Introduction to the SDH

Service providers worldwide are faced with the challenge of modernizing their transport networks to accommodate new high bandwidth IP services, such as broadband Internet access and video-on-demand, in addition to today's revenue-generating voice and leased-line services. Teralight multi service optical transport platform is a next-generation solution designed specifically to meet this challenge.

Deployed in carriers' access, metro and interoffice (IOF) networks, the Traverse platform transports and manages any combination of traditional electrical TDM and optical SONET/SDH services as well as next-generation switched Ethernet services more efficiently and cost-effectively than legacy solutions.

Teralight Ltd Solution

The Traverse platform simplifies carriers' transport networks and lowers their costs by integrating the functions of a SONET/SDH add-drop multiplexer (ADM), a digital cross-connect system (DCS), and an Ethernet switch in a single compact shelf.

The Traverse platform's design also supports a wide variety of electrical and optical service interfaces including DS1, E1, DS3/EC-1 (Clear Channel and Trans mux), E3,
OC-3/STM-1, OC-12/STM-4, OC-48/STM-16, OC-192/STM-64, as well as switched Fast Ethernet and Gigabit Ethernet. This flexibility lowers carriers capital and operational expenditures by reducing the need to purchase and manage multiple separate ADM, DCS, and Ethernet switching systems, as well as the rack space and power they would require.

The Traverse platform supports standard SONET/SDH features such as: comprehensive performance monitoring, the ability to aggregate and groom TDM traffic at both wideband (STS/VC) and broadband (STS/STM) granularities, and applications such as 1+1 point-to-point, linear ADM, optical hub, and protected rings.

In addition to these standard capabilities, the Traverse platform incorporates powerful
Ethernet traffic management and Layer 2 Ethernet switching with advanced standards such as GFP, VCAT, LCAS, RSTP, and Link Aggregation to ensure optimized transport of IP/Ethernet traffic over SONET/SDH networks. This SONET/SDH-based, packet-optimized architecture enables the Traverse platform to integrate seamlessly with carriers existing networks and protect today's investments, while laying the groundwork for future expansions into new technologies.

The Traverse platform supports a variety of carrier-class applications. The system is developed to enable solutions that service providers can implement in today’s highly competitive communications markets.