SONET/SDH transport overhead protocol monitor

Nov. 1, 1998

The VSC8150 monitors the integrity of a SONET/SDH signal and implements operation, administration, management and provisioning features in WDM equipment and optical crossconnects. The SONET/SDH signal is received and retimed for output at rates to 2.488 Gbits/sec and is also demultiplexed internally for processing by standard cell logic. This processing provides indication of SONET/SDH frame status (SEF/LOF) and received bit errors (B1 parity error detection) and allows the user to inspect the contents of the SONET transport overhead. Results of this processing are output from the part using 6-MHz TTL, enabling the user to implement OAM&P using programmable logic devices and eliminating the need for extensive ASIC developments. The unit can be provisioned to analyze STS-48/STM-16, STS-12/STM-4, and STS-3/STM-1 signals. The device is packaged in a 100-pin, 14-mm PQFP and costs $150 in quantities of 1000.

Vitesse Semiconductor

Camarillo, CA