Project Introduction

Location: China

Project Name: Interlock Control System of China HSR

Products Deployed: RES-3242GC-E

Project Requirement

• Network, power, and data redundancy
• Centralized network management
• Durability in harsh environments

Opened on October 26, 2010, the Shanghai-Hangzhou High-Speed Railway, also known as the HuHang High-Speed Railway, spans 202 km, serving Shanghai’s Minhang, Songjiang, and Jinshan districts and the cities of Jiaxing and Hangzhou in Zhejiang Province. Its eight stations and two turnouts are coordinated by the HuHang Intercity Station of the Shanghai Customer Specialist Center. The railway required a resilient interlocking communication network to connect regional controllers and stations, with redundancy across networking, power, and data to support coordinated operations and emergency control.

Solution

ORing deployed 20 RES-3242GC-E Ethernet switches, with two switches at each train station providing dual-link network redundancy. Each switch connected to two servers using RAID 1 for data redundancy, while interconnected switch pairs provided hardware redundancy. The Ministry of Railways’ SDH transmission network carried communications between substations and the main station.

Each regional section used a central logic controller (CLC) to manage communications with the main station and station-to-station interfaces. Zone logic controllers (ZLCs) handled emergency control terminals and other equipment, exchanging information with the central station through a dedicated redundant channel. Together, these components formed a regional computer network supporting real-time emergency control.

System Structure

Why Oring

• Industrial design with a wide operating temperature range
• Flexible installation and high-speed communication
• Five-year warranty