Description

The MARS2G5 P-Pro SONET/SDH interface device provides a versatile solution for quad OC-3, quad OC-12, and for single OC-48 linear datacom/telecom applications. Constructed using COM2 CMOS modular process, this device incorporates integrated SONET/SDH framing, section/line/path termination, pointer processing, and data engine blocks.

Features

■ One of the next-generation, system-on-a-chip devices of Agere Systems’ multiservice access & rate solutions MARSTM family of framers.

■ Transmission convergence and SONET/SDH terminal functionality for linear networks.

■ Versatile IC supports 155/622/2488 Mbits/s SONET/SDH interface solutions for packet over SONET (POS), packet over fiber (POF), or asynchronous transfer mode (ATM) applications.

■ Low-power 1.6 V/3.3 V operation.

SONET/SDH Interface

■ Termination of quad STS-3/STM-1, quad STS-12/STM-4, or single STS-48/STM-16.

■ Supports overhead processing for transport and path overhead bytes.

■ Optional insertion and extraction of overhead bytes via serial overhead interface.

■ STS pointer processing to align the receive frame to the system frame.

■ Support for 1 + 1 and 1:1 linear networks.

■ Full path termination and SPE extraction/insertion.

■ SONET/SDH compliant condition and alarm reporting.

■ Handles all concatenation levels of STS-3c to STS-48c (in multiples of 3: e.g., 3c, 6c, 9c, etc.).

■ Built-in diagnostic loopback modes.

■ Compliant with the following Telcordia Technologies?, ANSI?, and ITU standards:

— GR-253 CORE: SONET Transport Systems: Common Generic Criteria.

— ITU-T G.707: Network Node Interface for the Synchronous Digital Hierarchy.

— ITU-T G.803: Architecture of Transport Networks Based on the Synchronous Digital Hierarchy.

— T1.105: SONET-Basic Description including Multiplex Structure, Rates, and Formats.

— T1.105.02 SONET-Payload Mappings.

— T1.105.03 SONET-Jitter at Network Interfaces.

— T1.105.06 SONET Physical Layer Specifications.

— T1.105.07 SONET-Sub-STS-1 Interface Rates and Formats Specification.

— ITU-T I.432: B-ISDN User-Network InterfacePhysical Layer Specification.

— IETF RFC 2615: PPP over SONET/SDH.

— IETF RFC 1661: The Point-to-Point Protocol (PPP).

— IETF RFC 1662: PPP in HDLC-like Framing.

Data Processing

■ Provisionable data engine supports payload insertion/extraction for PPP, ATM, or HDLC streams.

■ Extraction and insertion of DS3 frames containing HDLC or ATM data streams for up to 16 channels.

■ Integrated UTOPIA Level 2 and Level 3 compatible physical layer interface for packets or ATM cells.

■ Provides/supports internal E3 mapping.

■ Supports DS3/PLCP and clear channel DS3 mapping.

■ Insertion and extraction of up to 16 separate data channels.

■ Direct cell/packet over fiber interface device.

■ Compliant with ATM forum, ITU standards, and IETF standards.

■ Supports generic framing procedure (GFP) protocol.

Interfaces

■ Enhanced UTOPIA interface for cell and packet transfer.

■ IEEE? 1149.1 port with BIST, scan, and boundry scan.

Microprocessor Interface

■ Up to 66 MHz synchronous.

■ 16-bit address and 16-bit data interface.

■ Synchronous or asynchronous modes available.

■ Configurable to operate with most commercial microprocessors.