SONET/SDH interface for OC-3/STM-1 (155.52 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.