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

  • Costing transit is complicated case
    August 19, 2015
    David Crawford welcomes fresh thinking from Canada. Public transit improvements can bring society “significantly more value” than conventional transport models normally indicate, argues Canadian researcher Todd Litman. “Traditional evaluation practices originally developed to assess roadway improvements, and focus primarily on vehicle travel speeds and operating costs. “They do not generally quantify or monetise basic mobility benefits, vehicle ownership and parking cost savings, or efficient land developme
    Read More
  • Integrating traffic management and tolling technologies
    April 25, 2013
    Jamie Surkont, head of road safety enforcement with Kapsch, outlines the company’s efforts to set up and align new traffic management business units with its more widely recognised tolling expertise The blurring of ITS applications’ edges brought about by systems’ increasing functionalities will ensure that many of the technologies which we have come to rely on for road and traffic management will find it increasingly difficult to exist or operate within tight market verticals. At the same time, systems man
    Read More
  • B&C Transit modernises Miami-Dade Metrorail’s control systems
    June 1, 2016
    Jason Gomez and Daniel Mondesir describe how passenger disruption was minimised during a major upgrading of the control room of Miami-Dade’s Metrorail. In 1984 when the Miami-Dade Department of Transportation and Public Works’ (DTPW) Metrorail system was launched in southern Florida, trains ran 18km along a single line and stopped at 10 stations.
    Read More
  • Teledyne Dalsa’s Linea cameras for railway safety
    October 28, 2016
    Designed for demanding railway safety applications, Teledyne Dalsa’s Linea line scan cameras offer excellent sensitivity and speed. Compact, resilient and robust, their smallruggedized enclosure allows for easy integration and is built to withstand harsh environmental conditions. Linea cameras take full advantage of GigE technology, transmitting data over standard CAT-5e and CAT-6 cables to distances of up to 100m, allowing for a greater distance between the camera and inspection system.
    Read More

Highlighted Content