Couple Several Turbo Rings for Distributed Applications 

For some systems, it may not be convenient to connect all devices in the system to create one BIG redundant ring, since some devices could be located at a remote site. The NPort S8455I-MM-SC supports Turbo Ring’s ”Ring Coupling” function, which allows you to separate distributed devices into different smaller redundant rings, without a control line, and in such a way that the smaller rings will still be able to communicate with each other.

Rugged Design with Complete Protection 

1. UL508 safety 
To meet customers’critical application requirements, the NPort S8455/S8458 series has been certified to meet the UL 508 national and international standard. The UL 508 standard covers the safety requirements for industrial control equipment.
2. 3-way surge protection 
The NPort S8455/S8458 series is equipped with a surge protector for power, Ethernet interface, and serial interface for protection against voltage spikes.
3. Level 4 ESD 
The NPort S8455/S8458 series supports high level, 8/15 KV, ESD protection to avoid damage from static electricity.
4. 2 KV Serial Isolation (NPort S8455 only)
Each serial port is protected by 2 KV of isolation against harmful currents from high voltages caused by a difference in ground potential between points in a communications system.

Typical Applications could be:

Roadway Traffic Monitoring and Control
Intelligent transportation systems (ITS) are playing a major role in modern transportation construction, with ITS technology applied to roadway traffic control systems. In general, ITS involves integrating communication, control, and electronics technologies, and is used to monitor and manage traffic flow, reduce congestion, provide alternative routes to travelers, and enhance productivity to save lives,time, and money. Traffic monitoring and control systems are usually housed in a small cabinet located by the roadside or at an intersection.
Such systems usually include a camera for monitoring traffic, a traffic light control system, as well as other devices. The NPort S8455I-MMSC is the best choice for traffic monitoring and control applications, since the compact size and all-in-one switch/device-server design saves a significant amount of space in a small cabinet.

Solar Power Station 
All solar power stations include three major devices—a power inverter, a PLC, and meters. The power inverter converts the energy generated by the plant into the power that is transmitted to end-users.
The PLC controls the sun tracking system of the base. These devices are often serial devices, although some may be Ethernet-ready. Now you can connect all of these Ethernet and serial devices to the control center easily and economically with one With the NPort® S8455I-MMSC. The Ethernet redundancy function and ring structure increase the reliability and availability of the system. The NPort® S8000 series is definitely the best solution for this type of solar power system.

Read more in the whitepaper ”Five key requriments of Railway Backbone networks” (pdf)
Read more in the Whitepaper ”The Advantages of RS-485 Data Direction Control” (pdf)