{HEAD ~ An operator} may enter a desired performance by equipment on first computer which is placed in {TAIL ~ a communications packet} with a device number, channel number, and one or more parameters and then sent to central controller for processing 
{ HEAD ~ An operator } may enter a desired performance by equipment on first computer which is placed in { TAIL ~ a communications packet } with a device number , channel number , and one or more parameters and then sent to central controller for processing
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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