{HEAD ~ Apparatus} for converting {TAIL ~ 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 a STS 1 local clock 
for converting
{ HEAD ~ Apparatus } for converting { TAIL ~ 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 a STS 1 local clock
HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL 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