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 business units. At a single location, the LoopStar 1600 can cost effectively provide 48 10/100BTs or 12 GigEs or a combination of both. The LoopStar 800 can cost effectively provide. | LoopStar 800 810 1600 SONET Access Systems Ethernet Business Service Delivery Applications The LoopStar 800 810 1600 SONET Access Systems enable service providers to optimize the use of their fiber facilities by delivering Ethernet business services from a low-cost flexible and compact next-generation SONET network element. Overview 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 business units. At a single location the LoopStar 1600 can cost effectively provide 48 10 100BTs or 12 GigEs or a combination of both. The LoopStar 800 can cost effectively provide 32 10 100BTs or 8 GigEs or a combination of both and the LoopStar 810 can cost effectively provide 16 10 100BTs. APPLICATION NOTE LoopStar 800 System 1-952-938-8080 1-800-366-3891 Bandwidth Efficiency The LoopStar 800 810 1600 feature both high and low order virtual concatenation VCAT for mapping Ethernet traffic into SONET. This provides a significant increase in the efficiency of the SONET pipe over previous STS-1 limited mapping. High order VCAT scales in 50 Mbps increments while low order VCAT scales in Mbps increments. The table below shows the increased efficiency of using high order and low order VCAT to transmit Ethernet services over SONET. Service Interface Bit Rate Utilization without VCAT Utilization with VCAT Ethernet 10 Mbps STS1 20 VT -7 80 Fast Ethernet 100 Mbps STS-3c 67 STS-1 2 100 Gigabit Ethernet 1000 Mbps STS-48c 42 STS-1 20 100 APPLICATION NOTE The Generic Framing Procedure GFP protocol of mapping Ethernet into SONET is also .