如果能，是否可以构成冗余的双环形网络来保证自动化系统的可靠性？
If so, is it possible to make it a redundancy double (dual) ring network to ensure the high reliability of the automation system?
如果能，是否可以构成冗余的双环形网络来保证自动化系统的可靠性？
Research on Wavelength Assignment and Network Embedding Based on WDM Double Loop Networks;
介绍了一种面向机群系统双环形网络拓扑结构的高速光互联网络适配器的设计和实现方法。
This paper introduces the implement methods of a high-speed optical interconnection network adapter for double token-ring network topology cluster.
针对双总线形、星形、环形和双环形四种光纤网络拓扑，比较它们的光纤需求长度、平均传播延迟、传输衰减、最大比特率及容错。
The comparison is in term of fiber required, average propagation delay, transmission loss, max bit rate, fault tolerance among four type topologies included bus, star, ring and dual ring.
针对双总线形、星形、环形和双环形四种光纤网络拓扑，比较它们的光纤需求长度、平均传播延迟、传输衰减、最大比特率及容错。
The comparison is in term of fiber required, average propagation delay, transmission loss, max bit rate, fault tolerance among four type topologies included bus, star, ring and dual ring.
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