With the introduction of Sync-E, it is of utmost importance to determine whether the clock, which is sent to NodeBs or MSANs, is within the quality requirements in terms of stability. Sync-E requires wander measurements during commissioning, installation and troubleshooting.

The Sync-E TAP is a fully passive and transparent (data and clock) network device; connected Ethernet traffic is not influenced at all. The device extracts the 125MHz Ethernet clock from an optical Gigabit signal. This 125MHz output signal is 100% synchronized to line signal and can be passed to a SyncWatch probe for TIE, MTIE and TDEV analysis and comparison