Infineon Introduces SONET/SDH Framer Chips

Infineon Technologies introduced new highly integrated multi-rate, multi-channel, high-data-rate SONET/SDH framer chips designed for add/drop multiplexers (ADMs) and digital cross-connect switches. Infineon said its new single-chip Tethys devices integrate functions previously requiring up to five separate components, including aggregation of up to 16 channels of traffic, serializing/deserializing, pointer processing, clock and data recovery, and transport overhead (TOH) and path overhead (POH) processing. The first two members of the new framer family, the Tethys 448 and Tethys 4192, support high-density aggregate throughputs while meeting SONET/SDH jitter requirements. The Tethys 448 fully supports 16 channels of OC-3/STM-1, 16 channels of OC-12/STM-4, or 16 channels of OC-48/STM-16, which can be mixed in any required combination. In addition to the Tethys 448 capabilities, the Tethys 4192 adds support for four channels of OC-192/STM-64.
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