Project Introduction
Location: China
Project Name: Water Treatment Plant in China
Products Deployed: IES-2042PA/IES-3082GP/IES-3242GC
Project Requirement
- Reliable long-distance communication
- Resilience in harsh environments
A water treatment plant in China needed dependable, real-time communications across its extensive site. The network had to overcome long transmission distances, withstand harsh conditions, and minimize interruptions to critical automation processes.
Solution
ORing built a three-layer copper-and-fiber network to support long-distance, real-time communications across the plant. At the first layer, IES-2042PA lite-managed switches connected PLCs for electromechanical automation, providing four 10/100Base-T(X) ports and two 100Base-FX SFP ports. Their compact design allowed installation within a 19-inch chassis, while interchangeable SFP modules accommodated different transmission distances. These switches linked to second-layer IES-3082GP managed switches with eight 10/100Base-TX ports and two 100/1000 Mbps SFP ports, followed by third-layer IES-3242GC managed switches with 24 10/100Base-TX ports and two Gigabit combo ports.
O-Ring and Open-Ring redundancy helped protect critical operations against network disruptions, with O-Ring supporting recovery in under 10 ms in a network of 250 switches. The switches’ −40°C to +70°C operating temperature range and rugged IP30 housings supported operation in demanding plant environments. Web-based management and a Windows utility simplified configuration, while DIP-switch settings made ring setup more convenient.
System Structure

Why Oring
- Wide operating temperature range
- Proven industrial networking experience
- Efficient network operation