{HEAD ~ Apparatus} for converting a DS3 digital signal in a DS3 frame format to a STS 1 digital signal in an STS 1 frame format as a function of {TAIL ~ a STS 1 local clock} 
{ HEAD ~ Apparatus } for converting a DS3 digital signal in a DS3 frame format to a STS 1 digital signal in an STS 1 frame format as a function of { TAIL ~ a STS 1 local clock }
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH 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 TAIL TAIL TAIL