FEATURES

SONET/SDH INTERFACE

• Interface rate software selectable 

between OC-3/STM-1 (155.52 Mbit/s) 

and OC-12/STM-4 (622.08 Mbit/s) 

rates

• Integrated clock recovery & synthesis 

allows direct interface to low-cost 

optical transceivers

• Integrated clock synthesis generates 

line clock from 77.76 MHz reference

• Complies with Bellcore, ANSI, and ITU 

specifications for Jitter Tolerance and 

Jitter Generation

• High order path processing and 

alignment to STS-1/AU-3/TU-3 level

• Full access to all SONET/SDH 

Transport overhead bytes via a 

dedicated serial port

• Full access to all SONET/SDH STS-

1/AU-3/TU-3 path overhead bytes via a 

dedicated serial port

• Full access to all DCC bytes via a 

dedicated serial interface

• Ring Control port provides real time 

detection of error conditions and 

insertion of alarms such as AIS & RDI

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