Tokyo, Japan, February 20, 2014 --- Hitachi, Ltd. ( TSE:6501, “Hitachi”) announced today that it received Safety Integrity Level 4 (SIL 4*1), an international safety standard*2 for reliability, availability, maintainability and safety (RAMS*3) in wireless signaling systems for urban transport. SIL 4, the highest safety level attainable, conforms with the IEEE 1474 Standard for Communications-Based Train Control (CBTC*4) Performance and Functional Requirements. This is the first time*5 that a Japanese company has received SIL 4 certification from the European Certification Agency.
