SONET/SDH Wideband Cross-Connect - PMC-Sierra
Description
Released SONET/SDH Wideband Cross-Connect
FEATURES
GENERAL
• Multi-purpose SONET/SDH VT/TU and SONET/SDH STS/STM cross-connect.
• With a memory-switch architecture, implements a strictly non-blocking switch that supports a VT/TU level fabric of up to 25 Gbit/s.
• Supports 10 high-speed Enhanced SONET Serial Interface (ESSI) CML links each independently configurable for STS-48/STM-16 at 2.
488 Gbit/s or STS-12/STM-4 at 622.
08 Mbit/s operation.
• Supports system frame synchronization using an external frame pulse or ESSI smart frame synchronization using the frame boundary of the receive links.
• Compensates for differences in frame boundary arrival times between ingress ports using FIFOs and device level software configurable delay registers.
• Each SONET STS-1 or SDH VC3/VC4-TUG3 may be independently configured as a single unit and/or as a container of VT/TUs.
The contents may be switched intact or switched as VT/TUs.
• Allows each SONET VT Group to be independently configured to carry VT1.
5, VT2, VT3, or VT6 tributaries.
• Allows each SDH TUG2 to be independently configured to carry TU11, TU12, or TU2 tributaries.
• Provides a device latency of 5.
62 (+/-0.
17) µs for 2.
488 Gbit/s and 6.
21 (+/-0.
67) µs for 622 Mbit/s links.
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• Provides fully automatic protection switching for Class 1 protection services including 1+1 protection, UPSR, SNCP, and static mesh protection services.
• Provides hardware assists for Class 2 protection services including 1:N protection, BLSR-2/4, MSSPRING-2/4, and dynamic mesh protection schemes.
I/O AND GENERAL
• All high-speed ingress and egress links are 1.
2 V CML and are ELVDScompatible with programmable pre-emphasis on transmit, equalization on receive, and support for both AC and DC coupled interfaces.
• Each high-speed link supports SONET/SDH framed or unframed PRBS-23 or PRBS-7 generation and monitoring for off-line link verification.
• Configured, controlled, and monitored using a generic 32-bit mic...
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