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Public Transportation

City Traffic Signal Centralization in Asia

  • Situation
  • A carrier in APAC (Asia-Pacific) wanted to centralize whole city traffic signal control system into the control center. That offers a unified real-time view into whole city traffic signals.

  • Solution
  • - Loop-AM3440 with 2 wire E&M cards to convert analog traffic signals to 64kbps DS0 and multiplexed onto AM3440 E1/T1 cards. The E1/T1 line was connected to SDH/SONET equipment and transported in SDH/SONET network to the control center. 
  • - Loop-AM3440 provided a variety of TDM, packet access and voice interfaces for customers to fulfill the needs of future expansion and other application services.

 

Traffic Signal Control System

  • Above and Beyond
  • - AM3440 also supports TDM circuit emulation protocols. TDM data and voice services can be encapsulated as Pseudowire and transported over ETH/IP/MPLS switch network.
  • - As the communication network migrates from TDM to IP, AM3440 provides a flexible and cost-effective choice for the transport of legacy TDM signals.