHCP facilitates integration into networks, while advanced protocols such as SLIP, Wake-on-LAN, and 802.1x EAP (MD5) provide additional flexibility. Remote configuration enables management of the device from any network location, simplifying maintenance and customization in large networks.

Versatile Applications

The Com-Server PoE 3x Isolated is designed for a wide range of applications in Industry 4.0, automation technology, and IT environments. In industry, it integrates multiple serial devices such as sensors, transmitters, or controllers into modern networks, for example via Modbus/TCP. In automation technology, the box-to-box function enables connection of remote devices, e.g., in production facilities or building cabling. For data archiving, it stores serial data from scales or barcode readers via FTP. Other applications include integration of legacy devices, networking of IoT devices, and monitoring of status messages in networks.

Durability and Reliability

The Com-Server PoE 3x Isolated is designed for continuous operation and comes with a five-year warranty. The robust hardware, galvanic isolation, and standards-compliant design make it ideal for industrial environments. Support for TLS encryption and multipoint operation ensures secure and flexible data transmission, while packetization options guarantee reliable communication with sensitive serial protocols. These features make the Com-Server a durable and reliable solution for serial network connection.

Please note: No power supply is included in the delivery.

A Future-Proof Solution for Multiport Serial Network Connection

The Com-Server PoE 3x Isolated from Wiesemann & Theis is a versatile and reliable solution for integrating up to three serial devices into networks. With features such as virtual COM ports, box-to-box connections, Modbus/TCP gateway, and FTP client/server, it offers a flexible platform for Industry 4.0, automation technology, and data archiving. The galvanic isolation, easy commissioning via WuTility, support for PoE and TLS encryption, as well as robust hardware, make it ideal for demanding applications. Whether for networking sensors, connecting legacy devices, or secure data transmission – the Com-Server PoE 3x Isolated is an indispensable tool for professional users.