A fiber channel backplane configuration is capable of modular expansion, e.g., from 64 ports to 128 ports or 256 ports by a simple operation. The backplane includes connectors that provide permanent and jumper/vertical connections to support 64 user port switch in a single chassis. For a 128 port switch,...http://www.google.de/patents/US6981078?utm_source=gb-gplus-sharePatent US6981078 - Fiber channel architecture
