The OSA 5548C Synchronization Supply Unit (SSU) is the latest breakthrough from Oscilloquartz, a pioneer in synchronization of SDH/SONET and mobile networks. It is designed to provide telecom operators with reliable synchronization, using the latest in hardware and software technologies. The OSA 5548C system provides a scalable synchronization solution ranging from 20 unprotected up to a thousand of 1:1 E1/2.048MHz protected outputs.