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 {HEAD ~ a function} of {TAIL ~ a STS 1 local clock} 
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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 { HEAD ~ a function } of { TAIL ~ a STS 1 local clock }
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 HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL