Spain's National Railway Turns to RAD to Connect Remote Sites over SHSDL Infrastructure

October 20, 2005: Spain's Administrator of Railway Infrastructure (known by its Spanish acronym ADIF) has chosen SHDSL modems from RAD Data Communications to ensure the interoperability required to connect remote sites and offices over existing copper infrastructure to its broadband network.

By deploying RAD's ASMi-52 intelligent SHDSL modems, ADIF will be able to proceed with its network improvement plan that will allow it to be ready to rollout the types of new services that will be required in the future. Within one year ADIF will have connected approximately 150 links using the

ASMi-52. "Interoperability with our existing installed base was one of our primary concerns," explained Carlos Rincon, Telematics and Telephony Operations Manager at ADIF. "The ASMi-52's successful integration has proven that we made the right choice."

ADIF's telecommunications infrastructure is based on a nationwide fiber optics network that serves RENFE, Spain's national railway, and its railway stations, control points, signaling, data, and telephony, while also providing dark fiber services for the country’s main telecom operators.

"The ASMi-52's flexibility and cost-effectiveness were the keys to providing a very effective solution to allow ADIF to bring the benefits of its high speed fiber optic infrastructure to remote sites over copper," noted Javier Alonso, Product Manager at Dominion Ingeniería, the RAD distributor that proposed the solution to ADIF.

The ASMi-52 modem uses SHDSL technology, complying with the ITU and ETSI standards, to extend the range of digital interfaces. It offers extended distances and variable data rates up to 2.3 Mbps over 2-wire and 4.6 Mbps over 4-wire. The modem uses TC PAM-16 line coding, equalization, adaptive filtering and echo cancellation to compensate for line impairments, bridge taps and mixed cabling. This provides high immunity to background noise and enables transmission of multiple SHDSL lines on the same physical cable.

"RAD offers a wide range of communication solutions for transportation networks in general and the railway industry in particular," stated Jose Aronson, Regional Sales Manager for Iberia at RAD Data Communications. "Our diverse and innovative standards-based products provide connectivity for all the mission-critical applications and services required in today’s railway environment."

ADIF (an acronym for Administrador de Infraestructuras Ferroviarias) is a public company established by the Railway Sector Law that went into effect in Spain on January 1, 2005. ADIF was established and charged with the task of applying the criteria that optimize available resources to assure the public interest, to meet society's needs with maximum quality and guarantee the security of users and the global effectiveness of the railway system. ADIF's mission includes the management of railway traffic, the administration of infrastructure, the codification of rules, and the contracting of infrastructure as instructed by the nation's government.

 

ADIF site: www.adif.es

 

Dominion Ingeniería is one of Spain's principal telecommunications integrators. Founded in 1999 with the participation of INSSEC, Dominion is comprised of three main groups: Dominion Ingeniería, Dominion Tecnologías de la Información and Dominion Logística.

 

Dominion site: www.dominion.es