The remote card processing unit is in {TAIL ~ communication} with {HEAD ~ a computer network} including a central computer system 
The remote card processing unit is in { TAIL ~ communication } with { HEAD ~ a computer network } including a central computer system
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH