The timing server 4, wherein said third module is further configured to synchronize to said synchronization signal from said timing master upon {TAIL ~ first reception} of said synchronization signal from {HEAD ~ said timing master} 
The timing server 4 , wherein said third module is further configured to synchronize to said synchronization signal from said timing master upon { TAIL ~ first reception } of said synchronization signal from { HEAD ~ said timing master }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD