3Com 5017C-LS, 5017C with load sharing installation and operation guide Synchronous Backplane

Synchronous Backplane

The ONline System Concentrator backplane is designed with all passive components to achieve the maximum reliability. The synchronous backplane allows the concentrator to be connected (using the 3Com ONline Fiber Module) without the need for internal repeaters. This avoids the limitations of the Ethernet four-repeater rule and lets you connect up to 23 concentrators serially, without the need for an intervening repeater or bridge.

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