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4. OSA 5548C

The OSA 5548C is a scalable synchronization solution known as a Synchronization Supply Unit (SSU) and a Timing Signal Generator (TSG), ranging from 20 unprotected outputs up to 1,000 protected outputs by adding up to four expansion shelves to the core unit. Its ultra-compact footprint makes it ideal for telecom operators to provide scalable network synchronization in over-crowded ex- changes. The distributed intelligence message passing system of our OSA 5548C SSU eliminates single points of failure and guarantees reliable uptime. Core unit and expansion shelves share the same modules, minimizing overall administrative complexity and enabling reduced homologation activity. In 2014, ADVA Optical Networking acquired Oscilloquartz SA from the Swatch Group.