Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Ethernet via two-wire cabling for new and existing systems

  • Using two-wire cabling for Ethernet with the MM992-2VD media module
  • Low-cost solution for upgrading existing cabling infrastructure, such as for migrating Profibus to Profinet
  • Ethernet data transfer over distances of up to 1,000 meters

The new MM992-2VD (Variable Distance) media module from Siemens enables the use of two-wire cabling, such as Profibus cables, for Ethernet communication, without the need for additional hardware such as modems.

The MM992-2VD media module permits the transfer of data across distances of up to 1,000 meters. The bandwidth depends on the length and quality of the cable, but as a general rule, bandwidths of 100 Mbit/s can be implemented at a distance of 500 meters, and cables of 1,000 meters in length have bandwidths of 10 Mbit/s.

Cables are connected to the media module via an RJ45 connector. The MM992-2VD media module can be used with all modular switches in the Scalance X-300 range, as well as with the Scalance S627-2M security module.

With the MM992-2VD media module, existing cable infrastructure within machinery and plants is able to be converted to an Ethernet network quickly and economically. This solution, developed by Siemens, represents an uncomplicated method of migrating to Profinet, particularly in view of the wide use of Profibus cabling.

In addition, the media module can be used within Ethernet networks to extend the maximum Ethernet cable length for bandwidths of 100 Mbit/s as defined in the standard - the MM992-2VD enables the simple integration of remote network nodes into plant networks at distances of over 100 and up to a maximum of 300 meters using standard copper cables instead of the glass fiber optic cables previously necessary for such Ethernet connections.

For further information about the new VD media module, see:

Siemens at the Hannover Messe:

The Siemens Industry Sector (Erlangen, Germany) is the world's leading supplier of innovative and environmentally friendly automation and drive technology, industrial software and technology-based services. The Sector's comprehensive portfolio covers the entire industrial value chain, from product design, engineering and production to services. Siemens enhances its customers' productivity, efficiency, and flexibility in a wide variety of different industries. With a global workforce of more than 100,000 employees, the Industry Sector comprises the Divisions Industry Automation, Drive Technologies and Customer Services as well as the Business Unit Metals Technologies. For more information, visit

Reference Number: I2014032412e


Mr. Peter Jefimiec
Industry Automation Division

Siemens AG

Gleiwitzerstr. 555

90475  Nuremberg


Tel: +49 (911) 895-7975

Peter Jefimiec | Siemens Sektor Industry

Further reports about: Automation Ethernet Profibus Scalance connections employees existing networks

More articles from Machine Engineering:

nachricht Process-Integrated Inspection for Ultrasound-Supported Friction Stir Welding of Metal Hybrid-Joints
27.09.2016 | Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren IZFP

nachricht Lightweight robots in manual assembly
13.09.2016 | Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO

All articles from Machine Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

Im Focus: Diamonds aren't forever: Sandia, Harvard team create first quantum computer bridge

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.

"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...

Im Focus: New Products - Highlights of COMPAMED 2016

COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.

In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...

Im Focus: Ultra-thin ferroelectric material for next-generation electronics

'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.

Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

Resolving the mystery of preeclampsia

21.10.2016 | Health and Medicine

Stanford researchers create new special-purpose computer that may someday save us billions

21.10.2016 | Information Technology

From ancient fossils to future cars

21.10.2016 | Materials Sciences

More VideoLinks >>>