SOURCE: Lilee Systems

Lilee Systems

June 04, 2013 06:00 ET

Lilee Systems Announces the Availability of the Industry's First Commercially Available Wayside Status Relay Service (WSRS)

WSRS Augments the Functionality of the 220 MHz PTC Radio Network to Assist Rail and Transit Operators in Meeting the Rail Safety Improvement Act's Deadline for Positive Train Control

PHILADELPHIA, PA--(Marketwired - Jun 4, 2013) - RAIL CONFERENCE -- Lilee Systems, a member of the American Passenger Transportation Association (APTA) and the leading provider of advanced communication systems designed exclusively for the rail and rail transit industry, today announced the availability of the first commercially available interoperable, ITC-compliant Wayside Status Relay Service. WSRS is the latest addition to Lilee Systems' portfolio of messaging system products and services designed to provide rail transit agencies with interoperable solutions that enable them to meet the Rail Safety Improvement Act (RSIA) mandated deadline of December 31, 2015 for Positive Train Control (PTC).

Rail transit agencies face significant financial, schedule, and programmatic challenges to address the letter and spirit of the RSIA mandate. Existing proprietary communication systems often have high entry and on-going support licensing costs, negatively impacting an agency's finances. Lilee Systems reduces the cost and complexity of installation and maintenance with its industry-leading interoperable PTC platform comprised of the WSRS, IEEE 802.15.4p draft-standard-compliant 220 MHz base and locomotive radios, Wayside Messaging Servers (WMS), and back office mobile IP controllers.

The WSRS enhances system performance by providing relay, switchover, and status subscription features to the rail communications network, and establishing seamless interoperability with neighboring foreign roads which may also implement the interoperable messaging system. The WSRS accepts Edge Messaging Protocol (EMP) messages from Wayside Interface Units (WIUs) in the field and forwards those messages to interested and authorized parties, based on configured parameters in the WSRS. The WSRS also manages subscriptions to WIUs for other applications, and can be configured to extend the network's coverage via 220 MHz, cellular, Wi-Fi or other wireless media, which can be especially beneficial where licensed spectrum is unreasonably expensive, or when large geographical obstructions could otherwise inhibit peer-to-peer radio communications.

"Designed in full accordance with ITC interoperability requirements, our commercially available WSRS is currently being implemented to support interoperability between one of the nation's largest rail transits and two Class I railroads," said Kevin Nichter, director of product line management for Lilee Systems. "Other transit systems and railroads can lower their PTC implementation risk by using a well-proven product such as the Lilee Systems WSRS."

About Lilee Systems
Founded by leaders in the wireless industry and headquartered in California's Silicon Valley, Lilee Systems is the leading vendor of wired and wireless IP-networked communications products and solutions focused exclusively on the railroad and rail transit industry. Team members have extensive backgrounds in IP routing and switching, standardized LMR communications, and have been voting members of the IEEE 802.11 Wi-Fi, 802.15 WPAN, and 802.16 WiMAX working groups for many years. The company's extensive experience in Software-Defined Radio (SDR) technology makes Lilee unique in the industry. By leveraging its core competencies in radio frequency (RF) systems and networking, Lilee Systems has developed the TransAir family, including the PTC-3000 series 220 MHz Radio Transceiver, the WMS-2000 Wayside Messaging Server, the LMC-5000 series Mobility Controller, and Communications Manager units to offer a complete end-to-end interoperable IP-based communications network. For more information, please visit

Lilee Systems, TransAir, and the Lilee Systems logo are trademarks of Lilee Systems. All other brands, products, or service names are or may be trademarks or service marks of their respective owners.

Contact Information

  • Contacts:
    Denise Nelson
    Ventana Public Relations
    (925) 837-6277
    Email Contact

    Tami Kurth
    Lilee Systems
    (408) 212-5524
    Email Contact