PM5389

   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 

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