The data are read from the card and {HEAD ~ input} to {TAIL ~ a security module} of the apparatus 
to
The data are read from the card and { HEAD ~ input } to { TAIL ~ a security module } of the apparatus
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH