GENERAL DESCRIPTION

The VSC9115 is a 2.5 Gb/s multi-service SONET/SDH data mapping device that supports both contiguously concatenated and virtually concatenated transport channels.

FEATURES

► 48 STS-1/VC-3, 48 TU-3/VC-3, or 16 STS-3c/VC-4 Virtual

Concatenation Groups

► Link Capacity Adjustment Scheme (LCAS) with Hitless Adds and

Removes, and Fault Isolation

► External DDR 64 bit SDRAM for Diverse Routing Applications with

Differential Delays of up to 108 ms

► Flexible Payload Processing for Generic Framing Procedure (GFP)

with Support for Several Interfacing Formats including Ethernet Frames

► Supports HDLC-Like Framing: PoS - RFC2615, LAPS - X.85, and X.86

► System Packet Interface Level 4 (SPI-4), Phase 2, 16-Bit Interface

► Dual 2.5 Gb/s Serial, STS-48/STM-16-like Backplane Interfaces or

Dual 4 x 622 Serial STS-12/STM-4-like Backplane Interfaces with

Performance Monitoring for Connection to Working and Protection

TSIs

► Two-Level Pointer Generation and Interpretation for SDH Mapping

of TU-3/VC-3 into AU-4

► Channelized Payload Mapping into AU-4/TU-3/VC-3, STS-1/VC-3,

STS-3c/VC-4, STS-12c/VC-4-4c, STS-48c/VC-4-16c, or Virtual Groups

Composed of AU-4/TU-3/VC-3s, STS-1/VC-3s, or STS-3c/VC-4s

► Extensive Performance Monitoring Features

APPLICATIONS

► Point-to-Point Linear Configurations Such as a Multi-Service Router/

Switch or Point-to-Point Transport

► SONET/SDH ADM and TSI Switching Systems

► Gigabit Ethernet Transport Applications Utilizing LAPS or GFP Frame

Encapsulations

► Point-to-point Packet-over-SONET (PoS) Router Applications

► Data Channels or Payloads Can be Shared Among up to 48 Transport

Channels by Using Contiguous Concatenation and/or Virtual Concatenation