High-speed SHDSL Ethernet extender

Westermo's DDW-120 Ethernet extender allows existing twisted pair cables to be used to establish a high-speed remote connection between two Ethernet networks.
February 3, 2012 Read time: 1 min
2198 Westermo's DDW-120 Ethernet extender allows existing twisted pair cables to be used to establish a high-speed remote connection between two Ethernet networks. The company claims this is an easy-to-install alternative to optic-fibre or radio systems when linking remote Ethernet networks.

The device employs a transient blocking unit on each line interface to provide both over-current and over-voltage protection, allowing the line to handle indirect lightning strike transients, power induction and short circuit problems.

The DDW-120 uses twisted pair cables rather than expensive optical fibres or radio links. This plug-and-play unit covers many applications, offering data rates from 192Kbit/s to 5.7Mbit/s in both directions over distances of up to 15km (10 miles).
Networking & Communication Systems

For more information on companies in this article

Related Content

  • Tolling systems - interoperability is key
    January 25, 2012
    Is US tolling as fragmented and divided as some would have you believe? And are the technology suppliers so very entrenched? ITS International spoke to the market's leading suppliers. A few years back, the prevalent view was that the North American tolling market was characterised by fragmented, proprietary solutions, each existing in splendid isolation. The reality is that a combination of pragmatism and good old market forces have seen some concerted moves made towards interoperability in many areas.
    Read More
  • Caltrans develops remote remedy for ailing VMS
    February 18, 2014
    A remote diagnostic system for variable message signs keeps Caltrans staff safer and makes them more efficient. District 12 of the California Department of Transportation (Caltrans) maintains roads in Orange County including 292 route miles of freeway lanes and 240 directional miles of full-time high occupancy vehicle or carpool lanes. All of these lanes are controlled from the district’s transportation management centre (TMC) using a network of 58 variable message signs (VMS) positioned alongside or abo
    Read More
  • Network video alternative to machine vision in urban applications
    January 11, 2013
    It would be easy to fall into the trap of seeing machine vision as the vision-based solution for ITS and traffic, however Patrik Anderson, Director Business Development Transportation of Axis Communications, notes that many of the applications which are coming to be associated with machine vision – and, indeed, many of the characteristics, such as at-the-edge analytics and image processing – are also possible with open-standard networked video. Networked video brings a whole host of advantages, such as the
    Read More
  • Airborne traffic monitoring - the future?
    March 1, 2013
    A new frontier in the quest to monitor road traffic is opening up… but using airborne drones to reduce the jams comes with some thorny issues. Chris Tindall reports. Imagine if you could rely on a system that provided all the data you needed to regulate traffic flow, route vehicles and respond swiftly to emergencies for a fraction of the cost of piloting a helicopter. That system exists, but as engineers and traffic managers start to explore the potential of unmanned aerial vehicles (UAVs) – more commonly k
    Read More

Highlighted Content