The invention may be used in many different types of applications including communication interface devices that convert {HEAD ~ DS3} to {TAIL ~ STS} 1, and STS 1 to DS3 
to
The invention may be used in many different types of applications including communication interface devices that convert { HEAD ~ DS3 } to { TAIL ~ STS } 1 , and STS 1 to DS3
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH