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LoopStar® 800/1600 SONET Access System DS3 Transmux Card Provides DACS Functionality

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As bandwidth needs have increased, enterprise customers have found it more economical to aggregate traffic from remote offices and have it backhauled to the data center via a DS3. For the carrier, this presents a problem. The carrier must be able to access the DS1s within the DS3 and then cross-connect them to the appropriate VT1.5s within the SONET payload. Traditionally, this operation has been performed using a Digital Cross-Connect System (DCS) and a SONET ADM. Obviously, requiring two separate devices for this function increases CAPEX and OPEX for the carrier. With the LoopStar 800/1600 SONET Access System’s DS3 Transmux card, there is now a simpler, more. | LoopStar 800 1600 SONET Access System DS3 Transmux Card Provides DACS Functionality As bandwidth needs have increased enterprise customers have found it more economical to aggregate traffic from remote offices and have it backhauled to the data center via a DS3. For the carrier this presents a problem. The carrier must be able to access the DS1s within the DS3 and then cross-connect them to the appropriate VT1.5s within the SONET payload. Traditionally this operation has been performed using a Digital Cross-Connect System DCS and a SONET ADM. Obviously requiring two separate devices for this function increases CAPEX and OPEX for the carrier. With the LoopStar 800 1600 SONET Access System s DS3 Transmux card there is now a simpler more economical solution for this problem. Standard DS3 Point-to-Point DS3 SONET DS3 Interface CTC 1 44 0 1 oq nç 1 c 1 1 DS3 3 SIS-I 3 I-28 DSIS Transmux Card APPLICATION NOTE Transmux DACS-like Functionality DS3 1 STS-1 1 SONET Interface Card Any VT1.5 to any DS1 within a DS3 DS3 2 DS3 3 STS-1 2 DS3 5 DS3 4 DS3 6 www.adc.com 1-952-938-8080 1-800-366-3891 Functionality The DS3 Transmux card is capable of terminating up to 6 DS3 electrical signals. Currently two of these cards can be deployed in the LoopStar 800 1600 SONET equipment providing a total of 12 DS3 connections. A protection card with front test access ports is also available. Since the LoopStar 800 1600 SONET Access System supports VT1.5 grooming a carrier can provide T1s to their end customers transport them as VT1.5s over the SONET network and then efficiently multiplex them into the appropriate DS3s for backhaul to the customer s data center. Without the DS3 Transmux card each of these VT1.5s would need to be cross-connected to a DS1 and then electrically dropped to a DCS which would multiplex the DS1s into a DS3 for transport. Providing both VT1.5 grooming and the transmux functionality in a single platform reduces both CAPEX and OPEX while providing maximum service .