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

  • Evidence growing for distance-based charging
    January 18, 2012
    The case is growing for an alternative to fuel taxation for funding highway infrastructure. A more sustainable system of mileage-based charging can be established in a way that is acceptable to the travelling public, writes Jack Opiola. Fuel tax - the lifeblood relied on for 80 years to maintain and improve roads and transit systems - is now in considerable jeopardy in the United States. Increased vehicle fuel efficiency and a poor economy already hamper generation of fuel tax revenue; now a recent federal
  • Future-proofing transportation with a one-stop optical network solution
    July 20, 2021
    Huawei is helping transportation customers leverage optical transmission networks to optimise their communications and ensure business survival in the fast-changing worlds of road, rail, aviation, maritime and logistics
  • Kapsch equips high speed line in Spain with latest train communication technology
    April 2, 2012
    Kapsch CarrierCom has successfully implemented the latest train security and communication technology on the first high speed line in the Galicia region in the North West of Spain. The route between Orense and Santiago covers 87 km of tracks with 29 km of tunnels through a very mountainous area. Kapsch has been the Base Station Subsystem (BSS) GSM-R system turnkey supplier including network design, network integration and optimisation to the project. The company has also supplied all site infrastructure req
  • Rapid growth of bus rapid transit schemes on US Pacific coast
    January 27, 2012
    This section pulls together all the multi-modal topics in each issue. Subject matter will include smartcards; ticketing and payment systems; passenger information systems; fleet management for buses, trains and light rail; park and ride systems; on-line access to real-time information via Internet portals