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 {HEAD ~ a STS 1 local clock} 
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 { HEAD ~ a STS 1 local clock }
OTH OTH OTH 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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD