ADC’s LoopStar SONET system is designed to enable service providers to easily and economically provide Ethernet business services to enterprise customers looking to increase their bandwidth above current DS1 or DS3 speeds. These systems efficiently transport layer 2 Ethernet service over SONET while providing the level of redundancy and protection associated with traditional SONET networks. The LoopStar SONET system is designed to be rack or wall mounted for individual and/or multi-tenant busine