1 - 12 ONline 17-Slot System Concentrator Installation and Operation Guide
Synchronous Backplane
The ONline System Conce ntrator backplane is designed w ith all passive
components to achieve the maxim um reliability. The synchronous
backplane allows the conce ntrator to be connected (usin g the 3Com
ONline Fiber Module) withou t the need for internal repe aters. This avoids
the limitations of the Ethernet four-rep eater rule and lets you connect up to
23 concentrators serially, without the need for an intervenin g repeater or
bridge.