PM5334 SPECTRA 2x2488
Single-chip SONET/SDH Transport Framer
Released Product Brief
Product Overview
The PM5334 SPECTRA 2x2488 device is a feature rich, high-
capacity single-chip SONET/SDH transport framer solution that
enables high-density optical tributary cards for chassis-based
MSPPs, packet MSPPs and ROADMs. The SPECTRA 2x2488 enables
5 Gbit/s of multi-rate multi-port support with unprecedented
power efficiency and carrier-grade reliability
The SPECTRA 2x2488 consists of SONET/SDH line interfaces and
framers with integrated SERDES, including full section, line and
high-order (HO) path processors, non-blocking memory-based HO
STS/AU cross-connect, and TFI-5 compatible ESSI serial backplane
interfaces. The HO cross-connect enables support for selecting
between working, protection and APS traffic.
Product Highlights
SONET/SDH Network Interface and Framer
(ARROW)
•
Two groups of four SONET/SDH interfaces, each group
supporting two modes of operation:
Quad OC-12/3/STM-4/1 mode (four interfaces operating at
622.08 Mbit/s or 155.52 Mbit/s, selectable per port)
•
Single OC-48/STM-16 mode (one interface operating at
2488.32 Mbit/s)
•
CML compatible serial interfaces to connect to optical
transceivers
•
•
Framing, high-order pointer processing, alarm processing and
overhead processing on all received network streams
Benefits
•
Enables high-port count, multi-rate optical line cards, while
offering power and space savings
•
Dedicated pins to extract/insert IEC code and N1 path overhead
byte for Tandem Connection Monitoring
•
Per-framer connection ID message, allowing verification of high
order path connectivity across single or multistage fabrics
•
Integrates multi-rate SERDES for direct connect to SFP modules,
reducing system cost
•
BLSR and MS-SPRing protection switching with alarm
processing, K-byte express, automatic payload configuration,
and other features
•
Integrates best-in-class serial backplane technology, supporting
long trace lengths and bit-sliced architectures
•
Insertion/extraction of transport overhead (TOH) bytes from the
line side interface
•
Integrates field-proven CHESS™ intellectual property,
dramatically reducing development cycles through reuse of
CHESS software base
STS/AU Intelligent Cross-Connect (TSE)
•
Memory-based, HO cross-connect capable of switching between
any port to any port at STS-1/AU-3 granularity
•
12.5 Gbit/s of floating delay management
•
TSE subsystem provides the TOH byte insertion and extraction
on 24 ports (99 TOH bytes per port)
Block Diagram
Line
Side
TCM
TCM
Insert
Extract
SERDES
SERDES
SERDES
SERDES
SERDES
SERDES
SERDES
SERDES
TOH/DCC
Insert
Extract
SONET/
SDH
Framers
SONET/
SDH
Framers
System
Side
•
Support for a set of active and standby configuration memory
pages, permitting new switch settings to be updated in one
page while the TSE operates from the control settings of the
other page
SPECTRA 2x2488
ARROW
TSE
Skew
Buffer
Skew
Buffer
ESSI Serial
16 x 2.5 G /
16 x 622 M
Parallel
Telecom Bus
77.76 MHz
•
2.5 Gbit/s to/from 622 Mbit/s interleaving/de-interleaving
•
Multiplexing scheme enables different port asset allocations for
different applications
Core Traffic
Switch
(STS/AU)
OC-48/12/3
STM-16/4/1
3x
OC-12/3
STM-4/1
OC-48/12/3
STM-16/4/1
3x
OC-12/3
STM-4/1
Package
•
35 x 35 mm 1152-ball FCBGA
TOH/
DCC
ESSI Serial
4 x 2.5G / 622M
(APS)
PMC-2072076, Issue 2
© Copyright PMC-Sierra, Inc. 2008
All rights reserved. Proprietary and Confidential to PMC-Sierra, Inc. and for its customers’ internal use.
PMC [ PMC-SIERRA, INC ]
