Skip to main content

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).

Related Content

  • Do satellites provide a heavenly view of tolling’s future?
    December 16, 2014
    Satellite-based tolling opens up new options for authorities and can be integrated with DSRC systems as David Crawford discovers. As the proud custodian of the European Union (EU)’s longest road network covered by a single (truck) charging scheme – and the only one to include all major roads - Slovakia has become the continent’s poster-nation for the virtues of GNSS/CN (Global Navigation Satellite System/Cellular Network)-based tolling. It is also proved to be a very fast implementer. Speaking at the 2014 I
  • Traffic management to the fore at Vision 2014
    December 8, 2014
    Colin Sowman reviews some of the traffic-related exhibits at the 2014 Vision Show in Stuttgart. Traffic was a major theme at this years’ Vision Show in Stuttgart and several manufacturers used the exhibition to highlight their traffic-related equipment and applications.
  • Thales Siemens JV wins Spanish high speed rail contract
    August 17, 2015
    Spanish rail administrator Adif has awarded the Thales and Siemens joint venture a US$38.6 million contract to carry out works for the signalling facilities, train protection systems, fixed telecommunications and centralised traffic control for the Chamartín-Torrejón de Velasco section of Spain’s high speed rail network. The project also includes work on the 7.3 km long Atocha-Chamartín tunnel and a maintenance period of 36 months. Siemens Rail Automation will be responsible for modernising the Trackguar
  • Traffic Data Systems detects success ahead
    March 29, 2022
    At Intertraffic 2022, Traffic Data Systems is introducing the TDS 824, a brand-new detector/classifier module for eight channels (four lanes with double loops). It has been developed for roadside remote stations and traffic light systems in demanding situations. The TDS 824 will satisfy customer requirements for effectively decoupling external interference, for example from trams and other sources.