Flexibility for diverse business requirements
Support of multiple topologies
Star, ring, tree, point-to-point and mixed topologies are all supported by the Alcatel-Lucent Litespan family. All topologies can be super- vised from the Alcatel-Lucent 1353 LMS Map Manager. In all of these topologies, network management information can reach the access nodes from the Alcatel-Lucent 1353 LMS through either in-band or out-band mechanisms.
Support of multiple transport options
The Alcatel-Lucent 1540 Litespan and Alcatel-Lucent 1353 LMS inte- grate plesiochronous digital hierarchy (PDH) or SDH and Ethernet over SDH transport mechanisms toward the switching and data networks. PDH, asynchronous transfer mode (ATM) and Ethernet transport capabilities are also in the system. Transport is supported between
Alcatel-Lucent Litespan exchange units (EUs) and remote units (RUs) using HDSL or G.SHDSL transport protocols, fiber connections or exter- nal leased-line networks.
Equally important, broadband (xDSL) and narrowband (voice and leased-line data) traffic can share the same fiber (SDH STM-1 or STM-4). Broadband (xDSL) traffic can be routed through STM-1 optical or E3/ DS3 electrical interfaces toward the ATM backbone. For its part, xDSL traffic can be redirected toward the backbone (typically IP) over Ethernet (1000Base-SX, 1000Base- LX, 1000Base-EX, 1000Base-ZX and 1000Base-TX). This increases flexibility when connecting to the IP data backbone through metro Ethernet networks. You can manage all of these transport options with the Alcatel-Lucent 1353 LMS.
8Alcatel-Lucent 1353 Litespan Management System (LMS)
