Flexibility for Diverse Business Requirements
S U P P O R T O F M U LT I P L E
TO P O L O G I E S
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 manage- ment information can reach the access nodes from the Alcatel- Lucent 1353 LMS through either in-band or out-band mechanisms.
S U P P O R T O F M U LT I P L E
T R A N S P O R T O P T I O N S
The Alcatel-Lucent 1540 Litespan and Alcatel-Lucent 1353 LMS integrate plesiochronous digital hierarchy (PDH) or SDH transport mechanisms toward the switching and data networks. PDH, asynchro- nous 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 external 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 inter- faces 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.
8 Alcatel-Lucent 1353 LMS
