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Com-Server 20mA

Serial Network Connection with the Com-Server 20mA from Wiesemann & Theis

The Com-Server 20mA from Wiesemann & Theis is a robust and industrial-grade solution to integrate a serial 20mA/TTY device into networks via TCP/IP Ethernet. With numerous network services such as virtual COM ports, Modbus/TCP gateway, 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 interface, easy commissioning via WuTility, support for Power-over-Ethernet (PoE), and optional TLS-PSK encryption make the Com-Server 20mA ideal for Industry 4.0, automation technology, and network environments requiring highest reliability and security. This article highlights the technical features, application possibilities, and advantages of this specialized solution for 20mA/TTY devices.

Transparent Serial Communication for 20mA/TTY Devices

The Com-Server 20mA enables seamless integration of a serial 20mA/TTY device into modern network environments. Windows COM redirection allows serial programs to be redirected to virtual COM ports without requiring changes to program code. This makes the Com-Server 20mA 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 distribution of data 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 20mA enables the logical connection of two Com-Servers over the network to create a bidirectional, transparent, and operating system-independent data tunnel. Serial data is transmitted quickly and reliably between devices, with automatic reconnect functions handling connection interruptions. This feature is ideal for applications where serial 20mA/TTY devices at remote locations need to be connected, such as in automation technology or distributed production systems. Communication can optionally be secured with TLS encryption.

TCP-/UDP Socket Communication for Flexible Integration

For developers, the Com-Server 20mA offers comprehensive options to integrate serial 20mA/TTY 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 allows 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 20mA ideal for integration into tailored software solutions.

Modbus/TCP Gateway for Industrial Applications

The Com-Server 20mA features an integrated Modbus/TCP gateway that quickly and reliably integrates serial devices using the Modbus/RTU protocol into Modbus/TCP environments. This function is especially valuable in Industry 4.0, where networking of sensors and controllers plays a central role.

FTP Client/Server for Data Archiving

The Com-Server 20mA supports FTP client and server functions to transmit and archive serial data such as measurement values from scales, barcode readers, or status messages from UPS systems. This function is ideal for data archiving and monitoring in industrial and office environments.

Galvanically Isolated Interfaces and Robust Hardware

The Com-Server 20mA is equipped with a galvanically isolated 20mA/TTY interface and an Ethernet interface (10/100BaseT) with autosensing and auto-MDIX. The robust design, including the option for DIN rail mounting, makes the device ideal for use in industrial environments. Power supply is provided via Power-over-Ethernet (PoE) or an external supply (12V-48V DC) via a screw terminal.

Easy Commissioning and Management

Commissioning the Com-Server 20mA is effortless with the WuTility software, which makes the device operational in just three clicks. Configuration is done via web-based management, Telnet, or control sockets from custom applications. DHCP support facilitates integration into networks.

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

Versatile Applications

The Com-Server 20mA is designed for applications in Industry 4.0, automation technology, and IT environments. In industry, it integrates serial 20mA/TTY devices such as sensors or controllers into modern networks. In automation technology, the box-to-box function enables connection of remote devices. In data archiving, it stores serial data from scales or barcode readers via FTP.

Durability and Reliability

The Com-Server 20mA 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.

A Specialized Solution for 20mA/TTY Devices

The Com-Server 20mA from Wiesemann & Theis is a versatile and reliable solution for integrating serial 20mA/TTY devices into networks. With virtual COM ports, box-to-box connections, Modbus/TCP gateway, and FTP client/server, it offers a flexible platform for Industry 4.0 and automation technology.

Datasheets
Datasheet 1

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Datasheet 1 (5.48 MB)

Connections and Indicators:

  • Serial Port: 1× 20 mA/TTY interface (DB9 connector)
  • Baud Rate: 50 to 19,200 baud
  • Data Bits: 7, 8
  • Stop Bits: 1, 2
  • Parity: No, Even, Odd, Mark, Space
  • Flow Control: No, Xon/Xoff
  • Serial Operating Mode: 20 mA/TTY
  • Network: 10/100BaseT autosensing/auto-MDIX, RJ45 (IPv6 on request)
  • Galvanic Isolation: Network connection min. 1500 volts

Power Supply:

  • Supply Voltage: Power-over-Ethernet (PoE) or DC 12 V … 48 V (+/–10%) or AC 18 V_eff … 30 V_eff (+/–10%)
  • Power Connection: Pluggable screw terminal, 5.08 mm pitch, labeled “L+” and “M”
  • Current Consumption:
    • PoE Class 1 (0.44 … 3.84 W)
    • Typical 90 mA @ 24 V DC, max. 110 mA @ 24 V DC with external supply

Indicators:

  • 1× LED Power
  • 1× LED Status
  • 2× LEDs Network Status

Housing and Other Data:

  • Housing: Plastic small enclosure for DIN rail mounting
  • Dimensions: 105 × 22 × 75 mm (L × W × H)
  • Protection Class: IP20
  • Weight: approx. 120 g
  • Ambient Temperature:
    • Storage: –40 … +70 °C
    • Operation: 0 … +60 °C (70 °C on request)
  • Permissible Humidity: 5 … 95 % relative humidity, non-condensing

Scope of Delivery:

  • 1× Com-Server 20 mA
  • 1× Quick Start Guide

Manufacturer Information:

Wiesemann & Theis GmbH

Porschestr. 12

42279 Wuppertal
Germany

Phone: +49 202/2680-0

Email: info@wut.de


Responsible person:

Didactum® Security GmbH

Marsweg 17

48163 Münster
Deutschland

Fon: (+49) 250 19 71 63 54 / (+49) 171 33 11 577

Email: info@didactum-security.de

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