A SONET network interface for interconnecting at least one high speed unit (HSU) with at least two low speed interface units (LSUs) to enable transmission of signals therebetween. The interface having: a common bus of predetermined bit width for interfacing the HSU unit with each of the LSU units to...http://www.google.de/patents/US6768745?utm_source=gb-gplus-sharePatent US6768745 - Flexible SONET access and transmission system
