High-speed rail lines and main line rails serve different markets but share similar requirements for supporting voice, video, low and high speed data, and real time information between control centers, trains and stations. In addition, each system also has unique applications. For example:
• High-speed trains are heavily computerized, with many communications and signaling functions controlled digitally.
• Main line carriers are moving towards network management, train control and electronic interlocking systems controlled in a few central locations.